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<!doctype html> <html class="writer-html5" lang="en" data-content_root="../../"> <head> <base href="https://firefox-source-docs.mozilla.org/taskcluster/howto/index.html"> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>How Tos — Firefox Source Docs documentation</title> <link rel="stylesheet" type="text/css" href="../../_static/pygments.css?v=fa44fd50"> <link rel="stylesheet" type="text/css" href="../../_static/css/theme.css?v=19f00094"> <link rel="stylesheet" type="text/css" href="../../_static/graphviz.css?v=fd3f3429"> <link rel="stylesheet" type="text/css" href="../../_static/copybutton.css?v=76b2166b"> <link rel="stylesheet" type="text/css" href="../../_static/custom_theme.css?v=dc5ed815"> <link rel="stylesheet" type="text/css" href="../../_static/design-style.1e8bd061cd6da7fc9cf755528e8ffc24.min.css?v=0a3b3ea7"> <link rel="shortcut icon" 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class="wy-side-nav-search"><a href="https://firefox--source--docs-mozilla-org.translate.goog/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB" class="icon icon-home"> Firefox Source Docs <img src="../../_static/firefox-wordmark.svg" class="logo" alt="Logo"> </a> <div> <h3>Quick search</h3> <script> (function () { var cx = "dd12886298f75dbef"; var gcse = document.createElement("script"); gcse.async = true; gcse.src = "https://cse.google.com/cse.js?cx=" + cx; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(gcse, s); })(); </script><gcse:search></gcse:search> </div> </div> <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="Navigation menu"> <p class="caption" role="heading"><span class="caption-text">Overview</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/glossary/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">A Glossary of Common Terms</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/overview/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">A Quick Guide to Mozilla Applications</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Getting Started</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/setup/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Getting Set Up To Work On The Firefox Codebase</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Working On Firefox</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/contributing/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Working on Firefox</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/bug-mgmt/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Bug Handling</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Firefox User Guide</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/devtools-user/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Firefox DevTools User Docs</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Source Code Documentation</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mots/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Governance</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/browser/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Firefox Front-end</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/dom/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">DOM</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/editor/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Editor</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/layout/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Style system (CSS) & Layout</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/gfx/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Graphics</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Processes, Threads and IPC</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/devtools/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Firefox DevTools Contributor Docs</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/toolkit/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Toolkit</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/js/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">SpiderMonkey</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/jsloader/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">JS Loader</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mobile/android/geckoview/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">GeckoView</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mobile/android/fenix/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Fenix</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mobile/android/focus-android/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Focus for Android</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/dom/bindings/webidl/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">WebIDL</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/modules/libpref/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">libpref</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/networking/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Networking</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/remote/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Remote Protocols</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/services/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Services</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/permissions/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Permissions</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/uriloader/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">File Handling</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/widget/cocoa/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Firefox on macOS</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/widget/windows/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Firefox on Windows</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/toolkit/components/ml/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Firefox AI Runtime</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/accessible/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Accessibility</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/media/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Media Playback</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/code-quality/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Code quality</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/writing-rust-code/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Writing Rust Code</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/rust-components/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Rust