deps_nix

A Mix task that converts Mix dependencies to Nix derivations. Inspired by mix2nix.

While mix2nix is a function of a mix.lock, this project instead uses Mix's internals to allow you to choose packages from certain environments. It also supports git dependencies.

Installation

def deps do
  [
    {:deps_nix, "~> 0.0", only: :dev}
  ]
end

Optional: add aliases for deps.get and deps.update. This helps to keep your Nix dependencies in sync with what's declared in mix.exs:

def project do
  [
    ...
    aliases: [
      "deps.get": ["deps.get", "deps.nix"],
      "deps.update": ["deps.update", "deps.nix"]
    ]
  ]
end

Docs can be found at https://hexdocs.pm/deps_nix.

Usage

mix deps.nix

By default, this will generate a deps.nix file in the current directory, using only the :prod dependencies for your project.

See mix help deps.nix for more options.