nixpkgs/flake.nix
Maximilian Bosch b96ba988d6
flake: drop libVersionInfoOverlay
It's not really a pkgs overlay, but a lib overlay.
2023-12-10 13:25:43 +01:00

75 lines
2.5 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 (
args // { inherit (self) lib; } // lib.optionalAttrs (! args?system) {
# 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;
}
);
});
checks.x86_64-linux.tarball = jobs.tarball;
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;
};
};
}