Components</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/profiler/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Gecko Profiler</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/performance/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Performance</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/storage/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Database bindings (SQLite, KV, …)</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/xpcom/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">XPCOM</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/nspr/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">NSPR</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/security/nss/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Network Security Services (NSS)</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/content-security/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Web Security Checks in Gecko</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">The Firefox Build System</span></p> <ul class="current"> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mach/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Mach</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/try/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Pushing to Try</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/build/buildsystem/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Build System</a></li> <li class="toctree-l1 current"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Firefox CI and Taskgraph</a> <ul class="current"> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/taskgraph.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Taskgraph Overview</a></li> <li class="toctree-l2 current"><a class="current reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#">How Tos</a> <ul> <li class="toctree-l3"><a class="reference external" href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://taskcluster-taskgraph.readthedocs.io/en/latest/howto/run-locally.html">Run Taskgraph Locally</a></li> <li class="toctree-l3"><a class="reference external" href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://taskcluster-taskgraph.readthedocs.io/en/latest/howto/debugging.html">Debug Taskgraph</a></li> <li class="toctree-l3"><a class="reference external" href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://taskcluster-taskgraph.readthedocs.io/en/latest/howto/use-fetches.html">Use Fetches</a></li> <li class="toctree-l3"><a class="reference external" href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://taskcluster-taskgraph.readthedocs.io/en/latest/howto/docker.html">Use Docker Images</a></li> <li class="toctree-l3"><a class="reference external" href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://taskcluster-taskgraph.readthedocs.io/en/latest/howto/create-actions.html">Create Actions</a></li> <li class="toctree-l3"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#common-changes">Common Changes</a> <ul> <li class="toctree-l4"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#changing-test-characteristics">Changing Test Characteristics</a></li> <li class="toctree-l4"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#adding-a-test-suite">Adding a Test Suite</a></li> <li class="toctree-l4"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#greening-up-a-new-test">Greening Up a New Test</a></li> <li class="toctree-l4"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#adding-a-new-task">Adding a New Task</a></li> </ul></li> </ul></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/transforms/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Transforms</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/optimization/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Optimization Strategies</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/cron.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Periodic Taskgraphs</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/try.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Try</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/release-promotion.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Release Promotion</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/versioncontrol.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Version Control in CI</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/config.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Taskcluster Configuration</a></li> <li class="toctree-l2"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/reference.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Reference</a></li> </ul></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/moztreedocs/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Managing Documentation</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mozbuild/vendor/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Vendoring Third Party Components</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Testing & Test Infrastructure</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/automated-testing/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Automated Testing</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/treeherder-try/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Understanding Treeherder Results</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/sheriffed-intermittents/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Sheriffed intermittent failures</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/tests-for-new-config/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Turning on Firefox tests for a new configuration</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/intermittent/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Avoiding intermittent tests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/testing-policy/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Testing Policy</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/ci-configs/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Configuration Changes</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/browser-chrome/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Browser chrome mochitests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/chrome-tests/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Chrome Tests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/marionette/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Marionette</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/geckodriver/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">geckodriver</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/test-verification/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Test