update-smithy-gradle-plugin-version.yml

name: Get latest smithy gradle plugin version
on:
  workflow_dispatch: # on button click
  # Uncomment once permissions to create PRs has been added.
  schedule:
    # Runs every wednesday at 11
    - cron:  '0 11 * * WED'

jobs:
  get-version:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Fetch latest smithy-gradle-plugin version
        id: fetch-latest
        run: |
          echo "latestSmithyGradle=$( \
           curl -sL https://api.github.com/repos/smithy-lang/smithy-gradle-plugin/tags | \
           jq -r '.[0].name')" >> $GITHUB_OUTPUT

      - name: Get current version
        id: get-current
        run: |
          cat gradle.properties >> $GITHUB_OUTPUT

      - name: Check if the current version of smithy-gradle-plugin should be updated
        id: update-check
        run: |
          echo update-required=$( \
          [ "${{ steps.get-current.outputs.smithyGradleVersion }}" = "${{ steps.fetch-latest.outputs.latestSmithyGradle }}" ] \
          && echo "false" || echo "true") >> $GITHUB_OUTPUT

      - name: Set up new git branch for version bump
        id: git-setup
        if: steps.update-check.outputs.update-required == 'true'
        run: |
          git checkout -b "automation/bump-smithy-gradle-version/${{ steps.fetch-latest.outputs.latestSmithyGradle }}"
          git config --global user.email "github-aws-smithy-automation@amazon.com"
          git config --global user.name "Smithy Automation"

      - name: Find and replace gradle version in properties files
        id: replace-current-version-properties
        if: steps.update-check.outputs.update-required == 'true'
        run: |
          find . -type f -name 'gradle.properties' \
          -exec sed -i "s|smithyGradleVersion=${{ steps.get-current.outputs.smithyGradleVersion }}|smithyGradleVersion=${{ steps.fetch-latest.outputs.latestSmithyGradle }}|g" {} \;

      - name: Create PR
        if: steps.update-check.outputs.update-required == 'true'
        run: |
          git add .
          git commit -m 'Update smithy-gradle-plugin Version'
          git push --set-upstream origin "automation/bump-smithy-gradle-version/${{ steps.fetch-latest.outputs.latestSmithyGradle }}"
          gh pr create \
            --title "[Automation] smithy-gradle-plugin Version Bump - \`${{ steps.fetch-latest.outputs.latestSmithyGradle }}\`" \
            --body "Automated pull request to bump smithy-gradle-plugin version from ${{ steps.get-current.outputs.smithyGradleVersion }} to ${{ steps.fetch-latest.outputs.latestSmithyGradle }}" \
            --base main
          echo "PR Created for version bump to ${{ steps.fetch-latest.outputs.latestSmithyGradle }}"
        env:
          GITHUB_TOKEN: ${{ secrets.PR_TOKEN }}