ordinary-nix-cache

Usage

In your github actions, after installing nix, add the ordinary-nix-cache action like this:

jobs:
  build:
    steps:
      - uses: DeterminateSystems/nix-installer-action@main
      - uses: hannesg/ordinary-nix-cache@v0.1.1  # <---- here
      - run: nix build ".#devShell.x86_64-linux"

This does three things:

1. It starts a small http server that translates the nix remote cache protocol to the github actions cache protocol.
2. It sets up this http server as additional nix cache.
3. It sets up a post-build action that automatically uploads all nix builds to the github actions cache.

Configuration

None 😎

Unistall

Just remove the action from your github actions config.

To purge all caches, you can use gh:

gh cache list --json id -k "nix0" | jq '.[] | .id' | xargs -l gh cache delete

You have to run this a few times because gh gives you only 100 entries per run.

Development

Use nix + direnv to install dependencies dev dependencies.

Use bun to install js dependencies:

bun install

Run tests using bun

bun test

Bundle using bun

bun build --minify --target node index.js > dist/index.mjs