release.yml

# Kicks off the release process:
#
# * Sets release version
# * Builds
# * Tests
# * Creates artifacts for binaries and sources
# * Signs artifacts
# * Uploads artifacts to TBD Artifactory
# * Tags git with release number "v$version"
# * Keeps development version in the pom.xml to 0.0.0-main-SNAPSHOT
# * Pushes changes to git
# * Triggers job to:
#   * Build from tag and upload to Maven Central
#   * Create GitHub Release "v$version"
#   * Publish API Docs

name: release
on:
  workflow_dispatch:
    inputs:
      version:
        description: '(Required) The version to release. Must be a real version, not a SNAPSHOT (ie. ending in "-SNAPSHOT"). For example "1.0.0", "1.0.0-alpha-1".'
        required: true
jobs:
  release-artifactory:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: true
          token: ${{ secrets.TBD_RELEASE_GITHUB_PERSONAL_ACCESS_TOKEN }}

      # https://cashapp.github.io/hermit/usage/ci/
      - name: Init Hermit
        uses: cashapp/activate-hermit@v1

      - uses: actions/cache@v3
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-maven-

      # Used in writing commits in the release process
      - name: Set Git Config
        run: |
          git config user.name "tbd-releases"
          git config user.email "releases@tbd.email"

      # This will set versions, git tag, sign, and publish to TBD Artifactory. Does not release to Maven Central.
      - name: Release and Publish to TBD Artifactory
        run: |

          # Get the required provided version
          version=${{ github.event.inputs.version }}
          # Precondition check; do not allow this to proceed if a version ending in "-SNAPSHOT" was specified
          if [[ $version =~ -SNAPSHOT$ ]]; then
            echo "Error: The version for release must not end with \"-SNAPSHOT\": $version"
            exit 1
          fi

          # Get the existing version from the POM and set it to the nextVersion, keeping the POM effectively versionless
          nextVersion=$(grep -oPm1 "(?<=<version>)[^<]+" pom.xml) 
          if [[ -z $nextVersion ]]; then
            echo "Error: Could not find a version in the pom.xml"
            exit 1
          fi

          echo "Version to be released: $version"
          echo "Setting next development version back to original in pom.xml: $nextVersion"

          mvn -e \
            release:prepare \
            release:perform \
            --batch-mode \
            --settings .maven_settings.xml \
            -DreleaseVersion=$version \
            -DdevelopmentVersion=$nextVersion \
            -P sign-artifacts
        env:
          ARTIFACTORY_USERNAME: ${{ secrets.ARTIFACTORY_USERNAME }}
          ARTIFACTORY_PASSWORD: ${{ secrets.ARTIFACTORY_PASSWORD }}
          TBD_RELEASE_GITHUB_PERSONAL_ACCESS_TOKEN: ${{ secrets.TBD_RELEASE_GITHUB_PERSONAL_ACCESS_TOKEN }}
          SIGN_KEY_PASS: ${{ secrets.GPG_SECRET_PASSPHRASE }}
          SIGN_KEY: ${{ secrets.GPG_SECRET_KEY }}

  release-maven-central:
    needs: release-artifactory
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          ref: v${{ github.event.inputs.version }}
          submodules: true

      # https://cashapp.github.io/hermit/usage/ci/
      - name: Init Hermit
        uses: cashapp/activate-hermit@v1

      - uses: actions/cache@v3
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-maven-

      - name: Build, Test, and Deploy to Maven Central
        run: |
          echo $(git describe --tags)
          # Maven deploy lifecycle will build, run tests, verify, sign, and deploy
          mvn \
            deploy \
              -P ossrh,sign-artifacts \
              --batch-mode \
              --settings .maven_settings.xml
        env:
          SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
          SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
          SIGN_KEY_PASS: ${{ secrets.GPG_SECRET_PASSPHRASE }}
          SIGN_KEY: ${{ secrets.GPG_SECRET_KEY }}

      - name: Download Dokka CLI and Build HTML APIDocs
        working-directory: .
        run: ./dokka/gen.sh
      - name: Upload artifact
        uses: actions/upload-artifact@v2
        with:
          name: docs
          path: target/apidocs

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v1
        with:
          tag_name: v${{ github.event.inputs.version }}
          draft: false
          prerelease: false
          generate_release_notes: true

  publish-docs:
    runs-on: ubuntu-latest
    needs: [release-maven-central]
    steps:
      - uses: actions/download-artifact@v2
        with:
          path: public
      - name: Deploy
        uses: peaceiris/actions-gh-pages@v3
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          keep_files: true
          publish_dir: ./public
          full_commit_message: Publish documentation to GitHub pages