format.yml

name: Auto-format code

on:
  pull_request_target:
    types: [opened, synchronize, reopened]
    branches:
      - main

jobs:
  auto_format:
    if: >
      (
        github.event.pull_request.user.login == 'dependabot[bot]' ||
        contains(
          fromJSON('["OWNER", "MEMBER", "COLLABORATOR"]'),
          github.event.pull_request.author_association
        )
      ) &&
      github.repository == 'hakatashi/solid-start-firebase-template'

    permissions:
      contents: write

    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v6
        with:
          ref: ${{ github.head_ref }}
          token: ${{ secrets.USER_GITHUB_TOKEN }}

      - name: Setup Node.js
        uses: actions/setup-node@v6
        with:
          node-version: 22
          cache: "npm"

      - name: Setup Biome
        uses: biomejs/setup-biome@v2

      - name: Check if formatting is needed
        id: format-check
        run: |
          # Run biome format and check if any files were changed
          biome format --write .
          if git diff --quiet; then
            echo "formatting_needed=false" >> $GITHUB_OUTPUT
          else
            echo "formatting_needed=true" >> $GITHUB_OUTPUT
          fi

      - name: Check last commit message
        id: commit-check
        if: steps.format-check.outputs.formatting_needed == 'true'
        run: |
          LAST_COMMIT_MSG=$(git log -1 --pretty=format:'%s')
          if [ "$LAST_COMMIT_MSG" = "Auto-format code with biome" ]; then
            echo "should_commit=false" >> $GITHUB_OUTPUT
            echo "Last commit was already an auto-format commit. Skipping to prevent infinite loop."
          else
            echo "should_commit=true" >> $GITHUB_OUTPUT
          fi

      - name: Commit and push formatting changes
        if: steps.format-check.outputs.formatting_needed == 'true' && steps.commit-check.outputs.should_commit == 'true'
        run: |
          git config --local user.email "hakatasiloving@gmail.com"
          git config --local user.name "Koki Takahashi"
          git add .
          git commit -m "Auto-format code with biome"
          git push

      - name: Fail if formatting was needed
        if: steps.format-check.outputs.formatting_needed == 'true' && steps.commit-check.outputs.should_commit == 'true'
        run: |
          echo "Code was not properly formatted. Formatting has been applied and committed."
          exit 1