# 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; }; lib = import ./lib; 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 // { modules = args.modules ++ [{ system.nixos.versionSuffix = ".${final.substring 0 8 (self.lastModifiedDate or self.lastModified or "19700101")}.${self.shortRev or "dirty"}"; system.nixos.revision = final.mkIf (self ? rev) self.rev; }]; } // 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; }); 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; }; }; }