slack-release-notification.yaml

name: Slack Release Notification

on:
  push:
    branches:
      - main

jobs:
  checkType:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v3
      with:
        fetch-depth: 0
    - name: Find last merge
      run: |
        echo "current_commit=$(git log --pretty='%H' -1)" >> $GITHUB_ENV
        echo "last_merge=$(git log --pretty='%H' --merges -1 --first-parent)" >> $GITHUB_ENV
    outputs:
      last_merge: ${{ env.last_merge }}
      current_commit: ${{ env.current_commit }}
  directCommit:
    runs-on: ubuntu-latest
    needs: checkType
    if: needs.checkType.outputs.last_merge != needs.checkType.outputs.current_commit
    steps:
    - name: Checkout
      uses: actions/checkout@v3
      with:
        fetch-depth: 0
    - name: get commit message
      run: |
        message=$(git log --pretty=':exclamation: direct commit to main %h by %an (%ae) - %s %b' -1)
        echo "$message"
        echo 'message<<EOF' >> $GITHUB_ENV
        echo "$message" >> $GITHUB_ENV
        echo 'EOF' >> $GITHUB_ENV
    outputs:
      message: ${{ env.message }}
  mergeCommit:
    runs-on: ubuntu-latest
    needs: checkType
    if: needs.checkType.outputs.last_merge == needs.checkType.outputs.current_commit
    steps:
    - name: Checkout
      uses: actions/checkout@v3
      with:
        fetch-depth: 0
    - name: get commit messages
      run: |
        previous_merge=$(git log --pretty="%h" -1 --merges --skip=1 --first-parent)
        echo $previous_merge
        message=$(git log --pretty="-> %h by %an (%ae) - %s %b" --no-merges $previous_merge..${{ needs.checkType.outputs.last_merge }})
        echo "$message"
        direct_commits=$(git log --pretty="%h" --no-merges --first-parent $previous_merge..${{ needs.checkType.outputs.last_merge }})
        while IFS= read -r direct_commit; do
          if [[ ! -z "$direct_commit" ]]; then
            echo "$direct_commit"
            message=$(echo "$message" | grep -v $direct_commit)
          fi
        done <<< "$direct_commits"
        echo "$message"
        echo 'message<<EOF' >> $GITHUB_ENV
        echo ':merge: new code version released:' >> $GITHUB_ENV
        echo "$message" >> $GITHUB_ENV
        echo 'EOF' >> $GITHUB_ENV
    outputs:
      message: ${{ env.message }}
  slack:
    runs-on: ubuntu-latest
    needs: [directCommit, mergeCommit]
    if: ${{ !failure() }}
    steps:
    # the following action is based on a workflow created by Andreas Haller, contact for permissions, the workflow file to import can be found under tools/slack
    - name: Notify Slack
      uses: slackapi/slack-github-action@v1.23.0
      env:
        SLACK_WEBHOOK_URL: ${{ secrets.SLACK_NOTIFICATION_WEBHOOK }}
      with:
        payload: |
          {
            "text": ${{ toJson(needs.directCommit.outputs.message || needs.mergeCommit.outputs.message) }}
          }