releaser.yaml

name: Release Tagging

on:
  pull_request:
    types: [opened, reopened, synchronize, closed]

permissions:
  contents: write  # Allows pushing changes and creating tags
  pull-requests: write  # Allows adding comments to pull requests
  issues: write

jobs:
  tag-discussion:
    if: github.event.action == 'synchronize'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Code
        uses: actions/checkout@v3

      - name: Calculate new versions
        id: calculate_versions
        run: |
          git fetch --tags
          LATEST_TAG=$(git tag --sort=-v:refname | grep -E '^[0-9]+\.[0-9]+\.[0-9]+$' | head -n 1)
          echo "latest tag: $LATEST_TAG"
          MAJOR=$(echo $LATEST_TAG | cut -d. -f1)
          MINOR=$(echo $LATEST_TAG | cut -d. -f2)
          PATCH=$(echo $LATEST_TAG | cut -d. -f3)


          NEW_PATCH_VERSION="$MAJOR.$MINOR.$((PATCH + 1))"
          NEW_MINOR_VERSION="$MAJOR.$((MINOR + 1)).0"
          NEW_MAJOR_VERSION="$((MAJOR + 1)).0.0"

          echo "patch_version=$NEW_PATCH_VERSION" >> $GITHUB_OUTPUT
          echo "minor_version=$NEW_MINOR_VERSION" >> $GITHUB_OUTPUT
          echo "major_version=$NEW_MAJOR_VERSION" >> $GITHUB_OUTPUT

      - name: Start Discussion for Tagging
        uses: peter-evans/create-or-update-comment@v2
        id: comment
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          issue-number: ${{ github.event.pull_request.number }}
          body: |
            ## Tagging Options
            Should a new tag be published when this PR is merged?
            - 👍 for **Patch** ${{ steps.calculate_versions.outputs.patch_version }} update
            - 🎉 for **Minor** ${{ steps.calculate_versions.outputs.minor_version }} update
            - 🚀 for **Major** ${{ steps.calculate_versions.outputs.major_version }} update

  determine-tag:
    if: github.event.action == 'closed' && github.event.pull_request.merged == true && github.ref == 'refs/heads/main'
    needs: tag-discussion
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Code
        uses: actions/checkout@v3

      - name: Determine the next version based on comments
        id: determine_version
        run: |
          LATEST_TAG=$(git tag --sort=-v:refname | grep -E '^[0-9]+\.[0-9]+\.[0-9]+$' | head -n 1)
          MAJOR=$(echo $LATEST_TAG | cut -d. -f1)
          MINOR=$(echo $LATEST_TAG | cut -d. -f2)
          PATCH=$(echo $LATEST_TAG | cut -d. -f3)

          # Define allowed users
          ALLOWED_USERS=$(cat MAINTAINERS.txt | tr '\n' ' ')
          echo "Maintainers list: $ALLOWED_USERS"

          # Fetch reactions and filter by allowed users
          REACTION=$(gh api graphql -f query='
            query {
              repository(owner:"${{ github.repository_owner }}", name:"${{ github.event.repository.name }}") {
                pullRequest(number: ${{ github.event.pull_request.number }}) {
                  comments(last: 100) {
                    nodes {
                      body
                      id
                      reactions(last: 100) {
                        nodes {
                          content
                          user {
                            login
                          }
                        }
                      }
                    }
                  }
                }
              }
            }' | jq -r '
              .data.repository.pullRequest.comments.nodes[] |
              select(.body | contains("## Tagging Options")) |
              .reactions.nodes[] |
              select(.user.login | inside(["'${ALLOWED_USERS[*]}'"])) |
              .content'
          )


          # Determine the new tag version based on the allowed reactions
          if [[ "$REACTION" == *"ROCKET"* ]]; then
            NEW_TAG="$((MAJOR + 1)).0.0"
          elif [[ "$REACTION" == *"TADA"* ]]; then
            NEW_TAG="$MAJOR.$((MINOR + 1)).0"
          else
            NEW_TAG="$MAJOR.$MINOR.$((PATCH + 1))"
          fi

          echo "new_version=$NEW_TAG" >> $GITHUB_OUTPUT

      - name: Update deno.json Version
        run: |
          jq --arg new_version "${{ steps.determine_version.outputs.new_version }}" '.version = $new_version' deno.json > tmp.$$.json && mv tmp.$$.json deno.json
          git config user.name "decobot"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add deno.json
          git commit -m "Update version to ${{ steps.determine_version.outputs.new_version }}"
          git push origin main

      - name: Create and Push Tag
        run: |
          git tag ${{ steps.determine_version.outputs.new_version }}
          git push origin ${{ steps.determine_version.outputs.new_version }}