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href="/wiki/Special:Random" title="Load a random page [x]" accesskey="x"><span>Random page</span></a></li><li id="n-mw-discussion" class="mw-list-item"><a href="/wiki/Project:Village_Pump"><span>Village pump</span></a></li><li id="n-Sandboxlink-portlet-label" class="mw-list-item"><a href="/wiki/Project:Sandbox"><span>Sandbox</span></a></li> </ul> </div> </div> <div id="p-lang" class="vector-menu mw-portlet mw-portlet-lang" > <div class="vector-menu-heading"> In other languages </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A7%D9%84%D9%85%D9%84%D8%AD%D9%86_(%D8%A8%D8%B1%D9%85%D8%AC%D9%8A%D8%A9)" title="الملحن (برمجية) – Arabic" lang="ar" hreflang="ar" data-title="الملحن (برمجية)" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Composer" title="Composer – Azerbaijani" lang="az" hreflang="az" data-title="Composer" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/Composer_(%D1%81%D0%BE%D1%84%D1%82%D1%83%D0%B5%D1%80)" title="Composer (софтуер) – Bulgarian" lang="bg" hreflang="bg" data-title="Composer (софтуер)" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Composer" title="Composer – Catalan" lang="ca" hreflang="ca" data-title="Composer" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Composer" title="Composer – Czech" lang="cs" hreflang="cs" data-title="Composer" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Composer_(Paketverwaltung)" title="Composer (Paketverwaltung) – German" lang="de" hreflang="de" data-title="Composer (Paketverwaltung)" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Composer_(software)" title="Composer (software) – English" lang="en" hreflang="en" data-title="Composer (software)" data-language-autonym="English" data-language-local-name="English" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Composer" title="Composer – Spanish" lang="es" hreflang="es" data-title="Composer" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%DA%A9%D8%A7%D9%85%D9%BE%D9%88%D8%B2%D8%B1" title="کامپوزر – Persian" lang="fa" hreflang="fa" data-title="کامپوزر" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Composer_(logiciel)" title="Composer (logiciel) – French" lang="fr" hreflang="fr" data-title="Composer (logiciel)" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Composer" title="Composer – Indonesian" lang="id" hreflang="id" data-title="Composer" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Composer_(software)" title="Composer (software) – Italian" lang="it" hreflang="it" data-title="Composer (software)" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/Composer" title="Composer – Japanese" lang="ja" hreflang="ja" data-title="Composer" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%BB%B4%ED%8F%AC%EC%A0%80_(%EC%86%8C%ED%94%84%ED%8A%B8%EC%9B%A8%EC%96%B4)" title="컴포저 (소프트웨어) – Korean" lang="ko" hreflang="ko" data-title="컴포저 (소프트웨어)" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Composer" title="Composer – Polish" lang="pl" hreflang="pl" data-title="Composer" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Composer" title="Composer – Russian" lang="ru" hreflang="ru" data-title="Composer" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9A%D0%BE%D0%BC%D0%BF%D0%BE%D0%B7%D0%B5%D1%80_(%D1%81%D0%BE%D1%84%D1%82%D0%B2%D0%B5%D1%80)" title="Композер (софтвер) – Serbian" lang="sr" hreflang="sr" data-title="Композер (софтвер)" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Composer" title="Composer – Turkish" lang="tr" hreflang="tr" data-title="Composer" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/Composer" title="Composer – Ukrainian" lang="uk" hreflang="uk" data-title="Composer" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/Composer_(%E8%BB%9F%E9%AB%94)" title="Composer (軟體) – Chinese" lang="zh" hreflang="zh" data-title="Composer (軟體)" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q15252222#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/MediaWiki" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/mediawikiwiki.svg" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> 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class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Search mediawiki.org" aria-label="Search mediawiki.org" autocapitalize="sentences" title="Search MediaWiki [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Special:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Search</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Personal tools"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-uls" class="mw-list-item active user-links-collapsible-item"><a data-mw="interface" href="#" class="uls-trigger cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet"><span class="vector-icon mw-ui-icon-wikimedia-language mw-ui-icon-wikimedia-wikimedia-language"></span> <span>English</span></a> </li> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Appearance" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Appearance</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=www.mediawiki.org&uselang=en" class=""><span>Donate</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:CreateAccount&returnto=Composer" title="You are encouraged to create an account and log in; however, it is not mandatory" class=""><span>Create account</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:UserLogin&returnto=Composer" title="You are encouraged to log in; however, it is not mandatory [o]" accesskey="o" class=""><span>Log in</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="More options" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Personal tools" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Personal tools</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=www.mediawiki.org&uselang=en"><span>Donate</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:CreateAccount&returnto=Composer" title="You are encouraged to create an account and log in; however, it is not mandatory"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Create account</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:UserLogin&returnto=Composer" title="You are encouraged to log in; however, it is not mandatory [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Log in</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pages for logged out editors <a href="/wiki/Help:Introduction" aria-label="Learn more about editing"><span>learn more</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:MyContributions" title="A list of edits made from this IP address [y]" accesskey="y"><span>Contributions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:MyTalk" title="Discussion about edits from this IP address [n]" accesskey="n"><span>Talk</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Contents" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Contents</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Beginning</div> </a> </li> <li id="toc-Installing_Composer" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Installing_Composer"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Installing Composer</span> </div> </a> <button aria-controls="toc-Installing_Composer-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Installing Composer subsection</span> </button> <ul id="toc-Installing_Composer-sublist" class="vector-toc-list"> <li id="toc-On_Unix/Linux_and_macOS" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#On_Unix/Linux_and_macOS"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>On Unix/Linux and macOS</span> </div> </a> <ul id="toc-On_Unix/Linux_and_macOS-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-On_Windows" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#On_Windows"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>On Windows</span> </div> </a> <ul id="toc-On_Windows-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Local_installation" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Local_installation"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>Local installation</span> </div> </a> <ul id="toc-Local_installation-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Upgrading_Composer" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Upgrading_Composer"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Upgrading Composer</span> </div> </a> <button aria-controls="toc-Upgrading_Composer-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Upgrading Composer subsection</span> </button> <ul id="toc-Upgrading_Composer-sublist" class="vector-toc-list"> <li id="toc-Composer_1.x" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Composer_1.x"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Composer 1.x</span> </div> </a> <ul id="toc-Composer_1.x-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Composer_2.x" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Composer_2.x"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Composer 2.x</span> </div> </a> <ul id="toc-Composer_2.x-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Usage_in_MediaWiki_core" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Usage_in_MediaWiki_core"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Usage in MediaWiki core</span> </div> </a> <ul id="toc-Usage_in_MediaWiki_core-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Using_composer-merge-plugin" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Using_composer-merge-plugin"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Using composer-merge-plugin</span> </div> </a> <ul id="toc-Using_composer-merge-plugin-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Resources" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Resources"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Resources</span> </div> </a> <ul