Verification</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/webrender/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">WebRender Tests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/mochitest-plain/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Mochitest</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/xpcshell/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">XPCShell tests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/tps/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">TPS</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/web-platform/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">web-platform-tests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/gtest/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">GTest</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/fuzzing/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Fuzzing</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/sanitizer/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Sanitizer</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/perfdocs/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Performance Testing</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/code-coverage/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Code coverage</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing-rust-code/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Testing & Debugging Rust Code</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Releases & Updates</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Mozilla Update Infrastructure</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#watershed-updates">Watershed Updates</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#desupport-updates">Desupport Updates</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/update-verify/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Update Verify</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Localization & Internationalization</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/intl/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Internationalization</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/l10n/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Localization</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Firefox and Python</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mozbase/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">mozbase</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/python/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Using third-party Python packages</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Metrics Collected in Firefox</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/metrics/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Metrics</a></li> </ul> </div> </div> </nav> <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> <nav class="wy-nav-top" aria-label="Mobile navigation menu"><i data-toggle="wy-nav-top" class="fa fa-bars"></i> <a href="https://firefox--source--docs-mozilla-org.translate.goog/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Firefox Source Docs</a> </nav> <div class="wy-nav-content"> <div class="rst-content"> <div role="navigation" aria-label="Page navigation"> <ul class="wy-breadcrumbs"> <li><a href="https://firefox--source--docs-mozilla-org.translate.goog/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB" class="icon icon-home" aria-label="Home"></a></li> <li class="breadcrumb-item"><a href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB">Firefox CI and Taskgraph</a></li> <li class="breadcrumb-item active">How Tos</li> <li class="wy-breadcrumbs-aside"><a href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://bugzilla.mozilla.org/enter_bug.cgi?product%3DDeveloper%2BInfrastructure%26component%3DFirefox%2BSource%2BDocs%253A%2BContent%26short_desc%3DDocumentation%2Bissue%2Bon%2Btaskcluster/howto/index%26comment%3DURL%2B%3D%2Bhttps://firefox-source-docs.mozilla.org/taskcluster/howto/index.html%26bug_file_loc%3Dhttps://firefox-source-docs.mozilla.org/taskcluster/howto/index.html" rel="nofollow">Report an issue</a> / <a href="https://firefox--source--docs-mozilla-org.translate.goog/_sources/taskcluster/howto/index.rst.txt?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB" rel="nofollow"> View page source</a></li> </ul> <hr> </div> <div role="main" class="document" itemscope itemtype="http://schema.org/Article"> <div itemprop="articleBody"> <section id="how-tos"> <h1>How Tos<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#how-tos" title="Link to this heading"></a></h1> <p>All of this equipment is here to help you get your work done more efficiently. However, learning how task-graphs are generated is probably not the work you are interested in doing. This section should help you accomplish some of the more common changes to the task graph with minimal fuss.</p> <p>Taskgraph’s documentation provides many relevant how-to guides:</p> <div class="admonition note"> <p class="admonition-title">Note</p> <p>If you come across references to the <code class="docutils literal notranslate"><span class="pre">taskgraph</span></code> command, simply prepend <code class="docutils literal notranslate"><span class="pre">./mach</span></code> to the command to make it work in <code class="docutils literal notranslate"><span class="pre">mozilla-central</span></code>.</p> </div> <div class="toctree-wrapper compound"> <ul> <li class="toctree-l1"><a class="reference external" href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://taskcluster-taskgraph.readthedocs.io/en/latest/howto/run-locally.html">Run Taskgraph Locally</a></li> <li class="toctree-l1"><a class="reference external" href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://taskcluster-taskgraph.readthedocs.io/en/latest/howto/debugging.html">Debug Taskgraph</a></li> <li class="toctree-l1"><a class="reference external" href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://taskcluster-taskgraph.readthedocs.io/en/latest/howto/use-fetches.html">Use Fetches</a></li> <li class="toctree-l1"><a class="reference external" href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://taskcluster-taskgraph.readthedocs.io/en/latest/howto/docker.html">Use Docker Images</a></li> <li class="toctree-l1"><a class="reference external" href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://taskcluster-taskgraph.readthedocs.io/en/latest/howto/create-actions.html">Create Actions</a></li> </ul> </div> <p>See Taskgraph’s <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://taskcluster-taskgraph.readthedocs.io/en/latest/howto/index.html">how-to section</a> for even more guides!