CINXE.COM

<!DOCTYPE html> <html lang=""> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta name="generator" content="Asciidoctor 2.0.23"> <title>Incremental build</title> <style> /* * Copyright 2018 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* Custom Admonition Blocks */ body { --gradle-blue: #209BC4; --gradle-bg-dark: #010002; --gradle-bg-gray: #F8F8F8; --gradle-bg-white: #FFFFFF; --gradle-blue: #209BC4; --gradle-blue-lite: #4DC9C0; --gradle-blue-dark: #1b3262; --gradle-blue-darker: #19274f; --button-gradient-angle: 160deg; --caution-color: #e40046; --caution-on-color: #fff; --important-color: #802392; --important-on-color: #fff; --note-color: #2d7dd2; --note-on-color: #fff; --tip-color: #43b929; --tip-on-color: #fff; --warning-color: #f70; --warning-on-color: #fff; --admonition-background: #fafafa; --doc-icon-filter: invert(14.5%); --rem-base: 18; --black-color: #000; --white-color: #fff; --text-color: #02303A; --title-color: #02303A; --header-color: rgba(0, 0, 0, 0.85); --footer-color: #fff; --footer-other-text-color: #02303; --footer-form-color: #1BA8CB; --code-color: #f7f7f8; --code-text-color: rgba(0, 0, 0, 0.9); --code-link-color: #021274; --num-color: rgba(0, 0, 0, 0.8); --nav-color: #f8f8f7; --table-color: #f7f8f7; --box-shadow-color: rgba(0, 0, 0, .15); --top-header-color: #fff; --footer-white-color: #fff; --footer-text-color: #fff; --quoteblock-color: #7a2518; --menu-burger-color: #fff; --various-border-color: #e7e7e9; } body.dark-theme { --admonition-background: #2a2929; --black-color: #fff; --white-color: #121212; --text-color: #aaa; --title-color: #fff; --header-color: rgba(255, 255, 255, 0.85); --footer-color: #121212; --footer-other-text-color: #ddd; --code-color: #1f1f1f; --code-text-color: rgba(255, 255, 255, 0.9); --code-link-color: #1fafcc; --num-color: #fff; --nav-color: #121212; --table-color: #121212; --box-shadow-color: rgba(255, 255, 255, .15); --top-header-color: #242526; --footer-white-color: #242526; --footer-text-color: #aaa; --footer-form-color: #1BA8CB; --quoteblock-color: #1DA2BD; --menu-burger-color: #242526; --various-border-color: #242526; } @media (prefers-color-scheme: dark) { /* defaults to dark theme */ body { --admonition-background: #2a2929; --black-color: #fff; --white-color: #121212; --text-color: #aaa; --title-color: #fff; --header-color: rgba(255, 255, 255, 0.85); --footer-color: #121212; --footer-other-text-color: #ddd; --code-color: #1f1f1f; --code-text-color: rgba(255, 255, 255, 0.9); --code-link-color: #1fafcc; --num-color: #fff; --nav-color: #121212; --table-color: #121212; --box-shadow-color: rgba(255, 255, 255, .15); --top-header-color: #242526; --footer-white-color: #242526; --footer-text-color: #aaa; --footer-form-color: #1BA8CB; --quoteblock-color: #1DA2BD; --menu-burger-color: #242526; --various-border-color: #242526; } body.light-theme { --gradle-blue: #209BC4; --gradle-bg-dark: #010002; --gradle-bg-gray: #F8F8F8; --gradle-bg-white: #FFFFFF; --gradle-blue: #209BC4; --gradle-blue-lite: #4DC9C0; --gradle-blue-dark: #1b3262; --gradle-blue-darker: #19274f; --button-gradient-angle: 160deg; --caution-color: #e40046; --caution-on-color: #fff; --important-color: #802392; --important-on-color: #fff; --note-color: #2d7dd2; --note-on-color: #fff; --tip-color: #43b929; --tip-on-color: #fff; --warning-color: #f70; --warning-on-color: #fff; --admonition-background: #fafafa; --doc-icon-filter: invert(14.5%); --rem-base: 18; --black-color: #000; --white-color: #fff; --text-color: #02303A; --title-color: #02303A; --header-color: rgba(0, 0, 0, 0.85); --footer-color: #fff; --footer-other-text-color: #02303; --code-color: #f7f7f8; --code-text-color: rgba(0, 0, 0, 0.9); --code-link-color: #021274; --num-color: rgba(0, 0, 0, 0.8); --nav-color: #f8f8f7; --table-color: #f7f8f7; --box-shadow-color: rgba(0, 0, 0, .15); --top-header-color: #fff; --footer-white-color: #fff; --footer-text-color: #fff; --footer-form-color: #1BA8CB; --quoteblock-color: #7a2518; --menu-burger-color: #fff; --various-border-color: #e7e7e9; } } .cls-1 { fill: #02303a; } body.dark-theme { .cls-1 { fill: #fff; } } @media (prefers-color-scheme: dark) { .cls-1 { fill: #fff; } body.light-theme { .cls-1 { fill: #02303a; } } } /* Lato (normal, regular) */ @font-face { font-family: Lato; font-weight: 400; font-style: normal; src: url("https://assets.gradle.com/lato/fonts/lato-normal/lato-normal.woff2") format("woff2"), url("https://assets.gradle.com/lato/fonts/lato-normal/lato-normal.woff") format("woff"); } /* Lato (normal, italic) */ @font-face { font-display: swap; font-family: Lato; font-weight: 400; font-style: italic; src: url("https://assets.gradle.com/lato/fonts/lato-normal-italic/lato-normal-italic.woff2") format("woff2"), url("https://assets.gradle.com/lato/fonts/lato-normal-italic/lato-normal-italic.woff") format("woff"); } /* Lato (bold, regular) */ @font-face { font-display: swap; font-family: Lato; font-weight: 500; font-style: normal; src: url("https://assets.gradle.com/lato/fonts/lato-semibold/lato-semibold.woff2") format("woff2"), url("https://assets.gradle.com/lato/fonts/lato-semibold/lato-semibold.woff") format("woff"); } /* Lato (bold, regular) */ @font-face { font-display: swap; font-family: Lato; font-weight: 800; font-style: normal; src: url("https://assets.gradle.com/lato/fonts/lato-heavy/lato-heavy.woff2") format("woff2"), url("https://assets.gradle.com/lato/fonts/lato-heavy/lato-heavy.woff") format("woff"); } /* BEGIN asciidoc.css */ /*! normalize.css v2.1.2 | MIT License | git.io/normalize */ /* ========================================================================== HTML5 display definitions ========================================================================== */ /** Correct `block` display not defined in IE 8/9. */ article, aside, details, figcaption, figure, footer, header, hgroup, main, nav, section, summary { display: block; } /** Correct `inline-block` display not defined in IE 8/9. */ audio, canvas, video { display: inline-block; } /** Prevent modern browsers from displaying `audio` without controls. Remove excess height in iOS 5 devices. */ audio:not([controls]) { display: none; height: 0; } /** Address `[hidden]` styling not present in IE 8/9. Hide the `template` element in IE, Safari, and Firefox < 22. */ [hidden], template { display: none; } script { display: none !important; } /* ========================================================================== Base ========================================================================== */ /** 1. Set default font family to sans-serif. 2. Prevent iOS text size adjust after orientation change, without disabling user zoom. */ html { font-family: sans-serif; /* 1 */ -ms-text-size-adjust: 100%; /* 2 */ -webkit-text-size-adjust: 100%; /* 2 */ } /** Remove default margin. */ body { margin: 0; } /* ========================================================================== Links ========================================================================== */ /** Remove the gray background color from active links in IE 10. */ a { background: transparent; } /** Address `outline` inconsistency between Chrome and other browsers. */ a:focus { outline: thin dotted; } /** Improve readability when focused and also mouse hovered in all browsers. */ a:active, a:hover { outline: 0; } /* ========================================================================== Typography ========================================================================== */ /** Address variable `h1` font-size and margin within `section` and `article` contexts in Firefox 4+, Safari 5, and Chrome. */ h1 { font-size: 2em; margin: 0.67em 0; } /** Address styling not present in IE 8/9, Safari 5, and Chrome. */ abbr[title] { border-bottom: 1px dotted; } /** Address style set to `bolder` in Firefox 4+, Safari 5, and Chrome. */ b, strong { font-weight: bold; } /** Address styling not present in Safari 5 and Chrome. */ dfn { font-style: italic; } /** Address differences between Firefox and other browsers. */ hr { -moz-box-sizing: content-box; box-sizing: content-box; height: 0; } /** Address styling not present in IE 8/9. */ mark { background: #ff0; color: var(--black-color); } /** Correct font family set oddly in Safari 5 and Chrome. */ code, kbd, pre, samp { font-family: monospace, serif; font-size: 1em; } /** Improve readability of pre-formatted text in all browsers. */ pre { white-space: pre-wrap; } /** Set consistent quote types. */ q { quotes: "\201C""\201D""\2018""\2019"; } /** Address inconsistent and variable font size in all browsers. */ small { font-size: 80%; } /** Prevent `sub` and `sup` affecting `line-height` in all browsers. */ sub, sup { font-size: 75%; line-height: 0; position: relative; vertical-align: baseline; } sup { top: -0.5em; } sub { bottom: -0.25em; } /* ========================================================================== Embedded content ========================================================================== */ /** Remove border when inside `a` element in IE 8/9. */ img { border: 0; } /** Correct overflow displayed oddly in IE 9. */ svg:not(:root) { overflow: hidden; } /* ========================================================================== Figures ========================================================================== */ /** Address margin not present in IE 8/9 and Safari 5. */ figure { margin: 0; } /* ========================================================================== Forms ========================================================================== */ /** Define consistent border, margin, and padding. */ fieldset { border: 1px solid #c0c0c0; margin: 0 2px; padding: 0.35em 0.625em 0.75em; } /** 1. Correct `color` not being inherited in IE 8/9. 2. Remove padding so people aren't caught out if they zero out fieldsets. */ legend { border: 0; /* 1 */ padding: 0; /* 2 */ } /** 1. Correct font family not being inherited in all browsers. 2. Correct font size not being inherited in all browsers. 3. Address margins set differently in Firefox 4+, Safari 5, and Chrome. */ button, input, select, textarea { font-family: inherit; /* 1 */ font-size: 100%; /* 2 */ margin: 0; /* 3 */ } /** Address Firefox 4+ setting `line-height` on `input` using `!important` in the UA stylesheet. */ button, input { line-height: normal; } /** Address inconsistent `text-transform` inheritance for `button` and `select`. All other form control elements do not inherit `text-transform` values. Correct `button` style inheritance in Chrome, Safari 5+, and IE 8+. Correct `select` style inheritance in Firefox 4+ and Opera. */ button, select { text-transform: none; } /** 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio` and `video` controls. 2. Correct inability to style clickable `input` types in iOS. 3. Improve usability and consistency of cursor style between image-type `input` and others. */ button, html input[type="button"], input[type="reset"], input[type="submit"] { -webkit-appearance: button; /* 2 */ cursor: pointer; /* 3 */ } /** Re-set default cursor for disabled elements. */ button[disabled], html input[disabled] { cursor: default; } /** 1. Address box sizing set to `content-box` in IE 8/9. 2. Remove excess padding in IE 8/9. */ input[type="checkbox"], input[type="radio"] { box-sizing: border-box; /* 1 */ padding: 0; /* 2 */ } /** 1. Address `appearance` set to `searchfield` in Safari 5 and Chrome. 2. Address `box-sizing` set to `border-box` in Safari 5 and Chrome (include `-moz` to future-proof). */ input[type="search"] { -webkit-appearance: textfield; /* 1 */ -moz-box-sizing: content-box; -webkit-box-sizing: content-box; /* 2 */ box-sizing: content-box; } /** Remove inner padding and search cancel button in Safari 5 and Chrome on OS X. */ input[type="search"]::-webkit-search-cancel-button, input[type="search"]::-webkit-search-decoration { -webkit-appearance: none; } /** Remove inner padding and border in Firefox 4+. */ button::-moz-focus-inner, input::-moz-focus-inner { border: 0; padding: 0; } /** 1. Remove default vertical scrollbar in IE 8/9. 2. Improve readability and alignment in all browsers. */ textarea { overflow: auto; /* 1 */ vertical-align: top; /* 2 */ } /* ========================================================================== Tables ========================================================================== */ /** Remove most spacing between table cells. */ table { border-collapse: collapse; border-spacing: 0; } meta.foundation-mq-small { font-family: "only screen and (min-width: 768px)"; width: 768px; } meta.foundation-mq-medium { font-family: "only screen and (min-width:1280px)"; width: 1280px; } meta.foundation-mq-large { font-family: "only screen and (min-width:1440px)"; width: 1440px; } *, *:before, *:after { -moz-box-sizing: border-box; -webkit-box-sizing: border-box; box-sizing: border-box; } html, body { font-size: 100%; } body { background: var(--white-color); color: var(--num-color); padding: 0; margin: 0; font-family: "Noto Serif", "DejaVu Serif", serif; font-weight: normal; font-style: normal; line-height: 1; position: relative; cursor: auto; } a:hover { cursor: pointer; } img, object, embed { max-width: 100%; height: auto; } object, embed { height: 100%; } img { -ms-interpolation-mode: bicubic; } #map_canvas img, #map_canvas embed, #map_canvas object, .map_canvas img, .map_canvas embed, .map_canvas object { max-width: none !important; } .left { float: left !important; } .right { float: right !important; } .text-left { text-align: left !important; } .text-right { text-align: right !important; } .text-center { text-align: center !important; } .text-justify { text-align: justify !important; } .hide { display: none; } .antialiased { -webkit-font-smoothing: antialiased; } img { display: inline-block; vertical-align: middle; } textarea { height: auto; min-height: 50px; } select { width: 100%; } object, svg { display: inline-block; vertical-align: middle; } .center { margin-left: auto; margin-right: auto; } .spread { width: 100%; } p.lead, .paragraph.lead>p, #preamble>.sectionbody>.paragraph:first-of-type p { font-size: 1.21875em; line-height: 1.6; } .subheader, .admonitionblock td.content>.title, .audioblock>.title, .exampleblock>.title, .imageblock>.title, .listingblock>.title, .literalblock>.title, .stemblock>.title, .openblock>.title, .paragraph>.title, .quoteblock>.title, table.tableblock>.title, .verseblock>.title, .videoblock>.title, .dlist>.title, .olist>.title, .ulist>.title, .qlist>.title, .hdlist>.title { line-height: 1.45; color: #7a2518; font-weight: normal; margin-top: 0; margin-bottom: 0.25em; } /* Typography resets */ div, dl, dt, dd, ul, ol, li, h1, h2, h3, #toctitle, .sidebarblock>.content>.title, h4, h5, h6, pre, form, p, blockquote, th, td { margin: 0; padding: 0; direction: ltr; } /* Default Link Styles */ a { color: #2156a5; text-decoration: underline; line-height: inherit; } a:hover, a:focus { color: #1d4b8f; } a img { border: none; } /* Default paragraph styles */ p { font-family: inherit; font-weight: normal; font-size: 1em; line-height: 1.6; margin-bottom: 1.25em; text-rendering: optimizeLegibility; } p aside { font-size: 0.875em; line-height: 1.35; font-style: italic; } /* Default header styles */ h1, h2, h3, #toctitle, .sidebarblock>.content>.title, h4, h5, h6 { font-family: "Open Sans", "DejaVu Sans", sans-serif; font-weight: 300; font-style: normal; color: #ba3925; text-rendering: optimizeLegibility; margin-top: 1em; margin-bottom: 0.5em; line-height: 1.0125em; } h1 small, h2 small, h3 small, #toctitle small, .sidebarblock>.content>.title small, h4 small, h5 small, h6 small { font-size: 60%; color: #e99b8f; line-height: 0; } h1 { font-size: 2.125em; } h2 { font-size: 1.6875em; } h3, #toctitle, .sidebarblock>.content>.title { font-size: 1.375em; } h4 { font-size: 1.125em; } h5 { font-size: 1.125em; } h6 { font-size: 1em; } hr { border: solid #ddddd8; border-width: 1px 0 0; clear: both; margin: 1.25em 0 1.1875em; height: 0; } /* Helpful Typography Defaults */ em, i { font-style: italic; line-height: inherit; } strong, b { font-weight: bold; line-height: inherit; } small { font-size: 60%; line-height: inherit; } code { font-family: "Droid Sans Mono", "DejaVu Sans Mono", monospace; font-weight: normal; color: var(--code-text-color); } a code { color: var(--code-link-color); } /* Lists */ ul, ol, dl { font-size: 1em; line-height: 1.6; margin-bottom: 1.25em; list-style-position: outside; font-family: inherit; } ul, ol { margin-left: 1.5em; } ul.no-bullet, ol.no-bullet { margin-left: 1.5em; } /* Unordered Lists */ ul li ul, ul li ol { margin-left: 1.25em; margin-bottom: 0; font-size: 1em; /* Override nested font-size change */ } ul.square li ul, ul.circle li ul, ul.disc li ul { list-style: inherit; } ul.square { list-style-type: square; } ul.circle { list-style-type: circle; } ul.disc { list-style-type: disc; } ul.no-bullet { list-style: none; } /* Ordered Lists */ ol li ul, ol li ol { margin-left: 1.25em; margin-bottom: 0; } /* Definition Lists */ dl dt { margin-bottom: 0.3125em; font-weight: bold; } dl dd { margin-bottom: 1.25em; } /* Abbreviations */ abbr, acronym { text-transform: uppercase; font-size: 90%; color: var(--num-color); border-bottom: 1px dotted #dddddd; cursor: help; } abbr { text-transform: none; } /* Blockquotes */ blockquote { margin: 0 0 1.25em; padding: 0.5625em 1.25em 0 1.1875em; border-left: 1px solid #dddddd; } blockquote cite { display: block; font-size: 0.9375em; color: rgba(0, 0, 0, 0.6); } blockquote cite:before { content: "\2014 \0020"; } blockquote cite a, blockquote cite a:visited { color: rgba(0, 0, 0, 0.6); } blockquote, blockquote p { line-height: 1.6; color: var(--header-color); } /* Microformats */ .vcard { display: inline-block; margin: 0 0 1.25em 0; border: 1px solid #dddddd; padding: 0.625em 0.75em; } .vcard li { margin: 0; display: block; } .vcard .fn { font-weight: bold; font-size: 0.9375em; } .vevent .summary { font-weight: bold; } .vevent abbr { cursor: auto; text-decoration: none; font-weight: bold; border: none; padding: 0 0.0625em; } @media only screen and (min-width: 768px) { h1, h2, h3, #toctitle, .sidebarblock>.content>.title, h4, h5, h6 { line-height: 1.2; } h1 { font-size: 2.75em; } h2 { font-size: 2.3125em; } h3, #toctitle, .sidebarblock>.content>.title { font-size: 1.6875em; } h4 { font-size: 1.4375em; } } /* Tables */ table { background: var(--white-color); margin-bottom: 1.25em; border: solid 1px #dedede; } table thead, table tfoot { background: var(--table-color); font-weight: bold; } table thead tr th, table thead tr td, table tfoot tr th, table tfoot tr td { padding: 0.5em 0.625em 0.625em; font-size: inherit; color: var(--num-color); text-align: left; } table tr th, table tr td { padding: 0.5625em 0.625em; font-size: inherit; color: var(--num-color); } table tr.even, table tr.alt, table tr:nth-of-type(even) { background: var(--nav-color); } table thead tr th, table tfoot tr th, table tbody tr td, table tr td, table tfoot tr td { display: table-cell; line-height: 1.6; } body { tab-size: 4; } h1, h2, h3, #toctitle, .sidebarblock>.content>.title, h4, h5, h6 { line-height: 1.2; word-spacing: -0.05em; } h1 strong, h2 strong, h3 strong, #toctitle strong, .sidebarblock>.content>.title strong, h4 strong, h5 strong, h6 strong { font-weight: 400; } .clearfix:before, .clearfix:after, .float-group:before, .float-group:after { content: " "; display: table; } .clearfix:after, .float-group:after { clear: both; } *:not(pre)>code { font-size: 0.9375em; font-style: normal !important; letter-spacing: 0; padding: 0.1em 0.5ex; word-spacing: -0.15em; background-color: var(--code-color); -webkit-border-radius: 4px; border-radius: 4px; line-height: 1.45; text-rendering: optimizeSpeed; word-wrap: break-word; } *:not(pre)>code.nobreak { word-wrap: normal; } *:not(pre)>code.nowrap { white-space: nowrap; } pre, pre>code { line-height: 1.45; color: var(--code-text-color); font-family: "Droid Sans Mono", "DejaVu Sans Mono", "Monospace", monospace; font-weight: normal; text-rendering: optimizeSpeed; } em em { font-style: normal; } strong strong { font-weight: normal; } .keyseq { color: rgba(51, 51, 51, 0.8); } kbd { font-family: "Droid Sans Mono", "DejaVu Sans Mono", monospace; display: inline-block; color: var(--num-color); font-size: 0.65em; line-height: 1.45; background-color: #f7f7f7; border: 1px solid #ccc; -webkit-border-radius: 3px; border-radius: 3px; -webkit-box-shadow: 0 1px 0 rgba(0, 0, 0, 0.2), 0 0 0 0.1em white inset; box-shadow: 0 1px 0 rgba(0, 0, 0, 0.2), 0 0 0 0.1em white inset; margin: 0 0.15em; padding: 0.2em 0.5em; vertical-align: middle; position: relative; top: -0.1em; white-space: nowrap; } .keyseq kbd:first-child { margin-left: 0; } .keyseq kbd:last-child { margin-right: 0; } .menuseq, .menu { color: var(--num-color); } b.button:before, b.button:after { position: relative; top: -1px; font-weight: normal; } b.button:before { content: "["; padding: 0 3px 0 2px; } b.button:after { content: "]"; padding: 0 2px 0 3px; } p a>code:hover { color: var(--code-text-color); } #header, #content, #footnotes, #footer { width: 100%; margin-left: auto; margin-right: auto; margin-top: 0; margin-bottom: 0; max-width: 62.5em; *zoom: 1; position: relative; padding-left: 0.9375em; padding-right: 0.9375em; } #header:before, #header:after, #content:before, #content:after, #footnotes:before, #footnotes:after, #footer:before, #footer:after { content: " "; display: table; } #header:after, #content:after, #footnotes:after, #footer:after { clear: both; } #content { margin-top: 1.25em; } #content:before { content: none; } #header>h1:first-child { color: var(--header-color); margin-top: 2.25rem; margin-bottom: 0; } #header>h1:first-child+#toc { margin-top: 8px; border-top: 1px solid #ddddd8; } #header>h1:only-child, body.toc2 #header>h1:nth-last-child(2) { border-bottom: 1px solid #ddddd8; padding-bottom: 8px; } #header .details { border-bottom: 1px solid #ddddd8; line-height: 1.45; padding-top: 0.25em; padding-bottom: 0.25em; padding-left: 0.25em; color: rgba(0, 0, 0, 0.6); display: -ms-flexbox; display: -webkit-flex; display: flex; -ms-flex-flow: row wrap; -webkit-flex-flow: row wrap; flex-flow: row wrap; } #header .details span:first-child { margin-left: -0.125em; } #header .details span.email a { color: var(--header-color); } #header .details br { display: none; } #header .details br+span:before { content: "\00a0\2013\00a0"; } #header .details br+span.author:before { content: "\00a0\22c5\00a0"; color: var(--header-color); } #header .details br+span#revremark:before { content: "\00a0|\00a0"; } #header #revnumber { text-transform: capitalize; } #header #revnumber:after { content: "\00a0"; } #content>h1:first-child:not([class]) { color: var(--header-color); border-bottom: 1px solid #ddddd8; padding-bottom: 8px; margin-top: 0; padding-top: 1rem; margin-bottom: 1.25rem; } #toc { border-bottom: 1px solid #efefed; padding-bottom: 0.5em; } #toc>ul { margin-left: 0.125em; } #toc ul.sectlevel0>li>a { font-style: italic; } #toc ul.sectlevel0 ul.sectlevel1 { margin: 0.5em 0; } #toc ul { font-family: "Open Sans", "DejaVu Sans", sans-serif; list-style-type: none; } #toc li { line-height: 1.3334; margin-top: 0.3334em; } #toc a { text-decoration: none; } #toc a:active { text-decoration: underline; } #toctitle { color: #7a2518; font-size: 1.2em; } @media only screen and (min-width: 768px) { #toctitle { font-size: 1.375em; } body.toc2 { padding-left: 15em; padding-right: 0; } #toc.toc2 { margin-top: 0 !important; background-color: var(--nav-color); position: fixed; width: 15em; left: 0; top: 0; border-right: 1px solid #efefed; border-top-width: 0 !important; border-bottom-width: 0 !important; z-index: 1000; padding: 1.25em 1em; height: 100%; overflow: auto; } #toc.toc2 #toctitle { margin-top: 0; margin-bottom: 0.8rem; font-size: 1.2em; } #toc.toc2>ul { font-size: 0.9em; margin-bottom: 0; } #toc.toc2 ul ul { margin-left: 0; padding-left: 1em; } #toc.toc2 ul.sectlevel0 ul.sectlevel1 { padding-left: 0; margin-top: 0.5em; margin-bottom: 0.5em; } body.toc2.toc-right { padding-left: 0; padding-right: 15em; } body.toc2.toc-right #toc.toc2 { border-right-width: 0; border-left: 1px solid #efefed; left: auto; right: 0; } } @media only screen and (min-width: 1280px) { body.toc2 { padding-left: 20em; padding-right: 0; } #toc.toc2 { width: 20em; } #toc.toc2 #toctitle { font-size: 1.375em; } #toc.toc2>ul { font-size: 0.95em; } #toc.toc2 ul ul { padding-left: 1.25em; } body.toc2.toc-right { padding-left: 0; padding-right: 20em; } } #content #toc { border-style: solid; border-width: 1px; border-color: #e0e0dc; margin-bottom: 1.25em; padding: 1.25em; background: var(--nav-color); -webkit-border-radius: 4px; border-radius: 4px; } #content #toc> :first-child { margin-top: 0; } #content #toc> :last-child { margin-bottom: 0; } #footer { max-width: 100%; background-color: var(--num-color); padding: 1.25em; } #footer-text { color: rgba(255, 255, 255, 0.8); line-height: 1.44; } .sect1 { padding-bottom: 0.625em; } @media only screen and (min-width: 768px) { .sect1 { padding-bottom: 1.25em; } } .sect1+.sect1 { border-top: 1px solid #efefed; } #content h1>a.anchor, h2>a.anchor, h3>a.anchor, #toctitle>a.anchor, .sidebarblock>.content>.title>a.anchor, h4>a.anchor, h5>a.anchor, h6>a.anchor { position: absolute; z-index: 1001; width: 1.5ex; margin-left: -1.5ex; display: block; text-decoration: none !important; visibility: hidden; text-align: center; font-weight: normal; } #content h1>a.anchor:before, h2>a.anchor:before, h3>a.anchor:before, #toctitle>a.anchor:before, .sidebarblock>.content>.title>a.anchor:before, h4>a.anchor:before, h5>a.anchor:before, h6>a.anchor:before { content: "\00A7"; font-size: 0.85em; display: block; padding-top: 0.1em; } #content h1:hover>a.anchor, #content h1>a.anchor:hover, h2:hover>a.anchor, h2>a.anchor:hover, h3:hover>a.anchor, #toctitle:hover>a.anchor, .sidebarblock>.content>.title:hover>a.anchor, h3>a.anchor:hover, #toctitle>a.anchor:hover, .sidebarblock>.content>.title>a.anchor:hover, h4:hover>a.anchor, h4>a.anchor:hover, h5:hover>a.anchor, h5>a.anchor:hover, h6:hover>a.anchor, h6>a.anchor:hover { visibility: visible; } #content h1>a.link, h2>a.link, h3>a.link, #toctitle>a.link, .sidebarblock>.content>.title>a.link, h4>a.link, h5>a.link, h6>a.link { color: #ba3925; text-decoration: none; } #content h1>a.link:hover, h2>a.link:hover, h3>a.link:hover, #toctitle>a.link:hover, .sidebarblock>.content>.title>a.link:hover, h4>a.link:hover, h5>a.link:hover, h6>a.link:hover { color: #a53221; } .audioblock, .imageblock, .literalblock, .listingblock, .stemblock, .videoblock { margin-bottom: 1.25em; } .admonitionblock td.content>.title, .audioblock>.title, .exampleblock>.title, .imageblock>.title, .listingblock>.title, .literalblock>.title, .stemblock>.title, .openblock>.title, .paragraph>.title, .quoteblock>.title, table.tableblock>.title, .verseblock>.title, .videoblock>.title, .dlist>.title, .olist>.title, .ulist>.title, .qlist>.title, .hdlist>.title { text-rendering: optimizeLegibility; text-align: left; font-family: "Noto Serif", "DejaVu Serif", serif; font-size: 1rem; font-style: italic; } table.tableblock>caption.title { white-space: nowrap; overflow: visible; max-width: 0; } .paragraph.lead>p, #preamble>.sectionbody>.paragraph:first-of-type p { color: var(--header-color); } table.tableblock #preamble>.sectionbody>.paragraph:first-of-type p { font-size: inherit; } /* Custom SVG logos coloring */ path { fill: #02303A; } body.dark-theme { path { fill: white; } } @media (prefers-color-scheme: dark) { path { fill: white; } body.light-theme { path { fill: #02303A; } } } /* Custom scroll bar */ /* Works on Firefox */ .docs-navigation { scrollbar-width: auto; scrollbar-color: #686868 #e7e7e9; } /* Works on Chrome, Edge, and Safari */ .docs-navigation::-webkit-scrollbar { width: 12px; } .docs-navigation::-webkit-scrollbar-track { background: #e7e7e9; } .docs-navigation::-webkit-scrollbar-thumb { background-color: #686868; border-radius: 20px; border: 3px #686868; } body.dark-theme { /* Works on Firefox */ * { scrollbar-width: auto; scrollbar-color: #686868 #242526; } /* Works on Chrome, Edge, and Safari */ *::-webkit-scrollbar { width: auto; } *::-webkit-scrollbar-track { background: #242526; } *::-webkit-scrollbar-thumb { background-color: #686868; border-radius: 20px; border: 3px #686868; } } @media (prefers-color-scheme: dark) { /* Works on Firefox */ * { scrollbar-width: auto; scrollbar-color: #686868 #242526; } /* Works on Chrome, Edge, and Safari */ *::-webkit-scrollbar { width: auto; } *::-webkit-scrollbar-track { background: #242526; } *::-webkit-scrollbar-thumb { background-color: #686868; border-radius: 20px; border: 3px #686868; } body.light-theme { .docs-navigation { scrollbar-width: auto; scrollbar-color: #686868 #e7e7e9; } /* Works on Chrome, Edge, and Safari */ .docs-navigation::-webkit-scrollbar { width: 12px; } .docs-navigation::-webkit-scrollbar-track { background: #e7e7e9; } .docs-navigation::-webkit-scrollbar-thumb { background-color: #686868; border-radius: 20px; border: 3px #686868; } } } /* Custom Admonition Blocks - Icons from