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| <main> |
| <h1 id="getting-started"><a class="header" href="#getting-started">Getting Started</a></h1> |
| <p>Thank you for your interest in contributing to Rust! |
| There are many ways to contribute, and we appreciate all of them.</p> |
| <p>If this is your first time contributing, the <a href="./walkthrough.html">walkthrough</a> chapter can give you a good example of |
| how a typical contribution would go.</p> |
| <p>This documentation is <em>not</em> intended to be comprehensive; |
| it is meant to be a quick guide for the most useful things. |
| For more information, |
| see <a href="building/how-to-build-and-run.html">How to build and run the compiler</a>.</p> |
| <h2 id="asking-questions"><a class="header" href="#asking-questions">Asking Questions</a></h2> |
| <p>If you have questions, please make a post on the <a href="https://rust-lang.zulipchat.com">Rust Zulip server</a> or |
| <a href="https://internals.rust-lang.org">internals.rust-lang.org</a>. |
| See the <a href="https://www.rust-lang.org/governance">list of teams and working groups</a> and <a href="https://www.rust-lang.org/community">the Community page</a> on the |
| official website for more resources.</p> |
| <p>As a reminder, all contributors are expected to follow our <a href="https://www.rust-lang.org/policies/code-of-conduct">Code of Conduct</a>.</p> |
| <p>The compiler team (or <code>t-compiler</code>) usually hangs out in Zulip in |
| <a href="https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler">the #t-compiler channel</a>; |
| questions about how the compiler works can go in <a href="https://rust-lang.zulipchat.com/#narrow/channel/182449-t-compiler.2Fhelp">#t-compiler/help</a>.</p> |
| <p><strong>Please ask questions!</strong> A lot of people report feeling that they are “wasting |
| expert’s time”, but nobody on <code>t-compiler</code> feels this way. |
| Contributors are important to us.</p> |
| <p>Also, if you feel comfortable, prefer public topics, as this means others can |
| see the questions and answers, and perhaps even integrate them back into this guide :)</p> |
| <p><strong>Tip</strong>: If you’re not a native English speaker and feel unsure about writing, try using a translator to help. |
| But avoid using LLM tools that generate long, complex words. |
| In daily teamwork, <strong>simple and clear words</strong> are best for easy understanding. |
| Even small typos or grammar mistakes can make you seem more human, and people connect better with humans.</p> |
| <h3 id="experts"><a class="header" href="#experts">Experts</a></h3> |
| <p>Not all <code>t-compiler</code> members are experts on all parts of <code>rustc</code>; |
| it’s a pretty large project. |
| To find out who could have some expertise on |
| different parts of the compiler, <a href="https://github.com/rust-lang/rust/blob/HEAD/triagebot.toml">consult triagebot assign groups</a>. |
| The sections that start with <code>[assign*</code> in <code>triagebot.toml</code> file. |
| But also, feel free to ask questions even if you can’t figure out who to ping.</p> |
| <p>Another way to find experts for a given part of the compiler is to see who has made recent commits. |
| For example, to find people who have recently worked on name resolution since the 1.68.2 release, |
| you could run <code>git shortlog -n 1.68.2.. compiler/rustc_resolve/</code>. |
| Ignore any commits starting with |
| “Rollup merge” or commits by <code>@bors</code> (see <a href="./contributing.html#ci">CI contribution procedures</a> for |
| more information about these commits).</p> |
| <h3 id="etiquette"><a class="header" href="#etiquette">Etiquette</a></h3> |
| <p>We do ask that you be mindful to include as much useful information as you can |
| in your question, but we recognize this can be hard if you are unfamiliar with contributing to Rust.</p> |
| <p>Just pinging someone without providing any context can be a bit annoying and |
| just create noise, so we ask that you be mindful of the fact that the |
| <code>t-compiler</code> folks get a lot of pings in a day.</p> |
| <h2 id="what-should-i-work-on"><a class="header" href="#what-should-i-work-on">What should I work on?</a></h2> |
| <p>The Rust project is quite large and it can be difficult to know which parts of the project need |
| help, or are a good starting place for beginners. |
| Here are some suggested starting places.</p> |
| <h3 id="easy-or-mentored-issues"><a class="header" href="#easy-or-mentored-issues">Easy or mentored issues</a></h3> |
| <p>If you’re looking for somewhere to start, check out the following <a href="https://github.com/rust-lang/rust/issues?q=is%3Aopen%20is%3Aissue%20org%3Arust-lang%20no%3Aassignee%20label%3AE-easy%2CE-medium%2CE-help-wanted%2CE-mentor%20-label%3AS-blocked%20-linked%3Apr">issue |
| search</a>. |
| See the <a href="./contributing.html#issue-triage">Triage</a> for an explanation of these labels. |
| You can also try filtering the search to areas you’re interested in. |
| For example:</p> |
| <ul> |
| <li><code>repo:rust-lang/rust-clippy</code> will only show clippy issues</li> |
| <li><code>label:T-compiler</code> will only show issues related to the compiler</li> |
| <li><code>label:A-diagnostics</code> will only show diagnostic issues</li> |
| </ul> |
| <p>Not all important or beginner work has issue labels. |
| See below for how to find work that isn’t labelled.</p> |
| <h3 id="recurring-work"><a class="header" href="#recurring-work">Recurring work</a></h3> |
| <p>Some work is too large to be done by a single person. |
| In this case, it’s common to have “Tracking issues” to co-ordinate the work between contributors. |
| Here are some example tracking issues where |
| it’s easy to pick up work without a large time commitment:</p> |
