release.yml

name: Weekly Release

on:
  workflow_dispatch:
  schedule:
    # At 00:00 on Monday
    - cron: "0 0 * * 1"

jobs:
  bump-version-and-release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
        with:
          ref: main
          fetch-depth: 0 # Fetch all history for all branches and tags
          # Requires "Read and Write access to code" permission
          token: ${{ secrets.RELEASE_ACTION_ACCESS_TOKEN }}

      - name: Check for changes since last tag
        id: check_changes
        run: |
          LATEST_TAG=$(git tag --merged=main --sort=-committerdate | head -n 1)
          CHANGES=$(git log $LATEST_TAG..HEAD --oneline)
          if [[ -z "$CHANGES" ]]; then
            echo "No changes since the last tag."
          else
            echo "Changes detected since the last tag."
            echo "has_changes=true" >> $GITHUB_OUTPUT
          fi

      - name: Create Tag
        if: ${{ steps.check_changes.outputs.has_changes }}
        id: tag_version
        run: |
          # Extracts the latest version tag, bumps the minor version
          LATEST_VERSION=$(git tag --sort=-authordate --merged=main | head --lines 1)
          if ! [[ "$LATEST_VERSION" =~ ^v[0-9]+\.[0-9]+\..* ]]; then
            echo "Invalid tag format, cannot bump version of: $LATEST_VERSION"
            exit 1
          fi
          MAJOR=$(echo $LATEST_VERSION | cut -d. -f1)
          MINOR=$(echo $LATEST_VERSION | cut -d. -f2)
          NEW_MINOR=$((MINOR+1))
          NEW_TAG="${MAJOR}.${NEW_MINOR}.0"
          echo ::set-output name=tag::$NEW_TAG
          git tag $NEW_TAG
          git push origin --tags

      - name: "Create release"
        if: ${{ steps.check_changes.outputs.has_changes }}
        uses: "actions/github-script@v6"
        with:
          github-token: "${{ secrets.GITHUB_TOKEN }}"
          script: |
            try {
              const response = await github.rest.repos.createRelease({
                draft: false,
                generate_release_notes: true,
                name: "Weekly Release ${{ steps.tag_version.outputs.tag }}",
                owner: context.repo.owner,
                prerelease: false,
                repo: context.repo.repo,
                tag_name: "${{ steps.tag_version.outputs.tag }}",
              });

              core.exportVariable('RELEASE_ID', response.data.id);
              core.exportVariable('RELEASE_UPLOAD_URL', response.data.upload_url);
            } catch (error) {
              core.setFailed(error.message);
            }