https://github.com/primer/octicons */ .admonitionblock td div:last-of-type p { margin-bottom: 0em !important; } .admonitionblock { margin: 1.4rem 0 0 } .admonitionblock i { font-family: inherit; } .admonitionblock i.fa { background: no-repeat 50%/1em 1em; display: inline-block; filter: var(--doc-icon-filter); font-style: normal; height: 1em; -webkit-hyphens: none; hyphens: none; vertical-align: -.125em; width: 1em } .admonitionblock p, .admonitionblock td.content { font-size: 1rem; } .admonitionblock td.content>.title+*, .admonitionblock td.content>:not(.title):first-child { margin-top: 0 } .admonitionblock pre { font-size: calc(15/var(--rem-base)*1rem) } .admonitionblock>table { position: relative; table-layout: fixed; border: none; width: 100% } .admonitionblock td.content { word-wrap: anywhere; background: var(--admonition-background); padding: 1rem 1rem 1rem 1rem; width: 100%; border-radius: 4px; } .admonitionblock td.icon { background: linear-gradient(90deg, rgba(0, 0, 0, .2) 0, rgba(0, 0, 0, .2)) no-repeat 0 /2.075em 100%; border-radius: .5em; font-size: calc(15/var(--rem-base)*1rem); left: 0; line-height: 1; padding: .25em .075em; position: absolute; top: 0; transform: translate(-.5rem, -50%) } .admonitionblock td.icon i { align-items: center; background-position-x: .5em; display: inline-flex; filter: invert(100%); padding-left: 2em; vertical-align: initial; width: auto } .admonitionblock td.icon i::after { content: attr(title); filter: invert(100%); font-style: normal; font-weight: bold; margin: -.05em; padding: 0 .5em; text-transform: uppercase } .admonitionblock.caution td.icon { background-color: var(--caution-color); color: var(--caution-on-color) } .admonitionblock.caution td.icon i { background-image: url(./img/octicons-16.svg#view-flame) } .admonitionblock.important td.icon { background-color: var(--important-color); color: var(--important-on-color) } .admonitionblock.important td.icon i { background-image: url(./img/octicons-16.svg#view-stop) } .admonitionblock.note td.icon { background-color: var(--note-color); color: var(--note-on-color) } .admonitionblock.note td.icon i { background-image: url(./img/octicons-16.svg#view-info) } .admonitionblock.tip td.icon { background-color: var(--tip-color); color: var(--tip-on-color) } .admonitionblock.tip td.icon i { background-image: url(./img/octicons-16.svg#view-light-bulb) } .admonitionblock.warning td.icon { background-color: var(--warning-color); color: var(--warning-on-color) } .admonitionblock.warning td.icon i { background-image: url(./img/octicons-16.svg#view-alert) } /* Custom collapsible block */ details summary { width: 100%; padding: 1rem 0; border-top: 1px solid gray; position: relative; cursor: pointer; list-style: none; } details summary:after { content: "+"; color: var(--black-color); position: absolute; font-size: 1.75rem; line-height: 0; margin-top: 0.3rem; right: 0; font-weight: 400; transform-origin: center; transition: 200ms linear; } details[open] summary:after { transform: rotate(45deg); font-size: 2rem; } details summary { outline: 0; } details p { font-size: 0.95rem; margin: 0 0 1rem; padding-top: 1rem; } .exampleblock>.content { border-style: solid; border-width: 1px; border-color: #e6e6e6; margin-bottom: 1.25em; padding: 1.25em; background: var(--white-color); -webkit-border-radius: 4px; border-radius: 4px; } .exampleblock>.content> :first-child { margin-top: 0; } .exampleblock>.content> :last-child { margin-bottom: 0; } .sidebarblock { border-style: solid; border-width: 1px; border-color: #e0e0dc; margin-bottom: 1.25em; padding: 1.25em; background: var(--nav-color); -webkit-border-radius: 4px; border-radius: 4px; } .sidebarblock> :first-child { margin-top: 0; } .sidebarblock> :last-child { margin-bottom: 0; } .sidebarblock>.content>.title { color: #7a2518; margin-top: 0; text-align: center; } .exampleblock>.content> :last-child> :last-child, .exampleblock>.content .olist>ol>li:last-child> :last-child, .exampleblock>.content .ulist>ul>li:last-child> :last-child, .exampleblock>.content .qlist>ol>li:last-child> :last-child, .sidebarblock>.content> :last-child> :last-child, .sidebarblock>.content .olist>ol>li:last-child> :last-child, .sidebarblock>.content .ulist>ul>li:last-child> :last-child, .sidebarblock>.content .qlist>ol>li:last-child> :last-child { margin-bottom: 0; } .literalblock pre, .listingblock pre:not(.highlight), .listingblock pre[class="highlight"], .listingblock pre[class^="highlight "], .listingblock pre.CodeRay, .listingblock pre.prettyprint { background: var(--code-color); } .sidebarblock .literalblock pre, .sidebarblock .listingblock pre:not(.highlight), .sidebarblock .listingblock pre[class="highlight"], .sidebarblock .listingblock pre[class^="highlight "], .sidebarblock .listingblock pre.CodeRay, .sidebarblock .listingblock pre.prettyprint { background: #f2f1f1; } .literalblock pre, .literalblock pre[class], .listingblock pre, .listingblock pre[class] { -webkit-border-radius: 4px; border-radius: 4px; word-wrap: break-word; padding: 1em; font-size: 0.8125em; } .literalblock pre.nowrap, .literalblock pre[class].nowrap, .listingblock pre.nowrap, .listingblock pre[class].nowrap { overflow-x: auto; white-space: pre; word-wrap: normal; } @media only screen and (min-width: 768px) { .literalblock pre, .literalblock pre[class], .listingblock pre, .listingblock pre[class] { font-size: 0.90625em; } } @media only screen and (min-width: 1280px) { .literalblock pre, .literalblock pre[class], .listingblock pre, .listingblock pre[class] { font-size: 1em; } } .literalblock.output pre { color: var(--code-color); background-color: var(--code-text-color); } .listingblock pre.highlightjs { padding: 0; } .listingblock pre.highlightjs>code { padding: 1em; -webkit-border-radius: 4px; border-radius: 4px; } .listingblock pre.prettyprint { border-width: 0; } .listingblock>.content { position: relative; } .listingblock code[data-lang]:before { display: none; content: attr(data-lang); position: absolute; font-size: 0.75em; top: 0.425rem; right: 0.5rem; line-height: 1; text-transform: uppercase; color: #999; } .listingblock:hover code[data-lang]:before { display: block; } .listingblock.terminal pre .command:before { content: attr(data-prompt); padding-right: 0.5em; color: #999; } .listingblock.terminal pre .command:not([data-prompt]):before { content: "$"; } table.pyhltable { border-collapse: separate; border: 0; margin-bottom: 0; background: none; } table.pyhltable td { vertical-align: top; padding-top: 0; padding-bottom: 0; line-height: 1.45; } table.pyhltable td.code { padding-left: .75em; padding-right: 0; } pre.pygments .lineno, table.pyhltable td:not(.code) { color: #999; padding-left: 0; padding-right: .5em; border-right: 1px solid #ddddd8; } pre.pygments .lineno { display: inline-block; margin-right: .25em; } table.pyhltable .linenodiv { background: none !important; padding-right: 0 !important; } .quoteblock { margin: 0 1em 1.25em 1.5em; display: table; } .quoteblock>.title { margin-left: -1.5em; margin-bottom: 0.75em; } .quoteblock blockquote, .quoteblock blockquote p { color: var(--header-color); font-size: 1.15rem; line-height: 1.75; word-spacing: 0.1em; letter-spacing: 0; font-style: italic; text-align: justify; } .quoteblock blockquote { margin: 0; padding: 0; border: 0; } .quoteblock blockquote:before { content: "\201c"; float: left; font-size: 2.75em; font-weight: bold; line-height: 0.6em; margin-left: -0.6em; color: var(--quoteblock-color); text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1); } .quoteblock blockquote>.paragraph:last-child p { margin-bottom: 0; } .quoteblock .attribution { margin-top: 0.5em; margin-right: 0.5ex; text-align: right; } .quoteblock .quoteblock { margin-left: 0; margin-right: 0; padding: 0.5em 0; border-left: 3px solid rgba(0, 0, 0, 0.6); } .quoteblock .quoteblock blockquote { padding: 0 0 0 0.75em; } .quoteblock .quoteblock blockquote:before { display: none; } .verseblock { margin: 0 1em 1.25em 1em; } .verseblock pre { font-family: "Open Sans", "DejaVu Sans", sans; font-size: 1.15rem; color: var(--header-color); font-weight: 300; text-rendering: optimizeLegibility; } .verseblock pre strong { font-weight: 400; } .verseblock .attribution { margin-top: 1.25rem; margin-left: 0.5ex; } .quoteblock .attribution, .verseblock .attribution { font-size: 0.9375em; line-height: 1.45; font-style: italic; } .quoteblock .attribution br, .verseblock .attribution br { display: none; } .quoteblock .attribution cite, .verseblock .attribution cite { display: block; letter-spacing: -0.025em; color: rgba(0, 0, 0, 0.6); } .quoteblock.abstract { margin: 0 0 1.25em 0; display: block; } .quoteblock.abstract blockquote, .quoteblock.abstract blockquote p { text-align: left; word-spacing: 0; } .quoteblock.abstract blockquote:before, .quoteblock.abstract blockquote p:first-of-type:before { display: none; } table.tableblock { max-width: 100%; border-collapse: separate; } table.tableblock td>.paragraph:last-child p>p:last-child, table.tableblock th>p:last-child, table.tableblock td>p:last-child { margin-bottom: 0; } table.tableblock, th.tableblock, td.tableblock { border: 0 solid #dedede; } table.grid-all th.tableblock, table.grid-all td.tableblock { border-width: 0 1px 1px 0; } table.grid-all tfoot>tr>th.tableblock, table.grid-all tfoot>tr>td.tableblock { border-width: 1px 1px 0 0; } table.grid-cols th.tableblock, table.grid-cols td.tableblock { border-width: 0 1px 0 0; } table.grid-all *>tr>.tableblock:last-child, table.grid-cols *>tr>.tableblock:last-child { border-right-width: 0; } table.grid-rows th.tableblock, table.grid-rows td.tableblock { border-width: 0 0 1px 0; } table.grid-all tbody>tr:last-child>th.tableblock, table.grid-all tbody>tr:last-child>td.tableblock, table.grid-all thead:last-child>tr>th.tableblock, table.grid-rows tbody>tr:last-child>th.tableblock, table.grid-rows tbody>tr:last-child>td.tableblock, table.grid-rows thead:last-child>tr>th.tableblock { border-bottom-width: 0; } table.grid-rows tfoot>tr>th.tableblock, table.grid-rows tfoot>tr>td.tableblock { border-width: 1px 0 0 0; } table.frame-all { border-width: 1px; } table.frame-sides { border-width: 0 1px; } table.frame-topbot { border-width: 1px 0; } th.halign-left, td.halign-left { text-align: left; } th.halign-right, td.halign-right { text-align: right; } th.halign-center, td.halign-center { text-align: center; } th.valign-top, td.valign-top { vertical-align: top; } th.valign-bottom, td.valign-bottom { vertical-align: bottom; } th.valign-middle, td.valign-middle { vertical-align: middle; } table thead th, table tfoot th { font-weight: bold; } tbody tr th { display: table-cell; line-height: 1.6; background: var(--table-color); } tbody tr th, tbody tr th p, tfoot tr th, tfoot tr th p { color: var(--num-color); font-weight: bold; } p.tableblock>code:only-child { background: none; padding: 0; } p.tableblock { font-size: 1em; } td>div.verse { white-space: pre; } ol { margin-left: 1.75em; } ul li ol { margin-left: 1.5em; } dl dd { margin-left: 1.125em; } dl dd:last-child, dl dd:last-child> :last-child { margin-bottom: 0; } ol>li p, ul>li p, ul dd, ol dd, .olist .olist, .ulist .ulist, .ulist .olist, .olist .ulist { margin-bottom: 0.625em; } ul.unstyled, ol.unnumbered, ul.checklist, ul.none { list-style-type: none; } ul.unstyled, ol.unnumbered, ul.checklist { margin-left: 0.625em; } ul.checklist li>p:first-child>.fa-square-o:first-child, ul.checklist li>p:first-child>.fa-check-square-o:first-child { width: 1em; font-size: 0.85em; } ul.checklist li>p:first-child>input[type="checkbox"]:first-child { width: 1em; position: relative; top: 1px; } ul.inline { margin: 0 auto 0.625em auto; margin-left: -1.375em; margin-right: 0; padding: 0; list-style: none; overflow: hidden; } ul.inline>li { list-style: none; float: left; margin-left: 1.375em; display: block; } ul.inline>li>* { display: block; } .unstyled dl dt { font-weight: normal; font-style: normal; } ol.arabic { list-style-type: decimal; } ol.decimal { list-style-type: decimal-leading-zero; } ol.loweralpha { list-style-type: lower-alpha; } ol.upperalpha { list-style-type: upper-alpha; } ol.lowerroman { list-style-type: lower-roman; } ol.upperroman { list-style-type: upper-roman; } ol.lowergreek { list-style-type: lower-greek; } .hdlist>table, .colist>table { border: 0; background: none; } .hdlist>table>tbody>tr, .colist>table>tbody>tr { background: none; } td.hdlist1, td.hdlist2 { vertical-align: top; padding: 0 0.625em; } td.hdlist1 { font-weight: bold; padding-bottom: 1.25em; } .literalblock+.colist { margin-top: -0.5em; } .colist>table tr>td:first-of-type { padding: 0 0.75em; line-height: 1; } .colist>table tr>td:first-of-type img { max-width: initial; } .colist>table tr>td:last-of-type { padding: 0.25em 0; } .thumb, .th { line-height: 0; display: inline-block; border: solid 4px var(--white-color); -webkit-box-shadow: 0 0 0 1px #dddddd; box-shadow: 0 0 0 1px #dddddd; } .imageblock.left, .imageblock[style*="float: left"] { margin: 0.25em 0.625em 1.25em 0; } .imageblock.right, .imageblock[style*="float: right"] { margin: 0.25em 0 1.25em 0.625em; } .imageblock>.title { margin-bottom: 0; } .imageblock.thumb, .imageblock.th { border-width: 6px; } .imageblock.thumb>.title, .imageblock.th>.title { padding: 0 0.125em; } .image.left, .image.right { margin-top: 0.25em; margin-bottom: 0.25em; display: inline-block; line-height: 0; } .image.left { margin-right: 0.625em; } .image.right { margin-left: 0.625em; } a.image { text-decoration: none; display: inline-block; } a.image object { pointer-events: none; } sup.footnote, sup.footnoteref { font-size: 0.875em; position: static; vertical-align: super; } sup.footnote a, sup.footnoteref a { text-decoration: none; } sup.footnote a:active, sup.footnoteref a:active { text-decoration: underline; } #footnotes { padding-top: 0.75em; padding-bottom: 0.75em; margin-bottom: 0.625em; } #footnotes hr { width: 20%; min-width: 6.25em; margin: -0.25em 0 0.75em 0; border-width: 1px 0 0 0; } #footnotes .footnote { padding: 0 0.375em 0 0.225em; line-height: 1.3334; font-size: 0.875em; margin-left: 1.2em; text-indent: -1.05em; margin-bottom: 0.2em; } #footnotes .footnote a:first-of-type { font-weight: bold; text-decoration: none; } #footnotes .footnote:last-of-type { margin-bottom: 0; } #content #footnotes { margin-top: -0.625em; margin-bottom: 0; padding: 0.75em 0; } .gist .file-data>table { border: 0; background: var(--white-color); width: 100%; margin-bottom: 0; } .gist .file-data>table td.line-data { width: 99%; } div.unbreakable { page-break-inside: avoid; } .big { font-size: larger; } .small { font-size: smaller; } .underline { text-decoration: underline; } .overline { text-decoration: overline; } .line-through { text-decoration: line-through; } .green { color: #006000; } .red { color: #bf0000; } .yellow { color: #bfbf00; } span.icon>.fa { cursor: default; } .conum[data-value] { display: inline-block; color: var(--white-color) !important; background-color: var(--num-color); -webkit-border-radius: 100px; border-radius: 100px; text-align: center; font-size: 0.75em; width: 1.67em; height: 1.67em; line-height: 1.67em; font-family: "Open Sans", "DejaVu Sans", sans-serif; font-style: normal; font-weight: bold; } .conum[data-value] * { color: var(--white-color) !important; } .conum[data-value]+b { display: none; } .conum[data-value]:after { content: attr(data-value); } pre .conum[data-value] { position: relative; top: -0.125em; } b.conum * { color: inherit !important; } .conum:not([data-value]):empty { display: none; } dt, th.tableblock, td.content, div.footnote { text-rendering: optimizeLegibility; } h1, h2, p, td.content, span.alt { letter-spacing: -0.01em; } p strong, td.content strong, div.footnote strong { letter-spacing: -0.005em; } p, blockquote, dt, td.content, span.alt { font-size: 1.0625rem; } p { margin-bottom: 1.25rem; } .sidebarblock p, .sidebarblock dt, .sidebarblock td.content, p.tableblock { font-size: 1em; } .exampleblock>.content { background-color: #fffef7; border-color: #e0e0dc; -webkit-box-shadow: 0 1px 4px #e0e0dc; box-shadow: 0 1px 4px #e0e0dc; } .print-only { display: none !important; } @media print { @page { margin: 1.25cm 0.75cm; } * { -webkit-box-shadow: none !important; box-shadow: none !important; text-shadow: none !important; } a { color: inherit !important; text-decoration: underline !important; } a.bare, a[href^="#"], a[href^="mailto:"] { text-decoration: none !important; } a[href^="http:"]:not(.bare):after, a[href^="https:"]:not(.bare):after { content: "(" attr(href) ")"; display: inline-block; font-size: 0.875em; padding-left: 0.25em; } abbr[title]:after { content: " (" attr(title) ")"; } pre, blockquote, tr, img, object, svg { page-break-inside: avoid; } thead { display: table-header-group; } svg { max-width: 100%; } p, blockquote, dt, td.content { font-size: 1em; orphans: 3; widows: 3; } h2, h3, #toctitle, .sidebarblock>.content>.title, #toctitle, .sidebarblock>.content>.title { page-break-after: avoid; } #toc, .sidebarblock, .exampleblock>.content { background: none !important; } #toc { border-bottom: 1px solid #ddddd8 !important; padding-bottom: 0 !important; } .sect1 { padding-bottom: 0 !important; } .sect1+.sect1 { border: 0 !important; } #header>h1:first-child { margin-top: 1.25rem; } body.book #header { text-align: center; } body.book #header>h1:first-child { border: 0 !important; margin: 2.5em 0 1em 0; } body.book #header .details { border: 0 !important; display: block; padding: 0 !important; } body.book #header .details span:first-child { margin-left: 0 !important; } body.book #header .details br { display: block; } body.book #header .details br+span:before { content: none !important; } body.book #toc { border: 0 !important; text-align: left !important; padding: 0 !important; margin: 0 !important; } body.book #toc, body.book #preamble, body.book h1.sect0, body.book .sect1>h2 { page-break-before: always; } .listingblock code[data-lang]:before { display: block; } #footer { background: none !important; padding: 0 0.9375em; } #footer-text { color: rgba(0, 0, 0, 0.6) !important; font-size: 0.9em; } .hide-on-print { display: none !important; } .print-only { display: block !important; } .hide-for-print { display: none !important; } .show-for-print { display: inherit !important; } } /* END asciidoc.css */ html, body { margin: 0; padding: 0; } html { font-size: 16px; font-weight: 400; line-height: 1.5; } body { color: var(--text-color); background-color: var(--white-color); font-family: "Lato", "Helvetica Neue", Arial, sans-serif; line-height: 1.5; -webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; } /* Links */ a { color: #1DA2BD; text-decoration: none; } a:hover, a:focus { text-decoration: underline; } #content a[href^='../dsl/'], #content a[href^='../kotlin-dsl/'], #content a[href^='../javadoc/'] { font-family: 'Inconsolata', monospace; font-style: normal; border-bottom: 1px dotted rgba(29, 162, 189, 0.5); padding: 0 1px; } #content a[href^='../dsl/']:hover, #content a[href^='../dsl/']:focus, #content a[href^='../kotlin-dsl/']:hover, #content a[href^='../kotlin-dsl/']:focus, #content a[href^='../javadoc/']:hover, #content a[href^='../javadoc/']:focus { text-decoration: none; } /* Copy */ p { font-size: 1rem; } pre, pre>code, code { font-family: 'Inconsolata', monospace; } h1, h2, h3, h4, h5, h6, #toctitle, .sidebarblock>.content>.title { font-family: inherit; font-weight: 500; color: inherit; } h1 { font-size: 2rem; } h2 { font-size: 1.5rem; } h3 { font-size: 1.125rem; } h4 { font-size: 1.0625rem; } h5, h6 { font-size: 1rem; } b, strong { font-weight: 500; } dl { margin: 0 0 1.25rem 1.5rem; } .dlist dt code { color: var(--text-color); font-size: 1em; font-weight: bold; } .dlist p { margin-bottom: 0.625rem; } .sr-only { border: 0; clip: rect(0, 0, 0, 0); height: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; width: 1px; } /* Layout */ .main-content>.appendix, .main-content>.book, .main-content>.chapter, .main-content>.footer { background-color: var(--white-color); border-radius: 5px; max-width: 45rem; padding: 1.5rem; } @media screen and (max-width: 45em) { .footer { max-width: 100%; } .main-content>.appendix, .main-content>.book, .main-content>.chapter { margin-top: 0; margin-bottom: 0; } } /* Override asciidoc styles */ #header { position: static; } #header, #content { padding: 0; } #header .details { /* TODO: Pretty sure there's a way to avoid Asciidoc generating details */ display: none; } p { color: var(--text-color); } h1, h2, p, p strong, td.content, td.content strong, div.footnote strong, span.alt { letter-spacing: normal; } .subheader, .admonitionblock td.content>.title, .audioblock>.title, .exampleblock>.title, .imageblock>.title, .listingblock>.title, .literalblock>.title, .stemblock>.title, .openblock>.title, .paragraph>.title, .quoteblock>.title, table.tableblock>.title, .verseblock>.title, .videoblock>.title, .dlist>.title, .olist>.title, .ulist>.title, .qlist>.title, .hdlist>.title { color: inherit; font-family: inherit; } .listingblock .title, .listingblock .title code { font-style: normal; font-weight: bold; } .imageblock, .videoblock { padding: 0.25em; } p.lead, .paragraph.lead>p, #preamble>.sectionbody>.paragraph:first-of-type p { font-size: 1.0625rem; } .paragraph.lead>p, #preamble>.sectionbody>.paragraph:first-of-type p { color: inherit; } .sect1 { padding-bottom: 0; } .sect1+.sect1 { border: 0 none; } .verseblock pre { font-family: "Lato", Arial, sans-serif; } td.hdlist1 { padding-bottom: 0.625rem; } td.hdlist2 p { margin-bottom: 0.625rem; } body.book #header>h1 { border: 0; } #header>h1:first-child { margin-top: 0; } #content a.link { color: var(--title-color); } .highlight .com { color: #777; } .listingblock pre.highlightjs>code { overflow-x: auto; } .listingblock pre.highlight { overflow-x: auto; } .listingblock pre.highlight>code { white-space: pre; } .conum[data-value] { font-family: "Lato", Arial, sans-serif; } .colist>table tr>td:first-of-type { padding-top: 0.25em; padding-bottom: 0.25em; line-height: 1.4; vertical-align: baseline; } /* * Samples */ .exampleblock>.content { background-color: inherit; border: 0 none; box-shadow: none; padding: 0; padding-bottom: 0.7rem; margin-bottom: 0; } .exampleblock>.content .title { background-color: var(--code-color); border-top: 1px solid #ccc; font-family: 'Inconsolata', monospace; margin: 0; padding: 1em 1em 0; } .exampleblock>.title>a { text-decoration: none; color: var(--num-color); } .exampleblock .listingblock { margin: 0; } /* * Ensure that blocks of code do not wrap by applying the behavior of `[listing%nowrap]` by default. * * These styles are copied from a CSS ruleset in asciidoctor.css that has the same group of * selectors except that they end with `.nowrap`. */ .openblock .content { background: var(--admonition-background); margin-bottom: 1.25em; padding: 1em 1em 0em 1em; border-radius: 4px; overflow: auto !important; } .literalblock pre, .literalblock pre[class], .listingblock pre, .listingblock pre[class] { overflow-x: auto; white-space: pre; word-wrap: normal; } /* * This CSS ruleset solves: https://github.com/gradle/guides/issues/113#issuecomment-314826749. */ .literalblock pre::after, .literalblock pre[class]::after, .listingblock pre::after, .listingblock pre[class]::after { content: ""; } .quoteblock blockquote, .quoteblock blockquote p { text-align: left; text-align: start; } div.screenshot { box-shadow: 0 0 20px 1px rgba(0, 0, 0, 0.2); margin-left: auto; margin-right: auto; width: 90%; } .inset { box-shadow: 0 0 1px 1px rgba(0, 0, 0, 0.1); padding: 1em; } .image.inline-icon img { vertical-align: sub; } /* TOC */ #header>h1:first-child+#toc { background: none; border: 0 none; margin-top: 0; } #toc, #content #toc { border: 0 none; } #toc>ul { margin-left: 0; font-family: inherit; } #toc>ul>li { line-height: 1.25; margin-top: 0; padding-bottom: 0.5rem; } #toc>ul>li:last-of-type { padding-bottom: 0; } #toc a { font-style: normal; } #toc a:hover, #toc a:focus, #toc a:hover code, #toc a:focus code { color: #1DA2BD; } #toc a:active { text-decoration: none; } /* Site header specific styles */ .hamburger { background-color: transparent; background-image: none; border: none; border-radius: 4px; cursor: pointer; margin-left: auto; padding: 11px 10px; } .hamburger:focus { outline: 0; } .hamburger__bar { display: block; width: 22px; height: 2px; background-color: var(--black-color); border-radius: 1px; } .hamburger__bar+.hamburger__bar { margin-top: 4px; } .site-header { background-color: var(--top-header-color); } /* Override javadoc styles */ .site-header div { font-family: 'Lato', Arial, sans-serif; } .site-header__navigation-header a { align-self: center; border-bottom: 0 none; height: 36px; } .site-header .site-header-version { align-self: center; color: #1da2bd; font-size: 20px; padding-left: 1px; margin-top: 22px; } .site-header__navigation { z-index: 2; display: flex; flex-direction: column; } .site-header__navigation-header { display: flex; flex: 0 0 auto; margin-left: 12px; } .site-header__navigation-collapsible { flex: 1 1 auto; height: 210px; overflow: visible; transition: height 0.3s ease; } .site-header__navigation-items { display: flex; flex-direction: column; flex-wrap: wrap; align-items: flex-start; max-height: 210px; /* This matches the collapsible height above */ margin: 0 20px; padding-top: 12px; padding-left: 0; list-style-type: none; } .site-header__navigation-item { flex: 0 1 auto; font-size: 16px; width: 250px; } .site-header__navigation-item .site-header__navigation-link { position: relative; display: inline-block; cursor: pointer; width: 100%; padding: 5px; line-height: 20px; border: 0 none; color: var(--text-color); text-decoration: none; transition: none; -o-transition: none; -moz-transition: none; -webkit-transition: none; } .site-header__navigation-item .site-header__navigation-link:hover { color: #1DA2BD; } .site-header__navigation-item .site-header__navigation-link.active { font-weight: 500; } /* Navigation submenu styles */ .site-header__navigation-submenu-section { position: relative; } .site-header__navigation-submenu-section .site-header__down-arrow { width: 8px; height: 8px; margin-left: 2px; margin-top: 0; } .site-header__navigation-submenu-section .site-header__navigation-link:hover path { fill: none; } .site-header__navigation-submenu-section .site-header__navigation-submenu .site-header__navigation-submenu-item-link:hover { color: #1DA2BD; } .site-header__navigation-submenu-section .site-header__navigation-submenu { display: none; width: 170px; background-color: var(--menu-burger-color); top: 40px; left: 7px; /* NOTE: This must match the padding of .site-header__navigation-link */ padding: 3px 10px 6px 10px; z-index: 100; } .site-header__navigation-submenu-section .site-header__navigation-submenu .site-header__navigation-submenu-item-link { width: 100%; color: var(--text-color); white-space: nowrap; display: inline-block; padding-top: 3px; border: 0 none; transition: none; -o-transition: none; -moz-transition: none; -webkit-transition: none; } .site-header__navigation-submenu-section .site-header__navigation-submenu .site-header__navigation-submenu-item-link .site-header__navigation-submenu-item-link-text { display: inline-block; font-size: 16px; } .site-header__navigation-submenu-section.open .site-header__navigation-submenu { display: block; } /* Top navigation mobile styles */ @media (max-width: 1023px) { .site-header__navigation-collapsible--collapse { height: 0; overflow-y: hidden; } .site-header__navigation-submenu-section .site-header__navigation-submenu { padding: 0 1rem 0.5rem 1.5rem; display: block; top: 30px !important; left: 0 !important; } .site-header__navigation-item, .site-header__navigation-submenu-section .site-header__navigation-submenu .site-header__navigation-submenu-item-link .site-header__navigation-submenu-item-link-text { font-size: 18px; } .site-header { padding: 5px 12px; } .site-header-version { display: none; } .site-footer__navigation { flex-direction: column; } .site-footer__links { flex-wrap: wrap; } .site-footer__link-group { margin-bottom: 1rem; } } /* Top navigation desktop styles */ @media (min-width: 1024px) { .site-header { -webkit-box-shadow: 0 2px 4px 0 var(--box-shadow-color); -moz-box-shadow: 0 2px 4px 0 var(--box-shadow-color); box-shadow: 0 2px 4px 0 var(--box-shadow-color); z-index: 2; } body.dark-theme { .site-header { -webkit-box-shadow: none; -moz-box-shadow: none; box-shadow: none; z-index: 2; } } @media (prefers-color-scheme: dark) { .site-header { -webkit-box-shadow: none; -moz-box-shadow: none; box-shadow: none; z-index: 2; } body.light-theme { .site-header { -webkit-box-shadow: 0 2px 4px 0 var(--box-shadow-color); -moz-box-shadow: 0 2px 4px 0 var(--box-shadow-color); box-shadow: 0 2px 4px 0 var(--box-shadow-color); z-index: 2; } } } /* Pushes the section headings to just below the top nav bar when a user navigates directly to section anchors. */ #content h2[id], #content h3[id], #content h4[id], #content h5[id] { padding-top: 60px; } #content h2[id] { /* Little extra room above h2s */ margin-top: -1em; } #content