name: Internationalization check

on: [push, pull_request]

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v1
    - name: Set up Python
      uses: actions/setup-python@v1
      with:
        python-version: 3.8
    - name: Install dependencies
      run: |
        pip install --upgrade pip pipenv
        pipenv sync -d
    - name: Check i18n
      run: |
        pipenv run python setup.py extract_messages --output-file=/tmp/kosmorro-messages.pot > /dev/null
        n=$(diff -y --suppress-common-lines kosmorrolib/locales/messages.pot /tmp/kosmorro-messages.pot | grep -v -E '^"POT-Creation-Date: ' | wc -l)

        if [ "$n" -ne "0" ]; then
          echo "❌ The messages file is not up-to-date!"
          echo "   Please run the following command to fix this:"
          echo
          echo "   pipenv run python setup.py extract_messages --output-file=kosmorrolib/locales/messages.pot"
          exit 1
        fi

        echo "✔ Messages file up-to-date."