To test a nix package derivation, drop the flake.nix into the directory of the default.nix
and temporarily add it to the local clone of the nixpkgs git repository.
$ git add --intent-to-add flake.nixThen, to build the package and use the output in a dev shell:
$ nix develop
...
(nix:nix-shell-env) $
| { | |
| description = "build target package"; | |
| inputs = { | |
| target = { | |
| url = "path:default.nix"; | |
| flake = false; | |
| }; | |
| nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable"; | |
| systems.url = "github:nix-systems/default"; | |
| }; | |
| outputs = | |
| { | |
| systems, | |
| nixpkgs, | |
| ... | |
| }@inputs: | |
| let | |
| inherit (nixpkgs) lib; | |
| overlays = [ | |
| ( | |
| final: prev: | |
| let | |
| pkgs = nixpkgs.legacyPackages.${prev.system}; | |
| in | |
| { | |
| target = pkgs.callPackage inputs.target { }; | |
| } | |
| ) | |
| ]; | |
| eachSystem = | |
| f: | |
| lib.genAttrs (import systems) ( | |
| system: | |
| f ( | |
| import nixpkgs { | |
| inherit system overlays; | |
| } | |
| ) | |
| ); | |
| in | |
| { | |
| devShells = eachSystem (pkgs: { | |
| default = pkgs.mkShell { | |
| packages = with pkgs; [ | |
| target | |
| ]; | |
| }; | |
| }); | |
| packages = eachSystem (pkgs: { | |
| default = pkgs.target; | |
| }); | |
| }; | |
| } |