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nixpkgs/CONTRIBUTING.md
2015-06-17 13:58:36 -07:00

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How to contribute

Opening issues

  • Make sure you have a GitHub account
  • Submit a ticket for your issue, assuming one does not already exist.
    • Clearly describe the issue including steps to reproduce when it is a bug.

Making patches

  • Read Manual (How to write packages for Nix)

  • Fork the repository on GitHub.

  • Create a branch for your future fix.

    • 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 some packages from cache server.
      • For example: nixos-version returns 15.05.git.0998212 (Dingo). So you can do:

        git checkout 0998212
        git checkout -b 'fix/pkg-name-update'
        
    • Please avoid working directly on the master branch.
  • Make commits of logical units.

    • If you removed pkgs, made some major changes etc., write about them in nixos/doc/manual/release-notes/rl-unstable.xml.
  • Check for unnecessary whitespace with git diff --check before committing.

  • Format the commit in a following way:

      ```
      (pkg-name | service-name): (update from -> to | init at version | refactor | etc)
    
      Additional information.
      ```
    
    • Examples:
      • foo-pkg: init at 2.0.1
      • bar-pkg: update 3.0 -> 3.1.1
      • lala-service: add bazBaz option
      • tata-service: refactor config generation
  • Test your changes. If you work with

    • nixpkgs
      • update pkg ->
        • nix-env -i pkg-name -f <path to your local nixpkgs folder>
      • add pkg ->
        • Make sure it's in pkgs/top-level/all-packages.nix
        • nix-env -i pkg-name -f <path to your local nixpkgs folder>
      • If you don't want to install pkg in you profile.
        • 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.
      • If you did nix-env -i pkg-name you can do nix-env -e pkg-name to uninstall it from your system.
    • nixos and its modules
      • You can add new module to you nixos-configuration file (usually it's /etc/nixos/configuration.nix.
        And do sudo nixos-rebuild test -I nixpkgs=<path to your local nixpkgs folder> --fast
  • If you have commits pkg-name: oh, forgot to insert whitespace: squash commits in this case. Use git rebase -i.

  • Rebase you branch against current master.

Submitting changes

  • Push your changes to your fork of nixpkgs.
  • Create pull request.
    • Write the title in format (pkg-name | service): improvement
      • If you update the pkg, write versions from -> to
    • Write in comment if you have tested your patch. Do not rely much on TravisCI.
    • If you make an improvement, write why is it good.
    • Notify maintainers of the package. For example add to the message: cc @jagajaga @domenkozar

Hotfixing pull requests

  • Make the appropriate changes in you branch.
  • Don't create additional commits.
    • git rebase
    • git push --force to your branch.