Automate a cherrypick PR into the latest feature branch (#4615)

name: Cherrypick bugfixes to release branch

on:

  push:

    branches:

      - dev

jobs:

  # Check if the PR is a bugfix

  check_labels:

    runs-on: ubuntu-latest

    name: Check PR labels action step

    # Make the output of this job available to other jobs

    outputs: 

      result: ${{steps.check_pr_labels.outputs.result}}

    steps:

    - id: check_pr_labels

      uses: 3pointer/check-pr-labels-on-push-action@v1.0.3

      with:

        github-token: ${{ secrets.GITHUB_TOKEN }}

        labels: '["bug"]'

    # Print the result to the log

    - name: See result

      run: echo "${{ steps.check_pr_labels.outputs.result }}"

  release_pull_request:

    needs: check_labels

    # Only run this step if the code was a bugfix

    if: contains(needs.check_labels.outputs.result, 'true')

    runs-on: ubuntu-latest

    name: release_pull_request

    steps:

    - name: checkout

      uses: actions/checkout@v2.2.0

      # Fetch all info including branches + tags

      with:

        fetch-depth: 0

    - name: 'Get Previous tag'

      id: get_latest_tag

      uses: "WyriHaximus/github-action-get-previous-tag@v1"

    - id: get_short_version

      # Get the major / minor version without patch info i.e. 6.0 from 6.0.1

      run: |

        major_minor=$(echo ${{steps.get_latest_tag.outputs.tag}} | cut -d '.' -f 1,2)

        echo "::set-output name=major_minor::$major_minor"

    - name: Create PR to branch

      uses: adamtharani/github-action-cherry-pick@master

      # PR to the latest feature release.  Merges are enabled

      with:

        pr_branch: ${{steps.get_short_version.outputs.major_minor}}

      env:

        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

        DRY_RUN: true