auto-tag.yml

name: CI + Auto Tag

on:
  push:
    branches: [main]

jobs:
  ci-and-tag:
    name: Test, Build & Tag
    runs-on: ubuntu-latest
    if: "!contains(github.event.head_commit.message, '[skip ci]')"
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'

      - name: Install dependencies
        run: npm install --include=dev

      - name: Type check
        run: npx tsc --noEmit

      - name: Test
        run: npm test

      - name: Build
        run: npm run build

      - name: Tag HEAD with next patch version
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

          # Determine next version from latest git tag (fallback to package.json)
          LATEST=$(git tag -l 'v*' --sort=-version:refname | head -1)
          if [ -z "$LATEST" ]; then
            LATEST="v$(node -p "require('./package.json').version")"
          fi
          CURRENT="${LATEST#v}"
          IFS='.' read -r MAJOR MINOR PATCH <<< "$CURRENT"
          NEW_VERSION="$MAJOR.$MINOR.$((PATCH + 1))"

          git tag "v$NEW_VERSION"
          git push origin "v$NEW_VERSION"
          echo "Tagged HEAD as v$NEW_VERSION"