ALPHA: wire is a tool to deploy nixos systems
wire.althaea.zone/
implement nodeNixpkgs
authored by
marshmallow
and committed by
GitHub
f82db941
b7025821
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CHANGELOG.md
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CHANGELOG.md
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doc/reference/meta.md
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doc/reference/meta.md
···
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_Type:_ A path or an instance of `nixpkgs`.
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_Default:_ `inputs.nixpkgs.outPath`
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_Default:_ `null`
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_Examples:_
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···
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};
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}
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```
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## meta.nodeNixpkgs
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Per-node nixpkgs to override `meta.nixpkgs`.
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See `meta.nixpkgs` examples for possible values.
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_Type:_ attribute set of path or an instance of `nixpkgs`
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_Default:_ `{ }`
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_Example:_
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```nix
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{
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meta = {
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nixpkgs = import <nixpkgs> { };
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nodeNixpkgs = {
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node-b = import <special-nixpkgs> { };
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};
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};
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node-a =
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{ pkgs, ... }:
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{
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# uses <nixpkgs> (meta.nixpkgs)
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};
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node-b =
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{ pkgs, ... }:
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{
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# uses <special-nixpkgs> (meta.nodeNixpkgs.node-b)
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};
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}
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```
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runtime/evaluate.nix
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runtime/evaluate.nix
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]
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) (builtins.filter (name: builtins.hasAttr name hive) (builtins.attrNames mergedHive));
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resolvedNixpkgs =
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resolveNixpkgs =
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value: help:
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# support `<nixpkgs>`
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if builtins.isPath value then
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import value { }
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# support npins sources passed directly
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else if value ? "outPath" then
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import value { }
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# support `import <nixpkgs> { }`
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else if builtins.isAttrs value then
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value
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else
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builtins.abort "${help} was not a path, { outPath, .. }, or attrset. Was type: ${builtins.typeOf value}";
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hiveGlobalNixpkgs =
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if mergedHive.meta ? "nixpkgs" then
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# support `<nixpkgs>`
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if builtins.isPath mergedHive.meta.nixpkgs then
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import mergedHive.meta.nixpkgs { }
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# support npins sources passed directly
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else if mergedHive.meta.nixpkgs ? "outPath" then
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import mergedHive.meta.nixpkgs { }
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# support `import <nixpkgs> { }`
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else if builtins.isAttrs mergedHive.meta.nixpkgs then
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mergedHive.meta.nixpkgs
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else
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builtins.abort "meta.nixpkgs was not a path, { outPath, .. }, or attrset. Was type: ${builtins.typeOf mergedHive.meta.nixpkgs}"
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(resolveNixpkgs mergedHive.meta.nixpkgs "meta.nixpkgs")
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else
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builtins.abort "makeHive called without meta.nixpkgs specified.";
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isFlake = resolvedNixpkgs.lib.hasSuffix "-source" resolvedNixpkgs.path;
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getNodeNixpkgs =
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name:
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if mergedHive.meta ? "nodeNixpkgs" then
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if mergedHive.meta.nodeNixpkgs ? "${name}" then
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(resolveNixpkgs mergedHive.meta.nodeNixpkgs.${name} "meta.nodeNixpkgs.${name}")
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else
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hiveGlobalNixpkgs
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else
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hiveGlobalNixpkgs;
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nixpkgsIsFlake = nixpkgs: nixpkgs.lib.hasSuffix "-source" nixpkgs.path;
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evaluateNode =
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name:
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let
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evalConfig = import (resolvedNixpkgs.path + "/nixos/lib/eval-config.nix");
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nixpkgs = getNodeNixpkgs name;
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evalConfig = import (nixpkgs.path + "/nixos/lib/eval-config.nix");
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in
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evalConfig {
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modules = [
···
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mergedHive.defaults
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mergedHive.${name}
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]
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++ (resolvedNixpkgs.lib.optional isFlake {
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config.nixpkgs.flake.source = resolvedNixpkgs.lib.mkDefault resolvedNixpkgs.path;
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++ (nixpkgs.lib.optional (nixpkgsIsFlake nixpkgs) {
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config.nixpkgs.flake.source = nixpkgs.lib.mkDefault nixpkgs.path;
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});
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system = null;
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specialArgs = {
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}
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// mergedHive.meta.specialArgs or { };
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};
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nodes = builtins.listToAttrs (
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map (name: {
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inherit name;