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improve the handling of the different nixpkgs version in flake.nix

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asyncnomi 2025-07-24 21:45:00 +02:00
parent 0060b2e6b1
commit 24e8170453
1 changed files with 22 additions and 20 deletions
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42
flake.nix
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@ -12,28 +12,30 @@
outputs = { self, nixpkgs-25-05, nixpkgs-unstable, deploy-rs, agenix }: let
system = "x86_64-linux";
# Mapping version identifiers to nixpkgs
nixpkgsMap = {
"25.05" = nixpkgs-25-05;
"unstable" = nixpkgs-unstable;
};
importPkgs = version: overlays: import nixpkgsMap.${version} {
inherit system;
overlays = if overlays == null then [] else overlays;
};
# Unmodified nixpkgs
pkgs-25-05 = import nixpkgs-25-05 { inherit system; };
pkgs-unstable = import nixpkgs-unstable { inherit system; };
getNixpkgs = version: importPkgs version [];
# nixpkgs with deploy-rs overlay but force the nixpkgs package
deployPkgs-25-05 = import nixpkgs-25-05 {
inherit system;
overlays = [
deploy-rs.overlays.default
(self: super: { deploy-rs = { inherit (pkgs-25-05) deploy-rs; lib = super.deploy-rs.lib; }; })
];
};
deployPkgs-unstable = import nixpkgs-unstable {
inherit system;
overlays = [
deploy-rs.overlays.default
(self: super: { deploy-rs = { inherit (pkgs-unstable) deploy-rs; lib = super.deploy-rs.lib; }; })
];
};
getDeployPkgs = ver: if ver == "25.05" then deployPkgs-25-05 else deployPkgs-unstable;
getNixpkgs = ver: if ver == "25.05" then nixpkgs-25-05 else nixpkgs-unstable;
getDeployPkgs = version: importPkgs version [
deploy-rs.overlays.default
(self: super: {
deploy-rs = {
inherit (getNixpkgs version) deploy-rs;
lib = super.deploy-rs.lib;
};
})
];
nodes = import ./nodes.nix;
mapping = import ./mapping.nix;
@ -57,7 +59,7 @@
in {
nixosConfigurations = builtins.mapAttrs (name: config:
(getNixpkgs config.ver).lib.nixosSystem {
nixpkgsMap.${config.ver}.lib.nixosSystem {
system = config.system;
modules = getModulesForHost "${name}" ++ defaultModules ++ [{ hostName = "${name}"; }];
}