ci_update_requirements.yml

name: CI - Check for updates to `requirements.txt`

on:
  schedule:
    # At 7:30 every Monday (6:30 UTC)
    - cron: "30 6 * * 1"
  workflow_dispatch:

env:
  GIT_USER_NAME: "TEAM 4.0[bot]"
  GIT_USER_EMAIL: "Team4.0@SINTEF.no"

jobs:
  update-requirements:
    name: Update `requirements.txt`
    if: github.repository_owner == 'EMMC-ASBL'
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v6
      with:
        ref: 'master'
        fetch-depth: 0

    - name: Set up Python 3.10
      uses: actions/setup-python@v6
      with:
        python-version: "3.10"

    - name: Set up git config
      run: |
        git config --global user.name "${{ env.GIT_USER_NAME }}"
        git config --global user.email "${{ env.GIT_USER_EMAIL }}"

    - name: Install immediate requirements
      run: |
        python -m pip install -U pip
        pip install -U setuptools wheel
        pip install --no-cache-dir --upgrade-strategy=eager -U -r .github/utils/direct_requirements.txt

    - name: Run `pip freeze` and update current `requirements.txt`
      id: update_requirements
      run: |
        pip freeze > requirements_new.txt
        if [ "$(diff requirements.txt requirements_new.txt)" ]; then
          # There are updates !
          mv -f requirements_new.txt requirements.txt
          echo -e "requirements.txt has been updated. Diff:\n$(git diff requirements.txt)"
          echo "update_deps=true" >> $GITHUB_OUTPUT

          # Possibly also update the 'direct_requirements.txt' file for minimum versions.
          while IFS= read -r line_direct; do
            echo "line direct: ${line_direct}"
            if [[ "${line_direct}" =~ ^([a-zA-Z_-]+)\>=.*$ ]]; then
              package="${BASH_REMATCH[1]}"
              echo "package: ${package}"
              while IFS= read -r line_full; do
                echo "line full: ${line_full}"
                if [[ "${line_full}" =~ ^"${package}"==(.*)$ ]]; then
                  version="${BASH_REMATCH[1]}"
                  echo "version: ${version}"
                  sed -i "s|${package}>=.*|${package}>=${version}|" ".github/utils/direct_requirements.txt"
                  break
                fi
              done < requirements.txt
            fi
          done < .github/utils/direct_requirements.txt

          git add requirements.txt
          if [ -n "$(git status --porcelain .github/utils/direct_requirements.txt)" ]; then
            git add .github/utils/direct_requirements.txt
          fi
          git commit -m "Update \`requirements.txt\`"
        else
          # No changes
          echo "No changes found for requirements.txt."
          echo "update_deps=false" >> $GITHUB_OUTPUT
        fi

    - name: Fetch PR body
      if: steps.update_requirements.outputs.update_deps == 'true'
      id: pr_body
      run: |
        TEMPLATE_FILE=".github/utils/requirements_update_pr_body.txt"

        if [ -f "${TEMPLATE_FILE}" ]; then
          echo "Template file found: ${TEMPLATE_FILE}"
          CONTENT="$(cat "${TEMPLATE_FILE}")"
        else
          echo "Template file not found: ${TEMPLATE_FILE}"
          # Bail out
          exit 1
        fi

        echo "content<<EOF" >> $GITHUB_OUTPUT
        echo "${CONTENT}" >> $GITHUB_OUTPUT
        echo "EOF" >> $GITHUB_OUTPUT

    - name: Create PR
      if: steps.update_requirements.outputs.update_deps == 'true'
      id: cpr
      uses: peter-evans/create-pull-request@v8
      with:
        token: ${{ secrets.RELEASE_PAT }}
        commit-message: "Update `requirements.txt`"
        committer: "${{ env.GIT_USER_NAME }} <${{ env.GIT_USER_EMAIL }}>"
        author: "${{ env.GIT_USER_NAME }} <${{ env.GIT_USER_EMAIL }}>"
        branch: ci/update-requirements
        delete-branch: true
        title: "[Auto-generated] Update `requirements.txt`"
        body: ${{ steps.pr_body.outputs.content }}
        labels: CI/CD,skip-changelog

    - name: Information
      if: steps.update_requirements.outputs.update_deps == 'true'
      run: 'echo "${{ steps.cpr.outputs.pull-request-operation }} PR #${{ steps.cpr.outputs.pull-request-number }}: ${{ steps.cpr.outputs.pull-request-url }}"'