# Releases a patch by cherrypicking commits into a release branch based on the previous
# release tag.
name: Patch Release Build
on:
  workflow_dispatch:
    inputs:
      version:
        description: The version to tag the release with, e.g., 1.2.1, 1.2.2
        required: true
      commits:
        description: List of commit shas to cherrypick. Multiple shas should be separated by spaces.
        required: false

jobs:
  prepare-release-branch:
    runs-on: ubuntu-latest
    outputs:
      release-branch-name: ${{ steps.parse-release-branch.outputs.release-branch-name }}
    steps:
      - id: parse-release-branch
        name: Parse release branch name
        run: |
          # Sets the release-branch-name output to the version number with the last non-period element replaced with an 'x' and preprended with v.
          echo "::set-output name=release-branch-name::$(echo '${{ github.event.inputs.version }}' | sed -E 's/([^.]+)\.([^.]+)\.([^.]+)/v\1.\2.x/')"
          # Sets the release-tag-name output to the version number with the last non-period element replace with a '0' and prepended with v
          echo "::set-output name=release-tag-name::$(echo '${{ github.event.inputs.version }}' | sed -E 's/([^.]+)\.([^.]+)\.([^.]+)/v\1.\2.0/')"

      - id: checkout-release-branch
        name: Check out release branch
        continue-on-error: true
        uses: actions/checkout@v2.3.4
        with:
          ref: ${{ steps.parse-release-branch.outputs.release-branch-name }}
          fetch-depth: 0

      - id: checkout-release-tag
        name: Check out release tag
        if: ${{ steps.checkout-release-branch.outcome == 'failure' }}
        uses: actions/checkout@v2.3.4
        with:
          ref: ${{ steps.parse-release-branch.outputs.release-tag-name }}
          fetch-depth: 0

      - name: Create release branch
        if: ${{ steps.checkout-release-tag.outcome == 'success' }}
        run: |
          git checkout -b ${{ steps.parse-release-branch.outputs.release-branch-name }}
          git push --set-upstream origin ${{ steps.parse-release-branch.outputs.release-branch-name }}

  test:
    runs-on: ubuntu-latest
    needs: prepare-release-branch
    strategy:
      matrix:
        test-java-version:
          - 8
          - 11
          - 15
    steps:
      - uses: actions/checkout@v2.3.4
        with:
          ref: ${{ needs.prepare-release-branch.outputs.release-branch-name }}
          fetch-depth: 0

      - id: setup-test-java
        name: Set up JDK ${{ matrix.test-java-version }} for running tests
        uses: actions/setup-java@v2
        with:
          distribution: adopt
          java-version: ${{ matrix.test-java-version }}

      - name: Set up JDK 11 for running Gradle
        uses: actions/setup-java@v2
        with:
          distribution: adopt
          java-version: 11

      - name: Restore cache
        uses: burrunan/gradle-cache-action@v1.10
        with:
          job-id: jdk${{ matrix.test-java-version }}
          read-only: true

      - name: Cache Gradle Wrapper
        uses: actions/cache@v2
        with:
          path: ~/.gradle/wrapper
          key: ${{ runner.os }}-gradle-wrapper-cache-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties') }}

      - name: Setup git name
        run: |
          git config user.name github-actions
          git config user.email github-actions@github.com

      - name: Cherrypicks
        if: ${{ github.event.inputs.commits != '' }}
        run: |
          git fetch origin main
          git cherry-pick ${{ github.event.inputs.commits }} 

      - name: Test
        run: ./gradlew test -PtestJavaVersion=${{ matrix.test-java-version }} -Porg.gradle.java.installations.paths=${{ steps.setup-test-java.outputs.path }} -Porg.gradle.java.installations.auto-download=false

  # testLatestDeps is intentionally not included in the release workflows
  # because any time a new library version is released to maven central
  # it can fail due to test code incompatibility with the new library version,
  # or due to slight changes in emitted telemetry

  smoke-test:
    runs-on: ${{ matrix.os }}
    needs: prepare-release-branch
    strategy:
      matrix:
        os:
          - windows-latest
          - ubuntu-latest
        smoke-test-suite:
          - jetty
          - liberty
          - payara
          - tomcat
          - tomee
          - websphere
          - wildfly
          - other
        exclude:
          - os: windows-latest
            smoke-test-suite: websphere
    steps:
      - name: Support longpaths
        run: git config --system core.longpaths true
        if: matrix.os == 'windows-latest'

      - uses: actions/checkout@v2.3.4
        with:
          ref: ${{ needs.prepare-release-branch.outputs.release-branch-name }}
          fetch-depth: 0

      - name: Set up JDK 11 for running Gradle
        uses: actions/setup-java@v2
        with:
          distribution: adopt
          java-version: 11

      - name: Restore cache
        uses: burrunan/gradle-cache-action@v1.10
        with:
          job-id: smokeTests
          read-only: true

