poetry-export_dependencies.yml

name: Poetry export requirements.txt
on:
  push:
    branches:
      - 'main'  # Trigger only on pull requests made to the main branch
    paths:
      - 'requirements.txt'
      - 'pyproject.toml'
      - 'poetry.lock'

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:
 
jobs:
  poetry-export_dependencies:
    strategy:
      fail-fast: false
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: 3.12
      - name: Install poetry
        uses: abatilo/actions-poetry@v4
        with:
          poetry-version: 'latest'
      - name: Install the poetry-plugin-export
        run: poetry self add poetry-plugin-export
      - name: Update poetry lock file
        run: poetry lock
      - name: Export the project dependencies to requirements.txt
        run: |
          poetry export -f requirements.txt --output requirements.txt
      - name: Get branch name
        shell: bash
        run: echo "BRANCH_NAME=${GITHUB_REF#refs/heads/}" >> $GITHUB_ENV
      - name: Fetch main branch
        shell: bash
        run: git fetch origin main
      - name: Check for changes
        id: check_changes
        shell: bash
        run: |
          # Use git diff to check actual content changes with the remotte
          if ! git diff origin/main --quiet -- requirements.txt poetry.lock; then
            echo "changes=true" >> $GITHUB_OUTPUT
          else
            echo "changes=false" >> $GITHUB_OUTPUT
          fi
      - name: Configure Git
        run: |
          git config --local user.email "github-actions[bot]@users.noreply.github.com"
          git config --local user.name "github-actions[bot]"
      - name: Commit and push if changed
        if: steps.check_changes.outputs.changes == 'true'
        run: |
          # Stage all changes before pulling
          git add requirements.txt poetry.lock

          # Check if there are staged changes
          if git diff --cached --quiet; then
            echo "No changes to commit."
          else
            git commit -m "chore: update requirements.txt and poetry.lock [skip ci]"
          fi
          
          # Pull with rebase to get latest changes
          git pull --rebase origin ${{ env.BRANCH_NAME }}
          
          # Push with retry logic
          max_attempts=3
          attempt=1
          while [ $attempt -le $max_attempts ]; do
            if git push origin ${{ env.BRANCH_NAME }}; then
              break
            else
              if [ $attempt -eq $max_attempts ]; then
                echo "Failed to push after $max_attempts attempts"
                exit 1
              fi
              echo "Push failed, attempt $attempt of $max_attempts. Pulling and retrying..."
              git pull --rebase origin ${{ env.BRANCH_NAME }}
              attempt=$((attempt + 1))
            fi
          done
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}