h3[id], #content h4[id], #content h5[id] { margin-top: -60px; } .site-header__navigation { flex-direction: row; } .site-header__navigation-button { display: none; } .site-header__navigation-items { flex-direction: row; align-items: center; float: right; width: auto; padding-top: 0; } .site-header__navigation-item { width: auto; } .site-header__navigation-item .site-header__navigation-link { padding: 15px 18px; } .site-header__navigation-item:last-of-type .site-header__navigation-link { padding-right: 0; } .site-header__navigation-link--button { padding: 6px 12px; } .site-header__navigation-collapsible { height: auto; } .site-header__navigation-submenu-section .site-header__navigation-submenu { position: absolute; border: 1px solid #9a9a9a; border-radius: 3px; } .site-header__navigation-submenu-section:hover .site-header__navigation-submenu { display: block; } /* Pushes the section headings to just below the top nav bar when a user navigates directly to section anchors. It doesn't work if you try to apply the padding and margin to the `h` elements directly. */ .chapter a[name], .chapter .anchor { padding-top: 60px; margin-top: -60px; text-decoration: none; border: none; display: inline-block; } } /* Side Navigation styles */ /* Docs Navigation */ .docs-navigation { border-right: 1px solid var(--various-border-color); } .docs-navigation .search-container { display: none; margin-bottom: 1rem; } .docs-navigation a { color: var(--text-color); display: block; font-size: .95rem; position: relative; } .docs-navigation a:focus { outline: none; } .docs-navigation a:hover { color: #35c1e4; text-decoration: none; } .docs-navigation a code { color: var(--text-color); overflow-wrap: break-word; padding: 0; word-break: break-all; } .docs-navigation a.active { color: #06A0CE; outline: 0; border: none; -moz-outline-style: none; } .docs-navigation a.active:hover { color: #35c1e4; text-decoration: underline; } .docs-navigation ul { list-style-type: none; margin: 0; padding: 0; } .docs-navigation li>ul>li a { font-size: 14px; color: #7d7d7d; } .docs-navigation ul:last-of-type { margin-bottom: 0; } .docs-navigation li { margin-top: 0.3334em; line-height: 1.3334; } .docs-navigation li:last-of-type { margin-bottom: 0; } .docs-navigation .nav-dropdown:before { content: '\2023'; font-size: 28px; position: absolute; margin-left: -14px; margin-top: -8px; } .docs-navigation .nav-dropdown.expanded:before { transform: rotate(90deg); } .docs-navigation>ul ul, .docs-navigation>ul ul ul { display: none; height: 0; margin-left: 1rem; } .docs-navigation>ul ul:target, .docs-navigation>ul ul:target ul, .docs-navigation>ul .nav-dropdown.expanded~ul { display: block; height: auto; } .docs-navigation h3 { font-size: .95rem; font-weight: 600; line-height: 1.5; margin: 1.5em 0 0; } .docs-navigation .docs-home-link { position: relative; } @media screen and (min-width: 45rem) { .main-content { display: flex; } } /* User guide navigation appears for desktops */ @media screen and (min-width: 64rem) { .docs-navigation { flex: 0 0 auto; width: 13.75rem; } .main-content>.appendix, .main-content>.book, .main-content>.chapter { flex: 0 0 auto; margin: 0 auto; } } /** * For mobile devices, we show navigation at bottom of page. * * This is the simplest solution to this issue. */ @media not screen and (min-width: 64rem) { /* Repeat the class twice to prioritize our mobile classes! */ .content.content { /* Make the height equal to the real height of content */ overflow: visible; } .main-content { /* Main content show first */ flex-direction: column-reverse; } .docs-navigation.docs-navigation { /* Fill the main container */ width: 100%; /* Don't clip the navigation container */ overflow: visible; } } /* Userguide Meta */ .chapter-meta { float: right; text-align: right; } .chapter-meta .edit-link { color: #999; font-size: 0.9em; padding-right: 3px; } .chapter-meta .edit-link svg { margin-right: 1px; } /* Clever use of RTL to fill in all stars to left of hover position */ .rating { direction: rtl; } .rating>.star { cursor: pointer; display: table-cell; padding: 3px; } .rating>.star:hover>svg>g, .rating>.star:hover~.star>svg>g, .rating>.star.selected>svg>g, .rating>.star.selected~.star>svg>g { fill: #999; } /* Footer styles */ .site-footer {} .site-footer__navigation { display: flex; padding: 30px 12px; max-width: 62.5rem; margin: 0 auto; padding-left: 5rem; } @media not screen and (min-width: 64rem) { .site-footer__navigation { /* same to nav.docs-navigation for mobiles */ padding: 20px 20px 20px 26px; } } .site-footer__links { display: flex; flex: 1 1 auto; } .site-footer__links .site-footer__links-list { list-style-type: none; margin: 0; } .site-footer__links .site-footer__links-list a { color: var(--footer-other-text-color); } .site-footer__link-group { flex: 1 1 auto; flex-basis: 175px; } .site-footer__link-group header { color: var(--text-color); } .site-footer__subscribe-newsletter .newsletter-form__header h5 { color: var(--text-color); margin-top: 0; } .site-footer__subscribe-newsletter p { font-size: 0.875rem; margin: 2px 0 0 2px; opacity: 0.7; } .site-footer__subscribe-newsletter .disclaimer { color: var(--footer-other-text-color); font-size: 0.75rem; opacity: 0.55; } .site-footer__subscribe-newsletter .newsletter-form { padding-top: 6px; display: flex; justify-content: flex-start; } .site-footer__subscribe-newsletter .email, .site-footer__subscribe-newsletter .submit { height: 40px; } .site-footer__subscribe-newsletter .email { line-height: 40px; width: 250px; color: #1DA2BD; font-size: 16px; padding-left: 20px; border-top-left-radius: 4px; border-bottom-left-radius: 4px; border: 1px solid var(--footer-form-color); } .site-footer__subscribe-newsletter .submit { font-family: inherit; font-size: inherit; line-height: inherit; width: 100px; background-color: #1BA8CB; color: #fff; font-weight: 500; border-top-right-radius: 4px; border-bottom-right-radius: 4px; border-style: none; cursor: pointer; transition: all .3s ease; } /* Secondary footer (below) */ .site-footer-secondary { background-color: var(--footer-white-color); border-top: 1px solid var(--various-border-color); width: 100%; z-index: 1; } body.dark-theme { .site-footer-secondary { background-color: var(--footer-white-color); border-top: none; width: 100%; z-index: 1; } } @media (prefers-color-scheme: dark) { .site-footer-secondary { background-color: var(--footer-white-color); border-top: none; width: 100%; z-index: 1; } body.light-theme { .site-footer-secondary { background-color: var(--footer-white-color); border-top: 1px solid var(--various-border-color); width: 100%; z-index: 1; } } } .site-footer-secondary__contents { display: flex; align-items: center; justify-content: space-between; max-width: 75rem; margin-left: auto; margin-right: auto; font-size: 0.875rem; padding: 0.5rem 0.75rem; } /* * 1. Value is the largest computed width among 'site-footer__copy' and 'site-footer__links'. */ .site-footer__copy, .site-footer__secondary-links { flex-grow: 0; flex-basis: 280px; /* 1. */ } /* * 1. 'flex-shrink: 1' is applied to the element with the smallest computed width among * 'site-footer__copy' and 'site-footer__links'. */ .site-footer__copy { flex-shrink: 1; /* 1. */ } .site-footer__logo { flex: 0 0 auto; margin-right: 10px; margin-left: 10px; } .site-footer__logo svg { width: 35px; height: 35px; } /* * 1. 'flex-shrink: 0' is applied to the element with the largest computed width among * 'site-footer__copy' and 'site-footer__links'. */ .site-footer__secondary-links { flex-shrink: 0; /* 1 */ text-align: right; white-space: nowrap; } .site-footer-secondary a { color: #999; } .site-footer-secondary__links a:not(:last-child) { padding-right: 10px; } .site-footer-secondary__links a:not(:first-child) { padding-left: 10px; } @media all and (max-width: 29.99rem) { .site-footer__rights, .site-footer-secondary__links { display: none; } .site-footer__logo { order: 1; text-align: left; } .site-footer__copy { order: 2; text-align: right; } } /* Avoid the footer taking up much of the screen on short displays */ @media all and (max-height: 56.25rem) { .site-footer__navigation { margin: 1.5rem auto 0 auto; padding-top: 0; padding-bottom: 0; } } @media screen and (min-width: 84.375rem) { .ui-logos .ui-logo { box-shadow: 0 6px 15px 1px rgba(0, 0, 0, 0.56); } } /* User Manual Home */ .technology-logos, .ui-logos { display: flex; flex-direction: row; flex-wrap: wrap; justify-content: space-around; } .technology-logo, .ui-logo { flex: 0 1 auto; } .ui-logo { width: 224px; height: 135px; margin: 12px; } /* Samples download button */ .download { display: flex; } .download a { border-style: solid; border-width: 1px; text-decoration: none; padding: 5px; display: block; width: 10em; margin: 5px; } .download ul { list-style: none; list-style-type: none; } .download li { float: right; } .docs-navigation { width: 18rem; padding: 20px 20px 20px 26px; background: var(--nav-color); overflow-y: scroll; overflow-x: auto; } .layout { display: flex; flex-direction: column; overflow: hidden; height: 100vh; } .main-content { overflow-y: auto; overflow-x: auto; display: flex; } .content { flex: 1 1 auto; overflow: auto; padding-left: 0; padding-right: 0; } .content .chapter { padding: 2rem 2.4rem; } #toc a:active { font-weight: 500; } .site-header { margin-bottom: 1rem; } .site-header__navigation-submenu-item { padding: 2px 0; } .site-footer { background-color: var(--footer-color); padding: 20px 0 40px 0; border-top: 1px solid var(--various-border-color); } #header { margin-left: 0; } #header>h1:first-child { margin-bottom: 40px; } @media screen and (min-width: 64rem) { #header { margin-bottom: 20px; } .site-header { margin-bottom: 0; z-index: 2; } .site-header__navigation-header { margin-top: -7px; } .site-header__navigation-submenu-section:after { content: '\2023'; font-size: 28px; position: absolute; transform: rotate(90deg); margin-right: 10px; top: 5px; right: -7px; } .site-footer__navigation { flex-wrap: wrap; } .site-footer__link-group { flex: 1 1 auto; } .site-footer__links { margin-bottom: 1rem; } } @media screen and (min-width: 75rem) { .content .chapter { box-sizing: content-box; } #content { padding-right: 260px; margin: 0; } /* #toc here must be referenced as #header #toc since we don't want to change single page #toc */ #header #toc { position: fixed; margin: 0 auto; padding-bottom: 0; right: 0; top: 65px; width: 260px; z-index: 1; overflow: auto; border-radius: 0 0 5px 0; max-height: calc(100% - 118px); margin-right: 15px; } #header #toctitle { margin-top: 1.3em; } #header #toc>ul { /* margin-left have to increase if you change border thickness of active toc item */ margin-left: 1px; border-left: 1px solid #666; margin-bottom: 0; padding-right: 10px; padding-bottom: 0.5rem; background-color: var(--white-color); } #header #toc>ul>li, #toc>ul>li:last-of-type { padding: 0.5rem 0; margin: 0; } #header #toc a { padding-left: 10px; font-weight: 400; color: var(--text-color); font-size: .95rem; display: inline-block; } #header #toc a.active { font-weight: 500; border-left: 3px solid #01303a; margin-left: -2px; padding-left: 9px; } .site-footer__navigation { flex-wrap: wrap; margin-left: auto; padding-left: 3rem; } .site-footer__link-group { flex: 0.15 1 auto; } .site-footer__subscribe-newsletter { /* A fix so subscribe disclaimer does not go under long ToC */ max-width: calc(100% - 17rem); } } @media screen and (min-width: 80rem) { .site-footer__subscribe-newsletter { max-height: none; } } @media screen and (min-width: 100rem) { .content .chapter { max-width: 60.5rem; } #header { margin: 0 auto; } #content { padding-right: 0; margin: 0 auto; } #header #toc { right: initial; margin-left: 62.5rem; } .site-footer__navigation { padding-left: 0; } .site-footer__link-group { flex: 0.2 1 auto; } } @media screen and (min-width: 112rem) { .content .chapter { max-width: 62.5rem; margin: 0 auto; padding-right: 3.5rem; position: relative; left: -130px; } #header #toc { right: initial; margin-left: 64.5rem; } .site-footer__link-group { flex: 0.2 1 auto; } } @supports (-moz-appearance:meterbar) and (background-blend-mode:difference, normal) { /* Firefox only */ .site-header__navigation-submenu-section:after { top: 2px; right: -4px; } } /* Added dark mode and other items for outdated Prettify.css */ code[data-lang="text"] .pln, code[data-lang="text"] .str, code[data-lang="text"] .kwd, code[data-lang="text"] .com, code[data-lang="text"] .typ, code[data-lang="text"] .lit, code[data-lang="text"] .pun, code[data-lang="text"] .opn, code[data-lang="text"] .clo, code[data-lang="text"] .tag, code[data-lang="text"] .atn, code[data-lang="text"] .atv, code[data-lang="text"] .dec, code[data-lang="text"] .var, code[data-lang="text"] .fun { color: #000; } body.dark-theme { code[data-lang="text"] .pln, code[data-lang="text"] .str, code[data-lang="text"] .kwd, code[data-lang="text"] .com, code[data-lang="text"] .typ, code[data-lang="text"] .lit, code[data-lang="text"] .pun, code[data-lang="text"] .opn, code[data-lang="text"] .clo, code[data-lang="text"] .tag, code[data-lang="text"] .atn, code[data-lang="text"] .atv, code[data-lang="text"] .dec, code[data-lang="text"] .var, code[data-lang="text"] .fun { color: #fff !important; } .com { color: #909090 !important; } .str, .tag { color: #90a959 !important; } .kwd, .atv { color: #d28445 !important; } .typ { color: #f4bf75 !important; } .lit, .atn { color: #6a9fb5 !important; } .pun, .pln, .opn, .clo { color: #d0d0d0 !important; } .dec, .var { color: #aa759f !important; } li.L1, li.L3, li.L5, li.L7, li.L9 { background: #111 !important; } } @media (prefers-color-scheme: dark) { code[data-lang="text"] .pln, code[data-lang="text"] .str, code[data-lang="text"] .kwd, code[data-lang="text"] .com, code[data-lang="text"] .typ, code[data-lang="text"] .lit, code[data-lang="text"] .pun, code[data-lang="text"] .opn, code[data-lang="text"] .clo, code[data-lang="text"] .tag, code[data-lang="text"] .atn, code[data-lang="text"] .atv, code[data-lang="text"] .dec, code[data-lang="text"] .var, code[data-lang="text"] .fun { color: #fff !important; } .com { color: #909090 !important; } .str, .tag { color: #90a959 !important; } .kwd, .atv { color: #d28445 !important; } .typ { color: #f4bf75 !important; } .lit, .atn { color: #6a9fb5 !important; } .pun, .pln, .opn, .clo { color: #d0d0d0 !important; } .dec, .var { color: #aa759f !important; } li.L1, li.L3, li.L5, li.L7, li.L9 { background: #111 !important; } body.light-theme { code[data-lang="text"] .pln, code[data-lang="text"] .str, code[data-lang="text"] .kwd, code[data-lang="text"] .com, code[data-lang="text"] .typ, code[data-lang="text"] .lit, code[data-lang="text"] .pun, code[data-lang="text"] .opn, code[data-lang="text"] .clo, code[data-lang="text"] .tag, code[data-lang="text"] .atn, code[data-lang="text"] .atv, code[data-lang="text"] .dec, code[data-lang="text"] .var, code[data-lang="text"] .fun { color: #000; } .pln { color: #000 !important;; } .com { color: #800 !important;; } .str, .tag { color: #080 !important;; } .kwd, .atv { color: #008 !important;; } .typ { color: #606 !important;; } .lit, .atn { color: #066 !important;; } .pun, .opn, .clo { color: #660 !important;; } .dec, .var { color: #606 !important;; } li.L1, li.L3, li.L5, li.L7, li.L9 { background: #eee; } } } /* DPE University button*/ /* CSS */ .badge-wrapper { padding-top: 0px; padding-bottom: 20px; a { text-decoration: none; } a:link { text-decoration: none; } a:visited { text-decoration: none; } a:hover { text-decoration: none; } a:active { text-decoration: none; } } .badge { background-color: var(--black-color); height: 24px; border-radius: 12px; border-color: var(--black-color); border-style: solid; border-width: 1px; padding: 5px; a { color: var(--gradle-blue); } } .badge-type { border-radius: 8px; margin-right: 10px; padding-left: 10px; padding-right: 10px; } .badge-text { color: var(--white-color); } .button--blue { color: white; border-color: transparent; &:hover { color: white; } } .button--blue { background: var(--gradle-blue); background: linear-gradient(var(--button-gradient-angle), var(--gradle-blue) 0%, var(--gradle-blue-lite) 100%); &:hover { background: var(--gradle-blue-lite); } } /* Custom Download button*/ /* CSS */ .button-9 { appearance: button; backface-visibility: hidden; background-color: #209BC4; border-radius: 6px; border-width: 0; box-shadow: rgba(50, 50, 93, .1) 0 0 0 1px inset, rgba(50, 50, 93, .1) 0 2px 5px 0, rgba(0, 0, 0, .07) 0 1px 1px 0; box-sizing: border-box; color: #fff; cursor: pointer; font-family: -apple-system, system-ui, "Segoe UI", Roboto, "Helvetica Neue", Ubuntu, sans-serif; font-size: 100%; height: 44px; line-height: 1.15; margin: 12px 12px 12px 0px; outline: none; overflow: hidden; padding: 0 25px; position: relative; text-align: center; text-transform: none; transform: translateZ(0); transition: all .2s, box-shadow .08s ease-in; user-select: none; -webkit-user-select: none; touch-action: manipulation; width: 25%; } .button-9:disabled { cursor: default; } .button-9:focus { box-shadow: rgba(50, 50, 93, .1) 0 0 0 1px inset, rgba(50, 50, 93, .2) 0 6px 15px 0, rgba(0, 0, 0, .1) 0 2px 2px 0, rgba(50, 151, 211, .3) 0 0 0 4px; } .button-9-sect { padding-bottom: 1.25em; } /* Theme toggle switch button */ /* Switch */ .switch { position: relative; display: inline-block; width: 60px; height: 34px; align-self: center; } .switch input { opacity: 0; width: 0; height: 0; } .slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; -webkit-transition: 0.4s; transition: 0.4s; } .slider:before { position: absolute; content: ""; height: 26px; width: 26px; left: 4px; bottom: 4px; background-color: white; -webkit-transition: 0.4s; transition: 0.4s; } input:checked+.slider { background-color: #2196f3; } input:checked+.slider:before { -webkit-transform: translateX(26px); -ms-transform: translateX(26px); transform: translateX(26px); } /* Rounded sliders */ .slider { border-radius: 30px; } .slider:before { border-radius: 50%; } </style> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/prettify/r298/prettify.min.css"> <meta name="adoc-src-path" content="optimizing-performance/incremental_build.adoc"> <link crossorigin href="//assets.gradle.com" rel="preconnect"> <link href="https://fonts.googleapis.com/css?family=Inconsolata:400,700" rel="stylesheet"/> <style type="text/css">.multi-language-selector .language-option[data-lang='groovy'], .exampleblock[data-lang=groovy] > .content .title { background-image: url('data:image/svg+xml;base64,<svg
   xmlns="http://www.w3.org/2000/svg"
   width="614.06085"
   height="303.5986"
   version="1.1">
  <g
     transform="translate(-35.396599,-30.558196)">
    <path
       d="m 154.97687,332.69162 c 0,-0.80587 10.83123,-18.62172 24.0694,-39.59076 13.23819,-20.96905 22.66057,-38.62066 20.93867,-39.22577 -1.72191,-0.6051 -7.67992,0.48567 -13.24002,2.42393 -16.74524,5.83743 -20.18605,4.29016 -32.69308,-14.70155 -13.53265,-20.54906 -14.01724,-22.66983 -6.96158,-30.46624 4.60876,-5.09256 4.33159,-6.27967 -3.2319,-13.84316 -4.55009,-4.5501 -8.27289,-9.64309 -8.27289,-11.31776 0,-2.81679 -30.99145,-15.58933 -79.989496,-32.96615 -11.10966,-3.93997 -20.199375,-7.82928 -20.199375,-8.64291 0,-0.81366 23.470738,-1.00476 52.157191,-0.42469 l 52.15721,1.05466 5.09127,-8.03001 c 21.51644,-33.93592 54.00952,-64.588212 68.46705,-64.588212 3.0106,0 9.12141,2.86918 13.57953,6.375945 7.25946,5.710283 8.2565,9.248632 9.54994,33.891967 0.7943,15.13382 2.42422,28.49601 3.62198,29.69379 1.19775,1.19776 4.99769,-0.37425 8.44431,-3.49339 4.4014,-3.98323 9.03484,-5.06313 15.56761,-3.6283 6.76756,1.48641 10.6271,0.46895 14.16938,-3.73543 5.3136,-6.30666 31.90596,-48.937201 31.90596,-51.148744 0,-0.751588 5.26509,-9.757306 11.70023,-20.012703 6.43509,-10.255397 13.84664,-22.080631 16.47007,-26.278283 4.66558,-7.465201 5.3966,-6.581735 33.42692,40.398736 28.94121,48.507164 44.51767,66.406554 52.3157,60.117634 5.442,-4.38889 34.00055,-4.63794 41.98246,-0.36614 4.53665,2.42793 7.41916,2.3961 9.92484,-0.10962 5.20007,-5.20006 17.64982,-4.29437 20.90412,1.52078 2.56393,4.58146 3.21784,4.58146 7.02014,0 2.30606,-2.77867 9.13619,-5.05208 15.17803,-5.05208 8.53884,0 11.79336,1.77367 14.61403,7.96437 l 3.62881,7.96436 56.09203,-1.9858 c 30.85062,-1.09222 56.09204,-1.28688 56.09204,-0.43255 0,0.85427 -22.90608,10.07195 -50.90241,20.48371 -27.99632,10.41172 -51.367,19.24305 -51.93484,19.62512 -0.56785,0.38207 0.69847,9.49273 2.81405,20.24588 5.50457,27.97917 1.91458,46.62589 -11.92629,61.94604 -6.209,6.87263 -16.28338,14.14395 -22.38753,16.15849 -6.10415,2.01454 -11.09844,4.38614 -11.09844,5.27019 0,0.88406 6.51525,11.67893 14.47835,23.98859 7.96309,12.30969 13.2828,22.38125 11.82152,22.38125 -2.38504,0 -60.46987,-22.44238 -150.78898,-58.2607 -17.809,-7.06258 -34.02683,-12.84109 -36.03961,-12.84109 -3.75363,0 -36.1669,12.28662 -131.22423,49.74206 -55.12525,21.72103 -57.29217,22.47348 -57.29217,19.89451 z m 113.11648,-51.25265 c 29.32949,-11.39506 58.41657,-22.5308 64.63798,-24.74607 10.70068,-3.81019 14.27918,-2.85493 66.25394,17.68634 30.21825,11.94274 60.03252,23.57587 66.25392,25.85134 6.22141,2.27552 19.04317,7.22059 28.49275,10.98908 10.77503,4.29704 16.28251,5.33166 14.77108,2.77484 -16.8837,-28.56113 -17.3998,-29.03716 -29.10083,-26.84205 -14.11361,2.64772 -22.87897,-0.0685 -27.38369,-8.48554 -2.92112,-5.45816 -2.02944,-8.12759 5.25442,-15.73031 10.84887,-11.32377 9.14457,-21.74144 -4.84429,-29.61099 -5.36764,-3.01959 -12.14059,-10.48372 -15.05102,-16.58697 l -5.29169,-11.09682 -11.34551,7.69928 c -13.94458,9.46304 -30.95062,9.95063 -45.14764,1.29448 l -10.46488,-6.38065 -12.15841,8.26284 c -12.17462,8.27386 -26.19108,9.3428 -40.43752,3.08392 -3.92498,-1.72439 -5.65583,-1.05415 -5.65583,2.19008 0,2.57118 -3.70429,6.36265 -8.23181,8.42553 -13.5742,6.18479 -26.82107,4.54247 -35.80229,-4.43875 l -8.18944,-8.18944 -6.60982,8.40303 c -3.63539,4.62166 -12.04952,11.83698 -18.69805,16.03398 -8.22965,5.19518 -18.41741,17.87182 -31.9164,39.71361 -10.90549,17.64546 -19.82816,32.98042 -19.82816,34.07776 0,1.0973 8.36255,-1.52736 18.58342,-5.83259 10.22089,-4.30521 42.58028,-17.15087 71.90977,-28.54593 z m 248.76729,-12.25846 c 22.25557,-12.50833 27.41424,-35.64808 17.57685,-78.84318 -8.2214,-36.09961 -12.3255,-47.91327 -17.19494,-49.49597 -3.36902,-1.09503 -3.88674,0.10699 -1.98858,4.61635 12.31516,29.25771 12.99963,43.94662 2.24022,48.07541 -7.39151,2.83642 -15.23239,-7.79075 -21.39902,-29.00326 -4.77512,-16.42587 -9.76861,-23.82837 -13.53387,-20.06311 -0.90157,0.9016 0.67848,6.12117 3.51124,11.59913 2.83273,5.4779 6.71721,21.97455 8.63217,36.6592 1.91497,14.68462 5.61385,30.06073 8.21973,34.16912 6.77198,10.67661 17.55128,8.1036 24.52382,-5.85384 6.89373,-13.79975 7.67284,-4.60781 0.9693,11.43602 -6.96074,16.65937 -27.63442,21.65481 -51.58418,12.46442 -3.8333,-1.47096 -5.13039,0.0515 -5.13039,6.02097 0,4.39431 -2.93618,11.72245 -6.52488,16.2847 l -6.52488,8.29506 8.94881,1.51123 c 15.44945,2.60909 36.63328,-0.77642 49.2586,-7.87225 z m -320.3665,-27.53733 c 46.45965,-13.3545 54.76188,-28.93093 39.32885,-73.78782 -3.58185,-10.41079 -6.51243,-21.60971 -6.51243,-24.88654 0,-11.15712 -5.61152,-6.00161 -9.81713,9.01943 -5.56203,19.86561 -22.29115,36.75053 -36.34516,36.68364 -12.20547,-0.0582 -16.18251,-2.28008 -21.22378,-11.85768 -9.04748,-17.18882 0.81469,-43.56797 25.96954,-69.46272 18.42431,-18.966304 28.48893,-20.683965 28.48893,-4.86205 0,24.6732 -17.01134,60.9947 -25.97309,55.45604 -4.38205,-2.70826 -3.67138,-14.66752 1.41722,-23.85009 4.32735,-7.80882 3.44814,-19.70771 -1.4562,-19.70771 -5.68689,0 -16.94547,20.71196 -18.43318,33.91074 -1.31515,11.66826 -0.49286,14.50545 5.06652,17.48072 19.48244,10.4267 45.00531,-21.39545 46.29083,-57.71584 0.67504,-19.073181 -3.01676,-24.441105 -14.77906,-21.488951 -17.11879,4.296543 -63.23483,63.786641 -63.23483,81.573461 0,13.9128 6.98737,23.69728 19.28827,27.0096 20.91419,5.63162 41.13539,-4.37389 55.4633,-27.44338 l 6.02175,-9.69571 0.0132,13.17223 c 0.0162,19.0738 -12.42619,29.1274 -51.69817,41.76793 -9.77649,3.1468 -18.18332,6.05441 -18.6818,6.46137 -1.82056,1.48632 16.68739,27.47571 19.56644,27.47571 1.63262,0 11.19115,-2.36359 21.24123,-5.25238 z M 476.411,217.96301 c 4.66347,-5.1531 5.48551,-10.75103 4.48579,-30.54823 -1.08739,-21.53331 -2.27746,-25.33851 -10.66143,-34.08949 -15.14882,-15.81194 -33.86123,-11.77828 -22.90819,4.93814 5.82256,8.88637 12.9254,7.36864 10.41641,-2.22581 -1.99864,-7.64276 1.72998,-7.84358 8.22839,-0.44322 12.19301,13.88537 9.11534,33.12698 -5.2986,33.12698 -9.86716,0 -12.94195,-4.23176 -19.37353,-26.66318 -2.93059,-10.22087 -6.49964,-18.58343 -7.93127,-18.58343 -4.76899,0 -6.89287,4.20878 -3.92721,7.7824 1.61088,1.9411 6.07218,15.89127 9.91404,31.00041 9.66903,38.02596 23.17666,51.04145 37.0556,35.70543 z m -183.77125,0.60395 c 1.98978,-1.335 2.89975,-7.64893 2.07865,-14.423 -1.32449,-10.92702 -2.06662,-11.7241 -7.9727,-8.56327 -8.48733,4.54227 -17.60839,-4.06351 -20.70222,-19.5326 -2.34707,-11.73538 -3.06526,-11.50489 14.02576,-4.50149 2.14288,0.87808 7.59671,-2.10402 12.11963,-6.62694 8.27408,-8.27408 10.99802,-18.21299 4.99156,-18.21299 -1.77754,0 -3.2319,1.45436 -3.2319,3.2319 0,4.64923 -8.84231,3.98982 -10.83465,-0.80797 -1.16224,-2.79879 -3.63807,-1.80591 -8.05915,3.2319 -3.50985,3.99948 -7.79673,7.27178 -9.52641,7.27178 -1.72969,0 -4.0656,-3.2723 -5.19088,-7.27178 -1.97195,-7.00856 -2.21366,-7.05277 -6.67737,-1.22169 -3.9106,5.10854 -3.94557,6.73583 -0.22461,10.45661 3.94062,3.94064 11.42615,30.87102 11.42615,41.10744 0,12.72867 17.52933,22.73832 27.7783,15.8621 z m 58.94309,-16.87531 c 12.14567,-12.14567 15.74452,-30.35143 9.12943,-46.18357 -5.17016,-12.37397 -14.14466,-17.00516 -26.79878,-13.82918 -9.40263,2.35991 -23.72311,29.77659 -23.77387,45.51536 -0.0792,24.52902 23.25053,32.69005 41.44322,14.49739 z m -22.08341,-19.43407 c -3.5551,-3.5551 -6.41755,-10.46328 -6.36102,-15.35153 0.0934,-8.07965 0.49315,-8.3735 4.39619,-3.2319 4.82464,6.35569 13.39797,7.45666 16.68241,2.14232 1.19432,-1.93241 0.55295,-5.13202 -1.4252,-7.11017 -5.08132,-5.08132 -4.46561,-11.99963 1.06792,-11.99963 6.15137,0 14.72679,12.51477 14.72679,21.49191 0,6.60674 -13.4444,20.5228 -19.82724,20.5228 -1.53785,0 -5.70476,-2.90872 -9.25985,-6.4638 z m 86.34897,18.58341 c 13.41074,-14.60263 12.10376,-37.098 -3.09825,-53.32634 -7.85057,-8.3806 -25.29298,-9.82552 -32.43185,-2.68664 -6.58761,6.58761 -13.16465,32.49303 -10.72122,42.22841 5.21122,20.76318 32.40041,28.86652 46.25132,13.78457 z m -27.45565,-23.61452 c -5.30623,-3.71664 -7.12941,-8.14974 -6.97806,-16.96747 0.16935,-9.86033 0.6843,-10.74981 2.96145,-5.11415 3.34573,8.28032 10.36292,11.40734 16.51814,7.3609 3.81753,-2.50963 3.63929,-3.69597 -1.10104,-7.32907 -6.32189,-4.84523 -7.55508,-11.70191 -2.10465,-11.70191 4.87364,0 22.30402,19.06666 22.30402,24.39778 0,5.20316 -12.37739,14.38503 -19.39139,14.38503 -2.76405,0 -8.2579,-2.26402 -12.20847,-5.03111 z m 189.96292,-14.28887 33.93495,-12.73682 -36.35888,-0.13125 c -32.5392,-0.11736 -36.35424,0.46307 -36.31475,5.52475 0.0401,5.12757 3.33073,20.28395 4.3727,20.13967 0.23722,-0.0329 15.70177,-5.79124 34.36598,-12.79648 z m -443.49343,-2.2793 3.46825,-10.28761 -30.46686,-1.02404 c -16.756744,-0.56322 -30.463584,-0.13213 -30.45958,0.95804 0.0058,1.59513 52.50657,22.10707 53.66174,20.96552 0.18035,-0.1784 1.88892,-4.95372 3.79645,-10.61191 z m 208.9092,-31.88695 c 7.16667,1.146 15.24981,4.07924 17.96256,6.51835 4.21279,3.78783 6.04528,3.52966 12.56207,-1.76985 4.19643,-3.4125 9.65026,-6.20457 12.11963,-6.20457 2.46939,0 4.48982,-0.71308 4.48982,-1.58467 0,-3.00918 -46.53954,-79.21252 -48.31447,-79.10961 -2.085,0.120872 -49.78603,80.08798 -51.25464,85.92437 -0.61634,2.44952 1.31804,3.35371 5.07364,2.3716 3.33836,-0.873 7.95416,0.68326 10.25727,3.45836 3.7354,4.50087 5.26108,4.14229 14.13068,-3.32097 8.42647,-7.09041 11.9308,-8.0488 22.97344,-6.28301 z"
       style="fill:#333333;fill-opacity:1" />
    <path
       style="fill:#6398aa;fill-opacity:1;stroke:none"
       d="m 309.54579,140.87922 c -0.50075,-0.23311 -1.11804,-0.76799 -2.5278,-2.19035 -1.91188,-1.92897 -2.67188,-2.49013 -4.26108,-3.14628 -2.08791,-0.86204 -4.3549,-1.09423 -6.48231,-0.66391 -1.89808,0.38393 -2.42435,0.42527 -3.28242,0.2578 -1.43224,-0.27953 -1.94157,-1.14929 -1.53583,-2.62272 0.50573,-1.83657 4.33693,-8.94255 12.00899,-22.27387 15.5837,-27.078988 36.53624,-61.220968 38.85056,-63.306662 0.25631,-0.230994 0.265,-0.230994 0.52248,0 1.37768,1.235976 9.4762,13.725889 20.54036,31.678298 14.96696,24.285004 27.41102,45.643714 27.41102,47.047704 0,0.85729 -1.31608,1.37215 -4.08591,1.59845 -3.44226,0.28124 -7.42478,2.30188 -12.86887,6.52936 -2.58712,2.00898 -3.69126,2.75933 -4.95062,3.36438 -1.04928,0.50411 -1.13692,0.52437 -2.26854,0.52437 -1.11368,0 -1.22661,-0.0249 -2.09623,-0.46128 -0.51213,-0.25702 -1.50469,-0.9493 -2.24155,-1.56342 -2.17848,-1.81561 -4.79918,-3.13614 -9.07197,-4.57124 -5.42997,-1.82376 -11.24454,-2.9184 -16.19551,-3.04896 -3.90934,-0.10308 -5.71201,0.24798 -8.67602,1.68963 -2.41988,1.17698 -3.58621,2.01311 -9.12475,6.54145 -5.63376,4.60617 -7.63442,5.56205 -9.664,4.61725 z" />
    <path
       style="fill:#6398aa;fill-opacity:1;stroke:none"
