generateAutoConfigs.yaml

name: Generate Spring Auto-Configurations
on:
  workflow_dispatch:
    inputs:
      branch_name:
        description: PR branch name
        required: true
        default: "renovate/main-gcp-libraries-bom.version"
      forked_repo:
        description: Fork name (enter none if repo branch)
        required: true
        default: "renovate-bot/GoogleCloudPlatform-_-spring-cloud-gcp"
  pull_request:
    types: [opened]
jobs:
  generateLibraries:
    # Run this if workflow is manually triggered
    # On initial opening of renovate or dependabot PR with matching branch condition,
    # log information required for manually triggering workflow and exit with error to block PR
    if: ${{ (github.event_name == 'workflow_dispatch') || startsWith(github.head_ref, 'renovate/main-gcp-libraries-bom.version') || startsWith(github.head_ref, 'dependabot/maven/com.google.cloud-libraries-bom') }}
    runs-on: ubuntu-20.04
    steps:
      - uses: actions/checkout@v2
      - name: Get PR info
        id: get_pr_info
        continue-on-error: false
        if: ${{ github.event_name == 'pull_request' }}
        run: |
          echo "Please trigger update workflow manually. The following information may be helpful: "
          echo "PR head repo full name: $HEAD_REPO_NAME"
          echo "PR base repo full name: $BASE_REPO_NAME"
          echo "PR branch name: $PR_BRANCH_NAME"
          echo "Actor from PR event: $GITHUB_ACTOR"
          exit 1
        env:
          HEAD_REPO_NAME: ${{ github.event.pull_request.head.repo.full_name }}
          BASE_REPO_NAME: ${{ github.event.pull_request.base.repo.full_name }}
          PR_BRANCH_NAME: ${{ github.head_ref }}
      - name: Get libraries bom version
        id: get_libraries_bom_version
        continue-on-error: false
        # Fetch updated pom file with the new libraries-bom version.
        # This step differs slightly depending on whether the workflow is triggered for a forked repo.
        run: |
          set -x
          sudo apt-get update
          sudo apt-get install libxml2-utils
          if [[ ${{ github.event.inputs.forked_repo }} != "none" ]]; then
            git fetch https://github.com/${{ github.event.inputs.forked_repo }}.git ${{ github.event.inputs.branch_name }}
            git checkout FETCH_HEAD -- spring-cloud-gcp-dependencies/pom.xml
          else 
            git fetch origin ${{ github.event.inputs.branch_name }}
            git checkout origin/${{ github.event.inputs.branch_name }} -- spring-cloud-gcp-dependencies/pom.xml
          fi
          echo "LIBRARIES_BOM_VERSION=$(xmllint --xpath "string(//*[local-name()='gcp-libraries-bom.version'])" spring-cloud-gcp-dependencies/pom.xml)" >> $GITHUB_OUTPUT
      - name: Setup Java 17
        uses: actions/setup-java@v1
        with:
          java-version: 17
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - run: bazelisk version
      - uses: actions/setup-go@v3
      - name: Install buildozer
        run: |
          go install github.com/bazelbuild/buildtools/buildozer@latest
          export PATH=$PATH:$(go env GOPATH)/bin
          buildozer --version
      - name: Compile non-autogen libraries
        continue-on-error: false
        run: |
          set -e
          ./mvnw \
            --batch-mode \
            --no-transfer-progress \
            --show-version \
            --threads 1.5C \
            --define maven.test.skip=true \
            --define maven.javadoc.skip=true \
            install
      - name: Generate libraries
        continue-on-error: false
        working-directory: spring-cloud-generator
        run: |
          set -x
          set -e
          export PATH=$PATH:$(go env GOPATH)/bin
          buildozer --version
          bash scripts/generate.sh
        env:
          LIBRARIES_BOM_VERSION: ${{ steps.get_libraries_bom_version.outputs.LIBRARIES_BOM_VERSION }}
      - name: Sanity checks
        continue-on-error: false
        working-directory: spring-cloud-generator
        run: |
          set -x
          bash scripts/sanity-checks.sh
      - name: Check for generation errors
        continue-on-error: false
        working-directory: spring-cloud-generator
        run: |
          set -xe
          if [[ ! -d failed-library-generations ]] || [[ $(ls *failed-library-generations | wc -l) -eq 0 ]]; then
            echo 'no errors at generation'
            exit 0
          fi
          for failed_lib_name in $(find failed-library-generations -printf '%f\n' | tail -n+2); do
            echo "***** FAILED TO GENERATE LIBRARY: $failed_lib_name"
            cat failed-library-generations/$failed_lib_name
          done
          exit 1
      #Compares the current contents of spring-cloud-previews with the new generated libraries
      - name: Detect changes
        id: detect_changes
        run: |
          set -x

          # Counts number of changed files
          git add ./spring-cloud-previews
          CHANGED_FILES=`git diff --cached --numstat | wc -l | awk '{print $1}'`
          git reset -- ./spring-cloud-previews # unstage changes

          echo "$CHANGED_FILES have changed after generation"
          if [[ $CHANGED_FILES -eq 0 ]]; then
            echo "Branch will not be updated"
          fi
          echo "CHANGED_FILES=$CHANGED_FILES" >> $GITHUB_OUTPUT
      - name: Push commit to branch
        if: steps.detect_changes.outputs.CHANGED_FILES > 0
        run: |
          set -x
          
          # stashes the changes from generated libs
          git stash push -- spring-cloud-previews/
          
          # configure author
          git config --global user.name "Cloud Java Bot"
          git config --global user.email "cloud-java-bot@google.com"
          
          # push changes to branch
          if [[ ${{ github.event.inputs.forked_repo }} != "none" ]]; then
            git fetch https://github.com/${{ github.event.inputs.forked_repo }}.git ${{ github.event.inputs.branch_name }}
            git checkout FETCH_HEAD
            git stash pop
            git add ./spring-cloud-previews
            git commit -m "chore: update starter modules in spring-cloud-previews"
            git push https://github.com/${{ github.event.inputs.forked_repo }}.git HEAD:${{ github.event.inputs.branch_name }}
          else
            git fetch origin ${{ github.event.inputs.branch_name }}
            git checkout ${{ github.event.inputs.branch_name }}
            git reset --hard
            git stash pop
            git add ./spring-cloud-previews
            git commit -m "chore: update starter modules in spring-cloud-previews"
            git push -u origin ${{ github.event.inputs.branch_name }}
          fi

        env:
          GITHUB_ACTOR_EMAIL: ${{ steps.determine_workflow_author_email.outputs.GITHUB_ACTOR_EMAIL }}
          GITHUB_ACTOR_NAME: ${{ steps.determine_workflow_author_email.outputs.GITHUB_ACTOR_NAME }}
          GITHUB_TOKEN: ${{ secrets.CLOUD_JAVA_BOT_GITHUB_TOKEN }}