id="toc-Resources-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Table of Contents" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Composer</span></h1> <div class="mw-indicators"> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Composer" title="View the content page [c]" accesskey="c"><span>Page</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:Composer" rel="discussion" title="Discussion about the content page [t]" accesskey="t"><span>Discussion</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Change language variant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">English</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Views"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Composer"><span>Read</span></a></li><li id="ca-viewsource" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Composer&action=edit" title="This page is protected.
You can view its source [e]" accesskey="e"><span>View source</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Composer&action=history" title="Past revisions of this page [h]" accesskey="h"><span>View history</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Tools" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Tools</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Tools</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">hide</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Composer"><span>Read</span></a></li><li id="ca-more-viewsource" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Composer&action=edit"><span>View source</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Composer&action=history"><span>View history</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/Composer" title="A list of all wiki pages that link here [j]" accesskey="j"><span>What links here</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:RecentChangesLinked/Composer" rel="nofollow" title="Recent changes in pages linked from this page [k]" accesskey="k"><span>Related changes</span></a></li><li id="t-upload" class="mw-list-item"><a href="//commons.wikimedia.org/wiki/Special:UploadWizard" title="Upload files [u]" accesskey="u"><span>Upload file</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Composer&oldid=6972340" title="Permanent link to this revision of this page"><span>Permanent link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Composer&action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:CiteThisPage&page=Composer&id=6972340&wpFormIdentifier=titleform" title="Information on how to cite this page"><span>Cite this page</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fwww.mediawiki.org%2Fwiki%2FComposer"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fwww.mediawiki.org%2Fwiki%2FComposer"><span>Download QR code</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Print/export </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Special:Book&bookcmd=book_creator&referer=Composer"><span>Create a book</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&page=Composer&action=show-download-screen"><span>Download as PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Composer&printable=yes" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> In other projects </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Composer_(software)" hreflang="en"><span>Wikimedia Commons</span></a></li><li class="wb-otherproject-link wb-otherproject-wikipedia mw-list-item"><a href="https://en.wikipedia.org/wiki/Composer_(software)" hreflang="en"><span>Wikipedia</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q15252222" title="Link to connected data repository item [g]" accesskey="g"><span>Wikidata item</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div id="siteSub" class="noprint">From mediawiki.org</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-pt-translate-header noprint nomobile" dir="ltr" lang="en"><a href="/w/index.php?title=Special:Translate&group=page-Composer&action=page&filter=&action_source=translate_page" title="Special:Translate">Translate this page</a></div><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="mw-pt-languages noprint navigation-not-searchable" lang="en" dir="ltr"><div class="mw-pt-languages-label">Languages:</div><ul class="mw-pt-languages-list"><li><a href="/wiki/Composer/de" class="mw-pt-progress mw-pt-progress--high" title="Composer (98% translated)" lang="de" dir="ltr">Deutsch</a></li> <li><span class="mw-pt-languages-ui mw-pt-languages-selected mw-pt-progress mw-pt-progress--complete" lang="en" dir="ltr">English</span></li> <li><a href="/wiki/Composer/nl" class="mw-pt-progress mw-pt-progress--complete" title="Composer/nl (100% translated)" lang="nl" dir="ltr">Nederlands</a></li> <li><a href="/wiki/Composer/tr" class="mw-pt-progress mw-pt-progress--high" title="Composer (88% translated)" lang="tr" dir="ltr">Türkçe</a></li> <li><a href="/wiki/Composer/es" class="mw-pt-progress mw-pt-progress--med" title="Composer (50% translated)" lang="es" dir="ltr">español</a></li> <li><a href="/wiki/Composer/fr" class="mw-pt-progress mw-pt-progress--complete" title="Composer (100% translated)" lang="fr" dir="ltr">français</a></li> <li><a href="/wiki/Composer/hu" class="mw-pt-progress mw-pt-progress--low" title="Composer (5% translated)" lang="hu" dir="ltr">magyar</a></li> <li><a href="/wiki/Composer/pt" class="mw-pt-progress mw-pt-progress--med" title="Composer (25% translated)" lang="pt" dir="ltr">português</a></li> <li><a href="/wiki/Composer/cs" class="mw-pt-progress mw-pt-progress--low" title="Composer (4% translated)" lang="cs" dir="ltr">čeština</a></li> <li><a href="/wiki/Composer/ru" class="mw-pt-progress mw-pt-progress--high" title="Composer (71% translated)" lang="ru" dir="ltr">русский</a></li> <li><a href="/wiki/Composer/uk" class="mw-pt-progress mw-pt-progress--low" title="Composer (11% translated)" lang="uk" dir="ltr">українська</a></li> <li><a href="/wiki/Composer/bn" class="mw-pt-progress mw-pt-progress--med" title="Composer/bn (38% translated)" lang="bn" dir="ltr">বাংলা</a></li> <li><a href="/wiki/Composer/zh" class="mw-pt-progress mw-pt-progress--med" title="Composer (34% translated)" lang="zh" dir="ltr">中文</a></li> <li><a href="/wiki/Composer/ja" class="mw-pt-progress mw-pt-progress--high" title="Composer (98% translated)" lang="ja" dir="ltr">日本語</a></li></ul></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File"><a href="/wiki/File:Logo-composer-transparent.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/2/26/Logo-composer-transparent.png" decoding="async" width="300" height="356" class="mw-file-element" data-file-width="300" data-file-height="356"/></a><figcaption></figcaption></figure> <p><b><a href="https://en.wikipedia.org/wiki/Composer_(software)" class="extiw" title="w:Composer (software)">Composer</a></b> is a dependency manager for PHP libraries. Starting with <a href="/wiki/Special:MyLanguage/MediaWiki_1.25" title="Special:MyLanguage/MediaWiki 1.25">MediaWiki 1.25</a><span style="display:none"><a href="/wiki/MediaWiki_1.25" title="MediaWiki 1.25"> </a></span>, MediaWiki core's external library dependencies are being managed with Composer. In addition, it can be used to manage the installation of MediaWiki extensions (available since <a href="/wiki/Special:MyLanguage/MediaWiki_1.22" title="Special:MyLanguage/MediaWiki 1.22">MediaWiki 1.22</a><span style="display:none"><a href="/wiki/MediaWiki_1.22" title="MediaWiki 1.22"> </a></span>). However, this is currently not well-supported. This may change in the future. </p> <meta property="mw:PageProp/toc"/> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Installing_Composer" data-mw-thread-id="h-Installing_Composer"><span data-mw-comment-start="" id="h-Installing_Composer"></span>Installing Composer<span data-mw-comment-end="h-Installing_Composer"></span></h2></div> <style data-mw-deduplicate="TemplateStyles:r6870138">.mw-parser-output table.ambox{margin:0 10%;width:unset;border:1px solid var(--border-color-base,#a2a9b1);border-left:10px solid var(--border-color-progressive,#36c);background-color:var(--background-color-neutral-subtle,#f8f9fa);box-sizing:border-box}.mw-parser-output table.ambox+table.ambox,.mw-parser-output table.ambox+link+table.ambox,.mw-parser-output table.ambox+style+table.ambox{margin-top:-1px}.mw-parser-output .ambox td.mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox th.mbox-text,.mw-parser-output .ambox td.mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox td.mbox-image{padding:2px 0 2px 0.5em}.mw-parser-output .ambox td.mbox-imageright{padding:2px 0.5em 2px 0}.mw-parser-output table.ambox-notice{border-left-color:var(--border-color-progressive,#36c)}.mw-parser-output table.ambox-speedy{background-color:var(--background-color-error-subtle,#fee7e6)}.mw-parser-output table.ambox-delete,.mw-parser-output table.ambox-speedy{border-left-color:var(--background-color-error--active,#b32424)}.mw-parser-output table.ambox-content{border-left-color:#f28500}.mw-parser-output table.ambox-style{border-left-color:#fc3}.mw-parser-output table.ambox-move{border-left-color:#9932cc}.mw-parser-output table.ambox-protection{border-left-color:var(--border-color-base,#a2a9b1)}html body.mediawiki .mw-parser-output .ambox.mbox-small{clear:right;float:right;margin:4px 0 4px 1em;box-sizing:border-box;width:238px;font-size:88%;line-height:1.25em}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;box-sizing:border-box;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}</style><table class="ambox-notice box-Notice ambox plainlinks metadata" role="presentation"><tbody><tr><td class="mbox-image"><div style="width:52px"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ec/OOjs_UI_icon_information-progressive.svg/40px-OOjs_UI_icon_information-progressive.