       d="m 128.63786,170.739 c -10.159,-2.9607 -45.503171,-16.91962 -50.450924,-19.92523 -0.682916,-0.41484 -0.738098,-0.47787 -0.543207,-0.62038 1.131563,-0.82741 12.337983,-1.23901 25.004031,-0.91836 5.05131,0.12788 35.50132,1.13323 35.5509,1.17377 0.0997,0.0815 -6.52164,19.2888 -7.03051,20.39433 -0.21251,0.4617 -0.65063,0.44367 -2.53029,-0.10413 z" />
    <path
       style="fill:#6398aa;fill-opacity:1;stroke:none"
       d="m 543.69413,175.31055 c -1.3862,-2.71287 -3.88769,-14.97067 -3.96078,-19.40858 -0.0284,-1.72424 0.18667,-2.42741 0.9606,-3.1408 1.77378,-1.63501 5.37938,-2.2232 15.29017,-2.49434 5.00347,-0.13689 28.1019,-0.15796 44.41127,-0.0405 l 11.42859,0.0823 -27.5177,10.31427 c -25.09292,9.4054 -39.68473,14.84126 -40.22491,14.9849 -0.13517,0.036 -0.26981,-0.0674 -0.38724,-0.29723 l 0,0 z" />
    <path
       style="fill:#6398aa;fill-opacity:1;stroke:none"
       d="m 178.08835,315.51433 c 0,-0.77078 3.2689,-6.5331 11.55395,-20.36698 19.85118,-33.14631 28.92715,-45.16012 40.07292,-53.04429 9.97127,-7.05337 15.30279,-11.9294 21.24539,-19.43033 l 3.66409,-4.62492 4.9399,4.85652 c 8.64784,8.50189 13.8613,10.96668 23.29717,11.01432 11.54058,0.0583 24.17849,-6.3881 24.17849,-12.33299 0,-1.3398 0.95404,-2.72236 1.87857,-2.72236 0.39132,0 2.61686,0.68365 4.94565,1.51923 6.06992,2.1779 9.63028,2.96548 14.60912,3.23165 4.93998,0.26409 8.54848,-0.1704 13.35817,-1.60841 4.72561,-1.41288 7.44709,-2.85905 15.59833,-8.28882 4.1076,-2.73618 7.59954,-4.97487 7.75988,-4.97487 0.16033,0 3.12534,1.71896 6.5889,3.81991 3.46356,2.10095 7.62542,4.38133 9.24859,5.06751 11.06862,4.67918 23.02445,4.3739 33.97126,-0.86741 1.95795,-0.93747 6.56793,-3.73074 10.2444,-6.20727 3.67648,-2.47653 6.73613,-4.44576 6.79923,-4.37606 0.0631,0.0697 1.45605,2.9208 3.09544,6.33578 1.6394,3.41498 3.69895,7.2667 4.57679,8.55937 3.80001,5.59578 8.17588,9.75141 14.08343,13.37464 6.08122,3.72975 9.83206,8.6868 10.21882,13.50507 0.38367,4.77968 -1.70329,9.01939 -7.72189,15.68721 -4.69747,5.20419 -5.8733,7.2354 -5.86113,10.12491 0.0122,2.89262 1.70103,6.22854 4.66964,9.22379 4.80533,4.84844 12.34605,6.28777 23.43534,4.47319 2.47408,-0.40484 5.59479,-0.73757 6.93491,-0.73938 4.28551,-0.006 6.90319,2.09595 11.89251,9.54859 3.44351,5.14365 10.97396,17.75508 10.97396,18.37836 0,0.32407 -0.35145,0.55208 -0.85097,0.55208 -1.05109,0 -5.62314,-1.2438 -8.93214,-2.42994 -4.3485,-1.55875 -57.27238,-22.00526 -74.74786,-28.87795 -46.6635,-18.35162 -62.02805,-24.21246 -69.53657,-26.52489 -8.11417,-2.49895 -13.64029,-3.08522 -18.12661,-1.92306 -5.57996,1.44546 -81.72067,30.86888 -126.13245,48.74195 -21.93119,8.826 -24.67749,9.87577 -28.78116,11.00159 -3.26303,0.89521 -3.14407,0.88294 -3.14407,0.32426 z" />
  </g>
</svg>'); background-position: 16px 80%; background-repeat: no-repeat; background-size: 20px 12px; padding-left: 2.5em; } .multi-language-selector .language-option[data-lang='kotlin'], .exampleblock[data-lang=kotlin] > .content .title { background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 8 8' xmlns='http://www.w3.org/2000/svg'><linearGradient id='g' gradientUnits='userSpaceOnUse' x1='8' y1='0' x2='0' y2='8'><stop offset='0' stop-color='%23e44857'/><stop offset='.4689' stop-color='%23c711e1'/><stop offset='1' stop-color='%237f52ff'/></linearGradient><polygon fill='url(%23g)' points='8 8 0 8 0 0 8 0 4 4'/></svg>"); background-position: 17px 80%; background-repeat: no-repeat; background-size: 11px 11px; padding-left: 2.3em; } .multi-language-selector { display: block; } .multi-language-selector .language-option[data-lang='groovy'] { background-position: 20px center; padding-left: 32px; } .multi-language-selector .language-option[data-lang='kotlin'] { background-position: 30px center; padding-left: 27px; } .multi-language-selector .language-option { background-color: white; border: 1px solid #f7f7f8; border-radius: 4px 4px 0 0; cursor: pointer; display: inline-block; font-weight: normal; font-family: 'Lato', Arial, sans-serif; margin: 0; padding: 4px 20px; min-width: 130px; max-width: 320px; text-align: center; filter: grayscale(1); -webkit-filter: grayscale(1); opacity: 0.7; } .multi-language-selector .language-option.selected { background-color: #f7f7f8; color: #02303a; filter: none; -webkit-filter: none; opacity: 1; } .multi-language-text.hidden, .multi-language-selector ~ .multi-language-sample.hidden { display: none; } .multi-language-sample { border-radius: 0 0 4px 4px; } body.dark-theme { .multi-language-selector .language-option { background-color: #1f1f1f; border: 1px solid #1e1e22; } .multi-language-selector .language-option.selected { background-color: #2c2c2c; color: white; } } @media (prefers-color-scheme: dark) { .multi-language-selector .language-option { background-color: #1f1f1f; border: 1px solid #1e1e22; } .multi-language-selector .language-option.selected { background-color: #2c2c2c; color: white; } body.light-theme { .multi-language-selector .language-option { background-color: #white; border: 1px solid #f7f7f8; } .multi-language-selector .language-option.selected { background-color: #f7f7f8; color: #02303a; } } } </style><script type="text/javascript">function postProcessCodeBlocks() { // Assumptions: // 1) All siblings that are marked with class="multi-language-sample" should be grouped // 2) Only one language can be selected per domain (to allow selection to persist across all docs pages) // 3) There is exactly 1 small set of languages to choose from. This does not allow for multiple language preferences. For example, users cannot prefer both Kotlin and ZSH. // 4) Only 1 sample of each language can exist in the same collection. var GRADLE_DSLs = ["kotlin", "groovy"]; var preferredBuildScriptLanguage = initPreferredBuildScriptLanguage(); // Ensure preferred DSL is valid, defaulting to Kotlin DSL function initPreferredBuildScriptLanguage() { var lang = window.localStorage.getItem("preferred-gradle-dsl"); if (GRADLE_DSLs.indexOf(lang) === -1) { window.localStorage.setItem("preferred-gradle-dsl", "kotlin"); lang = "kotlin"; } return lang; } function capitalizeFirstLetter(string) { return string.charAt(0).toUpperCase() + string.slice(1); } function processSampleEl(sampleEl, prefLangId) { var codeEl = sampleEl.querySelector("code[data-lang]"); if (codeEl != null) { sampleEl.setAttribute("data-lang", codeEl.getAttribute("data-lang")); if (codeEl.getAttribute("data-lang") !== prefLangId) { sampleEl.classList.add("hidden"); } else { sampleEl.classList.remove("hidden"); } } } function switchSampleLanguage(languageId) { var multiLanguageSampleElements = [].slice.call( document.querySelectorAll(".multi-language-sample") ); // Array of Arrays, each top-level array representing a single collection of samples var multiLanguageSets = []; for (var i = 0; i < multiLanguageSampleElements.length; i++) { var currentCollection = [multiLanguageSampleElements[i]]; var currentSampleElement = multiLanguageSampleElements[i]; processSampleEl(currentSampleElement, languageId); while ( currentSampleElement.nextElementSibling != null && currentSampleElement.nextElementSibling.classList.contains( "multi-language-sample" ) ) { currentCollection.push(currentSampleElement.nextElementSibling); currentSampleElement = currentSampleElement.nextElementSibling; processSampleEl(currentSampleElement, languageId); i++; } multiLanguageSets.push(currentCollection); } multiLanguageSets.forEach(function (sampleCollection) { // Create selector element if not existing if ( sampleCollection.length > 1 && (sampleCollection[0].previousElementSibling == null || !sampleCollection[0].previousElementSibling.classList.contains( "multi-language-selector" )) ) { var languageSelectorFragment = document.createDocumentFragment(); var multiLanguageSelectorElement = document.createElement("div"); multiLanguageSelectorElement.classList.add("multi-language-selector"); languageSelectorFragment.appendChild(multiLanguageSelectorElement); sampleCollection.forEach(function (sampleEl) { var optionEl = document.createElement("code"); var sampleLanguage = sampleEl.getAttribute("data-lang"); optionEl.setAttribute("data-lang", sampleLanguage); optionEl.setAttribute("role", "button"); optionEl.classList.add("language-option"); optionEl.innerText = capitalizeFirstLetter(sampleLanguage); optionEl.addEventListener( "click", function updatePreferredLanguage(evt) { var preferredLanguageId = optionEl.getAttribute("data-lang"); window.localStorage.setItem( "preferred-gradle-dsl", preferredLanguageId ); // Record how far down the page the clicked element is before switching all samples var beforeOffset = evt.target.offsetTop; switchSampleLanguage(preferredLanguageId); // Scroll the window to account for content height differences between different sample languages window.scrollBy(0, evt.target.offsetTop - beforeOffset); } ); multiLanguageSelectorElement.appendChild(optionEl); }); sampleCollection[0].parentNode.insertBefore( languageSelectorFragment, sampleCollection[0] ); } }); [].slice .call( document.querySelectorAll(".multi-language-selector .language-option") ) .forEach(function (optionEl) { if (optionEl.getAttribute("data-lang") === languageId) { optionEl.classList.add("selected"); } else { optionEl.classList.remove("selected"); } }); [].slice .call(document.querySelectorAll(".multi-language-text")) .forEach(function (el) { if (!el.classList.contains("lang-" + languageId)) { el.classList.add("hidden"); } else { el.classList.remove("hidden"); } }); } switchSampleLanguage(preferredBuildScriptLanguage); } document.addEventListener("DOMContentLoaded", function () { postProcessCodeBlocks(); }); </script>      <style type="text/css"> cloudflare-app[app="cookiless"] cookiless-div { font-family: "Lato","Helvetica Neue",Arial,sans-serif; font-weight: 300; background-color: #02303A !important; opacity: 1 !important; } cloudflare-app[app="cookiless"] cookiless-div .iAccept { font-weight: 400; } @media (max-width: 1023px) { .notification { display: none; } } @media (min-width: 1024px) { cloudflare-app[app="cookiless"] { position: fixed !important; width: 400px !important; left: auto !important; right: 0 !important; bottom: 0 !important; } /* Overrides for banner */ .notification { height: 44px; line-height: 44px; vertical-align: middle; background-color: #02303A; text-align: center; color: white; z-index: 1; } .notification a { color: white; text-decoration: underline; } .notification ~ .main-content #header #toc, .notification ~ .main-content .toc { top: 98px; } } </style>  <script src="/build-tool.js" type="text/javascript" defer></script>  <script> (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-WRTQKGT'); </script>   <script type="text/javascript" defer> window.siteDecorateVersion = "8.11.1"; </script>  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@algolia/autocomplete-theme-classic"> <script src="https://cdn.jsdelivr.net/npm/algoliasearch@4.23.3/dist/algoliasearch-lite.umd.js"></script> <script src="https://cdn.jsdelivr.net/npm/instantsearch.js@4.69.0/dist/instantsearch.production.min.js"></script> <script src="https://cdn.jsdelivr.net/npm/@algolia/autocomplete-js"></script> <script src="/build-tool-search.js" type="text/javascript" defer></script> <link rel="stylesheet" href="/build-tool-search.css">  <link rel="stylesheet" href="/build-tool-rating.css"> <script src="/build-tool-rating.js" type="text/javascript" defer></script>  <link rel="stylesheet" href="/build-tool-banner.css"> <script src="/build-tool-banner.js" type="text/javascript" defer></script>  <link rel="canonical" href="https://docs.gradle.org/current/userguide/incremental_build.html" /> <script type="application/ld+json"> { "@context": "http://schema.org", "@type": "WebPage", "name": "Gradle Documentation", "url": "https://docs.gradle.org/current/userguide/incremental_build.html" } </script> <meta name="google-site-verification" content="kCnBfMu0lbnMpfg3t1-ZgJHbSOSYRSquWsxQ4HgqLkA" /></head> <body id="incremental_build" class="book"> <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-WRTQKGT" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>  <div class="layout"> <header class="site-layout__header site-header" itemscope="itemscope" itemtype="https://schema.org/WPHeader"> <nav class="site-header__navigation" itemscope="itemscope" itemtype="https://schema.org/SiteNavigationElement"> <div class="site-header__navigation-header"> <a target="_top" class="logo" href="https://docs.gradle.org" title="Gradle Docs"> <svg width="139px" height="43px" viewBox="0 0 278 86" version="1.1" xmlns="http://www.w3.org/2000/svg"> <title>Gradle</title> <path class="cls-1" d="M155,56.32V70.27a18.32,18.32,0,0,1-5.59,2.83,21.82,21.82,0,0,1-6.36.89,21.08,21.08,0,0,1-7.64-1.31A17.12,17.12,0,0,1,129.59,69a16.14,16.14,0,0,1-3.73-5.58,18.78,18.78,0,0,1-1.31-7.08,19.58,19.58,0,0,1,1.26-7.14A15.68,15.68,0,0,1,135,40a20.39,20.39,0,0,1,7.45-1.29,22,22,0,0,1,3.92.33,20.43,20.43,0,0,1,3.39.92,15.16,15.16,0,0,1,2.85,1.42A17.3,17.3,0,0,1,155,43.25l-1.84,2.91a1.72,1.72,0,0,1-1.12.84,2,2,0,0,1-1.5-.34L149,45.75a10.49,10.49,0,0,0-1.75-.79,14.33,14.33,0,0,0-2.17-.54,15.29,15.29,0,0,0-2.78-.22,11.91,11.91,0,0,0-4.61.86,9.66,9.66,0,0,0-3.52,2.46,10.9,10.9,0,0,0-2.24,3.84,14.88,14.88,0,0,0-.79,5,15.23,15.23,0,0,0,.85,5.28,11.06,11.06,0,0,0,2.38,3.94A10.15,10.15,0,0,0,138.05,68a14.28,14.28,0,0,0,8.25.44,17.1,17.1,0,0,0,2.94-1.09V61.14h-4.35a1.3,1.3,0,0,1-1-.35,1.15,1.15,0,0,1-.35-.85V56.32Zm10.47-2.93a10.53,10.53,0,0,1,2.72-3.45,5.77,5.77,0,0,1,3.72-1.25,4.5,4.5,0,0,1,2.72.74l-.38,4.41a1.18,1.18,0,0,1-.34.61,1,1,0,0,1-.61.18,6.76,6.76,0,0,1-1.06-.12,8.22,8.22,0,0,0-1.38-.12,5,5,0,0,0-1.74.28,4.37,4.37,0,0,0-1.37.83,5.55,5.55,0,0,0-1.07,1.3,12.26,12.26,0,0,0-.87,1.74V73.61H160V49.14h3.45a1.94,1.94,0,0,1,1.27.32,1.9,1.9,0,0,1,.48,1.16Zm11.36-.84A14.49,14.49,0,0,1,187,48.69a9.92,9.92,0,0,1,3.84.7,8.06,8.06,0,0,1,2.86,2,8.38,8.38,0,0,1,1.78,3,11.64,11.64,0,0,1,.61,3.82V73.61h-2.68a2.64,2.64,0,0,1-1.28-.25,1.72,1.72,0,0,1-.72-1l-.52-1.77a20.25,20.25,0,0,1-1.82,1.47,10.86,10.86,0,0,1-1.83,1.06,10.36,10.36,0,0,1-2,.66,12,12,0,0,1-2.4.22,9.64,9.64,0,0,1-2.86-.41,6.28,6.28,0,0,1-2.27-1.26,5.6,5.6,0,0,1-1.48-2.07,7.38,7.38,0,0,1-.52-2.89,5.7,5.7,0,0,1,.31-1.85,5.3,5.3,0,0,1,1-1.75,8.25,8.25,0,0,1,1.83-1.57,11.17,11.17,0,0,1,2.75-1.29,23.28,23.28,0,0,1,3.81-.9,36.77,36.77,0,0,1,5-.41V58.16a5.35,5.35,0,0,0-1.05-3.64,3.83,3.83,0,0,0-3-1.18,7.3,7.3,0,0,0-2.38.33,9.39,9.39,0,0,0-1.65.75l-1.3.75a2.52,2.52,0,0,1-1.3.34,1.7,1.7,0,0,1-1.05-.32,2.61,2.61,0,0,1-.69-.76Zm13.5,10.61a31.66,31.66,0,0,0-4.3.45,11,11,0,0,0-2.79.82,3.57,3.57,0,0,0-1.5,1.17,2.89,2.89,0,0,0,.47,3.67,3.93,3.93,0,0,0,2.39.67,7,7,0,0,0,3.14-.66,9.52,9.52,0,0,0,2.59-2Zm32.53-25V73.61h-3.6a1.39,1.39,0,0,1-1.48-1.07l-.5-2.36a12.4,12.4,0,0,1-3.4,2.74,9.17,9.17,0,0,1-4.47,1,7.95,7.95,0,0,1-6.55-3.26A11.61,11.61,0,0,1,201,66.79a19.71,19.71,0,0,1-.66-5.34,16.77,16.77,0,0,1,.74-5.06,12.21,12.21,0,0,1,2.13-4,9.88,9.88,0,0,1,3.31-2.69,9.64,9.64,0,0,1,4.34-1,8.63,8.63,0,0,1,3.51.64,9,9,0,0,1,2.6,1.74V38.17ZM217,55.39a5.94,5.94,0,0,0-2.18-1.72,6.54,6.54,0,0,0-2.54-.5,5.68,5.68,0,0,0-2.41.5A4.87,4.87,0,0,0,208,55.19a7.19,7.19,0,0,0-1.17,2.57,14.83,14.83,0,0,0-.4,3.69,16.34,16.34,0,0,0,.34,3.63,7.14,7.14,0,0,0,1,2.44,3.79,3.79,0,0,0,1.58,1.36,5,5,0,0,0,2.07.41,6,6,0,0,0,3.13-.76A9.19,9.19,0,0,0,217,66.36Zm17.67-17.22V73.61h-5.89V38.17ZM245.1,62.11a11.37,11.37,0,0,0,.67,3.26,6.54,6.54,0,0,0,1.38,2.27,5.39,5.39,0,0,0,2,1.33,7.26,7.26,0,0,0,2.61.44,8.21,8.21,0,0,0,2.47-.33,11.51,11.51,0,0,0,1.81-.74c.52-.27,1-.52,1.36-.74a2.31,2.31,0,0,1,1.13-.33,1.21,1.21,0,0,1,1.1.55L261.36,70a9.45,9.45,0,0,1-2.19,1.92,12.18,12.18,0,0,1-2.54,1.24,14,14,0,0,1-2.7.66,18.78,18.78,0,0,1-2.65.19,12.93,12.93,0,0,1-4.75-.85,10.65,10.65,0,0,1-3.82-2.5,11.8,11.8,0,0,1-2.55-4.1,15.9,15.9,0,0,1-.93-5.67,13.55,13.55,0,0,1,.81-4.71,11.34,11.34,0,0,1,2.33-3.84,11,11,0,0,1,3.69-2.59,12.31,12.31,0,0,1,4.93-1,11.86,11.86,0,0,1,4.27.74,9.25,9.25,0,0,1,3.36,2.16,9.84,9.84,0,0,1,2.21,3.48,13,13,0,0,1,.8,4.71,3.82,3.82,0,0,1-.29,1.8,1.19,1.19,0,0,1-1.1.46Zm11.23-3.55A7.28,7.28,0,0,0,256,56.4a5.16,5.16,0,0,0-1-1.77,4.44,4.44,0,0,0-1.63-1.21,5.68,5.68,0,0,0-2.3-.44,5.46,5.46,0,0,0-4,1.45,7.13,7.13,0,0,0-1.87,4.13ZM112.26,14a13.72,13.72,0,0,0-19.08-.32,1.27,1.27,0,0,0-.41.93,1.31,1.31,0,0,0,.38.95l1.73,1.73a1.31,1.31,0,0,0,1.71.12,7.78,7.78,0,0,1,4.71-1.57,7.87,7.87,0,0,1,5.57,13.43C96,40.2,81.41,9.66,48.4,25.37a4.48,4.48,0,0,0-2,6.29l5.66,9.79a4.49,4.49,0,0,0,6.07,1.67l.14-.08-.11.08,2.51-1.41a57.72,57.72,0,0,0,7.91-5.89,1.37,1.37,0,0,1,1.8-.06h0a1.29,1.29,0,0,1,0,2A59.79,59.79,0,0,1,62.11,44l-.09.05-2.51,1.4a7,7,0,0,1-3.47.91,7.19,7.19,0,0,1-6.23-3.57l-5.36-9.24C34.17,40.81,27.93,54.8,31.28,72.5a1.31,1.31,0,0,0,1.29,1.06h6.09A1.3,1.3,0,0,0,40,72.42a8.94,8.94,0,0,1,17.73,0A1.3,1.3,0,0,0,59,73.56h5.94a1.31,1.31,0,0,0,1.3-1.14,8.93,8.93,0,0,1,17.72,0,1.3,1.3,0,0,0,1.29,1.14h5.87a1.3,1.3,0,0,0,1.3-1.28c.14-8.28,2.37-17.79,8.74-22.55C123.15,33.25,117.36,19.12,112.26,14ZM89.79,38.92l-4.2-2.11h0a2.64,2.64,0,1,1,4.2,2.12Z"/> </svg> </a> <div class="site-header__doc-type sr-only">User Manual</div> <div class="site-header-version"></div> <button type="button" aria-label="Navigation Menu" class="site-header__navigation-button hamburger"> <span class="hamburger__bar"></span> <span class="hamburger__bar"></span> <span class="hamburger__bar"></span> </button> </div> <div class="site-header__navigation-collapsible site-header__navigation-collapsible--collapse"> <ul class="site-header__navigation-items"> <li id="theme-toggle" class="site-header__navigation-item"> <a class="site-header__navigation-link theme-toggle" title="Theme"> <svg width="24" height="24" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"> <title>Theme</title> <path d="m12 22c5.5228475 0 10-4.4771525 10-10s-4.4771525-10-10-10-10 4.4771525-10 10 4.4771525 10 10 10zm0-1.5v-17c4.6944204 0 8.5 3.80557963 8.5 8.5 0 4.6944204-3.8055796 8.5-8.5 8.5z"/> </svg> </a> <script type="text/javascript"> const btn = document.querySelector(".theme-toggle"); const prefersDarkScheme = window.matchMedia("(prefers-color-scheme: dark)"); const currentTheme = localStorage.getItem("theme"); if (currentTheme == "dark") { document.body.classList.toggle("dark-theme"); } else if (currentTheme == "light") { document.body.classList.toggle("light-theme"); } btn.addEventListener("click", function () { if (prefersDarkScheme.matches) { document.body.classList.toggle("light-theme"); var theme = document.body.classList.contains("light-theme")? "light" : "dark"; } else { document.body.classList.toggle("dark-theme"); var theme = document.body.classList.contains("dark-theme")? "dark" : "light"; } localStorage.setItem("theme", theme); }); </script> </li> <li class="site-header__navigation-item site-header__navigation-submenu-section" tabindex="0"> <span class="site-header__navigation-link"> Community </span> <div class="site-header__navigation-submenu"> <div class="site-header__navigation-submenu-item" itemprop="name"> <a target="_top" class="site-header__navigation-submenu-item-link" href="https://gradle.org/" itemprop="url"> <span class="site-header__navigation-submenu-item-link-text">Community Home</span> </a> </div> <div class="site-header__navigation-submenu-item" itemprop="name"> <a target="_top" class="site-header__navigation-submenu-item-link" href="https://discuss.gradle.org/" itemprop="url"> <span class="site-header__navigation-submenu-item-link-text">Community Forums</span> </a> </div> <div class="site-header__navigation-submenu-item" itemprop="name"> <a target="_top" class="site-header__navigation-submenu-item-link" href="https://plugins.gradle.org" itemprop="url"> <span class="site-header__navigation-submenu-item-link-text">Community Plugins</span> </a> </div> </div> </li> <li class="site-header__navigation-item" itemprop="name"> <a target="_top" class="site-header__navigation-link" href="https://dpeuniversity.gradle.com/" itemprop="url">DPE University</a> </li> <li class="site-header__navigation-item" itemprop="name"> <a target="_top" class="site-header__navigation-link" href="https://gradle.org/training/" itemprop="url">Events</a> </li> <li class="site-header__navigation-item site-header__navigation-submenu-section" tabindex="0"> <span class="site-header__navigation-link"> News </span> <div class="site-header__navigation-submenu"> <div class="site-header__navigation-submenu-item" itemprop="name"> <a class="site-header__navigation-submenu-item-link" href="https://newsletter.gradle.org" itemprop="url"> <span class="site-header__navigation-submenu-item-link-text">Newsletter</span> </a> </div> <div class="site-header__navigation-submenu-item" itemprop="name"> <a class="site-header__navigation-submenu-item-link" href="https://blog.gradle.org" itemprop="url"> <span class="site-header__navigation-submenu-item-link-text">Blog</span> </a> </div> <div class="site-header__navigation-submenu-item"> <a class="site-header__navigation-submenu-item-link" href="https://twitter.com/gradle"> <span class="site-header__navigation-submenu-item-link-text">Twitter</span> </a> </div> </div> </li> <li class="site-header__navigation-item" itemprop="name"> <a target="_top" class="site-header__navigation-link" href="https://gradle.com/develocity" itemprop="url">Develocity</a> </li> <li class="site-header__navigation-item"> <a class="site-header__navigation-link" title="Gradle on GitHub" href="https://github.com/gradle/gradle"> <svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"> <title>Github</title> <path d="M10 0C4.477 0 0 4.477 0 10c0 4.418 2.865 8.166 6.839 9.489.5.092.682-.217.682-.482 0-.237-.008-.866-.013-1.7-2.782.603-3.369-1.342-3.369-1.342-.454-1.155-1.11-1.462-1.11-1.462-.908-.62.069-.608.069-.608 1.003.07 1.531 1.03 1.531 1.03.892 1.529 2.341 1.087 2.91.831.092-.646.35-1.086.636-1.336-2.22-.253-4.555-1.11-4.555-4.943 0-1.091.39-1.984 1.029-2.683-.103-.253-.446-1.27.098-2.647 0 0 .84-.268 2.75 1.026A9.578 9.578 0 0 1 10 4.836c.85.004 1.705.114 2.504.337 1.909-1.294 2.747-1.026 2.747-1.026.546 1.377.203 2.394.1 2.647.64.699 1.028 1.592 1.028 2.683 0 3.842-2.339 4.687-4.566 4.935.359.309.678.919.678 1.852 0 1.336-.012 2.415-.012 2.743 0 .267.18.579.688.481C17.137 18.163 20 14.418 20 10c0-5.523-4.478-10-10-10" fill-rule="evenodd";/> </svg> </a> </li> </ul> </div> </nav> </header> <main class="main-content">  <nav class="docs-navigation"> <div class="search-container"></div> <h3 id="overview">Overview</h3> <ul> <li><a href="../userguide/userguide.html">What is Gradle?</a></li> <li><a href="../userguide/quick_start.html">Quick Start</a></li> </ul> <h3 id="what-is-new">Releases</h3> <ul> <li><a href="https://gradle.org/releases/">All Releases</a></li> <li><a href="../release-notes.html">Release Notes</a></li> <li><a href="../userguide/installation.html">Installing Gradle</a></li> <li><a class="nav-dropdown" data-toggle="collapse" href="#upgrading-gradle" aria-expanded="false" aria-controls="upgrading-gradle">Upgrading Gradle</a> <ul id="upgrading-gradle"> <li><a href="../userguide/upgrading_version_8.html">version 8.X to latest</a></li> <li><a href="../userguide/upgrading_version_7.html">version 7.X to 8.0</a></li> <li><a href="../userguide/upgrading_version_6.html">version 6.X to 7.0</a></li> <li><a href="../userguide/upgrading_version_5.html">version 5.X to 6.0</a></li> <li><a href="../userguide/upgrading_version_4.html">version 4.X to 5.0</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#migrating-to-gradle" aria-expanded="false" aria-controls="migrating-to-gradle">Migrating to Gradle</a> <ul id="migrating-to-gradle"> <li><a href="../userguide/migrating_from_maven.html">from Maven</a></li> <li><a href="../userguide/migrating_from_ant.html">from Ant</a></li> </ul> </li> <li><a href="../userguide/troubleshooting.html">Troubleshooting</a></li> <li><a href="../userguide/compatibility.html">Compatibility Notes</a></li> <li><a href="../userguide/feature_lifecycle.html">Gradle's Feature Lifecycle</a></li> </ul> <h3 id="running-gradle-builds">Running Gradle Builds</h3> <ul> <li><a href="../userguide/getting_started_eng.html">Getting Started</a></li> <li><a class="nav-dropdown" data-toggle="collapse" href="#running-introduction" aria-expanded="false" aria-controls="introduction">Core Concepts</a> <ul id="running-introduction"> <li><a href="../userguide/gradle_basics.html">1. Gradle Basics</a></li> <li><a href="../userguide/gradle_wrapper_basics.html">2. Gradle Wrapper Basics</a></li> <li><a href="../userguide/command_line_interface_basics.html">3. Command-Line Interface Basics</a></li> <li><a href="../userguide/settings_file_basics.html">4. Settings File Basics</a></li> <li><a href="../userguide/build_file_basics.html">5. Build File Basics</a></li> <li><a href="../userguide/dependency_management_basics.html">6. Dependency Management Basics</a></li> <li><a href="../userguide/task_basics.html">7. Task Basics</a></li> <li><a href="../userguide/plugin_basics.html">8. Plugins Basics</a></li> <li><a href="../userguide/gradle_optimizations.html">9. Incremental Builds + Caching</a></li> <li><a href="../userguide/build_scans.html">10. Build Scans</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" aria-expanded="false">Tutorial</a> <ul id="running-tutorial"> <li><a href="../userguide/part1_gradle_init.html">1. Initializing the Project</a></li> <li><a href="../userguide/part2_gradle_tasks.html">2. Running Tasks</a></li> <li><a href="../userguide/part3_gradle_dep_man.html">3. Understanding Dependencies</a></li> <li><a href="../userguide/part4_gradle_plugins.html">4. Applying Plugins</a></li> <li><a href="../userguide/part5_gradle_inc_builds.html">5. Exploring Incremental Builds</a></li> <li><a href="../userguide/part6_gradle_caching.html">6. Enabling the Build Cache</a></li> <li><a href="../userguide/part7_gradle_refs.html">7. Using Reference Materials</a></li> </ul> </li> <li><a href="../userguide/gradle_ides.html">Gradle in the IDE</a></li> <li><a href="../userguide/continuous_builds.html">Continuous Build</a></li> </ul> <h3 id="authoring-gradle-builds">Authoring Gradle Builds</h3> <ul> <li><a href="../userguide/getting_started_dev.html">Getting Started</a></li> <li><a class="nav-dropdown" data-toggle="collapse" href="#learning-the-basics" aria-expanded="false" aria-controls="learning-the-basics">Learning the Basics</a> <ul id="authoring-introduction"> <li><a href="../userguide/gradle_directories.html">1. Gradle Directories</a></li> <li><a href="../userguide/intro_multi_project_builds.html">2. Multi-Project Builds</a></li> <li><a href="../userguide/build_lifecycle.html">3. Gradle Build Lifecycle</a></li> <li><a href="../userguide/writing_settings_files.html">4. Writing Settings Files</a></li> <li><a href="../userguide/writing_build_scripts.html">5. Writing Build Scripts</a></li> <li><a href="../userguide/tutorial_using_tasks.html">6. Using Tasks</a></li> <li><a href="../userguide/writing_tasks.html">7. Writing Tasks</a></li> <li><a href="../userguide/plugins.html">8. Using Plugins</a></li> <li><a href="../userguide/writing_plugins.html">9. Writing Plugins</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" aria-expanded="false">Tutorial</a> <ul id="authoring-tutorial"> <li><a href="../userguide/partr1_gradle_init.html">1. Initializing the Project</a></li> <li><a href="../userguide/partr2_build_lifecycle.html">2. Understanding the Build Lifecycle</a></li> <li><a href="../userguide/partr3_multi_project_builds.html">3. Multi-Project Builds</a></li> <li><a href="../userguide/partr4_settings_file.html">4. Writing the Settings File</a></li> <li><a href="../userguide/partr5_build_scripts.html">5. Writing a Build Script</a></li> <li><a href="../userguide/partr6_writing_tasks.html">6. Writing Tasks</a></li> <li><a href="../userguide/partr7_writing_plugins.html">7. Writing Plugins</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#authoring-multi-project-builds" aria-expanded="false" aria-controls="authoring-multi-project-builds">Structuring Builds</a> <ul id="authoring-multi-project-builds"> <li><a href="../userguide/multi_project_builds.html">Structuring Projects with Gradle</a></li> <li><a href="../userguide/declaring_dependencies_between_subprojects.html">Declaring Dependencies between Subprojects</a></li> <li><a href="../userguide/sharing_build_logic_between_subprojects.html">Sharing Build Logic between Subprojects</a></li> <li><a href="../userguide/composite_builds.html">Composite Builds</a></li> <li><a href="../userguide/multi_project_configuration_and_execution.html">Configuration on Demand</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#developing-tasks" aria-expanded="false" aria-controls="developing-tasks">Developing Tasks</a> <ul id="developing-tasks"> <li><a href="../userguide/more_about_tasks.html">Understanding Tasks</a></li> <li><a href="../userguide/controlling_task_execution.html">Controlling Task Execution</a></li> <li><a href="../userguide/organizing_tasks.html">Organizing Tasks</a></li> <li><a href="../userguide/implementing_custom_tasks.html">Implementing Custom Tasks</a></li> <li><a href="../userguide/lazy_configuration.html">Configuring Tasks Lazily</a></li> <li><a