| <ul> |
| <li><em>Add recurring work items here.</em></li> |
| </ul> |
| <p>If you find more recurring work, please feel free to add it here!</p> |
| <h3 id="clippy-issues"><a class="header" href="#clippy-issues">Clippy issues</a></h3> |
| <p>The <a href="https://doc.rust-lang.org/clippy/">Clippy</a> project has spent a long time making its contribution process as friendly to newcomers |
| as possible. |
| Consider working on it first to get familiar with the process and the compiler internals.</p> |
| <p>See <a href="https://github.com/rust-lang/rust-clippy/blob/master/CONTRIBUTING.md">the Clippy contribution guide</a> for instructions on getting started.</p> |
| <h3 id="diagnostic-issues"><a class="header" href="#diagnostic-issues">Diagnostic issues</a></h3> |
| <p>Many diagnostic issues are self-contained and don’t need detailed background knowledge of the |
| compiler. |
| You can see a list of diagnostic issues <a href="https://github.com/rust-lang/rust/issues?q=is%3Aissue+is%3Aopen+label%3AA-diagnostics+no%3Aassignee">here</a>.</p> |
| <h3 id="picking-up-abandoned-pull-requests"><a class="header" href="#picking-up-abandoned-pull-requests">Picking up abandoned pull requests</a></h3> |
| <p>Sometimes, contributors send a pull request, but later find out that they don’t have enough |
| time to work on it, or they simply are not interested in it anymore. |
| Such PRs are often eventually closed and they receive the <code>S-inactive</code> label. |
| You could try to examine some of these PRs and pick up the work. |
| You can find the list of such PRs <a href="https://github.com/rust-lang/rust/pulls?q=is%3Apr+label%3AS-inactive+is%3Aclosed">here</a>.</p> |
| <p>If the PR has been implemented in some other way in the meantime, the <code>S-inactive</code> label |
| should be removed from it. |
| If not, and it seems that there is still interest in the change, |
| you can try to rebase the pull request on top of the latest <code>main</code> branch and send a new |
| pull request, continuing the work on the feature.</p> |
| <h3 id="writing-tests"><a class="header" href="#writing-tests">Writing tests</a></h3> |
| <p>Issues that have been resolved but do not have a regression test are marked with the <code>E-needs-test</code> label. |
| Writing unit tests is a low-risk, |
| lower-priority task that offers new contributors a great opportunity to familiarize themselves |
| with the testing infrastructure and contribution workflow. |
| You can see a list of needs test issues <a href="https://github.com/rust-lang/rust/issues?q=is%3Aissue%20is%3Aopen%20label%3AE-needs-test%20no%3Aassignee">here</a>.</p> |
| <h3 id="contributing-to-std-standard-library"><a class="header" href="#contributing-to-std-standard-library">Contributing to std (standard library)</a></h3> |
| <p>See <a href="https://std-dev-guide.rust-lang.org/">std-dev-guide</a>.</p> |
| <h3 id="contributing-code-to-other-rust-projects"><a class="header" href="#contributing-code-to-other-rust-projects">Contributing code to other Rust projects</a></h3> |
| <p>There are a bunch of other projects that you can contribute to outside of the |
| <code>rust-lang/rust</code> repo, including <code>cargo</code>, <code>miri</code>, <code>rustup</code>, and many others.</p> |
| <p>These repos might have their own contributing guidelines and procedures. |
| Many of them are owned by working groups. |
| For more info, see the documentation in those repos’ READMEs.</p> |
| <h3 id="other-ways-to-contribute"><a class="header" href="#other-ways-to-contribute">Other ways to contribute</a></h3> |
| <p>There are a bunch of other ways you can contribute, especially if you don’t |
| feel comfortable jumping straight into the large <code>rust-lang/rust</code> codebase.</p> |
| <p>The following tasks are doable without much background knowledge but are incredibly helpful:</p> |
| <ul> |
| <li><a href="./contributing.html#writing-documentation">Writing documentation</a>: if you are feeling a bit more intrepid, you could try |
| to read a part of the code and write doc comments for it. |
| This will help you to learn some part of the compiler while also producing a useful artifact!</li> |
| <li><a href="./contributing.html#issue-triage">Triaging issues</a>: categorizing, replicating, and minimizing issues is very helpful to the Rust maintainers.</li> |
| <li><a href="https://forge.rust-lang.org/compiler/working-areas.html">Working areas</a>: there are a bunch of working areas on a wide variety |
| of rust-related things.</li> |
| <li>Answer questions on <a href="https://users.rust-lang.org/">users.rust-lang.org</a>, or on <a href="http://stackoverflow.com/questions/tagged/rust">Stack Overflow</a>.</li> |
| <li>Participate in the <a href="https://github.com/rust-lang/rfcs">RFC process</a>.</li> |
| <li>Find a <a href="https://github.com/rust-lang/rfcs/labels/A-community-library">requested community library</a>, build it, and publish |
| it to <a href="http://crates.io">Crates.io</a>. |
| Easier said than done, but very, very valuable!</li> |
| </ul> |
| <h2 id="cloning-and-building"><a class="header" href="#cloning-and-building">Cloning and Building</a></h2> |
| <p>See <a href="./building/how-to-build-and-run.html">“How to build and run the compiler”</a>.</p> |
| <h2 id="contributor-procedures"><a class="header" href="#contributor-procedures">Contributor Procedures</a></h2> |
| <p>This section has moved to the <a href="./contributing.html">“Contribution Procedures”</a> chapter.</p> |
| <h2 id="other-resources"><a class="header" href="#other-resources">Other Resources</a></h2> |
| <p>This section has moved to the <a href="./about-this-guide.html#other-places-to-find-information">“About this guide”</a> chapter.</p> |
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