release.yml

name: Release to Maven Central
env:
  MAVEN_ARGS: -V -ntp -e
on:
  release:
    types: [ released ]
jobs:

  prepare-release:
    runs-on: ubuntu-latest
    env:
      tmp_version_branch: ''
    outputs:
      version_branch: ${{ steps.set-version-branch.outputs.version_branch }}
    steps:
      - if: ${{ startsWith(github.event.release.tag_name, 'v1.' ) }}
        run: |
          echo "Setting version_branch to v1"
          echo "tmp_version_branch=v1" >> "$GITHUB_ENV"
      - if: ${{ startsWith(github.event.release.tag_name, 'v2.' ) }}
        run: |
          echo "Setting version_branch to v2"
          echo "tmp_version_branch=v2" >> "$GITHUB_ENV"
      - if: ${{ startsWith(github.event.release.tag_name, 'v3.' ) }}
        run: |
          echo "Setting version_branch to v3"
          echo "tmp_version_branch=v3" >> "$GITHUB_ENV"
      - if: ${{ startsWith(github.event.release.tag_name, 'v4.' ) }}
        run: |
          echo "Setting version_branch to v4"
          echo "tmp_version_branch=v4" >> "$GITHUB_ENV"
      - if: ${{ startsWith(github.event.release.tag_name, 'v5.' ) }}
        run: |
          RELEASE_VERSION="${{ github.event.release.tag_name }}"
          RELEASE_VERSION="${RELEASE_VERSION#v}"
          RELEASE_MAJOR_MINOR=$(echo "$RELEASE_VERSION" | cut -d. -f1-2)

          MAIN_POM_VERSION=$(curl -fsSL "https://raw.githubusercontent.com/${{ github.repository }}/main/pom.xml" | yq -p xml '.project.version')
          if [ -z "$MAIN_POM_VERSION" ]; then
            echo "Failed to determine main branch POM version"
            exit 1
          fi
          MAIN_MAJOR_MINOR=$(echo "$MAIN_POM_VERSION" | cut -d. -f1-2)

          echo "Release tag major.minor: $RELEASE_MAJOR_MINOR"
          echo "Main branch major.minor: $MAIN_MAJOR_MINOR"

          if [ "$RELEASE_MAJOR_MINOR" = "$MAIN_MAJOR_MINOR" ]; then
            echo "Setting version_branch to main"
            echo "tmp_version_branch=main" >> "$GITHUB_ENV"
          else
            echo "Setting version_branch to ${RELEASE_MAJOR_MINOR}.x"
            echo "tmp_version_branch=${RELEASE_MAJOR_MINOR}.x" >> "$GITHUB_ENV"
          fi
      - if: ${{ env.tmp_version_branch == '' }}
        name: Fail if version_branch is not set
        run: |
          echo "Failed to find appropriate branch to release ${{github.event.release.tag_name}} from"
          exit 1
      - id: set-version-branch
        name: Set version_branch if matched
        run: echo "version_branch=${{env.tmp_version_branch}}" >> $GITHUB_OUTPUT

  release-sdk:
    needs: prepare-release
    uses: ./.github/workflows/release-project-in-dir.yml
    secrets: inherit
    with:
      version_branch: ${{needs.prepare-release.outputs.version_branch}}
      project_dir: '.'