href="../userguide/worker_api.html">Developing Parallel Tasks</a></li> <li><a href="../userguide/custom_tasks.html">Developing Advanced Tasks</a></li> <li><a href="../userguide/build_services.html">Using Shared Build Services</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#developing-plugins" aria-expanded="false" aria-controls="developing-plugins">Developing Plugins</a> <ul id="developing-plugins"> <li><a href="../userguide/custom_plugins.html">Understanding Plugins</a></li> <li><a href="../userguide/implementing_gradle_plugins.html">Understanding Implementation Options</a></li> <li><a href="../userguide/implementing_gradle_plugins_precompiled.html">Implementing Pre-compiled Script Plugins</a></li> <li><a href="../userguide/implementing_gradle_plugins_binary.html">Implementing Binary Plugins</a></li> <li><a href="../userguide/testing_gradle_plugins.html">Testing Plugins</a></li> <li><a href="../userguide/publishing_gradle_plugins.html">Publishing Plugins</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#gradle-properties" aria-expanded="false" aria-controls="gradle-properties">Understanding Gradle Types</a> <ul id="gradle-properties-topics"> <li><a href="../userguide/properties_providers.html">Understanding Properties and Providers</a></li> <li><a href="../userguide/collections.html">Understanding Collections</a></li> <li><a href="../userguide/service_injection.html">Understanding Services and Service Injection</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#other-developing-topics" aria-expanded="false" aria-controls="other-developing-topics">Other Topics</a> <ul id="other-developing-topics"> <li><a href="../userguide/working_with_files.html">Working with Files</a></li> <li><a href="../userguide/init_scripts.html">Initialization Scripts</a></li> <li><a href="../userguide/dataflow_actions.html">Dataflow Actions</a></li> <li><a href="../userguide/test_kit.html">Testing with TestKit</a></li> <li><a href="../userguide/ant.html">Using Ant from Gradle</a></li> </ul> </li> <li><a href="../userguide/directory_layout.html">Gradle-managed Directories</a></li> <li><a href="../userguide/build_environment.html">Configuring the Build Environment</a></li> <li><a href="../userguide/logging.html">Logging with Gradle</a></li> </ul> <h3 id="managing-dependencies">Dependency Management</h3> <ul> <li><a href="../userguide/getting_started_dep_man.html">Getting Started</a></li> <li><a class="nav-dropdown" data-toggle="collapse" href="#learning-the-basics-dependency-management" aria-expanded="false" aria-controls="learning-the-basics-dependency-management">Learning the Basics</a> <ul id="learning-the-basics-dependency-management"> <li><a href="../userguide/declaring_dependencies.html">1. Declaring Dependencies</a></li> <li><a href="../userguide/dependency_configurations.html">2. Dependency Configurations</a></li> <li><a href="../userguide/declaring_repositories.html">3. Declaring Repositories</a></li> <li><a href="../userguide/centralizing_dependencies.html">4. Centralizing Dependencies</a></li> <li><a href="../userguide/dependency_constraints_conflicts.html">5. Dependency Constraints and Conflict Resolution</a></li> <li><a href="../userguide/dependency_resolution.html">6. Dependency Resolution</a></li> <li><a href="../userguide/variant_aware_resolution.html">7. Variant Aware Dependency Resolution</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#declaring-dependencies" aria-expanded="false" aria-controls="declaring-dependencies">Declaring Dependencies</a> <ul id="declaring-dependencies"> <li><a href="../userguide/declaring_dependencies_basics.html">Declaring Dependencies Basics</a></li> <li><a href="../userguide/viewing_debugging_dependencies.html">Viewing Dependencies</a></li> <li><a href="../userguide/dependency_versions.html">Declaring Versions and Ranges</a></li> <li><a href="../userguide/dependency_constraints.html">Declaring Dependency Constraints</a></li> <li><a href="../userguide/declaring_configurations.html">Creating Dependency Configurations</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#declaring-repositories" aria-expanded="false" aria-controls="declaring-repositories">Declaring Repositories</a> <ul id="declaring-repositories"> <li><a href="../userguide/declaring_repositories_basics.html">Declaring Repositories Basics</a></li> <li><a href="../userguide/centralizing_repositories.html">Centralizing Repository Declarations</a></li> <li><a href="../userguide/supported_repository_types.html">Repository Types</a></li> <li><a href="../userguide/supported_metadata_formats.html">Metadata Formats</a></li> <li><a href="../userguide/supported_repository_protocols.html">Supported Protocols</a></li> <li><a href="../userguide/filtering_repository_content.html">Filtering Repository Content</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#centralizing-dependencies" aria-expanded="false" aria-controls="centralizing-dependencies">Centralizing Dependencies</a> <ul id="centralizing-dependencies"> <li><a href="../userguide/platforms.html">Creating Platforms</a></li> <li><a href="../userguide/version_catalogs.html">Creating Version Catalogs</a></li> <li><a href="../userguide/centralizing_catalog_platform.html">Using Catalogs with Platforms</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#dependency-management" aria-expanded="false" aria-controls="dependency-management">Managing Dependencies</a> <ul id="dependency-management"> <li><a href="../userguide/dependency_locking.html">Locking Versions</a></li> <li><a href="../userguide/resolution_rules.html">Using Resolution Rules</a></li> <li><a href="../userguide/component_metadata_rules.html">Modifying Dependency Metadata</a></li> <li><a href="../userguide/dependency_caching.html">Caching Dependencies</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#understanding_dep_res" aria-expanded="false" aria-controls="understanding_dep_res">Understanding Dependency Resolution</a> <ul id="understanding_dep_res"> <li><a href="../userguide/variant_model.html">Understanding The Model</a></li> <li><a href="../userguide/component_capabilities.html">Capabilities</a></li> <li><a href="../userguide/variant_attributes.html">Variants and Attributes</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#dependency-resolution" aria-expanded="false" aria-controls="dependency-resolution">Controlling Dependency Resolution</a> <ul id="dependency-resolution"> <li><a href="../userguide/dependency_resolution_basics.html">Dependency Resolution Basics</a></li> <li><a href="../userguide/dependency_graph_resolution.html">Graph Resolution</a></li> <li><a href="../userguide/artifact_resolution.html">Artifact Resolution</a></li> <li><a href="../userguide/artifact_transforms.html">Artifact Transforms</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#publishing" aria-expanded="false" aria-controls="publishing">Publishing Libraries</a> <ul id="publishing"> <li><a href="../userguide/publishing_setup.html">Setting up Publishing</a></li> <li><a href="../userguide/publishing_gradle_module_metadata.html">Understanding Gradle Module Metadata</a></li> <li><a href="../userguide/publishing_signing.html">Signing Artifacts</a></li> <li><a href="../userguide/publishing_customization.html">Customizing Publishing</a></li> <li><a href="../userguide/publishing_maven.html">Maven Publish Plugin</a></li> <li><a href="../userguide/publishing_ivy.html">Ivy Publish Plugin</a></li> </ul> </li> <li><a class="nav-dropdown" data-toggle="collapse" href="#other" aria-expanded="false" aria-controls="other">Other Topics</a> <ul id="other"> <li><a href="../userguide/dependency_verification.html">Verifying Dependencies</a></li> <li><a href="../userguide/dependency_version_alignment.html">Aligning Dependencies</a></li> <li><a href="../userguide/feature_variants.html">Modeling Feature Variants and Optional Dependencies</a></li> </ul> </li> </ul> <h3 id="authoring-gradle-builds-java">Authoring JVM Builds</h3> <ul> <li><a href="../userguide/building_java_projects.html">Building Java & JVM projects</a></li> <li><a href="../userguide/java_testing.html">Testing Java & JVM projects</a></li> <li><a class="nav-dropdown" data-toggle="collapse" href="#java-toolchains" aria-expanded="false" aria-controls="java-toolchains">Java Toolchains</a> <ul id="java-toolchains"> <li><a href="../userguide/toolchains.html">Toolchains for JVM projects</a></li> <li><a href="../userguide/toolchain_plugins.html">Toolchain Resolver Plugins</a></li> </ul> </li> <li><a href="../userguide/dependency_management_for_java_projects.html">Managing Dependencies</a></li> <li><a class="nav-dropdown" data-toggle="collapse" href="#jvm-plugins" aria-expanded="false" aria-controls="jvm-plugins">JVM Plugins</a> <ul id="jvm-plugins"> <li><a href="../userguide/java_library_plugin.html">Java Library Plugin</a></li> <li><a href="../userguide/application_plugin.html">Java Application Plugin</a></li> <li><a href="../userguide/java_platform_plugin.html">Java Platform Plugin</a></li> <li><a href="../userguide/groovy_plugin.html">Groovy Plugin</a></li> <li><a href="../userguide/scala_plugin.html">Scala Plugin</a></li> </ul> </li> </ul> <h3 id="optimizing-build-performance">Optimizing Build Performance</h3> <ul> <li><a href="../userguide/performance.html">Improving Performance of Gradle Builds</a></li> <li><a href="../userguide/gradle_daemon.html">Gradle Daemon</a></li> <li><a href="../userguide/file_system_watching.html">File System Watching</a></li> <li><a href="../userguide/incremental_build.html">Incremental Build</a></li> <li><a class="nav-dropdown" data-toggle="collapse" href="#build-cache" aria-expanded="false" aria-controls="optimizing-build-performance">Using the Build Cache</a> <ul id="build-cache"> <li><a href="../userguide/build_cache.html">Enabling and Configuring</a></li> <li><a href="../userguide/build_cache_use_cases.html">Why use the Build Cache?</a></li> <li><a href="../userguide/build_cache_performance.html">Understanding the Impact</a></li> <li><a href="../userguide/build_cache_concepts.html">Learning Basic Concepts</a></li> <li><a href="../userguide/caching_java_projects.html">Caching Java Project</a></li> <li><a href="../userguide/caching_android_projects.html">Caching Android Project</a></li> <li><a href="../userguide/build_cache_debugging.html">Debugging Caching Issues</a></li> <li><a href="../userguide/common_caching_problems.html">Troubleshooting</a></li> </ul> </li> <li><a href="../userguide/configuration_cache.html">Using the Configuration Cache</a></li> <li><a href="../userguide/inspect.html">Inspecting Gradle Builds</a></li> <li><a href="../userguide/config_gradle.html">Configuring Gradle</a></li> <li><a href="../userguide/project_properties.html">Project Properties</a></li> <li><a href="../userguide/networking.html">Gradle Networking</a></li> </ul> <h3 id="authoring-gradle-builds-native">Authoring C++/Swift Builds</h3> <ul> <li><a href="../userguide/building_cpp_projects.html">Building C++ projects</a></li> <li><a href="../userguide/cpp_testing.html">Testing C++ projects</a></li> <li><a href="../userguide/building_swift_projects.html">Building Swift projects</a></li> <li><a href="../userguide/swift_testing.html">Testing Swift projects</a></li> </ul> <h3 id="reference">Reference</h3> <ul> <li><a class="nav-dropdown" data-toggle="collapse" href="#gradle-api" aria-expanded="false" aria-controls="gradle-api">Gradle DSLs and API</a> <ul id="gradle-api"> <li><a href="../javadoc/index.html?overview-summary.html">Javadoc</a></li> <li><a href="../userguide/groovy_build_script_primer.html">Groovy DSL Primer</a></li> <li><a href="../dsl/index.html">Groovy DSL Reference</a></li> <li><a href="../userguide/kotlin_dsl.html">Kotlin DSL Primer</a></li> <li><a href="../kotlin-dsl/index.html" target="_blank">Kotlin DSL API</a></li> <li><a href="../userguide/migrating_from_groovy_to_kotlin_dsl.html">Groovy to Kotlin DSL Migration</a></li> <li><a href="../samples/index.html">Samples</a></li> <li><a href="../userguide/glossary.html">Glossary</a></li> </ul> </li> <li><a href="https://community.gradle.org/cookbook/">Gradle Cookbook</a></li> <li><a href="../userguide/command_line_interface.html">Command-Line Interface</a></li> <li><a href="../userguide/gradle_wrapper.html">Gradle Wrapper</a></li> <li><a href="../userguide/plugin_reference.html">Core Plugins</a></li> <li id="third-party-integration"><a href="../userguide/third_party_integration.html">Gradle & Third-party Tools</a></li> <li><a href="../userguide/userguide_single.html">User Manual Single Page</a></li> <li><a href="../userguide/userguide.pdf">User Manual PDF</a></li> </ul> </nav>  <div class="content"> <div class="chapter"> <div id="header"> <h1>Incremental build</h1> <div class="details"> <span id="revnumber">version 8.11.1</span> </div> <div id="toc" class="toc"> <div id="toctitle">Contents</div> <ul class="sectlevel1"> <li><a href="#sec:task_inputs_outputs">Task inputs and outputs</a></li> <li><a href="#sec:task_input_output_annotations">Declaring inputs and outputs via annotations</a></li> <li><a href="#sec:task_input_output_runtime_api">Declaring inputs and outputs via the runtime API</a></li> <li><a href="#sec:task_input_output_side_effects">Benefits of declaring task inputs and outputs</a></li> <li><a href="#sec:how_does_it_work">How does it work?</a></li> <li><a href="#sec:advanced_inc_build">Advanced techniques</a></li> <li><a href="#sec:stale_task_outputs">Stale task outputs</a></li> </ul> </div> </div> <div id="content"> <div id="preamble"> <div class="sectionbody"> <div class="paragraph"> <p>An important part of any build tool is the ability to avoid doing work that has already been done. Consider the process of compilation. Once your source files have been compiled, there should be no need to recompile them unless something has changed that affects the output, such as the modification of a source file or the removal of an output file. And compilation can take a significant amount of time, so skipping the step when it’s not needed saves a lot of time.</p> </div> <div class="paragraph"> <p>Gradle supports this behavior out of the box through a feature called <strong>incremental build</strong>. You have almost certainly already seen it in action. When you run a task and the task is marked with <code>UP-TO-DATE</code> in the console output, this means incremental build is at work.</p> </div> <div class="paragraph"> <p>How does an incremental build work? How can you make sure your tasks support running incrementally? Let’s take a look.</p> </div> </div> </div> <div class="sect1"> <h2 id="sec:task_inputs_outputs"><a class="anchor" href="#sec:task_inputs_outputs"></a><a class="link" href="#sec:task_inputs_outputs">Task inputs and outputs</a></h2> <div class="sectionbody"> <div class="paragraph"> <p>In the most common case, a task takes some inputs and generates some outputs. We can consider the process of Java compilation as an example of a task. The Java source files act as inputs of the task, while the generated class files, i.e. the result of the compilation, are the outputs of the task.</p> </div> <div class="imageblock"> <div class="content"> <img src="img/taskInputsOutputs.png" alt="taskInputsOutputs"> </div> <div class="title">Figure 1. Example task inputs and outputs</div> </div> <div class="paragraph"> <p>An important characteristic of an input is that it affects one or more outputs, as you can see from the previous figure. Different bytecode is generated depending on the content of the source files and the minimum version of the Java runtime you want to run the code on. That makes them task inputs. But whether compilation has 500MB or 600MB of maximum memory available, determined by the <code>memoryMaximumSize</code> property, has no impact on what bytecode gets generated. In Gradle terminology, <code>memoryMaximumSize</code> is just an internal task property.</p> </div> <div class="paragraph"> <p>As part of incremental build, Gradle tests whether any of the task inputs or outputs has changed since the last build. If they haven’t, Gradle can consider the task up to date and therefore skip executing its actions. Also note that incremental build won’t work unless a task has at least one task output, although tasks usually have at least one input as well.</p> </div> <div class="paragraph"> <p>What this means for build authors is simple: you need to tell Gradle which task properties are inputs and which are outputs. If a task property affects the output, be sure to register it as an input, otherwise the task will be considered up to date when it’s not. Conversely, don’t register properties as inputs if they don’t affect the output, otherwise the task will potentially execute when it doesn’t need to. Also be careful of non-deterministic tasks that may generate different output for exactly the same inputs: these should not be configured for incremental build as the up-to-date checks won’t work.</p> </div> <div class="paragraph"> <p>Let’s now look at how you can register task properties as inputs and outputs.</p> </div> </div> </div> <div class="sect1"> <h2 id="sec:task_input_output_annotations"><a class="anchor" href="#sec:task_input_output_annotations"></a><a class="link" href="#sec:task_input_output_annotations">Declaring inputs and outputs via annotations</a></h2> <div class="sectionbody"> <div class="paragraph"> <p>If you’re implementing a custom task as a class, then it takes just two steps to make it work with incremental build:</p> </div> <div class="olist arabic"> <ol class="arabic"> <li> <p>Create typed properties (via getter methods) for each of your task inputs and outputs</p> </li> <li> <p>Add the appropriate annotation to each of those properties</p> </li> </ol> </div> <div class="admonitionblock note"> <table> <tr> <td class="icon"> <i class="fa icon-note" title="Note"></i> </td> <td class="content"> Annotations must be placed on getters or on Groovy properties. Annotations placed on setters, or on a Java field without a corresponding annotated getter, are ignored. </td> </tr> </table> </div> <div class="paragraph"> <p>Gradle supports four main categories of inputs and outputs:</p> </div> <div class="ulist"> <ul> <li> <p>Simple values</p> <div class="paragraph"> <p>Things like strings and numbers. More generally, a simple value can have any type that implements <code>Serializable</code>.</p> </div> </li> <li> <p>Filesystem types</p> <div class="paragraph"> <p>These consist of <code>RegularFile</code>, <code>Directory</code> and the standard <code>File</code> class but also derivatives of Gradle’s <a href="../javadoc/org/gradle/api/file/FileCollection.html">FileCollection</a> type and anything else that can be passed to either the <a href="../dsl/org.gradle.api.Project.html#org.gradle.api.Project:file(java.lang.Object)">Project.file(java.lang.Object)</a> method — for single file/directory properties — or the <a href="../dsl/org.gradle.api.Project.html#org.gradle.api.Project:files(java.lang.Object[])">Project.files(java.lang.Object...)</a> method.</p> </div> </li> <li> <p>Dependency resolution results</p> <div class="paragraph"> <p>This includes the <a href="../javadoc/org/gradle/api/artifacts/result/ResolvedArtifactResult.html">ResolvedArtifactResult</a> type for artifact metadata and the <a href="../javadoc/org/gradle/api/artifacts/result/ResolvedComponentResult.html">ResolvedComponentResult</a> type for dependency graphs. Note that they are only supported wrapped in a <code>Provider</code>.</p> </div> </li> <li> <p>Nested values</p> <div class="paragraph"> <p>Custom types that don’t conform to the other two categories but have their own properties that are inputs or outputs. In effect, the task inputs or outputs are nested inside these custom types.</p> </div> </li> </ul> </div> <div class="paragraph"> <p>As an example, imagine you have a task that processes templates of varying types, such as FreeMarker, Velocity, Moustache, etc. It takes template source files and combines them with some model data to generate populated versions of the template files.</p> </div> <div class="paragraph"> <p>This task will have three inputs and one output:</p> </div> <div class="ulist"> <ul> <li> <p>Template source files</p> </li> <li> <p>Model data</p> </li> <li> <p>Template engine</p> </li> <li> <p>Where the output files are written</p> </li> </ul> </div> <div class="paragraph"> <p>When you’re writing a custom task class, it’s easy to register properties as inputs or outputs via annotations. To demonstrate, here is a skeleton task implementation with some suitable inputs and outputs, along with their annotations:</p> </div> <div id="ex-custom-task-class" class="exampleblock"> <div class="title">Example 1. <a href="#ex-custom-task-class">Custom task class</a></div> <div class="content"> <div class="listingblock"> <div class="title">buildSrc/src/main/java/org/example/ProcessTemplates.java</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="java">package org.example; import java.util.HashMap; import org.gradle.api.DefaultTask; import org.gradle.api.file.ConfigurableFileCollection; import org.gradle.api.file.DirectoryProperty; import org.gradle.api.file.FileSystemOperations; import org.gradle.api.provider.Property; import org.gradle.api.tasks.*; import javax.inject.Inject; public abstract class ProcessTemplates extends DefaultTask { @Input public abstract Property<TemplateEngineType> getTemplateEngine(); @InputFiles public abstract ConfigurableFileCollection getSourceFiles(); @Nested public abstract TemplateData getTemplateData(); @OutputDirectory public abstract DirectoryProperty getOutputDir(); @Inject public abstract FileSystemOperations getFs(); @TaskAction public void processTemplates() { // ... } }</code></pre> </div> </div> <div class="listingblock"> <div class="title">buildSrc/src/main/java/org/example/TemplateData.java</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="java">package org.example; import org.gradle.api.provider.MapProperty; import org.gradle.api.provider.Property; import org.gradle.api.tasks.Input; public abstract class TemplateData { @Input public abstract Property<String> getName(); @Input public abstract MapProperty<String, String> getVariables(); }</code></pre> </div> </div> <div class="listingblock"> <div class="title">Output of <code>gradle processTemplates</code></div> <div class="content"> <pre>> gradle processTemplates > Task :processTemplates BUILD SUCCESSFUL in 0s 3 actionable tasks: 3 up-to-date</pre> </div> </div> <div class="listingblock"> <div class="title">Output of <code>gradle processTemplates</code> (run again)</div> <div class="content"> <pre>> gradle processTemplates > Task :processTemplates UP-TO-DATE BUILD SUCCESSFUL in 0s 3 actionable tasks: 3 up-to-date</pre> </div> </div> </div> </div> <div class="paragraph"> <p>There’s plenty to talk about in this example, so let’s work through each of the input and output properties in turn:</p> </div> <div class="ulist"> <ul> <li> <p><code>templateEngine</code></p> <div class="paragraph"> <p>Represents which engine to use when processing the source templates, e.g. FreeMarker, Velocity, etc. You could implement this as a string, but in this case we have gone for a custom enum as it provides greater type information and safety. Since enums implement <code>Serializable</code> automatically, we can treat this as a simple value and use the <code>@Input</code> annotation, just as we would with a <code>String</code> property.</p> </div> </li> <li> <p><code>sourceFiles</code></p> <div class="paragraph"> <p>The source templates that the task will be processing. Single files and collections of files need their own special annotations. In this case, we’re dealing with a collection of input files and so we use the <code>@InputFiles</code> annotation. You’ll see more file-oriented annotations in a table later.</p> </div> </li> <li> <p><code>templateData</code></p> <div class="paragraph"> <p>For this example, we’re using a custom class to represent the model data. However, it does not implement <code>Serializable</code>, so we can’t use the <code>@Input</code> annotation. That’s not a problem as the properties within <code>TemplateData</code> — a string and a hash map with serializable type parameters — are serializable and can be annotated with <code>@Input</code>. We use <code>@Nested</code> on <code>templateData</code> to let Gradle know that this is a value with nested input properties.</p> </div> </li> <li> <p><code>outputDir</code></p> <div class="paragraph"> <p>The directory where the generated files go. As with input files, there are several annotations for output files and directories. A property representing a single directory requires <code>@OutputDirectory</code>. You’ll learn about the others soon.</p> </div> </li> </ul> </div> <div class="paragraph"> <p>These annotated properties mean that Gradle will skip the task if none of the source files, template engine, model data or generated files has changed since the previous time Gradle executed the task. This will often save a significant amount of time. You can learn how Gradle detects <a href="#sec:how_does_it_work">changes later</a>.</p> </div> <div class="paragraph"> <p>This example is particularly interesting because it works with collections of source files. What happens if only one source file changes? Does the task process all the source files again or just the modified one? That depends on the task implementation. If the latter, then the task itself is incremental, but that’s a different feature to the one we’re discussing here. Gradle does help task implementers with this via its <a href="custom_tasks.html#incremental_tasks">incremental task inputs</a> feature.</p> </div> <div class="paragraph"> <p>Now that you have seen some of the input and output annotations in practice, let’s take a look at all the annotations available to you and when you should use them. The table below lists the available annotations and the corresponding property type you can use with each one.</p> </div> <table id="table:incremental_build_annotations" class="tableblock frame-all grid-all stretch"> <caption class="title">Table 1. Incremental build property type annotations</caption> <colgroup> <col style="width: 33.3333%;"> <col style="width: 33.3333%;"> <col style="width: 33.3334%;"> </colgroup> <thead> <tr> <th class="tableblock halign-left valign-top">Annotation</th> <th class="tableblock halign-left valign-top">Expected property type</th> <th class="tableblock halign-left valign-top">Description</th> </tr> </thead> <tbody> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/Input.html">Input</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Any <code>Serializable</code> type or dependency resolution result types</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>A simple input value or dependency resolution results</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/InputFile.html">InputFile</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>File</code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>A single input file (not directory)</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/InputDirectory.html">InputDirectory</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>File</code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>A single input directory (not file)</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/InputFiles.html">InputFiles</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>Iterable<File></code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>An iterable of input files and directories</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/Classpath.html">Classpath</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>Iterable<File></code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>An iterable of input files and directories that represent a Java classpath. This allows the task to ignore irrelevant changes to the property, such as different names for the same files. It is similar to annotating the property <code>@PathSensitive(RELATIVE)</code> but it will ignore the names of JAR files directly added to the classpath, and it will consider changes in the order of the files as a change in the classpath. Gradle will inspect the contents of jar files on the classpath and ignore changes that do not affect the semantics of the classpath (such as file dates and entry order). See also <a href="#sec:task_input_using_classpath_annotations">Using the classpath annotations</a>.</p> </div> <div class="paragraph"> <p><strong>Note:</strong> The <code>@Classpath</code> annotation was introduced in Gradle 3.2. To stay compatible with earlier Gradle versions, classpath properties should also be annotated with <code>@InputFiles</code>.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/CompileClasspath.html">CompileClasspath</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>Iterable<File></code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>An iterable of input files and directories that represent a Java compile classpath. This allows the task to ignore irrelevant changes that do not affect the API of the classes in classpath. See also <a href="#sec:task_input_using_classpath_annotations">Using the classpath annotations</a>.