lint.yml

name: lint

on:
  pull_request:
  push:
    branches: [main]
  merge_group:

jobs:
  pre-commit:
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest]

    runs-on: ${{ matrix.os }}
    env:
      NIX_PATH: nixpkgs=https://github.com/NixOS/nixpkgs/archive/43862987c3cf2554a542c6dd81f5f37435eb1423.tar.gz # keep in sync with shell.nix

    steps:
      - uses: actions/checkout@v3

      - name: install nix
        uses: nixbuild/nix-quick-install-action@v22

      - name: setup direnv
        uses: JRMurr/direnv-nix-action@v4.1.0
        with:
          install-nix: "false" # we already install nix
          cache-store: "false" # turned out to be faster without the cache

      - name: Setup backend pypackages cache
        uses: actions/cache@v3
        with:
          path: |
            backend/__pypackages__/
          key: ${{ runner.os }}-pypackages-${{ hashFiles('backend/pdm.lock') }}

      - name: Setup worker pypackages cache
        uses: actions/cache@v3
        with:
          path: |
            worker/__pypackages__/
          key: ${{ runner.os }}-pypackages-${{ hashFiles('worker/pdm.lock') }}

      - name: install dependencies
        run: ./packaging/install_dependencies.sh

      - name: cache pre-commit env
        uses: actions/cache@v3
        with:
          path: ~/.cache/pre-commit
          key: ${{ matrix.os }}-${{ hashFiles('.pre-commit-config.yaml') }}

      - name: run pre-commit
        run: pre-commit run --show-diff-on-failure --color=always --all-files