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About Packit
2021-01-11
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About Packit

The key principles of packit

  • Packit aims to make things easy and right. But if the default behavior is not the right for you, there is still a way around, but may not be that simple. For example you can use actions to replace packit's default behavior with a script of yours.

  • Reuse existing tools and services where it makes sense: don't reinvent the wheel.

  • You can consume packit in two forms:

    • Packit tool can run on your laptop, and you run commands you want.
    • Packit service reacts to events and performs actions which you defined in your packit.yaml.

  • We don't break backward compatibility just like that.

  • Packit has a deprecation policy:

    • We can mark a behaviour as deprecated.
    • Deprecated content can be removed or changed after at least 3 minor releases.
    • Deprecated content is advertised in our changelog, printed in the terminal or tracked in your issue tracker.

  • We care about artifacts which Fedora supports: at the moment it's RPMs, modules and container images.

    • Our initial focus is solely on RPMs.

  • Packit respects Fedora guidelines.

  • We want the latest content in Fedora Rawhide, but only if it works (the new content can be built and tests are passing).

  • Any task done by the automation system must be able to be performed by a human when that is required. Packit service must be capable of recovering from such situation.

  • Packit developers must be able to iterate on all parts packit (testing a change, merging a change, deploying to production) at a pace of at least every two weeks. To accomplish this, the release and validation processes are completely automated.

  • All tests are passing in CI systems for the main branches for all our projects. No excuses.

  • Contributions to packit must be possible by any developer, maintainer, tester, or other engineer. Any Fedora developer or tester should be able to reproduce a bot locally on their machine, given appropriate credentials.

Why packit?

  • Our intent is to bring downstream and upstream communities closer: provide feedback from downstream to upstream. (e.g. "Hello ‹upstream project Y›, your newest release doesn't work in Fedora Rawhide, it breaks ‹Z›, here is a link to logs.")

  • We want to only merge, build and compose components which integrate well with the rest of the operating system. The biggest impact of such behavior will be on Fedora Rawhide and when working on a new Fedora release.

  • Automatically pull and validate new upstream releases. This can be a trivial thing to do, why should maintainers waste their times on work which can be automated.

  • Developing in dist-git is cumbersome. Editing patch files and moving tarballs around is not fun. Why not work with the source code itself? With source-git, you'll have upstream git history and the dist-git content combined in a single repository.

  • Let's use modern development techniques such as pull requests, code review, modern git forges, automation and continuous integration. We have computers to do all the mundane tasks. Why should we, as humans, do such work?

  • We want dist-git to be "a database of content in a release" rather a place to do actual work. On the other hand, you'll still be able to interact with dist-git the same way. We are not taking that away. Source-git is meant to be the modern, better alternative.

DevConf.cz "Auto-maintain your package" talk.