Dynamically-defined matrix workflows

[Kleidukos]

Clear and concise description of the problem

As a user of Woodpecker I want to be able to have one place in my repository where my list of supported compiler versions is written down, and have a woodpecker workflow to generate a matrix of jobs based on it.

I developed the get-tested tool for the Haskell ecosystem because we have a way to declare the tested versions of the compiler as metadata of the package file.

See

https://flora.pm/packages/@haskell/text 

This enables us to keep this list of tested compiler versions in one place, thus avoiding de-synchronisation problems between what we declare as tested and what is actually tested.

Suggested solution

Much like how GitHub does it, a well-defined JSON object format could be generated by one job on which another depends and reads from. This JSON object would mimick the YAML format:

matrix={"include":[{"ghc":"9.10.1","os":"ubuntu-latest"}]}

With ideally the addition of an exclude property that would prevent a combination of values from being run.

Main inspiration is https://docs.github.com/en/actions/using-jobs/using-a-matrix-for-your-jobs

Alternative

Maintaining multiple lists of supported compiler versions (one for package metadata, one for CI), which is prone to error and de-synchronisation.

Additional context

The link of the first checkbox (https://woodpecker-ci.org/faq#which-version-of-woodpecker-should-i-use) returns a 404.

Validations

• [X] Checked that the feature isn't part of the next version already [https://woodpecker-ci.org/faq#which-version-of-woodpecker-should-i-use]
• [X] Read the docs.
• [X] Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[MangoIV]

would love to see this, as well!

[qwerty287]

Duplicate #3646

(@Kleidukos you opened this one too 😉)

[MangoIV]

Wait but that’s a discussion?

[qwerty287]

It's in the "Request a feature" category

[Kleidukos]

@qwerty287 haha sorry, looks like senility comes for us at all ages. :)