update-release-changelog.yml

# On every push to a release branch (release/x.y.z format), this workflow rebuilds the matching
# changelog branch, re-runs the auto-changelog script, and either updates or recreates the changelog PR.
# Note: This workflow validates the branch name to ensure it matches the semantic versioning pattern
# (release/x.y.z) and skips execution for other branch names like release/x.y.z-Changelog.
name: Update Release Changelog PR

on:
  push:
    branches:
      - 'release/*'

concurrency:
  group: update-release-changelog-${{ github.ref }}
  cancel-in-progress: false

jobs:
  validate-branch:
    name: Validate release branch format
    runs-on: ubuntu-latest
    outputs:
      is-valid-release: ${{ steps.check.outputs.is-valid }}
      version: ${{ steps.check.outputs.version }}
    steps:
      - name: Check if branch matches release/x.y.z pattern
        id: check
        run: |
          BRANCH_NAME="${{ github.ref_name }}"
          echo "Checking branch: $BRANCH_NAME"
          
          # Validate branch matches release/x.y.z format (semantic versioning)
          if [[ "$BRANCH_NAME" =~ ^release/[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
            VERSION="${BRANCH_NAME#release/}"
            echo "Valid release branch detected: $BRANCH_NAME (version: $VERSION)"
            echo "is-valid=true" >> "$GITHUB_OUTPUT"
            echo "version=$VERSION" >> "$GITHUB_OUTPUT"
          else
            echo "Branch '$BRANCH_NAME' does not match release/x.y.z pattern. Skipping changelog update."
            echo "is-valid=false" >> "$GITHUB_OUTPUT"
          fi

  refresh-changelog:
    name: Update changelog
    needs: validate-branch
    if: needs.validate-branch.outputs.is-valid-release == 'true'
    permissions:
      contents: write
      pull-requests: write
    uses: MetaMask/github-tools/.github/workflows/update-release-changelog.yml@36dc168896c1b496f35fc880ee8a3625b4b837ba
    with:
      release-branch: ${{ github.ref_name }}
      repository-url: ${{ github.server_url }}/${{ github.repository }}
      platform: mobile
      github-tools-version: 36dc168896c1b496f35fc880ee8a3625b4b837ba
      previous-version-ref: null
    secrets:
      github-token: ${{ secrets.PR_TOKEN }}