Gomod2nix

Convert applications using Go modules -> Nix

Usage

From the Go project directory execute:

$ gomod2nix

This will create gomod2nix.toml that's used like so

let
  pkgs = import <nixpkgs> {
    overlays = [
      (self: super: {
        buildGoApplication = super.callPackage ./builder { };
      })
    ];
  };
in pkgs.buildGoApplication {
  pname = "gomod2nix-example";
  version = "0.1";
  src = ./.;
  modules = ./gomod2nix.toml;
}

For more in-depth usage check the Getting Started and the Nix API reference docs.

FAQ

Why not continue work on vgo2nix?

Vgo2nix was built on top of the old Nixpkgs build abstraction buildGoPackage, this abstraction was built pre-modules and suffered from some fundamental design issues with modules, such as only allowing a single version of a Go package path inside the same build closure, something that Go itself allows for.

We need a better build abstraction that takes Go modules into account, while remaining import from derivation-free.

Will this be included in Nixpkgs

Yes. Once the API is considered stable.

Motivation

The announcement blog post contains comparisons with other Go build systems for Nix and additional notes on the design choices made.

License

This project is licensed under the MIT License. See the LICENSE file for details.

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