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default.nix: define attributes necessary to build any of my hosts or their packages

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Colin 2024-06-12 02:21:50 +00:00
parent f148e5a580
commit 51b1a6e679
1 changed files with 58 additions and 4 deletions
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62
default.nix
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@ -3,7 +3,61 @@
#
# the primary purpose of this file is so i can run `updateScript`s which expect
# the root to be `default.nix`
{ pkgs ? import <nixpkgs> {} }:
pkgs.appendOverlays [
(import ./overlays/all.nix)
]
{ }:
let
mkPkgs = args: (import ./pkgs/additional/nixpkgs args).appendOverlays [
(import ./overlays/all.nix)
];
inherit (mkPkgs {}) lib;
evalHost = { name, system, branch ? "master", variant ? null }:
let
pkgs = mkPkgs { inherit system; variant = branch; };
in pkgs.nixos (
[
(lib.optionalAttrs (variant == "light") {
sane.maxBuildCost = 2;
})
(lib.optionalAttrs (variant == "min") {
sane.maxBuildCost = 0;
})
(import ./hosts/instantiate.nix { hostName = name; })
(import ./modules)
pkgs.sops-nix.nixosModules.sops
]
);
mkFlavoredHost = args: let
host = evalHost args;
# expose the toplevel nixos system as the toplevel attribute itself,
# with nested aliases for other common build targets
in host.config.system.build.toplevel.overrideAttrs (base: {
passthru = (base.passthru or {}) // {
img = host.config.system.build.img;
pkgs = host.config.system.build.pkgs;
programs = lib.mapAttrs (_: p: p.package) host.config.sane.programs;
toplevel = host.config.system.build.toplevel; #< self
};
});
mkHost = args: {
"${args.name}" = mkFlavoredHost args;
"${args.name}-next" = mkFlavoredHost args // { branch = "staging-next"; };
"${args.name}-staging" = mkFlavoredHost args // { branch = "staging"; };
"${args.name}-light" = mkFlavoredHost args // { variant = "light"; };
"${args.name}-light-next" = mkFlavoredHost args // { variant = "light"; branch = "staging-next"; };
"${args.name}-light-staging" = mkFlavoredHost args // { variant = "light"; branch = "staging"; };
"${args.name}-min" = mkFlavoredHost args // { variant = "min"; };
"${args.name}-min-next" = mkFlavoredHost args // { variant = "min"; branch = "staging-next"; };
"${args.name}-min-staging" = mkFlavoredHost args // { variant = "min"; branch = "staging-staging"; };
};
hosts = lib.foldl' (acc: host: acc // (mkHost host)) {} [
{ name = "crappy"; system = "armv7l-linux"; }
{ name = "desko"; system = "x86_64-linux"; }
{ name = "lappy"; system = "x86_64-linux"; }
{ name = "moby"; system = "aarch64-linux"; }
{ name = "rescue"; system = "x86_64-linux"; }
{ name = "servo"; system = "x86_64-linux"; }
];
in (mkPkgs {}) // {
inherit hosts;
}