update_dependencies.yml

name: Update depencies in poetry lockfile

on:
  schedule:
    - cron:  '0 1 * * 1'
  workflow_dispatch:
  push:
    branches: main
    paths:
      - .github/workflows/update_dependencies.yml

jobs:
  update_dependencies:
    runs-on: ubuntu-latest
    steps:
      # Check out repo and set up Python
      - uses: actions/checkout@v3
        with:
          lfs: true

# see https://stackoverflow.com/questions/57612428/cloning-private-github-repository-within-organisation-in-actions
      - name: checkout test data
        run: |
          eval `ssh-agent -s`
          ssh-add - <<< '${{ secrets.TEST_DATA_ACCESS_KEY }}'
          git submodule sync --recursive
          git submodule update --init --recursive


# see https://github.com/peter-evans/create-pull-request/blob/main/docs/concepts-guidelines.md
      - uses: tibdex/github-app-token@v1
        id: generate-token
        with:
          app_id: ${{ secrets.APP_ID }}
          private_key: ${{ secrets.APP_PRIVATE_KEY }}

      # Use cached python and dependencies, install poetry
      - name: "Setup Python, Poetry and Dependencies"
        uses: packetcoders/action-setup-cache-python-poetry@main
        with:
          python-version: 3.8
          poetry-version: 1.2.2

      # update poetry lockfile
      - name: "Update poetry lock file"
        id: update
        run: |
          poetry self update
          exec 5>&1
          UPDATE_OUTPUT=$(poetry update|tee >(cat - >&5))
          echo "UPDATE_OUTPUT<<EOF" >> $GITHUB_OUTPUT
          echo "$UPDATE_OUTPUT" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

      - name: Obtain git status
        id: status
        run: |
          exec 5>&1
          STATUS=$(git status|tee >(cat - >&5))
          echo "STATUS<<EOF" >> $GITHUB_OUTPUT
          echo "$STATUS" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

      # create pull request if necessary
      - name: "Create Pull Request"
        uses: peter-evans/create-pull-request@v5
        if: ${{ contains(steps.status.outputs.STATUS, 'poetry.lock')}}
        with:
          token: ${{ steps.generate-token.outputs.token }}
          commit-message: Update dependencies
          title: "Update dependencies"
          body: |
            Dependency updates using Poetry:
            ${{ steps.update.outputs.UPDATE_OUTPUT }}