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ec/OOjs_UI_icon_information-progressive.svg/60px-OOjs_UI_icon_information-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ec/OOjs_UI_icon_information-progressive.svg/80px-OOjs_UI_icon_information-progressive.svg.png 2x" data-file-width="20" data-file-height="20"/></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">MediaWiki supports Composer 2.x as of MediaWiki 1.35.2 and later.</div></td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="On_Unix/Linux_and_macOS" data-mw-thread-id="h-On_Unix/Linux_and_macOS-Installing_Composer"><span id="On_Unix.2FLinux_and_macOS"></span><span data-mw-comment-start="" id="h-On_Unix/Linux_and_macOS-Installing_Composer"></span>On Unix/Linux and macOS<span data-mw-comment-end="h-On_Unix/Linux_and_macOS-Installing_Composer"></span></h3></div> <p>There are multiple ways to <a rel="nofollow" class="external text" href="https://getcomposer.org/download">install Composer</a>, besides the most obvious way, <code>sudo apt install composer</code>. </p><p>Only Composer 1.x is supported by MediaWiki 1.31, 1.35.0 and 1.35.1. To grab the latest Composer 1.x stable release: </p> <div class="mw-highlight mw-highlight-lang-bash mw-content-ltr" dir="ltr"><pre><span></span>wget<span class="w"> </span>-cO<span class="w"> </span>-<span class="w"> </span>https://getcomposer.org/composer-1.phar<span class="w"> </span>><span class="w"> </span>composer.phar </pre></div> <p>Composer 2.x and Composer 1.x are supported by MediaWiki >= 1.35.2 (along with the REL1_36 branch and master). To grab the latest Composer 2.x stable release: </p> <div class="mw-highlight mw-highlight-lang-bash mw-content-ltr" dir="ltr"><pre><span></span>wget<span class="w"> </span>-cO<span class="w"> </span>-<span class="w"> </span>https://getcomposer.org/composer-2.phar<span class="w"> </span>><span class="w"> </span>composer.phar </pre></div> <p>For users on macOS, you can use <a rel="nofollow" class="external text" href="https://brew.sh/">Homebrew</a> to install Composer. Note this will install version Composer 2.x, so depending on the version of MediaWiki you are using, you may need to follow the <code>wget</code> instructions above instead to download Composer 1.x. To install using <code>brew</code>: </p> <div class="mw-highlight mw-highlight-lang-bash mw-content-ltr" dir="ltr"><pre><span></span>brew<span class="w"> </span>install<span class="w"> </span>composer </pre></div> <p>If that doesn't work, or you do not have Homebrew installed, you can try: </p> <div class="mw-highlight mw-highlight-lang-bash mw-content-ltr" dir="ltr"><pre><span></span>php<span class="w"> </span>-r<span class="w"> </span><span class="s2">"readfile('https://getcomposer.org/installer');"</span><span class="w"> </span><span class="p">|</span><span class="w"> </span>php </pre></div> <p>Toolforge and the extension distributor use the copy of Composer contained in the "integration/composer" git repo. </p><p>Once Composer is installed, you can run commands via the downloaded phar: </p> <div class="mw-highlight mw-highlight-lang-bash mw-content-ltr" dir="ltr"><pre><span></span>php<span class="w"> </span>composer.phar<span class="w"> </span>someCommand </pre></div> <p>You may want to move the phar into your path so it can be used as a normal executable: </p> <div class="mw-highlight mw-highlight-lang-bash mw-content-ltr" dir="ltr"><pre><span></span>mv<span class="w"> </span>composer.phar<span class="w"> </span>/usr/local/bin/composer composer<span class="w"> </span>someCommand </pre></div> <p>If the <i>mv</i> command fails due to permissions, execute it again with <i>sudo</i>. </p> <div class="mw-highlight mw-highlight-lang-bash mw-content-ltr" dir="ltr"><pre><span></span>sudo<span class="w"> </span>mv<span class="w"> </span>composer.phar<span class="w"> </span>/usr/local/bin/composer composer<span class="w"> </span>someCommand </pre></div> <div class="mw-heading mw-heading3"><h3 id="On_Windows" data-mw-thread-id="h-On_Windows-Installing_Composer"><span data-mw-comment-start="" id="h-On_Windows-Installing_Composer"></span>On Windows<span data-mw-comment-end="h-On_Windows-Installing_Composer"></span></h3></div> <p>Just download and run the installer from the <a rel="nofollow" class="external text" href="https://getcomposer.org/download">download page</a>. If you prefer manual installation, you can follow the above steps except that Windows doesn’t have wget (or APT or Homebrew) by default, and there is no /usr/local/bin directory. In these cases, you can just download <a rel="nofollow" class="external text" href="https://getcomposer.org/composer-1.phar">composer-1.phar</a> in your web browser and then rename it to <i>composer.phar</i>. </p> <div class="mw-heading mw-heading3"><h3 