update-conda-lockfile.yml

---
name: update-conda-lockfile

on:
  workflow_dispatch:
  schedule:
    - cron: "0 9 * * 1" # Mondays at 9AM UTC

# What branch does this action run on?
# - workflow_dispatch: Whatever branch it was run against.
# - schedule: Always runs on main

jobs:
  update-conda-lockfile:
    runs-on: ubuntu-latest
    if: ${{ (github.event_name == 'schedule' && github.repository == 'catalyst-cooperative/pudl') || (github.event_name == 'workflow_dispatch') }}
    defaults:
      run:
        shell: bash -l {0}
    steps:
      - name: Get today's date
        run: |
          echo "TODAY=$(date +%Y-%m-%d)" >> $GITHUB_ENV
      - uses: actions/checkout@v4
        with:
          token: ${{ secrets.PUDL_BOT_PAT }}
      - name: Install Micromamba
        uses: mamba-org/setup-micromamba@v2
        with:
          environment-name: conda-lock
          create-args: >-
            python=3.12
            conda-lock>=2.5.7
            prettier
      - name: Run conda-lock to recreate lockfile from scratch
        run: |
          make conda-clean
          make conda-lock.yml
      - name: Make a PR to merge updated conda lockfiles
        # If we are relocking dependencies on a schedule or workflow_dispatch, we need
        # to make our own PR to check whether the updated environment actually solves
        # and the tests pass.
        if: ${{ (github.event_name == 'schedule' && github.repository == 'catalyst-cooperative/pudl') || (github.event_name == 'workflow_dispatch') }}
        uses: peter-evans/create-pull-request@v7
        with:
          token: ${{ secrets.PUDL_BOT_PAT }}
          commit-message: "Update conda-lock.yml and rendered conda environment files."
          title: Update conda lockfile for week of ${{ env.TODAY }}
          body: >
            This pull request relocks the dependencies with conda-lock.
            It is triggered by [update-conda-lockfile](https://github.com/catalyst-cooperative/pudl/blob/main/.github/workflows/update-conda-lockfile.yml).
          labels: dependencies, conda-lock
          reviewers: zaneselvans
          branch: update-conda-lockfile
          base: ${{ github.ref_name }}
          delete-branch: true