ci.yml

name: CI

on:
  push:
    branches:
      - main
  pull_request:

jobs:
  ci:
    runs-on: ubuntu-latest
    steps:
      # This step should be a no-op on actual GitHub Actions, but it is necessary when using the "Micro" image with
      # https://github.com/nektos/act. See https://github.com/nektos/act/issues/107 and
      # https://github.com/nektos/act/issues/269.
      #
      # We use `sudo --version` to selectively run the install only when not on GitHub Actions.
      - run: sudo --version || (apt update && apt install -y curl git sudo xz-utils)

      - uses: "cachix/install-nix-action@v22"
        with:
          extra_nix_config: experimental-features = nix-command flakes
          nix_path: nixpkgs=channel:nixos-unstable
      - name: nix-info
        run: "nix-shell -p nix-info --run 'nix-info -m'"

      - name: Checkout
        uses: actions/checkout@v4

      - name: Lint
        run: "nix develop --command ruff check ."
      - name: Format
        run: "nix develop --command ruff format --diff ."

      # `nix build` also runs pytest, but it does so in a restrictive sandbox that disallows network. This means that we
      # can't run any tests that download weights. Running outside of the nix build environment allows us to run those
      # tests as well.
      - name: pytest
        run: "nix develop --command pytest"
      - name: Build
        run: "nix build"