lint-i18n.yml

name: Lint I18N

on:
  push:
    paths:
      - '**.js'
      - '**/package.json'
      - 'package-lock.json'
      - 'web-stories.php'
      - 'includes/**.php'
      - '.github/workflows/lint-i18n.yml'
    branches:
      - main
  pull_request:
    paths:
      - '**.js'
      - '**/package.json'
      - 'package-lock.json'
      - 'web-stories.php'
      - 'includes/**.php'
      - '.github/workflows/lint-i18n.yml'

# Cancels all previous workflow runs for pull requests that have not completed.
concurrency:
  # The concurrency group contains the workflow name and the branch name for pull requests
  # or the commit hash for any other events.
  group: ${{ github.workflow }}-${{ github.event_name == 'pull_request' && github.head_ref || github.sha }}
  cancel-in-progress: true

jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Install WP-CLI
        run: |
          curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar
          chmod +x wp-cli.phar
          mkdir -p bin
          mv wp-cli.phar bin/wp
          echo "${PWD}/bin" >> $GITHUB_PATH

      - name: WP-CLI Info
        run: wp cli info

      - name: Install latest version of i18n-command
        run: wp package install wp-cli/i18n-command:dev-main

      - name: List packages
        run: wp package list

      - name: Setup Node
        uses: actions/setup-node@v3
        with:
          node-version-file: '.nvmrc'
          cache: npm

      - name: Setup PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: '8.0'
          coverage: none
          tools: composer

      - name: Install dependencies
        run: |
          npm ci
        env:
          PUPPETEER_SKIP_CHROMIUM_DOWNLOAD: true

      - name: Install PHP dependencies
        uses: 'ramsey/composer-install@v1'
        with:
          composer-options: '--prefer-dist --no-progress --no-interaction'

      - name: Build plugin
        run: npm run build:js

      - name: Bundle regular version
        run: npm run workflow:build-plugin

      # Check if as many strings as expected were found.
      # Fail job if `wp i18n make-pot` returns any warnings.
      # Some false positive warnings are removed due to a bug in the string extraction.
      # That's why this step is unfortunately a bit more complex.
      # See https://github.com/wp-cli/i18n-command/issues/154
      - name: Generate POT file
        run: |
          OUTPUT=$((wp i18n make-pot build/web-stories build/web-stories.pot) 2>&1 >/dev/null)

          HAS_ERROR=false

          EXPECTED_NUMBER_OF_STRINGS=1000
          NUMBER_OF_FOUND_STRINGS=$(grep -o msgstr build/web-stories.pot | wc -l | xargs)

          if (( "$NUMBER_OF_FOUND_STRINGS" < "$EXPECTED_NUMBER_OF_STRINGS" )); then
          HAS_ERROR=true
            echo "String extraction found only $NUMBER_OF_FOUND_STRINGS translatable strings. Expected at least $EXPECTED_NUMBER_OF_STRINGS."
          fi

          IFS=$'\n'
          declare -a WARNINGS=($OUTPUT)
          unset IFS

          for WARNING in "${WARNINGS[@]}"; do
            # Filter false positives.
            if [[ $WARNING == *"translator comment"* ]] && [[ $WARNING != *"%s"* ]]; then
              continue
            fi

            HAS_ERROR=true

          	echo $WARNING
          done

          if [[ "$HAS_ERROR" = true ]]; then
            exit 1
          fi