id="Local_installation" data-mw-thread-id="h-Local_installation-Installing_Composer"><span data-mw-comment-start="" id="h-Local_installation-Installing_Composer"></span>Local installation<span data-mw-comment-end="h-Local_installation-Installing_Composer"></span></h3></div> <p>You're not out of luck if you don't have permissions to run Composer on the server. It is also possible to download the MediaWiki folder to your local machine, install and run Composer, and transfer the files back to the server. </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Upgrading_Composer" data-mw-thread-id="h-Upgrading_Composer"><span data-mw-comment-start="" id="h-Upgrading_Composer"></span>Upgrading Composer<span data-mw-comment-end="h-Upgrading_Composer"></span></h2></div> <div class="mw-heading mw-heading3"><h3 id="Composer_1.x" data-mw-thread-id="h-Composer_1.x-Upgrading_Composer"><span data-mw-comment-start="" id="h-Composer_1.x-Upgrading_Composer"></span>Composer 1.x<span data-mw-comment-end="h-Composer_1.x-Upgrading_Composer"></span></h3></div> <p>If you want to upgrade Composer to the latest 1.x stable (or downgrade from 2.x stable), you can use: </p> <div class="mw-highlight mw-highlight-lang-bash mw-content-ltr" dir="ltr"><pre><span></span>composer<span class="w"> </span>self-update<span class="w"> </span>--1 </pre></div> <p>If the update command fails due to permissions, execute it again with <i>sudo</i>. </p> <div class="mw-highlight mw-highlight-lang-bash mw-content-ltr" dir="ltr"><pre><span></span>sudo<span class="w"> </span>composer<span class="w"> </span>self-update<span class="w"> </span>--1 </pre></div> <p>If you are on a really old version of composer, it may not have the <code>--1</code> parameter. In this case, you might want to run <code>self-update</code> twice. The first may update it to 2.x, so the second will downgrade it to the latest version of 1.x. </p> <div class="mw-highlight mw-highlight-lang-bash mw-content-ltr" dir="ltr"><pre><span></span>composer<span class="w"> </span>self-update composer<span class="w"> </span>self-update<span class="w"> </span>--1 </pre></div> <div class="mw-heading mw-heading3"><h3 id="Composer_2.x" data-mw-thread-id="h-Composer_2.x-Upgrading_Composer"><span data-mw-comment-start="" id="h-Composer_2.x-Upgrading_Composer"></span>Composer 2.x<span data-mw-comment-end="h-Composer_2.x-Upgrading_Composer"></span></h3></div> <p>If you are using Composer 1.x, and want to upgrade to Composer 2.x (and are using an appropriate version of MediaWiki, such as >= 1.35.2), you can use: </p> <div class="mw-highlight mw-highlight-lang-bash mw-content-ltr" dir="ltr"><pre><span></span>composer<span class="w"> </span>self-update<span class="w"> </span>--2 </pre></div> <p>If the update command fails due to permissions, execute it again with <i>sudo</i>. </p> <div class="mw-highlight mw-highlight-lang-bash mw-content-ltr" dir="ltr"><pre><span></span>sudo<span class="w"> </span>composer<span class="w"> </span>self-update<span class="w"> </span>--2 </pre></div> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Usage_in_MediaWiki_core" data-mw-thread-id="h-Usage_in_MediaWiki_core"><span data-mw-comment-start="" id="h-Usage_in_MediaWiki_core"></span>Usage in MediaWiki core<span data-mw-comment-end="h-Usage_in_MediaWiki_core"></span></h2></div> <p>MediaWiki 1.25+ depends on some external libraries which are managed with Composer. Composer creates an autoloader at <code>vendor/autoload.php</code>, which is included by <code>WebStart.php</code>. </p><p>Composer managed dependencies are bundled into tarball distributions of MediaWiki and extensions so system administrators do not need to use Composer directly. When <a href="/wiki/Special:MyLanguage/Download_from_Git#Fetch_external_libraries" title="Special:MyLanguage/Download from Git">installing MediaWiki using Git</a>, dependencies declared in <code>$IP/composer.json</code> can either be installed locally by running <code>composer update --no-dev</code> or the <code><a class="external text" href="https://gerrit.wikimedia.org/g/mediawiki/vendor">mediawiki/vendor.git</a></code> repository can be cloned to provide the same libraries used on the Wikimedia production cluster. </p> <style data-mw-deduplicate="TemplateStyles:r6651107">.mw-parser-output .note{background-position:left 7px top 50%;padding:0.5em 0.5em 0.5em 40px;margin:0.5em 0;overflow:hidden;background-color:#f8f9fa;color:#333;background-repeat:no-repeat;border:1px solid #ddd}.mw-parser-output .note-inline{display:inline-block;vertical-align:middle}.mw-parser-output .note-info{background-color:#eaf3ff;color:#333;background-image:url("https://upload.wikimedia.org/wikipedia/commons/e/ec/OOjs_UI_icon_information-progressive.svg");background-size:25px;border-color:#a3caff;padding-left:40px;min-height:25px}.mw-parser-output .note-reminder{background-color:#fff9ea;color:#333;background-image:url("https://upload.wikimedia.org/wikipedia/commons/a/a8/OOjs_UI_icon_lightbulb-yellow.svg");background-size:25px;border-color:#fc3;min-height:25px}.mw-parser-output .note-warn{background-color:#fff9ea;color:#333;background-image:url("https://upload.wikimedia.org/wikipedia/commons/3/3b/OOjs_UI_icon_alert-warning.svg");background-size:25px;border-color:#fc3;min-height:25px}.mw-parser-output .note-error{background-color:#fee7e6;color:#333;background-image:url("https://upload.wikimedia.org/wikipedia/commons/b/bf/OOjs_UI_icon_notice-destructive.svg");background-size:25px;border-color:#c33;min-height:25px}@media screen{html.skin-theme-clientpref-night .mw-parser-output .note{background-color:transparent;color:inherit}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .note{background-color:transparent;color:inherit}}</style><div role="note" class="note note-reminder"><i><a href="/wiki/Special:MyLanguage/Manual:$IP" title="Special:MyLanguage/Manual:$IP">$IP</a><span style="display:none"><a href="/wiki/Manual:$IP" title="Manual:$IP"> </a></span> stands for the Installation Path (or "directory") of your MediaWiki installation, the same directory that holds <a href="/wiki/Special:MyLanguage/Manual:LocalSettings.php" title="Special:MyLanguage/Manual:LocalSettings.php">LocalSettings.php</a><span style="display:none"><a href="/wiki/Manual:LocalSettings.php" title="Manual:LocalSettings.php"> </a></span>, <a href="/wiki/Special:MyLanguage/Manual:index.php" title="Special:MyLanguage/Manual:index.php">index.php</a><span style="display:none"><a href="/wiki/Manual:Index.php" title="Manual:Index.php"> </a></span> etc.</i>.</div> <p><br/> </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Using_composer-merge-plugin" data-mw-thread-id="h-Using_composer-merge-plugin"><span data-mw-comment-start="" id="h-Using_composer-merge-plugin"></span>Using composer-merge-plugin<span data-mw-comment-end="h-Using_composer-merge-plugin"></span></h2></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r6651107"><div role="note" class="note note-reminder"><i><a href="/wiki/Special:MyLanguage/Manual:$IP" title="Special:MyLanguage/Manual:$IP">$IP</a><span style="display:none"><a href="/wiki/Manual:$IP" title="Manual:$IP"> </a></span> stands for the Installation Path (or "directory") of your MediaWiki installation, the same directory that holds <a href="/wiki/Special:MyLanguage/Manual:LocalSettings.php" title="Special:MyLanguage/Manual:LocalSettings.php">LocalSettings.php</a><span style="display:none"><a href="/wiki/Manual:LocalSettings.php" title="Manual:LocalSettings.php"> </a></span>, <a href="/wiki/Special:MyLanguage/Manual:index.php" title="Special:MyLanguage/Manual:index.php">index.php</a><span style="display:none"><a href="/wiki/Manual:Index.php" title="Manual:Index.php"> </a></span> etc.</i>.</div> <p>MediaWiki core "owns" <code>$IP/composer.json</code> and will change the contents of that file in both tarball and Git managed updates. In order to allow local installs to use Composer to load optional libraries and/or <a href="/wiki/Special:MyLanguage/Composer/For_extensions" title="Special:MyLanguage/Composer/For extensions">manage extensions with Composer</a>, a special plugin for Composer named <a rel="nofollow" class="external text" href="https://github.com/wikimedia/composer-merge-plugin">composer-merge-plugin</a> was developed.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> This plugin and the MediaWiki core <code>composer.json</code> configuration allow a local deployment to add required extensions and libraries to a file <code>composer.local.json</code> inside the root MediaWiki directory. </p><p><code>composer.local.json</code> can also be used to install Composer managed libraries that are needed by extensions that are not installed using Composer themselves. This is only needed when the extensions are <b>not</b> installed from tarballs generated by <a href="/wiki/Special:ExtensionDistributor" title="Special:ExtensionDistributor">Extension Distributor</a>. </p><p>To enable Composer to discover and process the <code>composer.json</code> files that may be included in any and all of your locally installed extensions, add something like this to <code>$IP/composer.local.json</code>: </p> <div class="mw-highlight mw-highlight-lang-json mw-content-ltr" dir="ltr"><pre><span></span><span class="p">{</span> <span class="w"> </span><span class="nt">"extra"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span> <span class="w"> </span><span class="nt">"merge-plugin"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span> <span class="w"> </span><span class="nt">"include"</span><span class="p">:</span><span class="w"> </span><span class="p">[</span> <span class="hll"><span class="w"> </span><span class="s2">"extensions/*/composer.json"</span><span class="p">,</span> </span><span class="hll"><span class="w"> </span><span