</p> </div> <div class="paragraph"> <p>The following kinds of changes to the classpath will be ignored:</p> </div> <div class="ulist"> <ul> <li> <p>Changes to the path of jar or top level directories.</p> </li> <li> <p>Changes to timestamps and the order of entries in Jars.</p> </li> <li> <p>Changes to resources and Jar manifests, including adding or removing resources.</p> </li> <li> <p>Changes to private class elements, such as private fields, methods and inner classes.</p> </li> <li> <p>Changes to code, such as method bodies, static initializers and field initializers (except for constants).</p> </li> <li> <p>Changes to debug information, for example when a change to a comment affects the line numbers in class debug information.</p> </li> <li> <p>Changes to directories, including directory entries in Jars.</p> </li> </ul> </div> <div class="paragraph"> <p><strong>NOTE</strong> - The <code>@CompileClasspath</code> annotation was introduced in Gradle 3.4. To stay compatible with Gradle 3.3 and 3.2, compile classpath properties should also be annotated with <code>@Classpath</code>. For compatibility with Gradle versions before 3.2 the property should also be annotated with <code>@InputFiles</code>.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/OutputFile.html">OutputFile</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>File</code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>A single output file (not directory)</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/OutputDirectory.html">OutputDirectory</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>File</code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>A single output directory (not file)</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/OutputFiles.html">OutputFiles</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>Map<String, File></code>** or <code>Iterable<File></code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>An iterable or map of output files. Using a file tree turns <a href="build_cache.html#sec:task_output_caching">caching</a> off for the task.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/OutputDirectories.html">OutputDirectories</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>Map<String, File></code>** or <code>Iterable<File></code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>An iterable of output directories. Using a file tree turns <a href="build_cache.html#sec:task_output_caching">caching</a> off for the task.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/Destroys.html">Destroys</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>File</code> or <code>Iterable<File></code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Specifies one or more files that are removed by this task. Note that a task can define either inputs/outputs or destroyables, but not both.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/LocalState.html">LocalState</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>File</code> or <code>Iterable<File></code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Specifies one or more files that represent the local state of the task. These files are removed when the task is loaded from cache.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/Nested.html">Nested</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Any custom type</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>A custom type that may not implement <code>Serializable</code> but does have at least one field or property marked with one of the annotations in this table. It could even be another <code>@Nested</code>.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/Console.html">Console</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Any type</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Indicates that the property is neither an input nor an output. It simply affects the console output of the task in some way, such as increasing or decreasing the verbosity of the task.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/Internal.html">Internal</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Any type</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Indicates that the property is used internally but is neither an input nor an output.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/model/ReplacedBy.html">ReplacedBy</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Any type</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Indicates that the property has been replaced by another and should be ignored as an input or output.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><a id="skip-when-empty"></a><code>@<a href="../javadoc/org/gradle/api/tasks/SkipWhenEmpty.html">SkipWhenEmpty</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>File</code> or <code>Iterable<File></code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Used with <code>@InputFiles</code> or <code>@InputDirectory</code> to tell Gradle to skip the task if the corresponding files or directory are empty, along with all other input files declared with this annotation. Tasks that have been skipped due to all of their input files that were declared with this annotation being empty will result in a distinct “no source” outcome. For example, <code>NO-SOURCE</code> will be emitted in the console output.</p> </div> <div class="paragraph"> <p>Implies <code><a href="#incremental">@Incremental</a></code>.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><a id="incremental"></a><code>@<a href="../javadoc/org/gradle/work/Incremental.html">Incremental</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>Provider<FileSystemLocation></code> or <code>FileCollection</code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Used with <code>@InputFiles</code> or <code>@InputDirectory</code> to instruct Gradle to track changes to the annotated file property, so the changes can be queried via <code>@<a href="../dsl/org.gradle.work.InputChanges.html">InputChanges.getFileChanges()</a></code>. Required for <a href="custom_tasks.html#incremental_tasks">incremental tasks</a>.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/Optional.html">Optional</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Any type</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Used with any of the property type annotations listed in the <a href="../javadoc/org/gradle/api/tasks/Optional.html">Optional</a> API documentation. This annotation disables validation checks on the corresponding property. See <a href="#sec:task_input_output_validation">the section on validation</a> for more details.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/PathSensitive.html">PathSensitive</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>File</code> or <code>Iterable<File></code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><a id="inputs_path_sensitivity"></a>Used with any input file property to tell Gradle to only consider the given part of the file paths as important. For example, if a property is annotated with <code>@PathSensitive(PathSensitivity.NAME_ONLY)</code>, then moving the files around without changing their contents will not make the task out-of-date.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/api/tasks/IgnoreEmptyDirectories.html">IgnoreEmptyDirectories</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>File</code> or <code>Iterable<File></code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Used with <code>@InputFiles</code> or <code>@InputDirectory</code> to instruct Gradle to track only changes to the contents of directories and not differences in the directories themselves. For example, removing, renaming or adding an empty directory somewhere in the directory structure will not make the task out-of-date.</p> </div></div></td> </tr> <tr> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>@<a href="../javadoc/org/gradle/work/NormalizeLineEndings.html">NormalizeLineEndings</a></code></p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p><code>File</code> or <code>Iterable<File></code>*</p> </div></div></td> <td class="tableblock halign-left valign-top"><div class="content"><div class="paragraph"> <p>Used with <code>@InputFiles</code>, <code>@InputDirectory</code> or <code>@Classpath</code> to instruct Gradle to normalize line endings when calculating up-to-date checks or build cache keys. For example, switching a file between Unix line endings and Windows line endings (or vice-versa) will not make the task out-of-date.</p> </div></div></td> </tr> </tbody> </table> <div class="admonitionblock note"> <table> <tr> <td class="icon"> <i class="fa icon-note" title="Note"></i> </td> <td class="content"> <div class="paragraph"> <p><code>File</code> can be any type accepted by <a href="../dsl/org.gradle.api.Project.html#org.gradle.api.Project:file(java.lang.Object)">Project.file(java.lang.Object)</a> and <code>Iterable<File></code> can be any type accepted by <a href="../dsl/org.gradle.api.Project.html#org.gradle.api.Project:files(java.lang.Object[])">Project.files(java.lang.Object…)</a>. This includes instances of <code>Callable</code>, such as closures, allowing for lazy evaluation of the property values. Be aware that the types <code>FileCollection</code> and <code>FileTree</code> are <code>Iterable<File></code>s.</p> </div> <div class="paragraph"> <p>Similar to the above, <code>File</code> can be any type accepted by <a href="../dsl/org.gradle.api.Project.html#org.gradle.api.Project:file(java.lang.Object)">Project.file(java.lang.Object)</a>. The <code>Map</code> itself can be wrapped in <code>Callable</code>s, such as closures.</p> </div> </td> </tr> </table> </div> <div class="paragraph"> <p>Annotations are inherited from all parent types including implemented interfaces. Property type annotations override any other property type annotation declared in a parent type. This way an <code>@InputFile</code> property can be turned into an <code>@InputDirectory</code> property in a child task type.</p> </div> <div class="paragraph"> <p>Annotations on a property declared in a type override similar annotations declared by the superclass and in any implemented interfaces. Superclass annotations take precedence over annotations declared in implemented interfaces.</p> </div> <div class="paragraph"> <p>The <a href="../javadoc/org/gradle/api/tasks/Console.html">Console</a> and <a href="../javadoc/org/gradle/api/tasks/Internal.html">Internal</a> annotations in the table are special cases as they don’t declare either task inputs or task outputs. So why use them? It’s so that you can take advantage of the <a href="java_gradle_plugin.html#java_gradle_plugin">Java Gradle Plugin Development plugin</a> to help you develop and publish your own plugins. This plugin checks whether any properties of your custom task classes lack an incremental build annotation. This protects you from forgetting to add an appropriate annotation during development.</p> </div> <div class="sect2"> <h3 id="sec:task_input_using_classpath_annotations"><a class="anchor" href="#sec:task_input_using_classpath_annotations"></a><a class="link" href="#sec:task_input_using_classpath_annotations">Using the classpath annotations</a></h3> <div class="paragraph"> <p>Besides <code>@InputFiles</code>, for JVM-related tasks Gradle understands the concept of classpath inputs. Both runtime and compile classpaths are treated differently when Gradle is looking for changes.</p> </div> <div class="paragraph"> <p>As opposed to input properties annotated with <code>@<a href="../javadoc/org/gradle/api/tasks/InputFiles.html">InputFiles</a></code>, for classpath properties the order of the entries in the file collection matter. On the other hand, the names and paths of the directories and jar files on the classpath itself are ignored. Timestamps and the order of class files and resources inside jar files on a classpath are ignored, too, thus recreating a jar file with different file dates will not make the task out of date.</p> </div> <div class="paragraph"> <p>Runtime classpaths are marked with <code>@<a href="../javadoc/org/gradle/api/tasks/Classpath.html">Classpath</a></code>, and they offer further customization via <a href="#sec:configure_input_normalization">classpath normalization</a>.</p> </div> <div class="paragraph"> <p>Input properties annotated with <code>@<a href="../javadoc/org/gradle/api/tasks/CompileClasspath.html">CompileClasspath</a></code> are considered Java compile classpaths. Additionally to the aforementioned general classpath rules, compile classpaths ignore changes to everything but class files. Gradle uses the same class analysis described in <a href="java_plugin.html#sec:java_compile_avoidance">Java compile avoidance</a> to further filter changes that don’t affect the class' ABIs. This means that changes which only touch the implementation of classes do not make the task out of date.</p> </div> </div> <div class="sect2"> <h3 id="sec:task_input_nested_inputs"><a class="anchor" href="#sec:task_input_nested_inputs"></a><a class="link" href="#sec:task_input_nested_inputs">Nested inputs</a></h3> <div class="paragraph"> <p>When analyzing <code>@<a href="../javadoc/org/gradle/api/tasks/Nested.html">Nested</a></code> task properties for declared input and output sub-properties Gradle uses the type of the actual value. Hence it can discover all sub-properties declared by a runtime sub-type.</p> </div> <div class="paragraph"> <p>When adding <code>@<a href="../javadoc/org/gradle/api/tasks/Nested.html">Nested</a></code> to a <code><a href="../javadoc/org/gradle/api/provider/Provider.html">Provider</a></code>, the value of the <code>Provider</code> is treated as a nested input.</p> </div> <div class="paragraph"> <p>When adding <code>@<a href="../javadoc/org/gradle/api/tasks/Nested.html">Nested</a></code> to an iterable, each element is treated as a separate nested input. Each nested input in the iterable is assigned a name, which by default is the dollar sign followed by the index in the iterable, e.g. <code>$2</code>. If an element of the iterable implements <code><a href="../javadoc/org/gradle/api/Named.html">Named</a></code>, then the name is used as property name. The ordering of the elements in the iterable is crucial for reliable up-to-date checks and caching if not all of the elements implement <code><a href="../javadoc/org/gradle/api/Named.html">Named</a></code>. Multiple elements which have the same name are not allowed.</p> </div> <div class="paragraph"> <p>When adding <code>@<a href="../javadoc/org/gradle/api/tasks/Nested.html">Nested</a></code> to a map, then for each value a nested input is added, using the key as name.</p> </div> <div class="paragraph"> <p>The type and classpath of nested inputs is tracked, too. This ensures that changes to the implementation of a nested input causes the build to be out of date. By this it is also possible to add user provided code as an input, e.g. by annotating an <code>@<a href="../javadoc/org/gradle/api/Action.html">Action</a></code> property with <code>@<a href="../javadoc/org/gradle/api/tasks/Nested.html">Nested</a></code>. Note that any inputs to such actions should be tracked, either by annotated properties on the action or by manually registering them with the task.</p> </div> <div class="paragraph"> <p>Using nested inputs allows richer modeling and extensibility for tasks, as e.g. shown by <a href="../dsl/org.gradle.api.tasks.testing.Test.html#org.gradle.api.tasks.testing.Test:jvmArgumentProviders">Test.getJvmArgumentProviders()</a>.</p> </div> <div class="paragraph"> <p>This allows us to model the JaCoCo Java agent, thus declaring the necessary JVM arguments and providing the inputs and outputs to Gradle:</p> </div> <div class="exampleblock"> <div class="content"> <div class="listingblock"> <div class="title">JacocoAgent.java</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="java">class JacocoAgent implements CommandLineArgumentProvider { private final JacocoTaskExtension jacoco; public JacocoAgent(JacocoTaskExtension jacoco) { this.jacoco = jacoco; } @Nested @Optional public JacocoTaskExtension getJacoco() { return jacoco.isEnabled() ? jacoco : null; } @Override public Iterable<String> asArguments() { return jacoco.isEnabled() ? ImmutableList.of(jacoco.getAsJvmArg()) : Collections.<String>emptyList(); } } test.getJvmArgumentProviders().add(new JacocoAgent(extension));</code></pre> </div> </div> </div> </div> <div class="paragraph"> <p>For this to work, <code><a href="../dsl/org.gradle.testing.jacoco.plugins.JacocoTaskExtension.html">JacocoTaskExtension</a></code> needs to have the correct input and output annotations.</p> </div> <div class="paragraph"> <p>The approach works for Test JVM arguments, since <code><a href="../dsl/org.gradle.api.tasks.testing.Test.html#org.gradle.api.tasks.testing.Test:jvmArgumentProviders">Test.getJvmArgumentProviders()</a></code> is an <code>Iterable</code> annotated with <code>@<a href="../javadoc/org/gradle/api/tasks/Nested.html">Nested</a></code>.</p> </div> <div class="paragraph"> <p>There are other task types where this kind of nested inputs are available:</p> </div> <div class="ulist"> <ul> <li> <p><a href="../dsl/org.gradle.api.tasks.JavaExec.html#org.gradle.api.tasks.JavaExec:argumentProviders">JavaExec.getArgumentProviders()</a> - model e.g. custom tools</p> </li> <li> <p><a href="../dsl/org.gradle.api.tasks.JavaExec.html#org.gradle.api.tasks.JavaExec:jvmArgumentProviders">JavaExec.getJvmArgumentProviders()</a> - used for Jacoco Java agent</p> </li> <li> <p><a href="../dsl/org.gradle.api.tasks.compile.CompileOptions.html#org.gradle.api.tasks.compile.CompileOptions:compilerArgumentProviders">CompileOptions.getCompilerArgumentProviders()</a> - model e.g. annotation processors</p> </li> <li> <p><a href="../dsl/org.gradle.api.tasks.Exec.html#org.gradle.api.tasks.Exec:argumentProviders">Exec.getArgumentProviders()</a> - model e.g. custom tools</p> </li> <li> <p><a href="../dsl/org.gradle.api.tasks.compile.ForkOptions.html#org.gradle.api.tasks.compile.ForkOptions:jvmArgumentProviders">JavaCompile.getOptions().getForkOptions().getJvmArgumentProviders()</a> - model Java compiler daemon command line arguments</p> </li> <li> <p><a href="../dsl/org.gradle.api.tasks.compile.GroovyForkOptions.html#org.gradle.api.tasks.compile.GroovyForkOptions:jvmArgumentProviders">GroovyCompile.getGroovyOptions().getForkOptions().getJvmArgumentProviders()</a> - model Groovy compiler daemon command line arguments</p> </li> <li> <p><a href="../dsl/org.gradle.api.tasks.scala.ScalaForkOptions.html#org.gradle.api.tasks.scala.ScalaForkOptions:jvmArgumentProviders">ScalaCompile.getScalaOptions().getForkOptions().getJvmArgumentProviders()</a> - model Scala compiler daemon command line arguments</p> </li> </ul> </div> <div class="paragraph"> <p>In the same way, this kind of modelling is available to custom tasks.</p> </div> </div> <div class="sect2"> <h3 id="sec:task_input_validation"><a class="anchor" href="#sec:task_input_validation"></a><a class="link" href="#sec:task_input_validation">Validation at runtime</a></h3> <div class="paragraph"> <p>When executing the build Gradle checks if task types are declared with the proper annotations. It tries to identify problems where e.g. annotations are used on incompatible types, or on setters etc. Any getter not annotated with an input/output annotation is also flagged. These problems then fail the build or are turned into deprecation warnings when the task is executed.</p> </div> <div class="paragraph"> <p>Tasks that have a validation warning are executed <strong>without any optimizations</strong>. Specifically, they never can be:</p> </div> <div class="ulist"> <ul> <li> <p>up-to-date,</p> </li> <li> <p>loaded from or stored in the <a href="build_cache.html#build_cache">build cache</a>,</p> </li> <li> <p>executed in parallel with other tasks, even if <a href="performance.html#parallel_execution">parallel execution</a> is enabled,</p> </li> <li> <p>executed incrementally.</p> </li> </ul> </div> <div class="paragraph"> <p>The in-memory representation of the file system state (<em><a href="file_system_watching.html#sec:daemon_watch_fs">Virtual File System</a>)</em> is also invalidated before an invalid task is executed.</p> </div> </div> </div> </div> <div class="sect1"> <h2 id="sec:task_input_output_runtime_api"><a class="anchor" href="#sec:task_input_output_runtime_api"></a><a class="link" href="#sec:task_input_output_runtime_api">Declaring inputs and outputs via the runtime API</a></h2> <div class="sectionbody"> <div class="paragraph"> <p>Custom task classes are an easy way to bring your own build logic into the arena of incremental build, but you don’t always have that option. That’s why Gradle also provides an alternative API that can be used with any tasks, which we look at next.</p> </div> <div class="paragraph"> <p>When you don’t have access to the source for a custom task class, there is no way to add any of the annotations we covered in the previous section. Fortunately, Gradle provides a runtime API for scenarios just like that. It can also be used for ad-hoc tasks, as you’ll see next.</p> </div> <div class="sect2"> <h3 id="sec:runtime_api_for_adhoc"><a class="anchor" href="#sec:runtime_api_for_adhoc"></a><a class="link" href="#sec:runtime_api_for_adhoc">Declaring inputs and outputs of ad-hoc tasks</a></h3> <div class="paragraph"> <p>This runtime API is provided through a couple of aptly named properties that are available on every Gradle task:</p> </div> <div class="ulist"> <ul> <li> <p><a href="../dsl/org.gradle.api.Task.html#org.gradle.api.Task:inputs">Task.getInputs()</a> of type <a href="../javadoc/org/gradle/api/tasks/TaskInputs.html">TaskInputs</a></p> </li> <li> <p><a href="../dsl/org.gradle.api.Task.html#org.gradle.api.Task:outputs">Task.getOutputs()</a> of type <a href="../javadoc/org/gradle/api/tasks/TaskOutputs.html">TaskOutputs</a></p> </li> <li> <p><a href="../dsl/org.gradle.api.Task.html#org.gradle.api.Task:destroyables">Task.getDestroyables()</a> of type <a href="../javadoc/org/gradle/api/tasks/TaskDestroyables.html">TaskDestroyables</a></p> </li> </ul> </div> <div class="paragraph"> <p>These objects have methods that allow you to specify files, directories and values which constitute the task’s inputs and outputs. In fact, the runtime API has almost feature parity with the annotations.</p> </div> <div class="paragraph"> <p>It lacks equivalents for</p> </div> <div class="ulist"> <ul> <li> <p><code>@<a href="../javadoc/org/gradle/api/tasks/Nested.html">Nested</a></code></p> </li> <li> <p><code>@<a href="../javadoc/org/gradle/api/tasks/Classpath.html">Classpath</a></code></p> </li> <li> <p><code>@<a href="../javadoc/org/gradle/api/tasks/CompileClasspath.html">CompileClasspath</a></code></p> </li> <li> <p><code>@<a href="../javadoc/org/gradle/api/tasks/LocalState.html">LocalState</a></code></p> </li> <li> <p><code>@<a href="../javadoc/org/gradle/api/model/ReplacedBy.html">ReplacedBy</a></code></p> </li> <li> <p><code>@<a href="../javadoc/org/gradle/api/tasks/Internal.html">Internal</a></code></p> </li> </ul> </div> <div class="paragraph"> <p>Let’s take the template processing example from before and see how it would look as an ad-hoc task that uses the runtime API:</p> </div> <div id="ex-ad-hoc-task" class="exampleblock"> <div class="title">Example 2. <a href="#ex-ad-hoc-task">Ad-hoc task</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">tasks.register("processTemplatesAdHoc") { inputs.property("engine", TemplateEngineType.FREEMARKER) inputs.files(fileTree("src/templates")) .withPropertyName("sourceFiles") .withPathSensitivity(PathSensitivity.RELATIVE) inputs.property("templateData.name", "docs") inputs.property("templateData.variables", mapOf("year" to "2013")) outputs.dir(layout.buildDirectory.dir("genOutput2")) .withPropertyName("outputDir") doLast { // Process the templates here } }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">tasks.register('processTemplatesAdHoc') { inputs.property('engine', TemplateEngineType.FREEMARKER) inputs.files(fileTree('src/templates')) .withPropertyName('sourceFiles') .withPathSensitivity(PathSensitivity.RELATIVE) inputs.property('templateData.name', 'docs') inputs.property('templateData.variables', [year: '2013']) outputs.dir(layout.buildDirectory.dir('genOutput2')) .withPropertyName('outputDir') doLast { // Process the templates here } }</code></pre> </div> </div> </div> </div> <div class="listingblock"> <div class="title">Output of <strong><code>gradle processTemplatesAdHoc</code></strong></div> <div class="content"> <pre>> gradle processTemplatesAdHoc > Task :processTemplatesAdHoc BUILD SUCCESSFUL in 0s 3 actionable tasks: 3 executed</pre> </div> </div> </div> </div> <div class="paragraph"> <p>As before, there’s much to talk about. To begin with, you should really write a custom task class for this as it’s a non-trivial implementation that has several configuration options. In this case, there are no task properties to store the root source folder, the location of the output directory or any of the other settings. That’s deliberate to highlight the fact that the runtime API doesn’t require the task to have any state. In terms of incremental build, the above ad-hoc task will behave the same as the custom task class.</p> </div> <div class="paragraph"> <p>All the input and output definitions are done through the methods on <code>inputs</code> and <code>outputs</code>, such as <code>property()</code>, <code>files()</code>, and <code>dir()</code>. Gradle performs up-to-date checks on the argument values to determine whether the task needs to run again or not. Each method corresponds to one of the incremental build annotations, for example <code>inputs.property()</code> maps to <code>@Input</code> and <code>outputs.dir()</code> maps to <code>@OutputDirectory</code>.</p> </div> <div class="paragraph"> <p>The files that a task removes can be specified through <code>destroyables.register()</code>.</p> </div> <div id="ex-ad-hoc-task-declaring-a-destroyable" class="exampleblock"> <div class="title">Example 3. <a href="#ex-ad-hoc-task-declaring-a-destroyable">Ad-hoc task declaring a destroyable</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">tasks.register("removeTempDir") { val tmpDir = layout.projectDirectory.dir("tmpDir") destroyables.register(tmpDir) doLast { tmpDir.asFile.deleteRecursively() } }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">tasks.register('removeTempDir') { def tempDir = layout.projectDirectory.dir('tmpDir') destroyables.register(tempDir) doLast { tempDir.asFile.deleteDir() } }</code></pre> </div> </div> </div> </div> </div> </div> <div class="paragraph"> <p>One notable difference between the runtime API and the annotations is the lack of a method that corresponds directly to <code>@Nested</code>. That’s why the example uses two <code>property()</code> declarations for the template data, one for each <code>TemplateData</code> property. You should utilize the same technique when using the runtime API with nested values. Any given task can either declare destroyables or inputs/outputs, but cannot declare both.</p> </div> </div> <div class="sect2"> <h3 id="sec:runtime_api_configuration"><a class="anchor" href="#sec:runtime_api_configuration"></a><a class="link" href="#sec:runtime_api_configuration">Fine-grained configuration</a></h3> <div class="paragraph"> <p>The runtime API methods only allow you to declare your inputs and outputs in themselves. However, the file-oriented ones return a builder — of type <a href="../javadoc/org/gradle/api/tasks/TaskInputFilePropertyBuilder.html">TaskInputFilePropertyBuilder</a> — that lets you provide additional information about those inputs and outputs.</p> </div> <div class="paragraph"> <p>You can learn about all the options provided by the builder in its API documentation, but we’ll show you a simple example here to give you an idea of what you can do.</p> </div> <div class="paragraph"> <p>Let’s say we don’t want to run the <code>processTemplates</code> task if there are no source files, regardless of whether it’s a clean build or not. After all, if there are no source files, there’s nothing for the task to do. The builder allows us to configure this like so:</p> </div> <div id="ex-using-skipwhenempty-via-the-runtime-api" class="exampleblock"> <div class="title">Example 4. <a href="#ex-using-skipwhenempty-via-the-runtime-api">Using skipWhenEmpty() via the runtime API</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">tasks.register("processTemplatesAdHocSkipWhenEmpty") { // ... inputs.files(fileTree("src/templates") { include("**/*.fm") }) .skipWhenEmpty() .withPropertyName("sourceFiles") .withPathSensitivity(PathSensitivity.RELATIVE) .ignoreEmptyDirectories() // ... }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">tasks.register('processTemplatesAdHocSkipWhenEmpty') { // ... inputs.files(fileTree('src/templates') { include '**/*.fm' }) .skipWhenEmpty() .withPropertyName('sourceFiles') .withPathSensitivity(PathSensitivity.RELATIVE) .ignoreEmptyDirectories() // ... }</code></pre> </div> </div> </div> </div> <div class="listingblock"> <div class="title">Output of <strong><code>gradle clean processTemplatesAdHocSkipWhenEmpty</code></strong></div> <div class="content"> <pre>> gradle clean processTemplatesAdHocSkipWhenEmpty > Task :processTemplatesAdHocSkipWhenEmpty NO-SOURCE BUILD SUCCESSFUL in 0s 3 actionable tasks: 2 executed, 1 up-to-date</pre> </div> </div> </div> </div> <div class="paragraph"> <p>The <code>TaskInputs.files()</code> method returns a builder that has a <code>skipWhenEmpty()</code> method. Invoking this method is equivalent to annotating to the property with <a href="#skip-when-empty"><code>@SkipWhenEmpty</code></a>.