# Releases a new major / minor / patch version from a release branch
name: Release Build
on:
  workflow_dispatch:

jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        test-java-version:
          - 8
          - 11
          - 15
    steps:
      - uses: actions/checkout@v2.3.4
        with:
          ref: ${{ github.ref_name }}

      - 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: Test
        uses: gradle/gradle-build-action@v2
        with:
          arguments: 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 }}
    strategy:
      matrix:
        os:
          - windows-2019
          - ubuntu-latest
        smoke-test-suite:
          - jetty
          - liberty
          - payara
          - tomcat
          - tomee
          - websphere
          - wildfly
          - other
        exclude:
          - os: windows-2019
            smoke-test-suite: websphere
    steps:
      - name: Support longpaths
        run: git config --system core.longpaths true
        if: matrix.os == 'windows-2019'

      - uses: actions/checkout@v2.3.4
        with:
          ref: ${{ github.ref_name }}

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

      - name: Test
        uses: gradle/gradle-build-action@v2
        with:
          arguments: ":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
    steps:
      - uses: actions/checkout@v2.3.4
        with:
          ref: ${{ github.ref_name }}

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

      - name: Local publish of artifacts
        uses: gradle/gradle-build-action@v2
        with:
          # javadoc task fails sporadically fetching https://docs.oracle.com/javase/8/docs/api/
          arguments: publishToMavenLocal -x javadoc

      - name: Local publish of gradle plugins
        uses: gradle/gradle-build-action@v2
        with:
          # javadoc task fails sporadically fetching https://docs.oracle.com/javase/8/docs/api/
          arguments: publishToMavenLocal -x javadoc
          build-root-directory: gradle-plugins

      - name: Build distro
        uses: gradle/gradle-build-action@v2
        with:
          arguments: build --init-script ../../.github/scripts/local.init.gradle.kts
          build-root-directory: examples/distro

      - name: Build extension
        uses: gradle/gradle-build-action@v2
        with:
          arguments: build --init-script ../../.github/scripts/local.init.gradle.kts
          build-root-directory: examples/extension

      - name: Run muzzle check against extension
        uses: gradle/gradle-build-action@v2
        with:
          arguments: muzzle --init-script ../../.github/scripts/local.init.gradle.kts
          build-root-directory: examples/extension
          cache-read-only: true

  release:
    needs: [ test, smoke-test, examples ]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2.3.4
        with:
          ref: ${{ github.ref_name }}
          # tags are needed for the generate-release-contributors.sh script
          fetch-depth: 0

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

      - name: Build and publish artifacts
        uses: gradle/gradle-build-action@v2
        with:
          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 }}

      - name: Build and publish gradle plugins
        uses: gradle/gradle-build-action@v2
        env:
          SONATYPE_USER: ${{ secrets.SONATYPE_USER }}
          SONATYPE_KEY: ${{ secrets.SONATYPE_KEY }}
          GRADLE_PUBLISH_KEY: ${{ secrets.GRADLE_PUBLISH_KEY }}
          GRADLE_PUBLISH_SECRET: ${{ secrets.GRADLE_PUBLISH_SECRET }}
          GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
          GPG_PASSWORD: ${{ secrets.GPG_PASSWORD }}
        with:
          # Don't use publishToSonatype since we don't want to publish the marker artifact
          arguments: build publishPlugins publishPluginMavenPublicationToSonatypeRepository closeAndReleaseSonatypeStagingRepository
          build-root-directory: gradle-plugins

      - name: Set versions
        id: set-versions
        run: |
          v=$(grep -Eo "[0-9]+.[0-9]+.0" version.gradle.kts | head -1)
          if [[ $v =~ ([0-9]+).([0-9]+).0 ]]; then
            major="${BASH_REMATCH[1]}"
            minor="${BASH_REMATCH[2]}"
          else
            echo "unexpected version: $v"
            exit 1
          fi
          if [[ $minor == 0 ]]; then
            prior_major=$((major - 1))
            prior_minor=$(grep -Po "^## Version $prior_major.\K([0-9]+)" CHANGELOG.md  | head -1)
            prior="$prior_major.$prior_minor"
          else
            prior="$major.$((minor - 1)).0"
          fi
          echo "::set-output name=release-version::$v"
          echo "::set-output name=prior-version::$prior"

      - name: Generate Release Notes
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          cat > release-notes.txt << EOF
          Note that all artifacts other than `io.opentelemetry.javaagent:opentelemetry-javaagent` have the `-alpha` suffix attached to their version number, reflecting that they are still alpha quality and will continue to have breaking changes. Please see the [VERSIONING.md](https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/VERSIONING.md#opentelemetry-java-instrumentation-versioning) for more details.

          EOF

          sed -n '4,/^## Version /p' CHANGELOG.md \
            | head -n -1 \
            | perl -0pe 's/^\n+//g' \
            | perl -0pe 's/\n+$/\n/g' \
            | sed -r 's,\[#([0-9]+)]\(https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/[0-9]+\),#\1,' \
            | perl -0pe 's/\n +/ /g' \
            >> release-notes.txt

          cat >> release-notes.txt << EOF

          ### 🙇 Thank you
          This release was possible thanks to the following contributors who shared their brilliant ideas and awesome pull requests:

          EOF

          .github/scripts/generate-release-contributors.sh v${{ steps.set-versions.outputs.prior-version }} v${{ steps.set-versions.outputs.release-version }} >> release-notes.txt

      - name: Create Release
        id: create_release
        uses: actions/create-release@v1.1.4
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: v${{ steps.set-versions.outputs.release-version }}
          commitish: ${{ github.ref_name }}
          release_name: Version ${{ steps.set-versions.outputs.release-version }}
          draft: true
          prerelease: false
          body_path: release-notes.txt

      - 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: ${{ steps.create_release.outputs.upload_url }}
          asset_path: javaagent/build/libs/opentelemetry-javaagent-${{ steps.set-versions.outputs.release-version }}.jar
          asset_name: opentelemetry-javaagent.jar
          asset_content_type: application/java-archive