</p> <section id="common-changes"> <h2>Common Changes<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#common-changes" title="Link to this heading"></a></h2> <p>Additionally, here are some tips for common changes you wish to make within <code class="docutils literal notranslate"><span class="pre">mozilla-central</span></code>.</p> <section id="changing-test-characteristics"> <h3>Changing Test Characteristics<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#changing-test-characteristics" title="Link to this heading"></a></h3> <p>First, find the test description. This will be in <code class="docutils literal notranslate"><span class="pre">taskcluster/kinds/*/tests.yml</span></code>, for the appropriate kind (consult <a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/taskgraph.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#kinds"><span class="std std-ref">Kinds</span></a>). You will find a YAML stanza for each test suite, and each stanza defines the test’s characteristics. For example, the <code class="docutils literal notranslate"><span class="pre">chunks</span></code> property gives the number of chunks to run. This can be specified as a simple integer if all platforms have the same chunk count, or it can be keyed by test platform. For example:</p> <div class="highlight-yaml notranslate"> <div class="highlight"> <pre><span></span><span class="nt">chunks</span><span class="p">:</span> <span class="w"> </span><span class="nt">by-test-platform</span><span class="p">:</span> <span class="w"> </span><span class="nt">linux64/debug</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">10</span> <span class="w"> </span><span class="nt">default</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">8</span> </pre> </div> </div> <p>The full set of available properties is in <code class="docutils literal notranslate"><span class="pre">taskcluster/gecko_taskgraph/transforms/test/__init__.py</span></code>. Some other commonly-modified properties are <code class="docutils literal notranslate"><span class="pre">max-run-time</span></code> (useful if tests are being killed for exceeding maxRunTime) and <code class="docutils literal notranslate"><span class="pre">treeherder-symbol</span></code>.</p> <div class="admonition note"> <p class="admonition-title">Note</p> <p>Android tests are also chunked at the mozharness level, so you will need to modify the relevant mozharness config, as well.</p> </div> </section> <section id="adding-a-test-suite"> <h3>Adding a Test Suite<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#adding-a-test-suite" title="Link to this heading"></a></h3> <p>To add a new test suite, you will need to know the proper mozharness invocation for that suite, and which kind it fits into (consult <a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/taskgraph.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#kinds"><span class="std std-ref">Kinds</span></a>).</p> <p>Add a new stanza to <code class="docutils literal notranslate"><span class="pre">taskcluster/kinds/<kind>/tests.yml</span></code>, copying from the other stanzas in that file. The meanings should be clear, but authoritative documentation is in <code class="docutils literal notranslate"><span class="pre">taskcluster/gecko_taskgraph/transforms/test/__init__.py</span></code> should you need it. The stanza name is the name by which the test will be referenced in try syntax.</p> <p>Add your new test to a test set in <code class="docutils literal notranslate"><span class="pre">test-sets.yml</span></code> in the same directory. If the test should only run on a limited set of platforms, you may need to define a new test set and reference that from the appropriate platforms in <code class="docutils literal notranslate"><span class="pre">test-platforms.yml</span></code>. If you do so, include some helpful comments in <code class="docutils literal notranslate"><span class="pre">test-sets.yml</span></code> for the next person.</p> </section> <section id="greening-up-a-new-test"> <h3>Greening Up a New Test<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#greening-up-a-new-test" title="Link to this heading"></a></h3> <p>When a test is not yet reliably green, configuration for that test should not be landed on integration branches. Of course, you can control where the configuration is landed! For many cases, it is easiest to green up a test in try: push the configuration to run the test to try along with your work to fix the remaining test failures.</p> <p>When working with a group, check out a “twig” repository to share among your group, and land the test configuration in that repository. Once the test is green, merge to an integration branch and the test will begin running there as well.</p> </section> <section id="adding-a-new-task"> <h3>Adding a New Task<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#adding-a-new-task" title="Link to this heading"></a></h3> <p>If you are adding a new task that is not a test suite, there are a number of options. A few questions to consider:</p> <blockquote> <div> <ul class="simple"> <li><p>Is this a new build platform or variant that will produce an artifact to be run through the usual test suites?</p></li> <li><p>Does this task depend on other tasks? Do other tasks depend on it?</p></li> <li><p>Is this one of a few related tasks, or will you need to generate a large set of tasks using some programmatic means (for example, chunking)?</p></li> <li><p>How is the task actually executed? Mozharness? Mach?</p></li> <li><p>What kind of environment does the task require?</p></li> </ul> </div> </blockquote> <p>Armed with that information, you can choose among a few options for implementing this new task. Try to choose the simplest solution that will satisfy your near-term needs. Since this is all implemented in-tree, it is not difficult to refactor later when you need more generality.</p> <section id="existing-kind"> <h4>Existing Kind<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#existing-kind" title="Link to this heading"></a></h4> <p>The simplest option is to add your task to an existing kind. This is most practical when the task “makes sense” as part of that kind – for example, if your task is building an installer for a new platform using mozharness scripts similar to the existing build tasks, it makes most sense to add your task to the <code class="docutils literal notranslate"><span class="pre">build</span></code> kind. If you need some additional functionality in the kind, it’s OK to modify the implementation as necessary, as long as the modification is complete and useful to the next developer to come along.