79 lines
4.3 KiB
Markdown
79 lines
4.3 KiB
Markdown
# How to contribute
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## Opening issues
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* Make sure you have a [GitHub account](https://github.com/signup/free)
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* [Submit an issue](https://github.com/NixOS/nixpkgs/issues) - assuming one does not already exist.
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* Clearly describe the issue including steps to reproduce when it is a bug.
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* Include information what version of nixpkgs and Nix are you using (nixos-version or git revision).
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## Making patches
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* Read [Manual (How to write packages for Nix)](https://nixos.org/nixpkgs/manual/).
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* Fork the repository on GitHub.
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* Create a branch for your future fix.
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* You can make branch from a commit of your local `nixos-version`. That will help you to avoid additional local compilations. Because you will recieve packages from binary cache.
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* For example: `nixos-version` returns `15.05.git.0998212 (Dingo)`. So you can do:
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```bash
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git checkout 0998212
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git checkout -b 'fix/pkg-name-update'
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```
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* Please avoid working directly on the `master` branch.
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* Make commits of logical units.
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* If you removed pkgs, made some major NixOS changes etc., write about them in `nixos/doc/manual/release-notes/rl-unstable.xml`.
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* Check for unnecessary whitespace with `git diff --check` before committing.
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* Format the commit in a following way:
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```
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(pkg-name | service-name): (from -> to | init at version | refactor | etc)
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Additional information.
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```
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* Examples:
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* `nginx: init at 2.0.1`
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* `firefox: 3.0 -> 3.1.1`
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* `hydra service: add bazBaz option`
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* `nginx service: refactor config generation`
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* Test your changes. If you work with
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* nixpkgs:
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* update pkg ->
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* `nix-env -i pkg-name -f <path to your local nixpkgs folder>`
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* add pkg ->
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* Make sure it's in `pkgs/top-level/all-packages.nix`
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* `nix-env -i pkg-name -f <path to your local nixpkgs folder>`
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* _If you don't want to install pkg in you profile_.
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* `nix-build -A pkg-attribute-name <path to your local nixpkgs folder>/default.nix` and check results in the folder `result`. It will appear in the same directory where you did `nix-build`.
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* If you did `nix-env -i pkg-name` you can do `nix-env -e pkg-name` to uninstall it from your system.
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* NixOS and its modules:
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* You can add new module to your NixOS configuration file (usually it's `/etc/nixos/configuration.nix`).
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And do `sudo nixos-rebuild test -I nixpkgs=<path to your local nixpkgs folder> --fast`.
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* If you have commits `pkg-name: oh, forgot to insert whitespace`: squash commits in this case. Use `git rebase -i`.
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* Rebase you branch against current `master`.
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## Submitting changes
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* Push your changes to your fork of nixpkgs.
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* Create pull request:
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* Write the title in format `(pkg-name | service): improvement`.
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* If you update the pkg, write versions `from -> to`.
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* Write in comment if you have tested your patch. Do not rely much on `TravisCI`.
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* If you make an improvement, write about your motivation.
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* Notify maintainers of the package. For example add to the message: `cc @jagajaga @domenkozar`.
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## Hotfixing pull requests
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* Make the appropriate changes in you branch.
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* Don't create additional commits, do
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* `git rebase -i`
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* `git push --force` to your branch.
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## Commit policy
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* Commits must be sufficiently tested before being merged, both for the master and staging branches.
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* Hydra builds for master and staging should not be used as testing platform, it's a build farm for changes that have been already tested.
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* Master should only see non-breaking commits that do not cause mass rebuilds.
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* Staging should only see non-breaking mass-rebuild commits. That means it's not to be used for testing, and changes must have been well tested already. [Read policy here](http://comments.gmane.org/gmane.linux.distributions.nixos/13447).
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* If staging is already in a broken state, please refrain from adding extra new breakages. Stabilize it for a few days, merge into master, then resume development on staging. [Keep an eye on the staging evaluations here](http://hydra.nixos.org/jobset/nixpkgs/staging#tabs-evaluations).
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* When changing the bootloader installation process, extra care must be taken. Grub installations cannot be rolled back, hence changes may break people's installations forever. For any non-trivial change to the bootloader please file a PR asking for review, especially from @edolstra.
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