comment.yml

name: Comment Command
on:
  issue_comment:
    types:
      - created
      - edited
env:
  RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
  SPACK_YAML_MODEL_YQ: .spack.specs[0]
  SPACK_YAML_MODEL_PROJECTION_YQ: .spack.modules.default.tcl.projections.access-om3
jobs:
  bump-version:
    name: Bump spack.yaml
    if: github.event.issue.pull_request && startsWith(github.event.comment.body, '!bump')
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
    env:
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          fetch-tags: true
          token: ${{ secrets.GH_COMMIT_CHECK_TOKEN }}

      - name: Setup
        id: setup
        # outputs:
        #   original-version: The version contained within the spack.yaml
        #   version: The version that will be bumped (could be latest tag instead of original-version)
        #   bump: The bump type (major, minor or current as specified in the bump-version action)
        run: |
          # Get the version of access-om3 from the spack.yaml in the PR the comment was written in
          gh pr checkout ${{ github.event.issue.number }}
          original_version=$(yq e '${{ env.SPACK_YAML_MODEL_YQ }} | split("@git.") | .[1]' spack.yaml)
          echo "original-version=${original_version}" >> $GITHUB_OUTPUT

          # Validate the comment
          if [[ "${{ contains(github.event.comment.body, 'major') }}" == "true" ]]; then
            # Compare the current date (year-month) with the latest git tag (year-month)
            # to determine the next valid tag. We do this because especially feature-rich
            # months might increment the date part beyond the current date.

            d="$(date +%Y-%m)-01"
            d_s=$(date --date "$d" +%s)

            latest_tag=$(git describe --tags --abbrev=0 | tr '.' '-')
            tag_date=${latest_tag%-*}-01
            tag_date_s=$(date --date "$tag_date" +%s)

            echo "Comparing current date ${d} with ${tag_date} (tag looks like ${latest_tag})"

            if (( d_s <= tag_date_s )); then
              echo "version=${tag_date}" >> $GITHUB_OUTPUT
              echo "bump=major" >> $GITHUB_OUTPUT
            else
              echo "version=${original_version}" >> $GITHUB_OUTPUT
              echo "bump=current" >> $GITHUB_OUTPUT
            fi
          elif [[ "${{ contains(github.event.comment.body, 'minor')}}" == "true" ]]; then
            echo "version=${original_version}" >> $GITHUB_OUTPUT
            echo "bump=minor" >> $GITHUB_OUTPUT
          else
            echo "::warning::Usage: `!bump [major|minor]`, got `${{ github.event.comment.body }}`"
            exit 1
          fi

      - name: Bump Version
        id: bump
        uses: access-nri/actions/.github/actions/bump-version@main
        with:
          version: ${{ steps.setup.outputs.version }}
          versioning-scheme: calver-minor
          bump-type: ${{ steps.setup.outputs.bump }}

      - name: Update, Commit and Push the Bump
        run: |
          git config user.name ${{ vars.GH_ACTIONS_BOT_GIT_USER_NAME }}
          git config user.email ${{ vars.GH_ACTIONS_BOT_GIT_USER_EMAIL }}

          yq -i '${{ env.SPACK_YAML_MODEL_YQ }} = "access-om3@git.${{ steps.bump.outputs.after }}"' spack.yaml
          yq -i '${{ env.SPACK_YAML_MODEL_PROJECTION_YQ }} = "{name}/${{ steps.bump.outputs.after }}"' spack.yaml
          git add spack.yaml
          git commit -m "spack.yaml: Updated access-om3 package version from ${{ steps.setup.outputs.original-version }} to ${{ steps.bump.outputs.after }}"
          git push

      - name: Success Notifier
        uses: access-nri/actions/.github/actions/pr-comment@main
        with:
          comment: |
            :white_check_mark: Version bumped from `${{ steps.setup.outputs.original-version }}` to `${{ steps.bump.outputs.after }}` :white_check_mark:

      - name: Failure Notifier
        if: failure()
        uses: access-nri/actions/.github/actions/pr-comment@main
        with:
          comment: |
            :x: Failed to bump version or commit changes, see ${{ env.RUN_URL }} :x: