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nixpkgs/modules/misc/version.nix
2012-06-22 10:28:06 -04:00

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Nix

{ config, pkgs, ... }:
with pkgs.lib;
{
options = {
system.nixosVersion = mkOption {
default =
builtins.readFile ../../.version
+ (if builtins.pathExists ../../.version-suffix then builtins.readFile ../../.version-suffix else "pre-git");
description = "NixOS version.";
};
};
config = {
# Generate /etc/os-release. See
# http://0pointer.de/public/systemd-man/os-release.html for the
# format.
environment.etc = singleton
{ source = pkgs.writeText "os-release"
''
NAME=NixOS
ID=nixos
VERSION="${config.system.nixosVersion}"
VERSION_ID="${config.system.nixosVersion}"
PRETTY_NAME="NixOS ${config.system.nixosVersion}"
HOME_URL="http://nixos.org/"
'';
target = "os-release";
};
};
}