ci-metadata.yml

name: 'Get Metadata'
on:
  workflow_call:
    inputs:
      head_commit:
        description: 'The commit SHA to check out and test'
        type: string
        required: true
    outputs:
      commit_label:
        description: 'Short SHA + commit message for display'
        value: ${{ jobs.get_metadata.outputs.commit_label }}
      is_base_branch:
        description: 'Whether the ref is develop, v9, or v8'
        value: ${{ jobs.get_metadata.outputs.is_base_branch }}
      is_release:
        description: 'Whether the ref is a release branch'
        value: ${{ jobs.get_metadata.outputs.is_release }}
      changed_ci:
        description: 'Whether .github/** files changed'
        value: ${{ jobs.get_metadata.outputs.changed_ci }}
      changed_any_code:
        description: 'Whether any non-markdown files changed'
        value: ${{ jobs.get_metadata.outputs.changed_any_code }}
      is_gitflow_sync:
        description: 'Whether this is a gitflow sync (master merge)'
        value: ${{ jobs.get_metadata.outputs.is_gitflow_sync }}
      has_gitflow_label:
        description: 'Whether the PR has the Gitflow label'
        value: ${{ jobs.get_metadata.outputs.has_gitflow_label }}
      force_skip_cache:
        description: 'Whether to skip caching (schedule or ci-skip-cache label)'
        value: ${{ jobs.get_metadata.outputs.force_skip_cache }}

jobs:
  get_metadata:
    name: Get Metadata
    runs-on: ubuntu-24.04
    permissions:
      pull-requests: read
    steps:
      - name: Check out current commit
        uses: actions/checkout@v6
        with:
          ref: ${{ inputs.head_commit }}
          # We need to check out not only the fake merge commit between the PR and the base branch which GH creates, but
          # also its parents, so that we can pull the commit message from the head commit of the PR
          fetch-depth: 2

      - name: Get metadata
        id: get_metadata
        # We need to try a number of different options for finding the head commit, because each kind of trigger event
        # stores it in a different location
        run: |
          COMMIT_SHA=$(git rev-parse --short ${{ github.event.pull_request.head.sha || github.event.head_commit.id || inputs.head_commit }})
          echo "COMMIT_SHA=$COMMIT_SHA" >> $GITHUB_ENV
          echo "COMMIT_MESSAGE=$(git log -n 1 --pretty=format:%s $COMMIT_SHA)" >> $GITHUB_ENV

      # Most changed packages are determined in job_build via Nx
      - name: Determine changed packages
        uses: dorny/paths-filter@v4.0.1
        id: changed
        with:
          filters: |
            workflow:
              - '.github/**'
            any_code:
              - '!**/*.md'

      - name: Get PR labels
        id: pr-labels
        uses: mydea/pr-labels-action@fn/bump-node20

    outputs:
      commit_label: '${{ env.COMMIT_SHA }}: ${{ env.COMMIT_MESSAGE }}'
      # Note: These next three have to be checked as strings ('true'/'false')!
      is_base_branch:
        ${{ github.ref == 'refs/heads/develop' || github.ref == 'refs/heads/v9' || github.ref == 'refs/heads/v8'}}
      is_release: ${{ startsWith(github.ref, 'refs/heads/release/') }}
      changed_ci: ${{ steps.changed.outputs.workflow == 'true' }}
      changed_any_code: ${{ steps.changed.outputs.any_code == 'true' }}

      # When merging into master, or from master
      is_gitflow_sync: ${{ github.head_ref == 'master' || github.ref == 'refs/heads/master' }}
      has_gitflow_label:
        ${{ github.event_name == 'pull_request' && contains(steps.pr-labels.outputs.labels, ' Gitflow ') }}
      force_skip_cache:
        ${{ github.event_name == 'schedule' || (github.event_name == 'pull_request' &&
        contains(steps.pr-labels.outputs.labels, ' ci-skip-cache ')) }}