showcase-version-check.yaml

# Copyright 2026 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

name: Showcase Version Check

on:
  schedule:
    - cron: '30 3 * * *' # Run daily at 3:30 AM UTC
  workflow_dispatch: # Allow manual trigger
  pull_request:
    paths:
      - 'librarian.yaml'
      - 'java-showcase/gapic-showcase/pom.xml'
      - '.github/workflows/showcase-version-check.yaml'

jobs:
  check-version:
    runs-on: ubuntu-latest
    permissions:
      issues: write
    steps:
      - uses: actions/checkout@v4
      - name: Extract showcase version from pom.xml
        id: extract_version
        shell: bash
        run: |
          version=$(awk -F'[<>]' '/gapic-showcase.version/{print $3; exit}' java-showcase/gapic-showcase/pom.xml)
          echo "version=$version" >> "$GITHUB_OUTPUT"
      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.24'
      - name: Extract showcase commit from librarian.yaml
        id: extract_commit
        shell: bash
        run: |
          version=$(go run github.com/googleapis/librarian/cmd/librarian@latest config get version)
          commit=$(go run "github.com/googleapis/librarian/cmd/librarian@${version}" config get sources.showcase.commit)
          echo "commit=$commit" >> "$GITHUB_OUTPUT"
      - name: Verify showcase version and commit match
        shell: bash
        run: |
          # 1. Query the remote repository for the specific version tag
          REMOTE_URL="https://github.com/googleapis/gapic-showcase.git"
          TAG_NAME="v${{ steps.extract_version.outputs.version }}"
          
          OUTPUT=$(git ls-remote "$REMOTE_URL" "refs/tags/$TAG_NAME")
          
          if [ -z "$OUTPUT" ]; then
            echo "Error: Tag $TAG_NAME not found on remote $REMOTE_URL"
            exit 1
          fi
          
          # 2. Grab the commit hash from the very last line of the output
          EXPECTED_COMMIT=$(echo "$OUTPUT" | tail -n 1 | awk '{print $1}')
          
          echo "Expected commit for tag $TAG_NAME: $EXPECTED_COMMIT"
          echo "Current librarian commit: ${{ steps.extract_commit.outputs.commit }}"
          
          # 3. Cross-reference with librarian.yaml
          if [ "${{ steps.extract_commit.outputs.commit }}" != "$EXPECTED_COMMIT" ]; then
            echo "Mismatch: librarian.yaml has commit '${{ steps.extract_commit.outputs.commit }}', but tag '$TAG_NAME' is at commit '$EXPECTED_COMMIT'"
            echo "MISMATCH=true" >> "$GITHUB_ENV"
            exit 2
          fi
          
          echo "Showcase version and commit are in sync!"
      - name: Create issue on mismatch
        if: failure() && env.MISMATCH == 'true'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh issue create \
            -R "${{ github.repository }}" \
            -t "Showcase Version Mismatch: librarian.yaml and pom.xml out of sync" \
            -b "The Showcase version in java-showcase/gapic-showcase/pom.xml and the commit in librarian.yaml do not match. Please update them to match. See logs: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
      - name: Create issue on workflow failure
        if: failure() && env.MISMATCH != 'true'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh issue create \
            -R "${{ github.repository }}" \
            -t "Showcase Version Check Workflow Failure" \
            -b "The Showcase Version Check workflow has failed due to an unexpected execution error. Please check the logs at ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }} for details."