.github/workflows/auto-merge.yml

# Workflow to cherry-pick changes from main to release branch.

name: auto-merge

on:
  push:
    branches: [ main ]

env:
  RELEASE_BRANCH: "2.3.11-release"

jobs:
  test:
    strategy:
      fail-fast: false
      matrix:
        test-suite: [ api-check, unit-test, integration-test-primary, integration-test-secondary, integration-test-android, integration-test-agp, gradle-check ]
    runs-on: ubuntu-latest
    continue-on-error: ${{ matrix.test-suite == 'integration-test-secondary' || matrix.test-suite == 'integration-test-android' || matrix.test-suite == 'integration-test-agp' }}
    permissions:
      contents: write

    steps:
      - name: Free Disk Space (Ubuntu)
        run: |
          echo "Disk space before cleanup:"
          df -h

          set -xe
          sudo rm -rf /usr/share/dotnet
          sudo rm -rf /usr/share/swift
          sudo rm -rf /opt/ghc
          sudo rm -rf /usr/local/.ghcup
          sudo rm -rf "/usr/local/share/boost"
          sudo rm -rf /opt/hostedtoolcache/
          sudo rm -rf /usr/local/graalvm/
          sudo rm -rf /usr/local/share/powershell
          sudo rm -rf /usr/local/share/chromium
          sudo rm -rf /usr/local/lib/node_modules

          sudo docker image prune --all --force

          echo "Disk space after cleanup:"
          df -h

      # Checkout
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1
        with:
          fetch-depth: 0
          ref: ${{ env.RELEASE_BRANCH }}

      - name: merge commits from main to release branch
        run: |
          # Cherry pick new changes from main, except for version bumps.
          # A commit is a version bump IFF it touches third_party/prebuilt/repo
          DONT_PICK=$(cat <<EOF
          5c073ba9c1283190467937b4456be9174b9be86c
          EOF
          )
          git config --global user.email "kotlin-symbol-processing@google.com"
          git config --global user.name "KSP Auto Pick"
          MERGE_BASE=$(git merge-base HEAD origin/main)
          CANDIDATES=$(git log --pretty=%H $MERGE_BASE..origin/main)
          PICKED=$(git log $MERGE_BASE..HEAD | sed -n "s/^[ ]*(cherry picked from commit \([a-z0-9]*\))$/\1/p")
          VERSION_BUMPS=$(git log $MERGE_BASE..origin/main --pretty=%H --grep UPDATE_KOTLIN_VERSION)
          TO_PICK=$(grep -Fxv -f <(echo "$PICKED"; echo "$VERSION_BUMPS"; echo "$DONT_PICK") <(echo "$CANDIDATES") | awk '{a[i++]=$0} END {for (j=i-1; j>=0;) print a[j--] }')
          echo Picking $TO_PICK
          if [ -n "$TO_PICK" ]; then git cherry-pick -x --allow-empty $TO_PICK; fi

      - name: Setup Java 17
        uses: actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95
        with:
          java-version: '17'
          distribution: 'zulu'

      # Build cache
      - name: Cache Gradle Cache
        uses: actions/cache@v5
        with:
          path: ~/.gradle/caches
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle.kts') }}-${{ hashFiles('**/gradle.properties') }}
          # An ordered list of keys to use for restoring the cache if no cache hit occurred for key
          restore-keys: |
            ${{ runner.os }}-gradle-
      - name: Cache gradle wrapper
        uses: actions/cache@v5
        with:
          path: ~/.gradle/wrapper
          key: ${{ runner.os }}-gradle-wrapper-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties') }}

      # Check API compatibility
      - name: API compatibility check
        if: matrix.test-suite == 'api-check'
        run: ./gradlew :api:checkApi

      - name: Run unit tests
        if: matrix.test-suite == 'unit-test'
        run: ./gradlew :kotlin-analysis-api:test --stacktrace --info --max-workers=1 --no-parallel -Dorg.gradle.vfs.watch=false -Dorg.gradle.jvmargs="-Xmx20248m -Dkotlin.daemon.jvm.options=-Xmx2048m"

