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# Contributing
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2020-10-28 04:35:35 +00:00
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2020-10-29 18:46:36 +00:00
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Thank you for considering to contribute to `bat`!
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2020-10-28 04:35:35 +00:00
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2020-10-29 18:46:36 +00:00
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## Add an entry to the changelog
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If your contribution changes the behavior of `bat` (as opposed to a typo-fix
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in the documentation), please update the [`CHANGELOG.md`](CHANGELOG.md) file
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2020-12-01 18:38:14 +00:00
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and describe your changes. This makes the release process much easier and
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therefore helps to get your changes into a new `bat` release faster.
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The top of the `CHANGELOG` contains a *"unreleased"* section with a few
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subsections (Features, Bugfixes, …). Please add your entry to the subsection
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that best describes your change.
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Entries follow this format:
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```
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- Short description of what has been changed, see #123 (@user)
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```
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Here, `#123` is the number of the original issue and/or your pull request.
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Please replace `@user` by your GitHub username.
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2020-10-29 18:51:16 +00:00
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## Development
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Please check out the [Development](https://github.com/sharkdp/bat#development)
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section in the README.
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2020-10-29 18:52:55 +00:00
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## Adding a new feature
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Please consider opening a
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[feature request ticket](https://github.com/sharkdp/bat/issues/new?assignees=&labels=feature-request&template=feature_request.md)
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first in order to give us a chance to discuss the details and specifics of the potential new feature before you go and build it.
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2020-10-29 18:51:16 +00:00
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## Adding new syntaxes/languages or themes
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Before you make a pull request that adds a new syntax or theme, please read
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the [Customization](https://github.com/sharkdp/bat#customization) section
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in the README first.
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If you really think that a particular syntax or theme should be added for all
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users, please read the corresponding
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[documentation](https://github.com/sharkdp/bat/blob/master/doc/assets.md)
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first.
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## Regression tests
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You are **strongly encouraged** to add regression tests. Regression tests are great,
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not least because they:
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2022-10-09 22:44:45 +00:00
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* ensure that your contribution will never completely stop working.
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2022-10-09 22:44:45 +00:00
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* makes code reviews easier, because it becomes very clear what the code is
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supposed to do.
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For functional changes, you most likely want to add a test to
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[`tests/integration_tests.rs`](https://github.com/sharkdp/bat/blob/master/tests/integration_tests.rs).
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Look at existing tests to know how to write a new test. In short, you will
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invoke the `bat` binary with a certain set of arguments, and then assert on
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stdout/stderr.
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To learn how to write regression tests for theme and syntax changes, read the
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[Syntax
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tests](https://github.com/sharkdp/bat/blob/master/doc/assets.md#syntax-tests)
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section in `assets.md`.
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