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

jobs:
  lockfile:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
      - name: Install Nix
        uses: cachix/install-nix-action@v16
        with:
          nix_path: nixpkgs=channel:nixos-unstable
          extra_nix_config: |
            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
      - name: install jq
        run:  nix-env -i jq -f '<nixpkgs>'
      - name: install curl
        run:  nix-env -if curl -f '<nixgpks>'
      - name: update rust-toolchain
        run:  assets/scripts/update-toolchain.sh
      - name: Create Pull Request
        id: cpr
        uses: peter-evans/create-pull-request@v3
        with:
          commit-message: Update `rust-toolchain`
          committer: GitHub <noreply@github.com>
          author: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
          signoff: false
          branch: update/rust-toolchain
          delete-branch: true
          title: '[Update] rust-toolchain'
          body: |
            Update rust-toolchain file
          labels: |
            dependencies
            automated
            rust