update-smithy-version.yml

name: Get latest smithy release version
on:
  workflow_dispatch: # on button click
  schedule:
    # Runs every wednesday at 10
    - cron:  '0 10 * * WED'

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

      - name: Fetch latest smithy version
        id: fetch-latest
        run: |
          echo "latestSmithy=$( \
            curl -sL https://api.github.com/repos/smithy-lang/smithy/releases/latest | \
            jq -r '.tag_name')" >> $GITHUB_OUTPUT

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

      - name: Check if the current version of Smithy should be updated
        id: update-check
        run: |
          echo update-required=$( \
          [ "${{ steps.get-current.outputs.smithyVersion }}" = "${{ steps.fetch-latest.outputs.latestSmithy }}" ] \
          && 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-version/${{ steps.fetch-latest.outputs.latestSmithy }}"
          git config --global user.email "github-aws-smithy-automation@amazon.com"
          git config --global user.name "Smithy Automation"

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

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