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feat: Add support for dynamic matrix evaluation in Gitea Actions workflows (#36564)

Browse Source 
Adds dynamic matrix evaluation to Gitea Actions: a job's
`strategy.matrix` can be built from the outputs of the jobs it needs.

```yaml
jobs:
  generate:
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.set.outputs.result }}
    steps:
      - id: set
        run: echo "result=[1,2,3]" >> $GITHUB_OUTPUT

  build:
    needs: [generate]
    runs-on: ubuntu-latest
    strategy:
      matrix:
        version: ${{ fromJson(needs.generate.outputs.matrix) }}
    steps:
      - run: echo "building ${{ matrix.version }}"
```

Such a matrix cannot be expanded at planning time, so the job is planned
as a single placeholder and expanded by the job emitter once its needs
finish. Each combination is then gated by `if:` and concurrency as
usual.

- A matrix that resolves to no combination fails the job, as on GitHub.
- Expansion is capped at `MaxJobNumPerRun`.
- Workflows without a needs-dependent matrix are unaffected.

Fixes https://github.com/go-gitea/gitea/issues/25179

---------

Signed-off-by: Pascal Zimmermann <pascal.zimmermann@theiotstudio.com>
Signed-off-by: ZPascal <pascal.zimmermann@theiotstudio.com>
Co-authored-by: Claude <claude-sonnet-4-5@anthropic.com>
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Claude (Opus 4.8) <noreply@anthropic.com>
Co-authored-by: bircni <bircni@icloud.com>
Co-authored-by: Zettat123 <zettat123@gmail.com>
This commit is contained in:
Pascal Zimmermann
2026-07-28 15:59:00 +00:00
committed by GitHub
co-authored by Claude silverwind Claude bircni Zettat123
parent 717db275d5
commit 5672b1c4cf
20 changed files with 1252 additions and 69 deletions
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routers/web/repo/actions/actions.go
+3 -1
View File
@@ -554,7 +554,9 @@ func (data *actionRunListData) processActionRuns(ctx *context.Context) bool {
return false
}
for _, job := range jobs {
if !job.Status.In(actions_model.StatusWaiting, actions_model.StatusBlocked) {
// A deferred matrix is unresolvable until its needs finish, so the whole per-job block
// is skipped: parsing the payload would report a valid workflow as invalid.
if job.IsMatrixDeferred || !job.Status.In(actions_model.StatusWaiting, actions_model.StatusBlocked) {
continue
}
if err := actions.ValidateWorkflowContent(job.WorkflowPayload); err != nil {