</p> <p>Tasks in the <code class="docutils literal notranslate"><span class="pre">build</span></code> kind generate Firefox installers, and the <code class="docutils literal notranslate"><span class="pre">test</span></code> kind will add a full set of Firefox tests for each <code class="docutils literal notranslate"><span class="pre">build</span></code> task.</p> </section> <section id="new-kind"> <h4>New Kind<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#new-kind" title="Link to this heading"></a></h4> <p>The next option to consider is adding a new kind. A distinct kind gives you some isolation from other task types, which can be nice if you are adding an experimental kind of task.</p> <p>Kinds can range in complexity. The simplest sort of kind uses the transform loader to read a list of jobs from the <code class="docutils literal notranslate"><span class="pre">jobs</span></code> key, and applies the standard <code class="docutils literal notranslate"><span class="pre">job</span></code> and <code class="docutils literal notranslate"><span class="pre">task</span></code> transforms:</p> <div class="highlight-yaml notranslate"> <div class="highlight"> <pre><span></span><span class="nt">implementation</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">taskgraph.task.transform:TransformTask</span> <span class="nt">transforms</span><span class="p">:</span> <span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">taskgraph.transforms.job:transforms</span> <span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">taskgraph.transforms.task:transforms</span> <span class="nt">jobs</span><span class="p">:</span> <span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">..your job description here..</span> </pre> </div> </div> <p>Job descriptions are defined and documented in <code class="docutils literal notranslate"><span class="pre">taskcluster/gecko_taskgraph/transforms/job/__init__.py</span></code>.</p> </section> <section id="custom-kind-loader"> <h4>Custom Kind Loader<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#custom-kind-loader" title="Link to this heading"></a></h4> <p>If your task depends on other tasks, then the decision of which tasks to create may require some code. For example, the <code class="docutils literal notranslate"><span class="pre">test</span></code> kind iterates over the builds in the graph, generating a full set of test tasks for each one. This specific post-build behavior is implemented as a loader defined in <code class="docutils literal notranslate"><span class="pre">taskcluster/gecko_taskgraph/loader/test.py</span></code>.</p> <p>A custom loader is useful when the set of tasks you want to create is not static but based on something else (such as the available builds) or when the dependency relationships for your tasks are complex.</p> </section> <section id="custom-transforms"> <h4>Custom Transforms<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#custom-transforms" title="Link to this heading"></a></h4> <p>Most loaders apply a series of “<a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/transforms/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#transforms"><span class="std std-ref">Transforms</span></a>” that start with an initial human-friendly description of a task and end with a task definition suitable for insertion into a Taskcluster queue.</p> <p>Custom transforms can be useful to apply defaults, simplifying the YAML files in your kind. They can also apply business logic that is more easily expressed in code than in YAML.</p> <p>Transforms need not be one-to-one: a transform can produce zero or more outputs for each input. For example, the test transforms perform chunking by producing an output for each chunk of a given input.</p> <p>Ideally those transforms will produce job descriptions, so you can use the existing <code class="docutils literal notranslate"><span class="pre">job</span></code> and <code class="docutils literal notranslate"><span class="pre">task</span></code> transforms:</p> <div class="highlight-yaml notranslate"> <div class="highlight"> <pre><span></span><span class="nt">transforms</span><span class="p">:</span> <span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">taskgraph.transforms.my_stuff:transforms</span> <span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">taskgraph.transforms.job:transforms</span> <span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">taskgraph.transforms.task:transforms</span> </pre> </div> </div> <p>Try to keep transforms simple, single-purpose and well-documented!</p> </section> <section id="custom-run-using"> <h4>Custom Run-Using<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/howto/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB#custom-run-using" title="Link to this heading"></a></h4> <p>If the way your task is executed is unique (so, not a mach command or mozharness invocation), you can add a new implementation of the job description’s “run” section. Before you do this, consider that it might be a better investment to modify your task to support invocation via mozharness or mach, instead. If this is not possible, then adding a new file in <code class="docutils literal notranslate"><span class="pre">taskcluster/gecko_taskgraph/transforms/jobs</span></code> with a structure similar to its peers will make the new run-using option available for job descriptions.</p> </section> </section> </section> </section> </div> </div> <footer> <div class="rst-footer-buttons" role="navigation" aria-label="Footer"><a href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/taskgraph.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB" class="btn btn-neutral float-left" title="Taskgraph Overview" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a> <a href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/transforms/index.html?_x_tr_sl=pl&_x_tr_tl=iw&_x_tr_hl=en-GB" class="btn btn-neutral float-right" title="Transforms" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a> </div> <hr> <div role="contentinfo"> <p></p> </div> Built with <a href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://www.sphinx-doc.org/">Sphinx</a> using a <a href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://github.com/readthedocs/sphinx_rtd_theme">theme</a> provided by <a href="https://translate.google.com/website?sl=pl&tl=iw&hl=en-GB&u=https://readthedocs.org">Read the Docs</a>. </footer> </div> </div> </section> </div> <script> jQuery(function () { SphinxRtdTheme.Navigation.enable(true); }); </script> <script>function gtElInit() {var lib = new google.translate.TranslateService();lib.translatePage('pl', 'iw', function () {});}</script> <script src="https://translate.google.com/translate_a/element.js?cb=gtElInit&hl=en-GB&client=wt" type="text/javascript"></script> </body> </html>