1.6 KiB
| id | aliases | tags |
|---|---|---|
| nixos-ci |
Continuous integration in Nix projects
This is where I'm keeping all of my research and notes on continuous integration in the Nix ecosystem.
One of the very powerful parts of using Nix to manage your project builds and dependencies is being able to have one single source of truth, for development, deployment, and CI. You write your Nix expressions once and get the same environment everywhere. No need to specify dependencies again and again for every single environment. Mitchell Hashimoto has written about this extensively on his blog.
Basic GitHub action
A guilty habit I've gotten into is setting up CI for every single project I
work on and really putting those GitHub actions free minutes to use. It's so
trivial when using Nix, since you literally don't have to do anything extra the
majority of the time. Just copy paste in a GitHub action that installs Nix and
runs nix build. That's it.
name: "Check and build flake"
on:
pull_request:
push:
branches: [main]
jobs:
lints:
name: Build
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Check flake inputs
uses: DeterminateSystems/flake-checker-action@v4
- name: Install Nix
uses: DeterminateSystems/nix-installer-action@main
- uses: DeterminateSystems/magic-nix-cache-action@main
- run: nix flake check --all-systems
- run: nix build .
This action can basically be dropped in as-is to a Nix project and start providing basic CI.