Github Action use matrices with reuse-able workflow

Question

I've been rooting through the Github Action documentation around re-useable workflows and am attempting to piece together a chain of matrices.

My pseudo workflow looks something like the following steps.

• Job 1: Figure out files changed under a path & output them as json
• Job 2: Iterate the file list as a matrix and invoke another workflow.
• Job 3 (in other workflow): Simply use another matrix definition in conjunction with the single input value to perform a set of steps.

It would seem a relatively simple objective. Yet it looks like workflow re-useable calls do not support strategy. Correct me if I'm wrong?

Answer 1

GitHub Actions matrix supports now reusable workflows (since 22.08.22):

jobs:
  ReuseableMatrixJobForDeployment:
    strategy:
      matrix:
        target: [dev, stage, prod]
    uses: octocat/octo-repo/.github/workflows/deployment.yml@main
    with:
      target: ${{ matrix.target }}

References:

• GitHub Actions: Improvements to reusable workflows
• Using a matrix strategy with a reusable workflow