</p> </div> <div class="paragraph"> <p>Now that you have seen both the annotations and the runtime API, you may be wondering which API you should be using. Our recommendation is to use the annotations wherever possible, and it’s sometimes worth creating a custom task class just so that you can make use of them. The runtime API is more for situations in which you can’t use the annotations.</p> </div> </div> <div class="sect2"> <h3 id="sec:runtime_api_for_custom_tasks"><a class="anchor" href="#sec:runtime_api_for_custom_tasks"></a><a class="link" href="#sec:runtime_api_for_custom_tasks">Declaring inputs and outputs for custom task types</a></h3> <div class="paragraph"> <p>Another type of example involves registering additional inputs and outputs for instances of a custom task class. For example, imagine that the <code>ProcessTemplates</code> task also needs to read <code>src/headers/headers.txt</code> (e.g. because it is included from one of the sources). You’d want Gradle to know about this input file, so that it can re-execute the task whenever the contents of this file change. With the runtime API you can do just that:</p> </div> <div id="ex-using-runtime-api-with-custom-task-type" class="exampleblock"> <div class="title">Example 5. <a href="#ex-using-runtime-api-with-custom-task-type">Using runtime API with custom task type</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">tasks.register<ProcessTemplates>("processTemplatesWithExtraInputs") { // ... inputs.file("src/headers/headers.txt") .withPropertyName("headers") .withPathSensitivity(PathSensitivity.NONE) }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">tasks.register('processTemplatesWithExtraInputs', ProcessTemplates) { // ... inputs.file('src/headers/headers.txt') .withPropertyName('headers') .withPathSensitivity(PathSensitivity.NONE) }</code></pre> </div> </div> </div> </div> </div> </div> <div class="paragraph"> <p>Using the runtime API like this is a little like using <code>doLast()</code> and <code>doFirst()</code> to attach extra actions to a task, except in this case we’re attaching information about inputs and outputs.</p> </div> <div class="admonitionblock warning"> <table> <tr> <td class="icon"> <i class="fa icon-warning" title="Warning"></i> </td> <td class="content"> If the task type is already using the incremental build annotations, registering inputs or outputs with the same property names will result in an error. </td> </tr> </table> </div> </div> </div> </div> <div class="sect1"> <h2 id="sec:task_input_output_side_effects"><a class="anchor" href="#sec:task_input_output_side_effects"></a><a class="link" href="#sec:task_input_output_side_effects">Benefits of declaring task inputs and outputs</a></h2> <div class="sectionbody"> <div class="paragraph"> <p>Once you declare a task’s formal inputs and outputs, Gradle can then infer things about those properties. For example, if an input of one task is set to the output of another, that means the first task depends on the second, right? Gradle knows this and can act upon it.</p> </div> <div class="paragraph"> <p>We’ll look at this feature next and also some other features that come from Gradle knowing things about inputs and outputs.</p> </div> <div class="sect2"> <h3 id="sec:inferred_task_dependencies"><a class="anchor" href="#sec:inferred_task_dependencies"></a><a class="link" href="#sec:inferred_task_dependencies">Inferred task dependencies</a></h3> <div class="paragraph"> <p>Consider an archive task that packages the output of the <code>processTemplates</code> task. A build author will see that the archive task obviously requires <code>processTemplates</code> to run first and so may add an explicit <code>dependsOn</code>. However, if you define the archive task like so:</p> </div> <div id="ex-inferred-task-dependency-via-task-outputs" class="exampleblock"> <div class="title">Example 6. <a href="#ex-inferred-task-dependency-via-task-outputs">Inferred task dependency via task outputs</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">tasks.register<Zip>("packageFiles") { from(processTemplates.map { it.outputDir }) }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">tasks.register('packageFiles', Zip) { from processTemplates.map { it.outputDir } }</code></pre> </div> </div> </div> </div> <div class="listingblock"> <div class="title">Output of <strong><code>gradle clean packageFiles</code></strong></div> <div class="content"> <pre>> gradle clean packageFiles > Task :processTemplates > Task :packageFiles BUILD SUCCESSFUL in 0s 5 actionable tasks: 4 executed, 1 up-to-date</pre> </div> </div> </div> </div> <div class="paragraph"> <p>Gradle will automatically make <code>packageFiles</code> depend on <code>processTemplates</code>. It can do this because it’s aware that one of the inputs of packageFiles requires the output of the processTemplates task. We call this an inferred task dependency.</p> </div> <div class="paragraph"> <p>The above example can also be written as</p> </div> <div id="ex-inferred-task-dependency-via-a-task-argument" class="exampleblock"> <div class="title">Example 7. <a href="#ex-inferred-task-dependency-via-a-task-argument">Inferred task dependency via a task argument</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">tasks.register<Zip>("packageFiles2") { from(processTemplates) }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">tasks.register('packageFiles2', Zip) { from processTemplates }</code></pre> </div> </div> </div> </div> <div class="listingblock"> <div class="title">Output of <strong><code>gradle clean packageFiles2</code></strong></div> <div class="content"> <pre>> gradle clean packageFiles2 > Task :processTemplates > Task :packageFiles2 BUILD SUCCESSFUL in 0s 5 actionable tasks: 4 executed, 1 up-to-date</pre> </div> </div> </div> </div> <div class="paragraph"> <p>This is because the <code>from()</code> method can accept a task object as an argument. Behind the scenes, <code>from()</code> uses the <code>project.files()</code> method to wrap the argument, which in turn exposes the task’s formal outputs as a file collection. In other words, it’s a special case!</p> </div> </div> <div class="sect2"> <h3 id="sec:task_input_output_validation"><a class="anchor" href="#sec:task_input_output_validation"></a><a class="link" href="#sec:task_input_output_validation">Input and output validation</a></h3> <div class="paragraph"> <p>The incremental build annotations provide enough information for Gradle to perform some basic validation on the annotated properties. In particular, it does the following for each property before the task executes:</p> </div> <div class="ulist"> <ul> <li> <p><code>@InputFile</code> - verifies that the property has a value and that the path corresponds to a file (not a directory) that exists.</p> </li> <li> <p><code>@InputDirectory</code> - same as for <code>@InputFile</code>, except the path must correspond to a directory.</p> </li> <li> <p><code>@OutputDirectory</code> - verifies that the path doesn’t match a file and also creates the directory if it doesn’t already exist.</p> </li> </ul> </div> <div class="paragraph"> <p>If one task produces an output in a location and another task consumes that location by referring to it as an input, then Gradle checks that the consumer task depends on the producer task. When the producer and the consumer tasks are executing at the same time, the build fails to avoid capturing an incorrect state.</p> </div> <div class="paragraph"> <p>Such validation improves the robustness of the build, allowing you to identify issues related to inputs and outputs quickly.</p> </div> <div class="paragraph"> <p>You will occasionally want to disable some of this validation, specifically when an input file may validly not exist. That’s why Gradle provides the <code>@Optional</code> annotation: you use it to tell Gradle that a particular input is optional and therefore the build should not fail if the corresponding file or directory doesn’t exist.</p> </div> </div> <div class="sect2"> <h3 id="sec:task_input_output_continuous_build"><a class="anchor" href="#sec:task_input_output_continuous_build"></a><a class="link" href="#sec:task_input_output_continuous_build">Continuous build</a></h3> <div class="paragraph"> <p>Another benefit of defining task inputs and outputs is continuous build. Since Gradle knows what files a task depends on, it can automatically run a task again if any of its inputs change. By activating continuous build when you run Gradle — through the <code>--continuous</code> or <code>-t</code> options — you will put Gradle into a state in which it continually checks for changes and executes the requested tasks when it encounters such changes.</p> </div> <div class="paragraph"> <p>You can find out more about this feature in <a href="command_line_interface.html#sec:continuous_build">Continuous build</a>.</p> </div> </div> <div class="sect2"> <h3 id="sec:task_input_output_parallelism"><a class="anchor" href="#sec:task_input_output_parallelism"></a><a class="link" href="#sec:task_input_output_parallelism">Task parallelism</a></h3> <div class="paragraph"> <p>One last benefit of defining task inputs and outputs is that Gradle can use this information to make decisions about how to run tasks when the "--parallel" option is used. For instance, Gradle will inspect the outputs of tasks when selecting the next task to run and will avoid concurrent execution of tasks that write to the same output directory. Similarly, Gradle will use the information about what files a task destroys (e.g. specified by the <code>Destroys</code> annotation) and avoid running a task that removes a set of files while another task is running that consumes or creates those same files (and vice versa). It can also determine that a task that creates a set of files has already run and that a task that consumes those files has yet to run and will avoid running a task that removes those files in between. By providing task input and output information in this way, Gradle can infer creation/consumption/destruction relationships between tasks and can ensure that task execution does not violate those relationships.</p> </div> </div> </div> </div> <div class="sect1"> <h2 id="sec:how_does_it_work"><a class="anchor" href="#sec:how_does_it_work"></a><a class="link" href="#sec:how_does_it_work">How does it work?</a></h2> <div class="sectionbody"> <div class="paragraph"> <p>Before a task is executed for the first time, Gradle takes a fingerprint of the inputs. This fingerprint contains the paths of input files and a hash of the contents of each file. Gradle then executes the task. If the task completes successfully, Gradle takes a fingerprint of the outputs. This fingerprint contains the set of output files and a hash of the contents of each file. Gradle persists both fingerprints for the next time the task is executed.</p> </div> <div class="paragraph"> <p>Each time after that, before the task is executed, Gradle takes a new fingerprint of the inputs and outputs. If the new fingerprints are the same as the previous fingerprints, Gradle assumes that the outputs are up to date and skips the task. If they are not the same, Gradle executes the task. Gradle persists both fingerprints for the next time the task is executed.</p> </div> <div class="paragraph"> <p>If the stats of a file (i.e. <code>lastModified</code> and <code>size</code>) did not change, Gradle will reuse the file’s fingerprint from the previous run. That means that Gradle does not detect changes when the stats of a file did not change.</p> </div> <div class="paragraph"> <p>Gradle also considers the <em>code</em> of the task as part of the inputs to the task. When a task, its actions, or its dependencies change between executions, Gradle considers the task as out-of-date.</p> </div> <div class="paragraph"> <p>Gradle understands if a file property (e.g. one holding a Java classpath) is order-sensitive. When comparing the fingerprint of such a property, even a change in the order of the files will result in the task becoming out-of-date.</p> </div> <div class="paragraph"> <p>Note that if a task has an output directory specified, any files added to that directory since the last time it was executed are ignored and will NOT cause the task to be out of date. This is so unrelated tasks may share an output directory without interfering with each other. If this is not the behaviour you want for some reason, consider using <a href="../javadoc/org/gradle/api/tasks/TaskOutputs.html#upToDateWhen-groovy.lang.Closure-">TaskOutputs.upToDateWhen(groovy.lang.Closure)</a></p> </div> <div class="paragraph"> <p>Note also that changing the availability of an unavailable file (e.g. modifying the target of a broken symlink to a valid file, or vice versa), will be detected and handled by up-to-date check.</p> </div> <div class="paragraph"> <p>The inputs for the task are also used to calculate the <a href="build_cache.html#build_cache">build cache</a> key used to load task outputs when enabled. For more details see <a href="build_cache.html#sec:task_output_caching">Task output caching</a>.</p> </div> <div class="openblock"> <div class="content"> <div class="paragraph"> <p>For tracking the implementation of tasks, task actions and nested inputs, Gradle uses the class name and an identifier for the classpath which contains the implementation. There are some situations when Gradle is not able to track the implementation precisely:</p> </div> <div class="dlist"> <dl> <dt class="hdlist1">Unknown classloader</dt> <dd> <p>When the classloader which loaded the implementation has not been created by Gradle, the classpath cannot be determined.</p> </dd> <dt class="hdlist1">Java lambda</dt> <dd> <p>Java lambda classes are created at runtime with a non-deterministic classname. Therefore, the class name does not identify the implementation of the lambda and changes between different Gradle runs.</p> </dd> </dl> </div> <div class="paragraph"> <p>When the implementation of a task, task action or a nested input cannot be tracked precisely, Gradle disables any caching for the task. That means that the task will never be up-to-date or loaded from the <a href="build_cache.html#sec:task_output_caching">build cache</a>.</p> </div> </div> </div> </div> </div> <div class="sect1"> <h2 id="sec:advanced_inc_build"><a class="anchor" href="#sec:advanced_inc_build"></a><a class="link" href="#sec:advanced_inc_build">Advanced techniques</a></h2> <div class="sectionbody"> <div class="paragraph"> <p>Everything you’ve seen so far in this section will cover most of the use cases you’ll encounter, but there are some scenarios that need special treatment. We’ll present a few of those next with the appropriate solutions.</p> </div> <div class="sect2"> <h3 id="sec:add_cached_input_output_methods"><a class="anchor" href="#sec:add_cached_input_output_methods"></a><a class="link" href="#sec:add_cached_input_output_methods">Adding your own cached input/output methods</a></h3> <div class="paragraph"> <p>Have you ever wondered how the <code>from()</code> method of the <code>Copy</code> task works? It’s not annotated with <code>@InputFiles</code> and yet any files passed to it are treated as formal inputs of the task. What’s happening?</p> </div> <div class="paragraph"> <p>The implementation is quite simple and you can use the same technique for your own tasks to improve their APIs. Write your methods so that they add files directly to the appropriate annotated property. As an example, here’s how to add a <code>sources()</code> method to the custom <code>ProcessTemplates</code> class we introduced earlier:</p> </div> <div id="ex-declaring-a-method-to-add-task-inputs" class="exampleblock"> <div class="title">Example 8. <a href="#ex-declaring-a-method-to-add-task-inputs">Declaring a method to add task inputs</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">tasks.register<ProcessTemplates>("processTemplates") { templateEngine = TemplateEngineType.FREEMARKER templateData.name = "test" templateData.variables = mapOf("year" to "2012") outputDir = layout.buildDirectory.dir("genOutput") sources(fileTree("src/templates")) }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">tasks.register('processTemplates', ProcessTemplates) { templateEngine = TemplateEngineType.FREEMARKER templateData.name = 'test' templateData.variables = [year: '2012'] outputDir = file(layout.buildDirectory.dir('genOutput')) sources fileTree('src/templates') }</code></pre> </div> </div> </div> </div> <div class="listingblock"> <div class="title">ProcessTemplates.java</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="java">public abstract class ProcessTemplates extends DefaultTask { // ... @SkipWhenEmpty @InputFiles @PathSensitive(PathSensitivity.NONE) public abstract ConfigurableFileCollection getSourceFiles(); public void sources(FileCollection sourceFiles) { getSourceFiles().from(sourceFiles); } // ... }</code></pre> </div> </div> <div class="listingblock"> <div class="title">Output of <code>gradle processTemplates</code></div> <div class="content"> <pre>> gradle processTemplates > Task :processTemplates BUILD SUCCESSFUL in 0s 3 actionable tasks: 3 executed</pre> </div> </div> </div> </div> <div class="paragraph"> <p>In other words, as long as you add values and files to formal task inputs and outputs during the configuration phase, they will be treated as such regardless from where in the build you add them.</p> </div> <div class="paragraph"> <p>If we want to support tasks as arguments as well and treat their outputs as the inputs, we can use the <code>TaskProvider</code> directly like so:</p> </div> <div id="ex-declaring-a-method-to-add-a-task-as-an-input" class="exampleblock"> <div class="title">Example 9. <a href="#ex-declaring-a-method-to-add-a-task-as-an-input">Declaring a method to add a task as an input</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">val copyTemplates by tasks.registering(Copy::class) { into(file(layout.buildDirectory.dir("tmp"))) from("src/templates") } tasks.register<ProcessTemplates>("processTemplates2") { // ... sources(copyTemplates) }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">def copyTemplates = tasks.register('copyTemplates', Copy) { into file(layout.buildDirectory.dir('tmp')) from 'src/templates' } tasks.register('processTemplates2', ProcessTemplates) { // ... sources copyTemplates }</code></pre> </div> </div> </div> </div> <div class="listingblock"> <div class="title">ProcessTemplates.java</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="java"> // ... public void sources(TaskProvider<?> inputTask) { getSourceFiles().from(inputTask); } // ...</code></pre> </div> </div> <div class="listingblock"> <div class="title">Output of <code>gradle processTemplates2</code></div> <div class="content"> <pre>> gradle processTemplates2 > Task :copyTemplates > Task :processTemplates2 BUILD SUCCESSFUL in 0s 4 actionable tasks: 4 executed</pre> </div> </div> </div> </div> <div class="paragraph"> <p>This technique can make your custom task easier to use and result in cleaner build files. As an added benefit, our use of <code>TaskProvider</code> means that our custom method can set up an inferred task dependency.</p> </div> <div class="paragraph"> <p>One last thing to note: if you are developing a task that takes collections of source files as inputs, like this example, consider using the built-in <a href="../dsl/org.gradle.api.tasks.SourceTask.html">SourceTask</a>. It will save you having to implement some of the plumbing that we put into <code>ProcessTemplates</code>.</p> </div> </div> <div class="sect2"> <h3 id="sec:link_output_dir_to_input_files"><a class="anchor" href="#sec:link_output_dir_to_input_files"></a><a class="link" href="#sec:link_output_dir_to_input_files">Linking an <code>@OutputDirectory</code> to an <code>@InputFiles</code></a></h3> <div class="paragraph"> <p>When you want to link the output of one task to the input of another, the types often match and a simple property assignment will provide that link. For example, a <code>File</code> output property can be assigned to a <code>File</code> input.</p> </div> <div class="paragraph"> <p>Unfortunately, this approach breaks down when you want the files in a task’s <code>@OutputDirectory</code> (of type <code>File</code>) to become the source for another task’s <code>@InputFiles</code> property (of type <code>FileCollection</code>). Since the two have different types, property assignment won’t work.</p> </div> <div class="paragraph"> <p>As an example, imagine you want to use the output of a Java compilation task — via the <code>destinationDir</code> property — as the input of a custom task that instruments a set of files containing Java bytecode. This custom task, which we’ll call <code>Instrument</code>, has a <code>classFiles</code> property annotated with <code>@InputFiles</code>. You might initially try to configure the task like so:</p> </div> <div id="ex-failed-attempt-at-setting-up-an-inferred-task-dependency" class="exampleblock"> <div class="title">Example 10. <a href="#ex-failed-attempt-at-setting-up-an-inferred-task-dependency">Failed attempt at setting up an inferred task dependency</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">plugins { id("java-library") } tasks.register<Instrument>("badInstrumentClasses") { classFiles.from(fileTree(tasks.compileJava.flatMap { it.destinationDirectory })) destinationDir = layout.buildDirectory.dir("instrumented") }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">plugins { id 'java-library' } tasks.register('badInstrumentClasses', Instrument) { classFiles.from fileTree(tasks.named('compileJava').flatMap { it.destinationDirectory }) {} destinationDir = file(layout.buildDirectory.dir('instrumented')) }</code></pre> </div> </div> </div> </div> <div class="listingblock"> <div class="title">Output of <strong><code>gradle clean badInstrumentClasses</code></strong></div> <div class="content"> <pre>> gradle clean badInstrumentClasses > Task :clean UP-TO-DATE > Task :badInstrumentClasses NO-SOURCE BUILD SUCCESSFUL in 0s 3 actionable tasks: 2 executed, 1 up-to-date</pre> </div> </div> </div> </div> <div class="paragraph"> <p>There’s nothing obviously wrong with this code, but you can see from the console output that the compilation task is missing. In this case you would need to add an explicit task dependency between <code>instrumentClasses</code> and <code>compileJava</code> via <code>dependsOn</code>. The use of <code>fileTree()</code> means that Gradle can’t infer the task dependency itself.</p> </div> <div class="paragraph"> <p>One solution is to use the <code>TaskOutputs.files</code> property, as demonstrated by the following example:</p> </div> <div id="ex-setting-up-an-inferred-task-dependency-between-output-dir-and-input-files" class="exampleblock"> <div class="title">Example 11. <a href="#ex-setting-up-an-inferred-task-dependency-between-output-dir-and-input-files">Setting up an inferred task dependency between output dir and input files</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">tasks.register<Instrument>("instrumentClasses") { classFiles.from(tasks.compileJava.map { it.outputs.files }) destinationDir = layout.buildDirectory.dir("instrumented") }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">tasks.register('instrumentClasses', Instrument) { classFiles.from tasks.named('compileJava').map { it.outputs.files } destinationDir = file(layout.buildDirectory.dir('instrumented')) }</code></pre> </div> </div> </div> </div> <div class="listingblock"> <div class="title">Output of <strong><code>gradle clean instrumentClasses</code></strong></div> <div class="content"> <pre>> gradle clean instrumentClasses > Task :clean UP-TO-DATE > Task :compileJava > Task :instrumentClasses BUILD SUCCESSFUL in 0s 5 actionable tasks: 4 executed, 1 up-to-date</pre> </div> </div> </div> </div> <div class="paragraph"> <p>Alternatively, you can get Gradle to access the appropriate property itself by using one of <code>project.files()</code>, <code>project.layout.files()</code> or <code>project.objects.fileCollection()</code> in place of <code>project.fileTree()</code>:</p> </div> <div id="ex-setting-up-an-inferred-task-dependency-with-layout-files" class="exampleblock"> <div class="title">Example 12. <a href="#ex-setting-up-an-inferred-task-dependency-with-layout-files">Setting up an inferred task dependency with <code>layout.files()</code></a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">tasks.register<Instrument>("instrumentClasses2") { classFiles.from(layout.files(tasks.compileJava)) destinationDir = layout.buildDirectory.dir("instrumented") }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">tasks.register('instrumentClasses2', Instrument) { classFiles.from layout.files(tasks.named('compileJava')) destinationDir = file(layout.buildDirectory.dir('instrumented')) }</code></pre> </div> </div> </div> </div> <div class="listingblock"> <div class="title">Output of <strong><code>gradle clean instrumentClasses2</code></strong></div> <div class="content"> <pre>> gradle clean instrumentClasses2 > Task :clean UP-TO-DATE > Task :compileJava > Task :instrumentClasses2 BUILD SUCCESSFUL in 0s 5 actionable tasks: 4 executed, 1 up-to-date</pre> </div> </div> </div> </div> <div class="paragraph"> <p>Remember that <code>files()</code>, <code>layout.files()</code> and <code>objects.fileCollection()</code> can take tasks as arguments, whereas <code>fileTree()</code> cannot.</p> </div> <div class="paragraph"> <p>The downside of this approach is that all file outputs of the source task become the input files of the target — <code>instrumentClasses</code> in this case. That’s fine as long as the source task only has a single file-based output, like the <code>JavaCompile</code> task. But if you have to link just one output property among several, then you need to explicitly tell Gradle which task generates the input files using the <code>builtBy</code> method:</p> </div> <div id="ex-setting-up-an-inferred-task-dependency-with-builtby" class="exampleblock"> <div class="title">Example 13. <a href="#ex-setting-up-an-inferred-task-dependency-with-builtby">Setting up an inferred task dependency with builtBy()</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">tasks.register<Instrument>("instrumentClassesBuiltBy") { classFiles.from(fileTree(tasks.compileJava.flatMap { it.destinationDirectory }) { builtBy(tasks.compileJava) }) destinationDir = layout.buildDirectory.dir("instrumented") }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">tasks.register('instrumentClassesBuiltBy', Instrument) { classFiles.from fileTree(tasks.named('compileJava').flatMap { it.destinationDirectory }) { builtBy tasks.named('compileJava') } destinationDir = file(layout.buildDirectory.dir('instrumented')) }</code></pre> </div> </div> </div> </div> <div class="listingblock"> <div class="title">Output of <strong><code>gradle clean instrumentClassesBuiltBy</code></strong></div> <div class="content"> <pre>> gradle clean instrumentClassesBuiltBy > Task :clean UP-TO-DATE > Task :compileJava > Task :instrumentClassesBuiltBy BUILD SUCCESSFUL in 0s 5 actionable tasks: 4 executed, 1 up-to-date</pre> </div> </div> </div> </div> <div class="paragraph"> <p>You can of course just add an explicit task dependency via <code>dependsOn</code>, but the above approach provides more semantic meaning, explaining why <code>compileJava</code> has to run beforehand.</p> </div> </div> <div class="sect2"> <h3 id="sec:disable-state-tracking"><a class="anchor" href="#sec:disable-state-tracking"></a><a class="link" href="#sec:disable-state-tracking">Disabling up-to-date checks</a></h3> <div class="paragraph"> <p>Gradle automatically handles up-to-date checks for output files and directories, but what if the task output is something else entirely? Perhaps it’s an update to a web service or a database table. Or sometimes you have a task which should always run.