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commit 47f8f1bac6f0b41fe1ad9c4267687db7a42068de
parent aef38d6c2fb384cf29a948a19c67733960983d3b
Author: Vineeth Sagar <>
Date:   Sun,  9 Dec 2018 07:16:09 +0530

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diff --git a/ b/ @@ -0,0 +1,98 @@ +# Contributing to Alacritty + +Thank you for your interest in contributing to Alacritty! + +Table of Contents: + +1. [Feature Requests](#feature-requests) +2. [Bug Reports](#bug-reports) +3. [Pull Requests](#pull-requests) + 1. [Testing](#testing) + 2. [Performance](#performance) + 3. [Documentation](#documentation) + 4. [Style](#style) +4. [Contact](#contact) + +## Feature Requests + +Feature requests should be reported in the [Alacritty issue tracker]( To reduce the number of duplicates, please make sure to check the existing [enhancement]( and [missing feature]( issues. + +## Bug Reports + +Bug reports should be reported in the [Alacritty issue tracker]( + +If a bug was not present in a previous version of Alacritty, providing the exact commit which introduced the regression helps out a lot. + +Since a multitude of operating systems are supported by Alacritty, not all issues might apply to every OS. So make sure to specify on which OS the bug has been found. Since Linux has a variety of window managers, compositors and display servers, please also specify those when encountering an issue on Linux. + +Depending on the bug, it might also be useful to provide some of the following information: + - Configuration file + - `alacritty -v(vv)` output + - `alacritty --print-events` output + - `glxinfo` output + - `xrandr` output + +Here's a template that you can use to file a bug, though it's not necessary to use it exactly: + +``` +# System +| | | +|------------------|-------------------------------| +| Operating System | [Linux/BSD/macOS/Windows] | +| Rust Version | [stable/beta/nightly/X.Y.Z] | +| Display Server | [X11/Wayland] (only on Linux) | +| Window Manager | [i3/xfwm/...] (only on Linux) | +| Compositor | [compton/...] (only on Linux) | + +# Summary +[Short summary of the Bug] + +# Behavior +[Description of Alacritty's current behavior] + +# Expectation +[Description of expected behavior] + +# Extra +[Additional information like config or logs] +``` + +## Patches / Pull Requests + +All patches have to be sent on Github as [pull requests]( + +If you are looking for a place to start contributing to Alacritty, take a look at the [help wanted]( and [easy]( issues. + +### Testing + +To make sure no regressions were introduced, all tests should be run before sending a pull request. The following command can be run to test Alacritty: + +``` +cargo test +``` + +Additionally if there's any functionality included which would lend itself to additional testing, new tests should be added. These can either be in the form of Rust tests using the `#[test]` annotation, or Alacritty's ref tests. + +To record a new ref test, a release version of the patched binary should be created and run with the `--ref-test` flag. After closing the Alacritty window, or killing it (`exit` and `^D` do not work), some new files should have been generated in the working directory. Those can then be copied to the `./tests/ref/NEW_TEST_NAME` directory and the test can be enabled by editing the `ref_tests!` macro in the `./tests/` file. When fixing a bug, it should be checked that the ref test does not complete correctly with the unpatched version, to make sure the test case is covered properly. + +### Performance + +Alacritty mainly uses the [vtebench]( tool for testing Alacritty's performance. Any change which could have an impact on Alacritty's performance, should be tested with it to prevent potential regressions. + +### Documentation + +Code should be documented where appropriate. The existing code can be used as a guidance here and the general `rustfmt` rules can be followed for formatting. + +If any change has been made to the `` file, these changes should be documented in the example configuration files `alacritty.yml`, `alacritty_macos.yml` and `alacritty_windows.yml`. Only changes which are exclusive to a specific platform do not need to be added to all configuration files. + +Changes compared to the latest Alacritty release which have a direct effect on the user (opposed to things like code refactorings or documentation/tests) additionally need to be documented in the ``. The existing entries should be used as a style guideline. The change log should be used to document changes from a user-perspective, instead of explaining the technical background (like commit messages). More information about Alacritty's change log format can be found [here]( + +### Style + +Alacritty currently does not have any automatically enforced style guidelines. As a result of that, it is not possible to run `rustfmt` on existing files. New code should however follow the default ruleset of `rustfmt` and for newly created files it is possible to run the `rustfmt` tool directly. + +# Contact + +If there are any outstanding questions about contributing to Alacritty, they can be asked on the [Alacritty issue tracker]( + +As a more immediate and direct form of communication, the Alacritty IRC channel (`#alacritty` on Freenode) can be used to contact many of the Alacritty contributors.