ComfyUI_frontend/.github/workflows/ci-lint-format.yaml

name: "CI: Lint Format"
description: "Linting and code formatting validation for pull requests"

on:
  pull_request:
    branches-ignore: [wip/*, draft/*, temp/*]

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

permissions:
  contents: write
  pull-requests: write

jobs:
  lint-and-format:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout PR
        uses: actions/checkout@v5
        with:
          ref: ${{ !github.event.pull_request.head.repo.fork && github.head_ref || github.ref }}

      - name: Install pnpm
        uses: pnpm/action-setup@v4
        with:
          version: 10

      - name: Use Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 'lts/*'
          cache: 'pnpm'

      - name: Cache tool outputs
        uses: actions/cache@v4
        with:
          path: |
            .cache
            .eslintcache
            tsconfig.tsbuildinfo
            .prettierCache
            .knip-cache
          key: lint-format-cache-${{ runner.os }}-${{ hashFiles('**/pnpm-lock.yaml') }}-${{ hashFiles('src/**/*.{ts,vue,js,mts}', '*.config.*', '.eslintrc.*', '.prettierrc.*', 'tsconfig.json') }}
          restore-keys: |
            lint-format-cache-${{ runner.os }}-${{ hashFiles('**/pnpm-lock.yaml') }}-
            lint-format-cache-${{ runner.os }}-
            ci-tools-cache-${{ runner.os }}-

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Run ESLint with auto-fix
        run: pnpm lint:fix

      - name: Run Prettier with auto-format
        run: pnpm format

      - name: Check for changes
        id: verify-changed-files
        run: |
          if [ -n "$(git status --porcelain)" ]; then
            echo "changed=true" >> $GITHUB_OUTPUT
          else
            echo "changed=false" >> $GITHUB_OUTPUT  
          fi

      - name: Commit changes
        if: steps.verify-changed-files.outputs.changed == 'true' && github.event.pull_request.head.repo.full_name == github.repository
        run: |
          git config --local user.email "action@github.com"
          git config --local user.name "GitHub Action"
          git add .
          git commit -m "[automated] Apply ESLint and Prettier fixes"
          git push

      - name: Final validation
        run: |
          pnpm lint
          pnpm format:check
          pnpm knip

      - name: Comment on PR about auto-fix
        if: steps.verify-changed-files.outputs.changed == 'true' && github.event.pull_request.head.repo.full_name == github.repository
        continue-on-error: true
        uses: actions/github-script@v7
        with:
          script: |
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: '## 🔧 Auto-fixes Applied\n\nThis PR has been automatically updated to fix linting and formatting issues.\n\n**⚠️ Important**: Your local branch is now behind. Run `git pull` before making additional changes to avoid conflicts.\n\n### Changes made:\n- ESLint auto-fixes\n- Prettier formatting'
            })

      - name: Comment on PR about manual fix needed
        if: steps.verify-changed-files.outputs.changed == 'true' && github.event.pull_request.head.repo.full_name != github.repository
        continue-on-error: true
        uses: actions/github-script@v7
        with:
          script: |
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: '## ⚠️ Linting/Formatting Issues Found\n\nThis PR has linting or formatting issues that need to be fixed.\n\n**Since this PR is from a fork, auto-fix cannot be applied automatically.**\n\n### Option 1: Set up pre-commit hooks (recommended)\nRun this once to automatically format code on every commit:\n```bash\npnpm prepare\n```\n\n### Option 2: Fix manually\nRun these commands and push the changes:\n```bash\npnpm lint:fix\npnpm format\n```\n\nSee [CONTRIBUTING.md](https://github.com/Comfy-Org/ComfyUI_frontend/blob/main/CONTRIBUTING.md#git-pre-commit-hooks) for more details.'
            })