update_flake_lock.yml

name: update flake.lock
on:
  workflow_dispatch: # allows manual triggering
  schedule: 
    - cron: '0 0 * * 0' # runs weekly on Sunday at 00:00

jobs:
  update-lockfile:
    if: github.repository_owner == 'CharlesChiuGit'
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0 # Required to count the commits
      - uses: cachix/install-nix-action@v26
        with:
          nix_path: nixpkgs=channel:nixos-unstable
      - name: Run flake-update
        run: |
          nix flake update
      - uses: stefanzweifel/git-auto-commit-action@v5
        with:
          commit_message: "chore(lockfile): auto update flake.lock"
          commit_user_name: "github-actions[bot]"
          commit_user_email: "41898282+github-actions[bot]@users.noreply.github.com"
          commit_author: "github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>"
          file_pattern: "flake.lock"