Video 76 reference

Watch the video

Basic derivation

derivation {
  name = "name";
  builder = "/bin/sh";
  args = ["-c" "echo 'hello world' > $out"];
  system = "x86_64-linux";
}

Build the package

$ nix-build ./path/to/derivation.nix

Basic mkDerivation derivation

let
  pkgs = import <nixpkgs> {};
in
pkgs.stdenv.mkDerivation {
  name = "myPackage";
  src = ./.;
  buildPhase = ''
    echo 'hello world' > $out
  '';
}

Build the package

$ nix-build ./path/to/derivation.nix

Basic derivation

derivation {
  name = "name";
  builder = "/bin/sh";
  args = ["-c" "echo 'hello world' > $out"];
  system = "x86_64-linux";
}

Build the package

$ nix-build ./path/to/derivation.nix

CallPackage Derivation

{
  stdenv,
}:

stdenv.mkDerivation {
  name = "myPackage";
  src = ./.;
  buildPhase = ''
    echo 'hello world' > $out
  '';
}

Build the package

$ nix-build -E 'with import <nixpkgs> {}; callPackage ./package.nix {}'

nixpkgs will automatically provide all requested dependencies.

Flake Derivation

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  };

  outputs = { self, nixpkgs }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs { inherit system; };
    in {
      packages.${system}.default =
        pkgs.stdenv.mkDerivation {
          pname = "myPackage";
          version = "0.1.0";

          src = ./.;

          buildPhase = ''
            echo 'hello world' > $out
          '';
        };
    };
}

Build the package

$ nix build /path/to/flake