      - name: Run primary integration tests
        if: matrix.test-suite == 'integration-test-primary'
        run: ./gradlew :integration-tests:primaryTest --stacktrace --info --max-workers=1 --no-parallel -Dorg.gradle.vfs.watch=false -Dorg.gradle.jvmargs="-Xmx20248m -Dkotlin.daemon.jvm.options=-Xmx2048m"

      - name: Run secondary integration tests
        if: matrix.test-suite == 'integration-test-secondary'
        run: ./gradlew :integration-tests:secondaryTest --stacktrace --info --max-workers=1 --no-parallel -Dorg.gradle.vfs.watch=false -Dorg.gradle.jvmargs="-Xmx20248m -Dkotlin.daemon.jvm.options=-Xmx2048m"

      - name: Run android integration tests
        if: matrix.test-suite == 'integration-test-android'
        run: ./gradlew :integration-tests:androidTest --stacktrace --info --max-workers=1 --no-parallel -Dorg.gradle.vfs.watch=false -Dorg.gradle.jvmargs="-Xmx20248m -Dkotlin.daemon.jvm.options=-Xmx2048m"

      - name: Run agp integration tests
        if: matrix.test-suite == 'integration-test-agp'
        run: ./gradlew :integration-tests:agpTest --stacktrace --info --max-workers=1 --no-parallel -Dorg.gradle.vfs.watch=false -Dorg.gradle.jvmargs="-Xmx20248m -Dkotlin.daemon.jvm.options=-Xmx2048m"

      - name: Run remaining tests and checks
        if: matrix.test-suite == 'gradle-check'
        run: ./gradlew check -x :kotlin-analysis-api:test -x :integration-tests:primaryTest -x :integration-tests:secondaryTest -x :integration-tests:androidTest -x :integration-tests:agpTest --stacktrace --info --max-workers=1 --no-parallel -Dorg.gradle.vfs.watch=false -Dorg.gradle.jvmargs="-Xmx20248m -Dkotlin.daemon.jvm.options=-Xmx2048m"

      - name: Upload test results
        if: always()
        uses: actions/upload-artifact@v7
        with:
          name: test-reports-${{ matrix.test-suite }}
          path: |
            integration-tests/build/reports
            gradle-plugin/build/reports
            common-util/build/reports
            kotlin-analysis-api/build/reports

  push:
    needs: test
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      # Checkout
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1
        with:
          fetch-depth: 0
          ref: ${{ env.RELEASE_BRANCH }}

      - name: merge commits from main to release branch
        run: |
          # Cherry pick new changes from main, except for version bumps.
          # A commit is a version bump IFF it touches third_party/prebuilt/repo
          DONT_PICK=$(cat <<EOF
          5c073ba9c1283190467937b4456be9174b9be86c
          EOF
          )
          git config --global user.email "kotlin-symbol-processing@google.com"
          git config --global user.name "KSP Auto Pick"
          MERGE_BASE=$(git merge-base HEAD origin/main)
          CANDIDATES=$(git log --pretty=%H $MERGE_BASE..origin/main)
          PICKED=$(git log $MERGE_BASE..HEAD | sed -n "s/^[ ]*(cherry picked from commit \([a-z0-9]*\))$/\1/p")
          VERSION_BUMPS=$(git log $MERGE_BASE..origin/main --pretty=%H --grep UPDATE_KOTLIN_VERSION)
          TO_PICK=$(grep -Fxv -f <(echo "$PICKED"; echo "$VERSION_BUMPS"; echo "$DONT_PICK") <(echo "$CANDIDATES") | awk '{a[i++]=$0} END {for (j=i-1; j>=0;) print a[j--] }')
          echo Picking $TO_PICK
          if [ -n "$TO_PICK" ]; then git cherry-pick -x --allow-empty $TO_PICK; fi

      - name: push to release branch
        run: git fetch && git rebase && git push origin