create_release.yml

---
name: create_release

# We create a release version on a trigger tag, regardless of if the commit is
# documentation-only.
on:  # yamllint disable-line rule:truthy
  push:
    tags:  # e.g. release-1.2.3
      - 'release-[0-9]+.[0-9]+.[0-9]+**'

jobs:
  create_release:
    runs-on: ubuntu-22.04  # newest available distribution, aka jellyfish
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4
        with:
          # Prevent use of implicit GitHub Actions read-only GITHUB_TOKEN
          # because maven-release-plugin pushes commits to master.
          token: ${{ secrets.GH_TOKEN }}
      - name: Setup java
        uses: actions/setup-java@v4
        with:
          distribution: 'zulu'  # zulu as it supports a wide version range
          java-version: '17'  # earliest LTS supported by Spring Boot 3
      - name: Cache local Maven repository
        uses: actions/cache@v4
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-jdk-17-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: ${{ runner.os }}-jdk-17-maven-
      - name: Create Release
        env:
          # GH_USER=<user that created GH_TOKEN>
          GH_USER: ${{ secrets.GH_USER }}
          # GH_TOKEN=<hex token value>
          # * makes release commits and tags
          # * needs repo:status, public_repo
          # * referenced in .settings.xml
          GH_TOKEN: ${{ secrets.GH_TOKEN }}
        run: |  # GITHUB_REF will be refs/tags/release-MAJOR.MINOR.PATCH
          build-bin/git/login_git &&
          build-bin/maven/maven_release $(echo ${GITHUB_REF} | cut -d/ -f 3)