ci.yml

name: CI

on:
  push:
    branches: [main]
  pull_request:

jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Install Nix
        uses: cachix/install-nix-action@v26
        with:
          nix_path: nixpkgs=channel:nixos-unstable
      - name: Setup Cachix
        uses: cachix/cachix-action@v14
        with:
          name: f0rthsp4ce
          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
      - name: Cache Rust
        uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-rust-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: |
            ${{ runner.os }}-rust-

      - name: Check
        run: |
          nix develop --command just check
          nix develop --command cargo fmt --check

      - name: Check hashes.nix
        run: |
          sha256sum hashes.nix > /tmp/original_hashes
          nix develop --command just hashes
          sha256sum hashes.nix > /tmp/new_hashes
          if diff /tmp/original_hashes /tmp/new_hashes >/dev/null; then
            echo "OK! Files are the same."
          else
            echo "Error! Files differ."
            echo "New content:"
            cat hashes.nix
            exit 1
          fi

  build:
    name: Build
    runs-on: ubuntu-latest
    if: ${{ github.ref == 'refs/heads/main' }}
    needs: lint
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Install Nix
        uses: cachix/install-nix-action@v26
        with:
          nix_path: nixpkgs=channel:nixos-unstable
      - name: Setup Cachix
        uses: cachix/cachix-action@v14
        with:
          name: f0rthsp4ce
          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"

      - name: Build
        run: nix build