autoupdate.yml

name: Autoupdate
on:
 workflow_dispatch:
 schedule:
   - cron: "0 0 * * 0"

defaults:
  run:
    shell:
      bash -el {0}

jobs:
  check_update:
    name: Check if newer version exists
    runs-on: ubuntu-latest
    steps:
      - name: Checkout branch
        uses: actions/checkout@v3
        with:
          ref: ${{ github.head_ref }}
      - name: Set up Conda env
        uses: mamba-org/provision-with-micromamba@268cc19728703111bda67eb6e7328258ff6eb8b6
        with:
          environment-name: check-env
      - name: Find latest version
        id: versions
        run: |
          pkgname="$(yq '.dependencies[0]' environment.yml | grep -Eio '[a-z0-9_-]+' | head -n 1)"
          old_version=$(micromamba list -n check-env "$pkgname" --json | jq -r '.[0].version')
          micromamba update -y -n check-env -a
          new_version=$(micromamba list -n check-env "$pkgname" --json | jq -r '.[0].version')
          if [[ "$new_version" != "$old_version" ]]; then
            sed -i "s/$old_version/$new_version/g" environment.yml
            echo "pkgname=$pkgname" >> "$GITHUB_OUTPUT"
            echo "new-version=$new_version" >> "$GITHUB_OUTPUT"
          fi
      - uses: peter-evans/create-pull-request@0dfc93c1049996241252d9dc45a270b7c12dec6b
        if: steps.versions.outputs.pkgname
        with:
          commit-message: "Update ${{ steps.versions.outputs.pkgname }} to ${{ steps.versions.outputs.new-version }}"
          title: "Update ${{ steps.versions.outputs.pkgname }} to ${{ steps.versions.outputs.new-version }}"
          body: |
            A new release of ${{ steps.versions.outputs.pkgname }} was detected on conda-forge.

            This PR updates ${{ steps.versions.outputs.pkgname }} to version ${{ steps.versions.outputs.new-version }}.

            **After merging, please manually create and push a ${{ steps.versions.outputs.new-version }} tag:**

            ```
            bash -xc 'tmp=$(mktemp -d) && git clone ${{ github.server_url }}/${{ github.repository }} $tmp && cd $tmp && git tag ${{ steps.versions.outputs.new-version }} && git push --tags'
            ```
          branch: v${{ steps.versions.outputs.new-version }}
          delete-branch: true