class="s2">"skins/*/composer.json"</span> </span><span class="w"> </span><span class="p">]</span> <span class="w"> </span><span class="p">}</span> <span class="w"> </span><span class="p">}</span> <span class="p">}</span> </pre></div> <p>After any changes to <code>composer.local.json</code>, you need to run <code>composer update</code> so that Composer will recalculate the dependencies and the changes will take effect. </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Resources" data-mw-thread-id="h-Resources"><span data-mw-comment-start="" id="h-Resources"></span>Resources<span data-mw-comment-end="h-Resources"></span></h2></div> <ul><li><a href="/wiki/Special:MyLanguage/Composer/For_extensions" title="Special:MyLanguage/Composer/For extensions">How to install extensions through Composer</a><span style="display:none"><a href="/wiki/Composer/For_extensions" title="Composer/For extensions"> </a></span> <ul><li><a rel="nofollow" class="external text" href="https://packagist.org/search/?type=mediawiki-extension">List of extensions that can or must be installed with Composer</a></li> <li><a href="/wiki/Special:MyLanguage/Category:Extensions_supporting_Composer" title="Special:MyLanguage/Category:Extensions supporting Composer">Category:Extensions supporting Composer</a><span style="display:none"><a href="/wiki/Category:Extensions_supporting_Composer" title="Category:Extensions supporting Composer"> </a></span></li></ul></li> <li><a href="/wiki/Special:MyLanguage/Manual:External_libraries" title="Special:MyLanguage/Manual:External libraries">How to add external libraries to MediaWiki core or extensions</a><span style="display:none"><a href="/wiki/Manual:External_libraries" title="Manual:External libraries"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Manual:Composer.json_best_practices" title="Special:MyLanguage/Manual:Composer.json best practices">Best practices when creating a composer.json</a><span style="display:none"><a href="/wiki/Manual:Composer.json_best_practices" title="Manual:Composer.json best practices"> </a></span></li> <li><a href="/wiki/Special:MyLanguage/Composer/packagist.org" title="Special:MyLanguage/Composer/packagist.org">Information about adding packages to packagist.org</a><span style="display:none"><a href="/wiki/Composer/packagist.org" class="mw-redirect" title="Composer/packagist.org"> </a></span></li> <li><a href="https://en.wikipedia.org/wiki/Composer_(software)" class="extiw" title="w:Composer (software)">w:Composer (software)</a></li></ul> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="References" data-mw-thread-id="h-References"><span data-mw-comment-start="" id="h-References"></span>References<span data-mw-comment-end="h-References"></span></h2></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><a href="https://phabricator.wikimedia.org/T67188" class="extiw" title="phabricator:T67188">task T67188</a></span> </li> </ol></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; 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</div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-56d8db5f6f-tfx9s","wgBackendResponseTime":103,"wgDiscussionToolsPageThreads":[{"headingLevel":2,"name":"h-","type":"heading","level":0,"id":"h-Installing_Composer","replies":[{"headingLevel":3,"name":"h-","type":"heading","level":0,"id":"h-On_Unix/Linux_and_macOS-Installing_Composer","replies":[]},{"headingLevel":3,"name":"h-","type":"heading","level":0,"id":"h-On_Windows-Installing_Composer","replies":[]},{"headingLevel":3,"name":"h-","type":"heading","level":0,"id":"h-Local_installation-Installing_Composer","replies":[]}]},{"headingLevel":2,"name":"h-","type":"heading","level":0,"id":"h-Upgrading_Composer","replies":[{"headingLevel":3,"name":"h-","type":"heading","level":0,"id":"h-Composer_1.x-Upgrading_Composer","replies":[]},{"headingLevel":3,"name":"h-","type":"heading","level":0,"id":"h-Composer_2.x-Upgrading_Composer","replies":[]}]},{"headingLevel":2,"name":"h-","type":"heading","level":0,"id":"h-Usage_in_MediaWiki_core","replies":[]},{"headingLevel":2,"name":"h-","type":"heading","level":0,"id":"h-Using_composer-merge-plugin","replies":[]},{"headingLevel":2,"name":"h-","type":"heading","level":0,"id":"h-Resources","replies":[]},{"headingLevel":2,"name":"h-","type":"heading","level":0,"id":"h-References","replies":[]}],"wgPageParseReport":{"discussiontools":{"limitreport-timeusage":"0.018"},"limitreport":{"cputime":"0.247","walltime":"0.359","ppvisitednodes":{"value":922,"limit":1000000},"postexpandincludesize":{"value":7584,"limit":2097152},"templateargumentsize":{"value":3531,"limit":2097152},"expansiondepth":{"value":17,"limit":100},"expensivefunctioncount":{"value":22,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":12024,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 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