update-weekly.yml

name: weekly updates

on:
  schedule:
    - cron: "0 18 * * 1" # NOTE: Mondays at 6 pm GMT

jobs:
  fenix:
    runs-on: "ubuntu-latest"
    steps:
      - name: checkout
        uses: actions/checkout@v4

      - name: install Nix
        uses: DeterminateSystems/nix-installer-action@main

      - name: update Fenix
        run: nix flake lock --update-input fenix

      - name: open PR
        uses: peter-evans/create-pull-request@v5
        with:
          commit-message: update Fenix
          branch: actions/update-weekly
          title: Fenix update
          body: >-
            # Why

            Rustaceans like having the latest nightly. Let's give it to them.

            # What Changed

            Updated fenix input.

            # Notes
            
            ***Please*** test before merging!

            This PR is created via a GitHub Actions Workflow. Please
            take care to ensure its contents are correct. This Workflow
            runs every week to ensure the rust-nightly module is regularly
            updated.

      - name: lock modules
        run: nix develop -c python scripts/lock_modules.py

      - name: push locked modules
        run: |
          git commit -am 'lock modules'
          git push actions/update-weekly