tag.yml

name: Creates a tag when closing the stable milestone
on:
  milestone:
    types: [closed]
jobs:
    create_tag:
        name: Creates a tag when the stable branch milestone is closed
        runs-on: ubuntu-latest
        steps:
          - name: Filter milestone by name
            run: |
              echo "RELEASE_MILESTONE=$(echo ${{ github.event.milestone.title }} | grep -P '^s\K[0-9]+\.[0-9]+\.[0-9]+' | sed 's/s//')" >> $GITHUB_ENV
          - name: Print milestone version
            run: |
              echo "stable milestone release: $RELEASE_MILESTONE"
          - name: Fetch full history and checkout stable branch
            uses: actions/checkout@v2
            with:
              ref: stable/${{ env.RELEASE_MILESTONE }}
              fetch-depth: 0
            if: "env.RELEASE_MILESTONE"
          - name: Creates a tag from stable branch
            id: tag_version
            uses: anothrNick/github-tag-action@1.36.0
            env:
              GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
              CUSTOM_TAG: ${{ ENV.RELEASE_MILESTONE }}
              RELEASE_BRANCHES: stable/${{ env.RELEASE_MILESTONE }}
              VERBOSE: false
            if: "env.RELEASE_MILESTONE"
          - name: Get diff between main and stable branch
            run: |
              echo "__DIFF__<<EOF" >> $GITHUB_ENV
              echo $(git diff --name-only origin/master origin/stable/${{ ENV.RELEASE_MILESTONE }}) >> $GITHUB_ENV
              echo "EOF" >> $GITHUB_ENV
            shell: bash
            if: "env.RELEASE_MILESTONE"
          - name: Create github release for tag
            uses: ncipollo/release-action@v1
            with:
              tag: ${{ steps.tag_version.outputs.new_tag }}
              name: Release ${{ steps.tag_version.outputs.new_tag }}
              body: |
                ${{ github.event.milestone.title }}:
                ${{ github.event.milestone.description }}

                Changes:
                ${{ env.__DIFF__ }}
              token: ${{ secrets.GITHUB_TOKEN }}
            if: "env.RELEASE_MILESTONE"
          - name: Expose git commit data
            uses: rlespinasse/git-commit-data-action@v1.x
            if: "env.RELEASE_MILESTONE"
          - name: Create PR to master based on current version
            id: cpr
            uses: repo-sync/pull-request@v2
            with:
              destination_branch: "master"
              source_branch: "stable/${{ env.RELEASE_MILESTONE }}"
              pr_title: "Pulling current release ${{ steps.tag_version.outputs.new_tag }} to master branch"
              pr_body: |
                :crown: *An automated PR*
                Pulling ${{ github.ref }} into master, requested by ${{ env.GIT_COMMIT_COMMITTER }}
                *Commit message*:
                Subject: ${{ env.GIT_COMMIT_MESSAGE_SUBJECT }}
                ${{ env.GIT_COMMIT_MESSAGE_BODY }}
                ${{ steps.tag_version.outputs.changelog }}
              pr_reviewer: "orviz,samuelbernardolip,davrodgon"
              pr_label: "release,critical"
              pr_draft: false
              pr_allow_empty: false
              github_token: ${{ secrets.GITHUB_TOKEN }}
            if: "env.RELEASE_MILESTONE"
          - name: Check PR details
            run: |
              echo "Pull Request Number - ${{ steps.cpr.outputs.pr_number }}"
              echo "Pull Request URL - ${{ steps.cpr.outputs.pr_url }}"
              echo "Pull Request has changed files - ${{ steps.cpr.outputs.has_changed_files }}"
            if: "env.RELEASE_MILESTONE"