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mirror of https://github.com/NixOS/nixpkgs.git synced 2024-12-30 01:23:03 +00:00
nixpkgs/flake.nix
Maximilian Bosch 3743c42f23
flake.nix: allow inclusion of nixpkgs as path:/.../
When adding `nixpkgs` as flake-input using the `path`-fetcher, you
currently get the following error since neither `lastModifiedDate` nor
`lastModified` are stored in `flake.lock` for paths:

```
error: --- EvalError --------------------------------------------------------------------------- nix-build
at: (48:71) in file: /nix/store/147clg8svaxyj7pl80ra9kmmm72mdg94-source/flake.nix

    47|                   system.nixos.versionSuffix =
    48|                     ".${final.substring 0 8 (self.lastModifiedDate or self.lastModified)}.${self.shortRev or "dirty"}";
      |                                                                       ^
    49|                   system.nixos.revision = final.mkIf (self ? rev) self.rev;

attribute 'lastModified' missing
```

This patch adds the fallback-value `19700101` to `versionSuffix` if none
of `lastModified{,Date}` are set in the lockfile.
2020-10-13 12:05:19 +02:00

76 lines
2.2 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;
};
lib = import ./lib;
systems = [
"x86_64-linux"
"i686-linux"
"x86_64-darwin"
"aarch64-linux"
"armv6l-linux"
"armv7l-linux"
];
forAllSystems = f: lib.genAttrs systems (system: f system);
in
{
lib = lib.extend (final: prev: {
nixosSystem = { modules, ... } @ args:
import ./nixos/lib/eval-config.nix (args // {
modules =
let
vmConfig = (import ./nixos/lib/eval-config.nix
(args // {
modules = modules ++ [ ./nixos/modules/virtualisation/qemu-vm.nix ];
})).config;
vmWithBootLoaderConfig = (import ./nixos/lib/eval-config.nix
(args // {
modules = modules ++ [
./nixos/modules/virtualisation/qemu-vm.nix
{ virtualisation.useBootLoader = true; }
];
})).config;
in
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;
system.build = {
vm = vmConfig.system.build.vm;
vmWithBootLoader = vmWithBootLoaderConfig.system.build.vm;
};
}
];
});
});
checks.x86_64-linux.tarball = jobs.tarball;
htmlDocs = {
nixpkgsManual = jobs.manual;
nixosManual = (import ./nixos/release-small.nix {
nixpkgs = self;
}).nixos.manual.x86_64-linux;
};
legacyPackages = forAllSystems (system: import ./. { inherit system; });
nixosModules = {
notDetected = import ./nixos/modules/installer/scan/not-detected.nix;
};
};
}