release.yml

# Release on version bump
# When dev is pushed with a package.json version change, mirror dev -> main,
# tag the release, and publish a GitHub Release with a downloadable zip.
name: Release

on:
  push:
    branches:
      - dev

jobs:
  release:
    # Only run in the canonical repo. Template/forked copies inherit this file
    # but this guard makes every job a no-op there — no mirror, tags, or releases.
    if: github.repository == 'gallop-software/typing-game'
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Checkout dev branch
        uses: actions/checkout@v4
        with:
          ref: dev
          fetch-depth: 0

      - name: Check for version bump
        id: version-check
        run: |
          CURRENT_VERSION=$(jq -r .version package.json)
          echo "current_version=$CURRENT_VERSION" >> $GITHUB_OUTPUT

          # Get previous version from git history (commit before the current version bump)
          PREV_VERSION=$(git log --format=%H -1 --skip=1 -G'"version":' -- package.json | xargs -I{} git show {}:package.json | jq -r .version)
          echo "prev_version=$PREV_VERSION" >> $GITHUB_OUTPUT

          if [ "$CURRENT_VERSION" == "$PREV_VERSION" ] || [ -z "$PREV_VERSION" ]; then
            echo "No version bump detected (current: $CURRENT_VERSION, prev: $PREV_VERSION)"
            echo "should_release=false" >> $GITHUB_OUTPUT
          else
            echo "Version bump detected: $PREV_VERSION -> $CURRENT_VERSION"
            echo "should_release=true" >> $GITHUB_OUTPUT
          fi

      - name: Get commit messages since last version bump
        if: steps.version-check.outputs.should_release == 'true'
        id: commits
        run: |
          # Find the previous version bump commit
          PREV_BUMP=$(git log --format=%H -2 -G'"version":' -- package.json | tail -1)
          if [ -z "$PREV_BUMP" ]; then
            COMMITS=$(git log --oneline --no-decorate | head -20)
          else
            COMMITS=$(git log --oneline --no-decorate $PREV_BUMP..HEAD)
          fi

          echo "commits<<EOF" >> $GITHUB_OUTPUT
          echo "$COMMITS" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

      - name: Update main to match dev
        if: steps.version-check.outputs.should_release == 'true'
        run: git push --force origin HEAD:main

      - name: Create tag
        if: steps.version-check.outputs.should_release == 'true'
        run: |
          VERSION="v${{ steps.version-check.outputs.current_version }}"
          git tag -f "$VERSION"
          git push --force origin "$VERSION"

      - name: Create GitHub Release with zip
        if: steps.version-check.outputs.should_release == 'true'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          RELEASE_NOTES: ${{ steps.commits.outputs.commits }}
        run: |
          VERSION="v${{ steps.version-check.outputs.current_version }}"
          REPO_NAME="typing-game"

          # Build a zip that extracts to a top-level typing-game/ folder
          mkdir -p "$REPO_NAME-folder/$REPO_NAME"
          shopt -s dotglob nullglob
          rsync -a --exclude='.git' --exclude='.github' --exclude='node_modules' --exclude="$REPO_NAME-folder" ./ "$REPO_NAME-folder/$REPO_NAME/"
          shopt -u dotglob nullglob
          (cd "$REPO_NAME-folder" && zip -r "../$REPO_NAME.zip" "$REPO_NAME")

          # Delete existing release if present (for retries)
          gh release delete "$VERSION" --yes 2>/dev/null || true

          echo "$RELEASE_NOTES" > release-notes.txt

          gh release create "$VERSION" \
            --title "Release $VERSION" \
            --notes-file release-notes.txt \
            "$REPO_NAME.zip"