      - name: Cache Gradle Wrapper
        uses: actions/cache@v2
        with:
          path: ~/.gradle/wrapper
          key: ${{ runner.os }}-gradle-wrapper-cache-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties') }}

      - name: Setup git name
        run: |
          git config user.name github-actions
          git config user.email github-actions@github.com

      - name: Cherrypicks
        if: ${{ github.event.inputs.commits != '' }}
        run: |
          git fetch origin main
          git cherry-pick ${{ github.event.inputs.commits }}

      - name: Test
        run: ./gradlew :smoke-tests:test -PsmokeTestSuite=${{ matrix.smoke-test-suite }}

  # muzzle is intentionally not included in the release workflows
  # because any time a new library version is released to maven central it can fail,
  # and this is not a reason to hold up the release

  examples:
    runs-on: ubuntu-latest
    needs: prepare-release-branch
    steps:
      - uses: actions/checkout@v2.3.4
        with:
          ref: ${{ needs.prepare-release-branch.outputs.release-branch-name }}
          fetch-depth: 0

      - name: Set up JDK 11 for running Gradle
        uses: actions/setup-java@v2
        with:
          distribution: adopt
          java-version: 11

      - name: Cache Gradle Wrapper
        uses: actions/cache@v2
        with:
          path: ~/.gradle/wrapper
          key: ${{ runner.os }}-gradle-wrapper-cache-${{ hashFiles('examples/distro/gradle/wrapper/gradle-wrapper.properties') }}

      - name: Setup git name
        run: |
          git config user.name github-actions
          git config user.email github-actions@github.com

      - name: Cherrypicks
        if: ${{ github.event.inputs.commits != '' }}
        run: |
          git fetch origin main
          git cherry-pick ${{ github.event.inputs.commits }}

      - name: Local publish of artifacts
        # javadoc task fails sporadically fetching https://docs.oracle.com/javase/8/docs/api/
        run: ./gradlew publishToMavenLocal -x javadoc

      - name: Local publish of gradle plugins
        # javadoc task fails sporadically fetching https://docs.oracle.com/javase/8/docs/api/
        run: ../gradlew publishToMavenLocal -x javadoc
        working-directory: gradle-plugins

      - name: Build distro
        run: ./gradlew build --init-script ../../.github/scripts/local.init.gradle.kts
        working-directory: examples/distro

      - name: Build extension
        run: ./gradlew build --init-script ../../.github/scripts/local.init.gradle.kts
        working-directory: examples/extension

  release:
    runs-on: ubuntu-latest
    needs: [ prepare-release-branch, test, smoke-test, examples ]
    steps:
      - uses: actions/checkout@v2.3.4
        with:
          ref: ${{ needs.prepare-release-branch.outputs.release-branch-name }}
          fetch-depth: 0

      - name: Set up JDK 11 for running Gradle
        uses: actions/setup-java@v2
        with:
          distribution: adopt
          java-version: 11

      - name: Setup git name
        run: |
          git config user.name github-actions
          git config user.email github-actions@github.com

      - name: Cherrypicks
        if: ${{ github.event.inputs.commits != '' }}
        run: |
          git fetch origin main
          git cherry-pick ${{ github.event.inputs.commits }}

      - name: Build and publish artifacts
        uses: burrunan/gradle-cache-action@v1.10
        with:
          job-id: jdk11
          remote-build-cache-proxy-enabled: false
          arguments: assemble publishToSonatype closeAndReleaseSonatypeStagingRepository
        env:
          SONATYPE_USER: ${{ secrets.SONATYPE_USER }}
          SONATYPE_KEY: ${{ secrets.SONATYPE_KEY }}
          GRGIT_USER: ${{ github.actor }}
          GRGIT_PASS: ${{ secrets.GITHUB_TOKEN }}
          GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
          GPG_PASSWORD: ${{ secrets.GPG_PASSWORD }}

        # TODO (trask) cache gradle wrapper?
      - name: Build and publish gradle plugins
        env:
          GRADLE_PUBLISH_KEY: ${{ secrets.GRADLE_PUBLISH_KEY }}
          GRADLE_PUBLISH_SECRET: ${{ secrets.GRADLE_PUBLISH_SECRET }}
        run: ../gradlew build publishPlugins
        working-directory: gradle-plugins

      - name: Push cherry-picked changes to the release branch
        run: git push

      - name: Create Release
        id: create_release
        uses: actions/create-release@v1.1.4
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: v${{ github.event.inputs.version }}
          commitish: ${{ needs.prepare-release-branch.outputs.release-branch-name }}
          release_name: Release v${{ github.event.inputs.version }}
          draft: true
          prerelease: false

      - name: Upload Release Asset
        id: upload-release-asset
        uses: actions/upload-release-asset@v1.0.2
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ steps.create_release.outputs.upload_url }}
          asset_path: javaagent/build/libs/opentelemetry-javaagent-${{ github.event.inputs.version }}.jar
          asset_name: opentelemetry-javaagent.jar
          asset_content_type: application/java-archive