109 lines
4.3 KiB
Nix
109 lines
4.3 KiB
Nix
# Experimental flake interface to Nixpkgs.
|
|
# See https://github.com/NixOS/rfcs/pull/49 for details.
|
|
{
|
|
description = "A collection of packages for the Nix package manager";
|
|
|
|
outputs = { self }:
|
|
let
|
|
jobs = import ./pkgs/top-level/release.nix {
|
|
nixpkgs = self;
|
|
};
|
|
|
|
libVersionInfoOverlay = import ./lib/flake-version-info.nix self;
|
|
lib = (import ./lib).extend libVersionInfoOverlay;
|
|
|
|
forAllSystems = lib.genAttrs lib.systems.flakeExposed;
|
|
in
|
|
{
|
|
lib = lib.extend (final: prev: {
|
|
|
|
nixos = import ./nixos/lib { lib = final; };
|
|
|
|
nixosSystem = args:
|
|
import ./nixos/lib/eval-config.nix (
|
|
{
|
|
lib = final;
|
|
# Allow system to be set modularly in nixpkgs.system.
|
|
# We set it to null, to remove the "legacy" entrypoint's
|
|
# non-hermetic default.
|
|
system = null;
|
|
|
|
modules = args.modules ++ [
|
|
# This module is injected here since it exposes the nixpkgs self-path in as
|
|
# constrained of contexts as possible to avoid more things depending on it and
|
|
# introducing unnecessary potential fragility to changes in flakes itself.
|
|
#
|
|
# See: failed attempt to make pkgs.path not copy when using flakes:
|
|
# https://github.com/NixOS/nixpkgs/pull/153594#issuecomment-1023287913
|
|
({ config, pkgs, lib, ... }: {
|
|
config.nixpkgs.flake.source = self.outPath;
|
|
})
|
|
];
|
|
} // builtins.removeAttrs args [ "modules" ]
|
|
);
|
|
});
|
|
|
|
checks.x86_64-linux = {
|
|
tarball = jobs.tarball;
|
|
# Test that ensures that the nixosSystem function can accept a lib argument
|
|
# Note: prefer not to extend or modify `lib`, especially if you want to share reusable modules
|
|
# alternatives include: `import` a file, or put a custom library in an option or in `_module.args.<libname>`
|
|
nixosSystemAcceptsLib = (self.lib.nixosSystem {
|
|
lib = self.lib.extend (final: prev: {
|
|
ifThisFunctionIsMissingTheTestFails = final.id;
|
|
});
|
|
modules = [
|
|
./nixos/modules/profiles/minimal.nix
|
|
({ lib, ... }: lib.ifThisFunctionIsMissingTheTestFails {
|
|
# Define a minimal config without eval warnings
|
|
nixpkgs.hostPlatform = "x86_64-linux";
|
|
boot.loader.grub.enable = false;
|
|
fileSystems."/".device = "nodev";
|
|
# See https://search.nixos.org/options?show=system.stateVersion&query=stateversion
|
|
system.stateVersion = lib.versions.majorMinor lib.version; # DON'T do this in real configs!
|
|
})
|
|
];
|
|
}).config.system.build.toplevel;
|
|
};
|
|
|
|
htmlDocs = {
|
|
nixpkgsManual = jobs.manual;
|
|
nixosManual = (import ./nixos/release-small.nix {
|
|
nixpkgs = self;
|
|
}).nixos.manual.x86_64-linux;
|
|
};
|
|
|
|
# The "legacy" in `legacyPackages` doesn't imply that the packages exposed
|
|
# through this attribute are "legacy" packages. Instead, `legacyPackages`
|
|
# is used here as a substitute attribute name for `packages`. The problem
|
|
# with `packages` is that it makes operations like `nix flake show
|
|
# nixpkgs` unusably slow due to the sheer number of packages the Nix CLI
|
|
# needs to evaluate. But when the Nix CLI sees a `legacyPackages`
|
|
# attribute it displays `omitted` instead of evaluating all packages,
|
|
# which keeps `nix flake show` on Nixpkgs reasonably fast, though less
|
|
# information rich.
|
|
legacyPackages = forAllSystems (system:
|
|
(import ./. { inherit system; }).extend (final: prev: {
|
|
lib = prev.lib.extend libVersionInfoOverlay;
|
|
})
|
|
);
|
|
|
|
nixosModules = {
|
|
notDetected = ./nixos/modules/installer/scan/not-detected.nix;
|
|
|
|
/*
|
|
Make the `nixpkgs.*` configuration read-only. Guarantees that `pkgs`
|
|
is the way you initialize it.
|
|
|
|
Example:
|
|
|
|
{
|
|
imports = [ nixpkgs.nixosModules.readOnlyPkgs ];
|
|
nixpkgs.pkgs = nixpkgs.legacyPackages.x86_64-linux;
|
|
}
|
|
*/
|
|
readOnlyPkgs = ./nixos/modules/misc/nixpkgs/read-only.nix;
|
|
};
|
|
};
|
|
}
|