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ale/CONTRIBUTING.md

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Contributing to ALE

  1. Guidelines
  2. Creating Issues
  3. Creating Pull Requests
  4. Adding a New Linter
  5. Adding New Options

1. Guidelines

Have fun, and work on whatever floats your boat. Take It Easy ™️.

When writing code, follow the Google Vimscript Style Guide, and run vint -s on your files to check for most of what the guide mentions and more. If you install this plugin (ALE) and install Vint, it will check your code while you type.

2. Creating Issues

Before creating any issues, please look through the current list of issues and pull requests, and ensure that the issue hasn't already been reported. If an issue has already been reported, but you have some new insight, please add a comment to the existing issue.

Please read the FAQ in the README before creating any issues. A feature you desire may already exist and be documented, or the FAQ might explain how to solve a problem you have already.

Please try and describe any issues reported with as much detail as you can provide about your Vim version, the linter you were trying to run, your operating system, or any other information you think might be helpful.

Please describe your issue in clear, grammatically correct, and easy to understand English. You are more likely to see an issue resolved if others can understand you.

3. Creating Pull Requests

For code you write, make sure to credit yourself at the top of files you add, and probably those you modify. You can write some comments at the top of your VIM files.

" Author: John Smith <john.smith@gmail.com>
" Description: This file adds support for awesomelinter for the best language ever.

If you want to credit multiple authors, you can comma separate them.

" Author: John Smith <john.smith@gmail.com>, Jane Doe <https://jane-doe.info>

3.i. Adding a New Linter

If you add a new linter, look for existing handlers first in the handlers.vim file. One of the handlers there may already be able to handle your lines of output. If you find that your new linter replicates an existing error handler, consider pulling it up into the handlers.vim file, and use the generic handler in both places.

When you add a linter, make sure the language for the linter and the linter itself are present in the table in the README.md file and in the Vim help file. The programs and linters should be sorted alphabetically in the table and list.

3.ii. Adding New Options

If you add new options to the plugin, make sure to document those new options in the README.md file, and also in the help file. Follow the format of other options in each. Global options should appear in the README file, and in the relevant section in the help file. Options specific to a particular linter should appear in the section for that linter.

Linter options for customizing general argument lists should be named g:ale_<filetype>_<linter>_options, so that all linters can have similar global variable names.

Any options for linters should be set to some default value so it is always easy to see what the default is with :echo g:ale....