release-beta.yml

name: Release beta

on:
  workflow_dispatch:
    inputs:
      approval:
        description: 'Do you really want to release a BETA from configured BRANCH?'
        required: true
        default: 'NO'

env:
  MVN_ARGS: --batch-mode --errors --fail-fast --no-transfer-progress

jobs:
  default:

    runs-on: ubuntu-latest

    steps:
      - name: Verify approval
        run: "[[ $(echo ${{ github.event.inputs.approval }} | tr 'a-z' 'A-Z') == 'YES' ]]"

      - uses: actions/checkout@v2
        with:
          fetch-depth: 0
          token: ${{ secrets.TRIGGER_ACTIONS_GITHUB_TOKEN }}

      - name: Verify for release or hotfix branch
        run: "[[ $( git branch --show-current ) =~ ^release.*|^hotfix.* ]]"

      - uses: actions/setup-java@v1
        with:
          java-version: 8

      - name: Cache local Maven repository
        uses: actions/cache@v2
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: ${{ runner.os }}-maven-

      - name: Configure Git user
        run: |
          git config user.email "ops+githubactions@retest.de"
          git config user.name "retest release github action"

      - id: next_beta
        name: Find next beta version
        run: |
            # get next stable release version from pom.xml
            RELEASE_VERSION=$( mvn help:evaluate -Dexpression=project.version -q -DforceStdout | sed 's/-SNAPSHOT//' )
            # find last beta for this version using git tags. Prefix with 0 als default for next line
            LAST_BETA_TAG=0$( git for-each-ref --sort=-taggerdate --count=1 --format '%(refname:short)' "refs/tags/v${RELEASE_VERSION}-beta.*" )
            # Create string for beta version
            NEXT_BETA="$RELEASE_VERSION-beta.$((1+"${LAST_BETA_TAG/v$RELEASE_VERSION-beta./}"))"
            echo "::set-output name=version::$NEXT_BETA"

      - name: Create beta release tag
        run: |
          mvn versions:set -DnewVersion=${{ steps.next_beta.outputs.version }} -DgenerateBackupPoms=false
          git commit -a -m "ci: release ${{ steps.next_beta.outputs.version }}"
          git tag -a v${{ steps.next_beta.outputs.version }} -m "ci: tag beta release ${{ steps.next_beta.outputs.version }}"
          git push --tags