create-condalock-file.yml

name: Conda lock file creation

on:
  # Trigger on push on main or other branch for testing
  # NOTE that push: main will create the file very often
  # and hence lots of automated PRs
  # push:
  #   branches:
  #     - main
  schedule:
    - cron: '0 4 */10 * *'

# Required shell entrypoint to have properly configured bash shell
defaults:
  run:
    shell: bash -l {0}

jobs:
  create-lock-file:
    name: Create conda lock file for latest Python
    runs-on: 'ubuntu-latest'
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - uses: conda-incubator/setup-miniconda@v3
        with:
          auto-update-conda: true
          activate-environment: esmvaltool-fromlock
          python-version: "3.12"
          miniforge-version: "latest"
          use-mamba: true
      - name: Show conda config
        run: |
          conda update -n base -c conda-forge conda
          conda --version
          # setup-miniconda@v3 installs an old conda and mamba
          # forcing a modern mamba updates both mamba and conda
          # unpin mamba after conda-lock=3 release
          # see github.com/ESMValGroup/ESMValTool/issues/3782
          conda install -c conda-forge "mamba>=1.4.8,<2"
          conda config --show-sources
          conda config --show
          conda --version
          mamba --version
      - name: Python info
        run: |
          which python
          python --version
      - name: Install conda-lock
        run: mamba install -y -c conda-forge conda-lock
      - name: Check version of conda-lock
        run: conda-lock --version
      - name: Create conda lock file for linux-64
        run: conda-lock lock --platform linux-64 -f environment.yml --mamba --kind explicit
      - name: Show conda version again
        run: conda --version
      - name: Show Python exec and version again
        run: |
          which python
          python -V
      - name: Create conda-lock environment
        run: conda create --name esmvaltool-fromlock --file conda-linux-64.lock
      - name: Install pip
        run: mamba install -y pip
      - name: Check Python and pip versions post pip-install
        run: |
          which python
          pip --version
      - name: Install ESMValTool
        run: pip install -e .[develop]
      - name: Check ESMValTool version
        run: esmvaltool --help
      - name: Check ESMValTool help
        run: esmvaltool version
      - name: Run flake8
        run: flake8
      - name: Run tests
        run: pytest -n 2 -m "not installation"
      # Automated PR
      # see https://github.com/marketplace/actions/create-pull-request
      - name: Create Automated PR if conda lock file has changed
        uses: peter-evans/create-pull-request@v3
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: Updating Linux condalock file
          author: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
          signoff: false
          branch: condalock-update
          delete-branch: true
          title: '[Condalock] Update Linux condalock file'
          body: |
            Update condalock file
            Automatic Pull Request.
          labels: |
            testing
            condalock
            automatedPR
          assignees: valeriupredoi
          reviewers: valeriupredoi
          draft: false