</p> </div> <div class="paragraph"> <p>That’s where the <code>doNotTrackState()</code> method on <code>Task</code> comes in. One can use this to disable up-to-date checks completely for a task, like so:</p> </div> <div id="ex-ignoring-up-to-date-checks" class="exampleblock"> <div class="title">Example 14. <a href="#ex-ignoring-up-to-date-checks">Ignoring up-to-date checks</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">tasks.register<Instrument>("alwaysInstrumentClasses") { classFiles.from(layout.files(tasks.compileJava)) destinationDir = layout.buildDirectory.dir("instrumented") doNotTrackState("Instrumentation needs to re-run every time") }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">tasks.register('alwaysInstrumentClasses', Instrument) { classFiles.from layout.files(tasks.named('compileJava')) destinationDir = file(layout.buildDirectory.dir('instrumented')) doNotTrackState("Instrumentation needs to re-run every time") }</code></pre> </div> </div> </div> </div> <div class="listingblock"> <div class="title">Output of <code>gradle clean alwaysInstrumentClasses</code></div> <div class="content"> <pre>> gradle clean alwaysInstrumentClasses > Task :compileJava > Task :alwaysInstrumentClasses BUILD SUCCESSFUL in 0s 4 actionable tasks: 1 executed, 3 up-to-date</pre> </div> </div> <div class="listingblock"> <div class="title">Output of <code>gradle alwaysInstrumentClasses</code></div> <div class="content"> <pre>> gradle alwaysInstrumentClasses > Task :compileJava UP-TO-DATE > Task :alwaysInstrumentClasses BUILD SUCCESSFUL in 0s 4 actionable tasks: 1 executed, 3 up-to-date</pre> </div> </div> </div> </div> <div class="paragraph"> <p>If you are writing your own task that always should run, then you can also use the <code>@<a href="../javadoc/org/gradle/api/tasks/UntrackedTask.html">UntrackedTask</a></code> annotation on the task class instead of calling <code>Task.doNotTrackState()</code>.</p> </div> </div> <div class="sect2"> <h3 id="sec:untracked_external_tool"><a class="anchor" href="#sec:untracked_external_tool"></a><a class="link" href="#sec:untracked_external_tool">Integrate an external tool which does its own up-to-date checking</a></h3> <div class="paragraph"> <p>Sometimes you want to integrate an external tool like Git or Npm, both of which do their own up-to-date checking. In that case it doesn’t make much sense for Gradle to also do up-to-date checks. You can disable Gradle’s up-to-date checks by using the <code>@<a href="../javadoc/org/gradle/api/tasks/UntrackedTask.html">UntrackedTask</a></code> annotation on the task wrapping the tool. Alternatively, you can use the runtime API method <code><a href="../dsl/org.gradle.api.Task.html#org.gradle.api.Task:doNotTrackState(java.lang.String)">Task.doNotTrackState()</a></code>.</p> </div> <div class="paragraph"> <p>For example, let’s say you want to implement a task which clones a Git repository.</p> </div> <div id="ex-task-for-git-clone" class="exampleblock"> <div class="title">Example 15. <a href="#ex-task-for-git-clone">Task for Git clone</a></div> <div class="content"> <div class="listingblock"> <div class="title">buildSrc/src/main/java/org/example/GitClone.java</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="java">@UntrackedTask(because = "Git tracks the state") <i class="conum" data-value="1"></i><b>(1)</b> public abstract class GitClone extends DefaultTask { @Input public abstract Property<String> getRemoteUri(); @Input public abstract Property<String> getCommitId(); @OutputDirectory public abstract DirectoryProperty getDestinationDir(); @TaskAction public void gitClone() throws IOException { File destinationDir = getDestinationDir().get().getAsFile().getAbsoluteFile(); <i class="conum" data-value="2"></i><b>(2)</b> String remoteUri = getRemoteUri().get(); // Fetch origin or clone and checkout // ... } }</code></pre> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">tasks.register<GitClone>("cloneGradleProfiler") { destinationDir = layout.buildDirectory.dir("gradle-profiler") // <3 remoteUri = "https://github.com/gradle/gradle-profiler.git" commitId = "d6c18a21ca6c45fd8a9db321de4478948bdf801b" }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">tasks.register("cloneGradleProfiler", GitClone) { destinationDir = layout.buildDirectory.dir("gradle-profiler") <i class="conum" data-value="3"></i><b>(3)</b> remoteUri = "https://github.com/gradle/gradle-profiler.git" commitId = "d6c18a21ca6c45fd8a9db321de4478948bdf801b" }</code></pre> </div> </div> </div> </div> </div> </div> <div class="colist arabic"> <table> <tr> <td><i class="conum" data-value="1"></i><b>1</b></td> <td>Declare the task as untracked.</td> </tr> <tr> <td><i class="conum" data-value="2"></i><b>2</b></td> <td>Use the output directory to run the external tool.</td> </tr> <tr> <td><i class="conum" data-value="3"></i><b>3</b></td> <td>Add the task and configure the output directory in your build.</td> </tr> </table> </div> </div> <div class="sect2"> <h3 id="sec:configure_input_normalization"><a class="anchor" href="#sec:configure_input_normalization"></a><a class="link" href="#sec:configure_input_normalization">Configure input normalization</a></h3> <div class="paragraph"> <p>For up to date checks and the <a href="build_cache.html#build_cache">build cache</a> Gradle needs to determine if two task input properties have the same value. In order to do so, Gradle first normalizes both inputs and then compares the result. For example, for a compile classpath, Gradle extracts the ABI signature from the classes on the classpath and then compares signatures between the last Gradle run and the current Gradle run as described in <a href="java_plugin.html#sec:java_compile_avoidance">Java compile avoidance</a>.</p> </div> <div class="paragraph"> <p>Normalization applies to all zip files on the classpath (e.g. jars, wars, aars, apks, etc). This allows Gradle to recognize when two zip files are functionally the same, even though the zip files themselves might be slightly different due to metadata (such as timestamps or file order). Normalization applies not only to zip files directly on the classpath, but also to zip files nested inside directories or inside other zip files on the classpath.</p> </div> <div class="paragraph"> <p>It is possible to customize Gradle’s built-in strategy for runtime classpath normalization. All inputs annotated with <code>@<a href="../javadoc/org/gradle/api/tasks/Classpath.html">Classpath</a></code> are considered to be runtime classpaths.</p> </div> <div class="paragraph"> <p>Let’s say you want to add a file <code>build-info.properties</code> to all your produced jar files which contains information about the build, e.g. the timestamp when the build started or some ID to identify the CI job that published the artifact. This file is only for auditing purposes, and has no effect on the outcome of running tests. Nonetheless, this file is part of the runtime classpath for the <code>test</code> task and changes on every build invocation. Therefore, the <code>test</code> would be never up-to-date or pulled from the build cache. In order to benefit from incremental builds again, you are able tell Gradle to ignore this file on the runtime classpath at the project level by using <a href="../dsl/org.gradle.api.Project.html#org.gradle.api.Project:normalization(org.gradle.api.Action)">Project.normalization(org.gradle.api.Action)</a> (in the <em>consuming</em> project):</p> </div> <div id="ex-runtime-classpath-normalization" class="exampleblock"> <div class="title">Example 16. <a href="#ex-runtime-classpath-normalization">Runtime classpath normalization</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">normalization { runtimeClasspath { ignore("build-info.properties") } }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">normalization { runtimeClasspath { ignore 'build-info.properties' } }</code></pre> </div> </div> </div> </div> </div> </div> <div class="paragraph"> <p>If adding such a file to your jar files is something you do for all of the projects in your build, and you want to filter this file for all consumers, you should consider configuring such normalization in a <a href="sharing_build_logic_between_subprojects.html#sec:sharing_logic_via_convention_plugins">convention plugin</a> to share it between subprojects.</p> </div> <div class="paragraph"> <p>The effect of this configuration would be that changes to <code>build-info.properties</code> would be ignored for up-to-date checks and <a href="build_cache.html#build_cache">build cache</a> key calculations. Note that this will not change the runtime behavior of the <code>test</code> task — i.e. any test is still able to load <code>build-info.properties</code> and the runtime classpath is still the same as before.</p> </div> <div class="sect3"> <h4 id="sec:property_file_normalization"><a class="anchor" href="#sec:property_file_normalization"></a><a class="link" href="#sec:property_file_normalization">Properties file normalization</a></h4> <div class="paragraph"> <p>By default, properties files (i.e. files that end in a <code>.properties</code> extension) will be normalized to ignore differences in comments, whitespace and the order of properties. Gradle does this by loading the properties files and only considering the individual properties during up-to-date checks or build cache key calculations.</p> </div> <div class="paragraph"> <p>It is sometimes the case, though, that certain properties have a runtime impact, while others do not. If a property is changing that does not have an impact on the runtime classpath, it may be desirable to exclude it from up-to-date checks and <a href="build_cache.html#build_cache">build cache</a> key calculations. However, excluding the entire file would also exclude the properties that do have a runtime impact. In this case, properties can be excluded selectively from any or all properties files on the runtime classpath.</p> </div> <div class="paragraph"> <p>A rule for ignoring properties can be applied to a specific set of files using the patterns described in <a href="../dsl/org.gradle.normalization.RuntimeClasspathNormalization.html">RuntimeClasspathNormalization</a>. In the event that a file matches a rule, but cannot be loaded as a properties file (e.g. because it is not formatted properly or uses a non-standard encoding), it will be incorporated into the up-to-date or build cache key calculation as a normal file. In other words, if the file cannot be loaded as a properties file, any changes to whitespace, property order, or comments may cause the task to become out-of-date or cause a cache miss.</p> </div> <div id="ex-ignore-a-property-in-selected-properties-files" class="exampleblock"> <div class="title">Example 17. <a href="#ex-ignore-a-property-in-selected-properties-files">Ignore a property in selected properties files</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">normalization { runtimeClasspath { properties("**/build-info.properties") { ignoreProperty("timestamp") } } }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">normalization { runtimeClasspath { properties('**/build-info.properties') { ignoreProperty 'timestamp' } } }</code></pre> </div> </div> </div> </div> </div> </div> <div id="ex-ignore-a-property-in-all-properties-files" class="exampleblock"> <div class="title">Example 18. <a href="#ex-ignore-a-property-in-all-properties-files">Ignore a property in all properties files</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">normalization { runtimeClasspath { properties { ignoreProperty("timestamp") } } }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">normalization { runtimeClasspath { properties { ignoreProperty 'timestamp' } } }</code></pre> </div> </div> </div> </div> </div> </div> </div> <div class="sect3"> <h4 id="sec:meta_inf_normalization"><a class="anchor" href="#sec:meta_inf_normalization"></a><a class="link" href="#sec:meta_inf_normalization">Java <code>META-INF</code> normalization</a></h4> <div class="paragraph"> <p>For files in the <code>META-INF</code> directory of jar archives it’s not always possible to ignore files completely due to their runtime impact.</p> </div> <div class="paragraph"> <p>Manifest files within <code>META-INF</code> are normalized to ignore comments, whitespace and order differences. Manifest attribute names are compared case-and-order insensitively. Manifest properties files are normalized according to <a href="#sec:property_file_normalization">Properties File Normalization</a>.</p> </div> <div id="ex-ignore-meta-inf-manifest-attributes" class="exampleblock"> <div class="title">Example 19. <a href="#ex-ignore-meta-inf-manifest-attributes">Ignore <code>META-INF</code> manifest attributes</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">normalization { runtimeClasspath { metaInf { ignoreAttribute("Implementation-Version") } } }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">normalization { runtimeClasspath { metaInf { ignoreAttribute("Implementation-Version") } } }</code></pre> </div> </div> </div> </div> </div> </div> <div id="ex-ignore-meta-inf-property-keys" class="exampleblock"> <div class="title">Example 20. <a href="#ex-ignore-meta-inf-property-keys">Ignore <code>META-INF</code> property keys</a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">normalization { runtimeClasspath { metaInf { ignoreProperty("app.version") } } }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">normalization { runtimeClasspath { metaInf { ignoreProperty("app.version") } } }</code></pre> </div> </div> </div> </div> </div> </div> <div id="ex-ignore-meta-infmanifest-mf" class="exampleblock"> <div class="title">Example 21. <a href="#ex-ignore-meta-infmanifest-mf">Ignore <code>META-INF/MANIFEST.MF</code></a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">normalization { runtimeClasspath { metaInf { ignoreManifest() } } }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">normalization { runtimeClasspath { metaInf { ignoreManifest() } } }</code></pre> </div> </div> </div> </div> </div> </div> <div id="ex-ignore-all-files-and-directories-inside-meta-inf" class="exampleblock"> <div class="title">Example 22. <a href="#ex-ignore-all-files-and-directories-inside-meta-inf">Ignore all files and directories inside <code>META-INF</code></a></div> <div class="content"> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle.kts</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="kotlin">normalization { runtimeClasspath { metaInf { ignoreCompletely() } } }</code></pre> </div> </div> </div> </div> <div class="exampleblock testable-sample multi-language-sample"> <div class="content"> <div class="listingblock"> <div class="title">build.gradle</div> <div class="content"> <pre class="prettyprint highlight"><code data-lang="groovy">normalization { runtimeClasspath { metaInf { ignoreCompletely() } } }</code></pre> </div> </div> </div> </div> </div> </div> </div> </div> <div class="sect2"> <h3 id="sec:custom_up_to_date_logic"><a class="anchor" href="#sec:custom_up_to_date_logic"></a><a class="link" href="#sec:custom_up_to_date_logic">Providing custom up-to-date logic</a></h3> <div class="paragraph"> <p>Gradle automatically handles up-to-date checks for output files and directories, but what if the task output is something else entirely? Perhaps it’s an update to a web service or a database table. Gradle has no way of knowing how to check whether the task is up to date in such cases.</p> </div> <div class="paragraph"> <p>That’s where the <code>upToDateWhen()</code> method on <code>TaskOutputs</code> comes in. This takes a predicate function that is used to determine whether a task is up to date or not. For example, you could read the version number of your database schema from the database. Or, you could check whether a particular record in a database table exists or has changed for example.</p> </div> <div class="paragraph"> <p>Just be aware that up-to-date checks should <em>save</em> you time. Don’t add checks that cost as much or more time than the standard execution of the task. In fact, if a task ends up running frequently anyway, because it’s rarely up to date, then it may not be worth having no up-to-date checks at all as described in <a href="#sec:disable-state-tracking">Disabling up-to-date checks</a>. Remember that your checks will always run if the task is in the execution task graph.</p> </div> <div class="paragraph"> <p>One common mistake is to use <code>upToDateWhen()</code> instead of <code>Task.onlyIf()</code>. If you want to skip a task on the basis of some condition unrelated to the task inputs and outputs, then you should use <code>onlyIf()</code>. For example, in cases where you want to skip a task when a particular property is set or not set.</p> </div> </div> </div> </div> <div class="sect1"> <h2 id="sec:stale_task_outputs"><a class="anchor" href="#sec:stale_task_outputs"></a><a class="link" href="#sec:stale_task_outputs">Stale task outputs</a></h2> <div class="sectionbody"> <div class="paragraph"> <p>When the Gradle version changes, Gradle detects that outputs from tasks that ran with older versions of Gradle need to be removed to ensure that the newest version of the tasks are starting from a known clean state.</p> </div> <div class="admonitionblock note"> <table> <tr> <td class="icon"> <i class="fa icon-note" title="Note"></i> </td> <td class="content"> Automatic clean-up of stale output directories has only been implemented for the output of source sets (Java/Groovy/Scala compilation). </td> </tr> </table> </div> </div> </div> </div> <div id="feedback-container" class="feedback-container"> <div class="feedback-buttons"> <label id="feedback-container-label"> Was this page helpful?</label> <button id="thumbs-up" onclick="showFeedbackForm(true)">  <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="24px" height="24px" viewBox="0 0 24 24" version="1.1"> <g id="surface1"> <path style=" stroke:none;fill-rule:nonzero;fill:rgb(10.588235%,65.882353%,79.607843%);fill-opacity:1;" d="M 3 21.375 C 3 21.582031 2.832031 21.75 2.625 21.75 C 2.417969 21.75 2.25 21.582031 2.25 21.375 C 2.25 21.167969 2.417969 21 2.625 21 C 2.832031 21 3 21.167969 3 21.375 Z M 3 21.375 "/> <path style=" stroke:none;fill-rule:nonzero;fill:rgb(10.588235%,65.882353%,79.607843%);fill-opacity:1;" d="M 5.25 9.75 C 5.25 8.921875 4.578125 8.25 3.75 8.25 L 1.5 8.25 C 0.671875 8.25 0 8.921875 0 9.75 L 0 22.5 C 0 23.328125 0.671875 24 1.5 24 L 3.75 24 C 4.578125 24 5.25 23.328125 5.25 22.5 Z M 2.625 22.5 C 2.003906 22.5 1.5 21.996094 1.5 21.375 C 1.5 20.753906 2.003906 20.25 2.625 20.25 C 3.246094 20.25 3.75 20.753906 3.75 21.375 C 3.75 21.996094 3.246094 22.5 2.625 22.5 Z M 2.625 22.5 "/> <path style=" stroke:none;fill-rule:nonzero;fill:rgb(10.588235%,65.882353%,79.607843%);fill-opacity:1;" d="M 24 10.5 C 24 9.257812 22.992188 8.25 21.75 8.25 L 15.367188 8.25 L 15.375 8.25 L 16.125 1.5 C 16.203125 0.679688 15.640625 0 14.8125 0 L 13.3125 0 C 12.375 0 11.984375 0.65625 11.625 1.5 L 8.625 8.25 C 7.816406 10.1875 6.75 10.5 6 10.5 L 6 21.832031 C 6.449219 21.9375 7.019531 22.1875 7.578125 22.761719 C 8.746094 23.960938 10.140625 24 10.875 24 L 19.5 24 C 20.742188 24 21.75 22.992188 21.75 21.75 C 21.75 21.101562 21.472656 20.515625 21.035156 20.105469 C 21.890625 19.789062 22.5 18.964844 22.5 18 C 22.5 17.351562 22.222656 16.765625 21.785156 16.355469 C 22.640625 16.039062 23.25 15.214844 23.25 14.25 C 23.25 13.601562 22.972656 13.015625 22.535156 12.605469 C 23.390625 12.289062 24 11.464844 24 10.5 Z M 24 10.5 "/> </g> </svg> </button> <button id="thumbs-down" onclick="showFeedbackForm(false)">  <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="24px" height="24px" viewBox="0 0 24 24" version="1.1"> <g id="surface1"> <path style=" stroke:none;fill-rule:nonzero;fill:rgb(10.588235%,65.882353%,79.607843%);fill-opacity:1;" d="M 3 13.125 C 3 13.332031 2.832031 13.5 2.625 13.5 C 2.417969 13.5 2.25 13.332031 2.25 13.125 C 2.25 12.917969 2.417969 12.75 2.625 12.75 C 2.832031 12.75 3 12.917969 3 13.125 Z M 3 13.125 "/> <path style=" stroke:none;fill-rule:nonzero;fill:rgb(10.588235%,65.882353%,79.607843%);fill-opacity:1;" d="M 0 1.5 C 0 0.671875 0.671875 0 1.5 0 L 3.75 0 C 4.578125 0 5.25 0.671875 5.25 1.5 L 5.25 14.25 C 5.25 15.078125 4.578125 15.75 3.75 15.75 L 1.5 15.75 C 0.671875 15.75 0 15.078125 0 14.25 Z M 2.625 14.25 C 3.246094 14.25 3.75 13.746094 3.75 13.125 C 3.75 12.503906 3.246094 12 2.625 12 C 2.003906 12 1.5 12.503906 1.5 13.125 C 1.5 13.746094 2.003906 14.25 2.625 14.25 Z M 2.625 14.25 "/> <path style=" stroke:none;fill-rule:nonzero;fill:rgb(10.588235%,65.882353%,79.607843%);fill-opacity:1;" d="M 24 13.5 C 24 14.742188 22.992188 15.75 21.75 15.75 L 15.367188 15.75 L 15.375 15.75 L 16.125 22.5 C 16.203125 23.320312 15.640625 24 14.8125 24 L 13.3125 24 C 12.375 24 11.984375 23.34375 11.625 22.5 L 8.625 15.75 C 7.816406 13.8125 6.75 13.5 6 13.5 L 6 2.167969 C 6.449219 2.0625 7.019531 1.8125 7.578125 1.238281 C 8.746094 0.0390625 10.140625 0 10.875 0 L 19.5 0 C 20.742188 0 21.75 1.007812 21.75 2.25 C 21.75 2.898438 21.472656 3.484375 21.035156 3.894531 C 21.890625 4.210938 22.5 5.035156 22.5 6 C 22.5 6.648438 22.222656 7.234375 21.785156 7.644531 C 22.640625 7.960938 23.25 8.785156 23.25 9.75 C 23.25 10.398438 22.972656 10.984375 22.535156 11.394531 C 23.390625 11.710938 24 12.535156 24 13.5 Z M 24 13.5 "/> </g> </svg> </button> </div> <div id="feedback-form" class="hidden-feedback-form"> <form> <label for="feedback">Additional Feedback:</label> <textarea id="feedback" name="feedback" rows="4" cols="50" placeholder="Tell us more about your experience."></textarea> <div>You can <a href="https://github.com/gradle/gradle/issues/new?assignees=&labels=a%3Adocumentation%2Cto-triage&projects=&template=40_contributor_documentation.yml"> submit issues</a> directly on Github.</div> <button id="feedback-button" type="button" onclick="submitAdditionalFeedback()" disabled> Submit Feedback <div class="animate-flicker"></div> </button> </form> </div> </div><script src="https://cdnjs.cloudflare.com/ajax/libs/prettify/r298/run_prettify.min.js"></script> </div>  <footer class="site-layout__footer site-footer" itemscope="itemscope" itemtype="https://schema.org/WPFooter"> <nav class="site-footer__navigation" itemtype="https://schema.org/SiteNavigationElement"> <section class="site-footer__links"> <div class="site-footer__link-group"> <header><strong>Docs</strong></header> <ul class="site-footer__links-list"> <li itemprop="name"><a href="/release-notes.html" itemprop="url">Release Notes</a></li> <li itemprop="name"><a href="/dsl/" itemprop="url">Groovy DSL</a></li> <li itemprop="name"><a href="/kotlin-dsl/" itemprop="url">Kotlin DSL</a></li> <li itemprop="name"><a href="/javadoc/" itemprop="url">Javadoc</a></li> </ul> </div> <div class="site-footer__link-group"> <header><strong>News</strong></header> <ul class="site-footer__links-list"> <li itemprop="name"><a href="https://blog.gradle.org/" itemprop="url">Blog</a></li> <li itemprop="name"><a href="https://newsletter.gradle.org/" itemprop="url">Newsletter</a></li> <li itemprop="name"><a href="https://twitter.com/gradle" itemprop="url">Twitter</a></li> <li itemprop="name"><a href="https://status.gradle.com/" itemprop="url">Status</a></li> </ul> </div> <div class="site-footer__link-group"> <header><strong>Products</strong></header> <ul class="site-footer__links-list"> <li itemprop="name"><a href="https://gradle.com/develocity/" itemprop="url">Develocity</a></li> <li itemprop="name"><a href="https://gradle.com/build-scans/" itemprop="url">Build Scan™</a></li> <li itemprop="name"><a href="https://gradle.com/build-cache/" itemprop="url">Build Cache</a></li> <li itemprop="name"><a href="https://gradle.org/services/" itemprop="url">Services</a></li> </ul> </div> <div class="site-footer__link-group"> <header><strong>Get Help</strong></header> <ul class="site-footer__links-list"> <li itemprop="name"><a href="https://discuss.gradle.org/c/help-discuss" itemprop="url">Forums</a></li> <li itemprop="name"><a href="https://github.com/gradle/" itemprop="url">GitHub</a></li> <li itemprop="name"><a href="https://gradle.org/training/" itemprop="url">Events</a></li> <li itemprop="name"><a href="https://dpeuniversity.gradle.com/" itemprop="url">DPE University</a></li> </ul> </div> </section> <section class="site-footer__subscribe-newsletter" id="newsletter-form-container"> <header class="newsletter-form__header"><h5>Stay <code>UP-TO-DATE</code> on new features and news</h5></header> <p class="disclaimer">By entering your email, you agree to our <a href="https://gradle.com/legal/terms-of-service/">Terms</a> and <a href="https://gradle.com/legal/privacy/">Privacy Policy</a>, including receipt of emails. You can unsubscribe at any time.</p> <div class="newsletter-form__container"> <form id="newsletter-form" class="newsletter-form" action="https://go.gradle.com/l/68052/2018-09-07/bk6wml" method="post"> <input id="email" class="email" name="email" type="email" placeholder="name@email.com" pattern="[^@\s]+@[^@\s]+\.[^@\s]+" maxlength="255" required=""/> <button id="submit" class="submit" type="submit">Subscribe</button> </form> </div> </section> </nav> </footer> </div>  </main> <div class="site-footer-secondary"> <div class="site-footer-secondary__contents"> <div class="site-footer__copy">© <a href="https://gradle.com">Gradle Inc.</a> <time>2023</time> All rights reserved. </div> <div class="site-footer__logo"><a href="/"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 90 66.06"> <title>Gradle</title> <path class="cls-1" d="M85.11,4.18a14.27,14.27,0,0,0-19.83-.34,1.38,1.38,0,0,0,0,2L67,7.6a1.36,1.36,0,0,0,1.78.12A8.18,8.18,0,0,1,79.5,20.06C68.17,31.38,53.05-.36,18.73,16a4.65,4.65,0,0,0-2,6.54l5.89,10.17a4.64,4.64,0,0,0,6.3,1.73l.14-.08-.11.08L31.53,33a60.29,60.29,0,0,0,8.22-6.13,1.44,1.44,0,0,1,1.87-.06h0a1.34,1.34,0,0,1,.06,2A61.61,61.61,0,0,1,33,35.34l-.09,0-2.61,1.46a7.34,7.34,0,0,1-3.61.94,7.45,7.45,0,0,1-6.47-3.71l-5.57-9.61C4,32-2.54,46.56,1,65a1.36,1.36,0,0,0,1.33,1.11H8.61A1.36,1.36,0,0,0,10,64.87a9.29,9.29,0,0,1,18.42,0,1.35,1.35,0,0,0,1.34,1.19H35.9a1.36,1.36,0,0,0,1.34-1.19,9.29,9.29,0,0,1,18.42,0A1.36,1.36,0,0,0,57,66.06H63.1a1.36,1.36,0,0,0,1.36-1.34c.14-8.6,2.46-18.48,9.07-23.43C96.43,24.16,90.41,9.48,85.11,4.18ZM61.76,30.05l-4.37-2.19h0a2.74,2.74,0,1,1,4.37,2.2Z"/> </svg> </a></div> <div class="site-footer-secondary__links"> <a href="https://gradle.com/careers/">Careers</a> | <a href="https://gradle.com/legal/privacy/">Privacy</a> | <a href="https://gradle.com/legal/terms-of-service/">Terms of Service</a> | <a href="https://gradle.org/contact/">Contact</a> </div> </div> </div> </div>  <script type="text/javascript"> // Polyfill Element.matches() if (!Element.prototype.matches) { Element.prototype.matches = Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector; } // Polyfill Element.closest() if (!Element.prototype.closest) { Element.prototype.closest = function (s) { var el = this; if (!document.documentElement.contains(el)) return null; do { if (typeof el.matches === "function" && el.matches(s)) return el; el = el.parentElement || el.parentNode; } while (el !== null); return null; }; } function getCurrentChapterFileName(givenUrl) { var currentChapterFileName = givenUrl.substr(givenUrl.lastIndexOf("/") + 1); if (currentChapterFileName === "index.html" || currentChapterFileName === "") { currentChapterFileName = givenUrl.substr(0, givenUrl.lastIndexOf("/")); currentChapterFileName = currentChapterFileName.substr(currentChapterFileName.lastIndexOf("/") + 1) + "/index.html"; } return currentChapterFileName; } // The media query indicating that a device is a desktop. // The `min-width: 64rem` definition should be aligned to // the one of `css/manual.css`. const desktopMediaQuery = window.matchMedia("screen and (min-width: 64rem)"); [].forEach.call(document.querySelectorAll(".docs-navigation a[href$='/" + getCurrentChapterFileName(window.location.pathname) + "']"), function (link) { // Add "active" to all links same as current URL link.classList.add("active"); // Expand all parent navigation var parentListEl = link.closest("li"); while (parentListEl !== null) { var dropDownEl = parentListEl.querySelector(".nav-dropdown"); if (dropDownEl !== null) { dropDownEl.classList.add("expanded"); } parentListEl = parentListEl.parentNode.closest("li"); } // Only scroll if the device is a desktop. // // Mobile's `docs-navigation` is always at bottom of `content`, // so we should not slide down to where `docs-navigation` lays. if (desktopMediaQuery.matches) { // Scroll to center of the page link.scrollIntoView({behavior: 'auto', block: 'center', inline: 'center'}) } }); // Expand/contract multi-level side navigation [].forEach.call(document.querySelectorAll(".docs-navigation .nav-dropdown"), function registerSideNavActions(collapsibleElement) { collapsibleElement.addEventListener("click", function toggleExpandedSideNav(evt) { evt.preventDefault(); evt.target.classList.toggle("expanded"); evt.target.setAttribute("aria-expanded", evt.target.classList.contains("expanded").toString()); return false; }, false); }); // Fix a weird issue making the initial screen always at the bottom. document.querySelector(".content").scrollIntoView(true); </script> </body> </html>