update.yml

name: Update

on:
  workflow_dispatch:
    inputs:
      BRANCH:
        description: CPython branch to use 
        required: false
        type: string
        default: '3.11'
  pull_request:
    paths:
      - '.github/workflows/update.yml'
      - 'Makefile'
      - 'requirements.txt'
    branches:
      - '3.11'
  push:
    paths:
      - '.github/workflows/update.yml'
      - 'Makefile'
      - 'requirements.txt'
    branches:
      - '3.11'
      - '3.10'
      - '3.9'
      - '3.8'
      - '3.7'
  schedule:
    - cron: '0 23 * * *'

permissions:
      contents: read

jobs:
  # Download translations from Transifex, keep PO and Logs artifacts
  pull:
    name: Pull from Transifex
    runs-on: ubuntu-latest
    steps:
      - name: Check out ${{ github.repository }}
        uses: actions/checkout@v3
          
      - name: Get branch name on push or schedule
        if: |
          github.event_name == 'push' ||
          github.event_name == 'schedule'
        run: echo "BRANCH=${GITHUB_REF_NAME}" >>$GITHUB_ENV
      
      - name: Get branch name on pull
        if: github.event_name == 'pull_request'
        run: echo "BRANCH=${GITHUB_BASE_REF}" >>$GITHUB_ENV
      
      - name: Get branch name on manual run
        if: github.event_name == 'workflow_dispatch'
        run: echo "BRANCH=${{ github.event.inputs.BRANCH }}" >> $GITHUB_ENV
      
      - name: Check out CPython
        uses: actions/checkout@v3
        with:
          repository: python/cpython
          ref: ${{ env.BRANCH }}
          path: cpython
        
      - name: Set up Python 3
        uses: actions/setup-python@v4
        with:
          python-version: '3'
          cache: 'pip'
          cache-dependency-path: |
            'requirements.txt'
            'cpython/requirements.txt'
        
      - name: Install dependencies
        run: sudo apt update -y && sudo apt install gettext tree -y
      
      - name: Pull translations
        run: |
          make tx-config TX_CLI_DIR=/usr/local/bin
          if [ "${{ github.event_name }}" != 'pull_request' ]; then
            make pull -o tx-config TX_CLI_DIR=/usr/local/bin
          fi
        env:
          TX_TOKEN: ${{ secrets.TX_TOKEN }}
        
      - name: Upload artifact - po files
        uses: actions/upload-artifact@v3
        with:
          name: translations
          path: |
            *.po
            **/*.po
            .tx/

      - name: Upload artifact - log files
        if: always()
        uses: actions/upload-artifact@v3
        with:
          name: pull-logs
          path: |
            logs/*
            /tmp/*.log


  # Job for getting po files downloaded and storing this repository
  push:
    name: Push to repo
    needs: [pull]
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Check out ${{ github.repository }}
        uses: actions/checkout@v3

      - name: Download PO files
        uses: actions/download-artifact@v3
        with:
          name: translations
    
      # Exclude file with only changes in POT-Creation-Date
      - name: Changed files
        shell: bash
        run: |
          git diff -I'^"POT-Creation-Date: ' --numstat *.po **/*.po | cut -f3
          git ls-files -o --exclude-standard *.po **/*.po

      - name: Commit and push changes
        if: |
          github.repository == 'python/python-docs-pt-br' && 
          github.event_name != 'pull_request'
        run: |
          git config user.name github-actions
          git config user.email github-actions@github.com
          make push


  # Merge translations previously updated into older branches to make sure
  # older versions of Python Docs gets translated as well.
  # 'overwrite=true' means strings previously translated will get overwritten;
  # other branches will preserve translated strings, only filling in new
  # translations.
  merge:
    name: Merge into ${{ matrix.branch }}
    needs: [push]
    runs-on: ubuntu-latest
    permissions:
      contents: write
    strategy:
      fail-fast: false
      max-parallel: 3
      matrix:
        branch: ['3.10', '3.9', '3.8', '3.7', '3.6', '2.7']
        include:
          - branch: 3.10
            overwrite: true
    steps:
      - name: Get branch name on push or schedule
        if: |
          github.event_name == 'push' ||
          github.event_name == 'schedule'
        run: echo "CURRENT_BRANCH=${GITHUB_REF_NAME}" >>$GITHUB_ENV
      
      - name: Get branch name on pull
        if: github.event_name == 'pull_request'
        run: echo "CURRENT_BRANCH=${GITHUB_BASE_REF}" >>$GITHUB_ENV
      
      - name: Get branch name on manual run
        if: github.event_name == 'workflow_dispatch'
        run: echo "CURRENT_BRANCH=${{ github.event.inputs.BRANCH }}" >> $GITHUB_ENV
      
      - name: Check out source branch (${{ env.CURRENT_BRANCH }})
        uses: actions/checkout@v3
        with:
          path: ${{ env.CURRENT_BRANCH }}
          persist-credentials: false
      
      - name: Check out target branch (${{ matrix.branch }})
        uses: actions/checkout@v3
        with:
          ref: ${{ matrix.branch }}
          path: ${{ matrix.branch }}
      
      - name: Set up Python 3
        uses: actions/setup-python@v4
        with:
          python-version: '3'
          cache: 'pip'
          cache-dependency-path: "${{ env.CURRENT_BRANCH }}/requirements.txt"
      
      - name: Install dependencies
        run: |
          sudo apt update -y && sudo apt install gettext -y
          pip3 install pomerge powrap
      
      - name: Merge overwriting on stable release branch
        if: ${{ matrix.overwrite == true }}
        run: |
          pomerge --from ${{ env.CURRENT_BRANCH }}/**/*.po --to ${{ matrix.branch }}/**/*.po
      
      - name: Merge without overwriting on EOL or security-fix release branch
        if: ${{ matrix.overwrite != true }}
        run: |
          pomerge --no-overwrite --from ${{ env.CURRENT_BRANCH }}/**/*.po --to ${{ matrix.branch }}/**/*.po
      
      - name: Wrap catalog message files
        run: |
          powrap --modified -C ${{ matrix.branch }}
      
      #TODO:  Solve make push to work with merge scenario
      - name: Commit and push changes
        if: |
          github.repository == 'python/python-docs-pt-br' && 
          github.event_name != 'pull_request'
        run: |
          git config user.name github-actions
          git config user.email github-actions@github.com
          git diff -I'^"POT-Creation-Date: ' --numstat *.po **/*.po | cut -f3 | xargs -r git add
          git add $(git ls-files -o --exclude-standard *.po **/*.po) .tx/config
          git diff-index --quiet HEAD || git commit -m "Merge ${{ env.CURRENT_BRANCH }} into ${{ matrix.branch }}"
        working-directory: ${{ matrix.branch }}


  # Call the check.yml workflow after updating to run some tests
  call-build:
    name: call
    needs: pull
    if: github.event_name != 'pull_request'
    uses: ./.github/workflows/check.yml
    secrets: inherit