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08b9155e20
A new NixOS module that adds two new options to `system.build`: - imageModules: An attrset mapping image variant names to a list of nixos modules to use when building such images. - images: An attrset mapping image variant names to a nixos instance based on the current config plus variant-specific modules (see `system.build.imageModules` above.
57 lines
1.3 KiB
Nix
57 lines
1.3 KiB
Nix
{
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config,
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lib,
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pkgs,
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extendModules,
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...
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}:
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let
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inherit (lib) types;
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imageModules = { };
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imageConfigs = lib.mapAttrs (
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name: modules:
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extendModules {
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inherit modules;
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}
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) config.image.modules;
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in
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{
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options = {
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system.build = {
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images = lib.mkOption {
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type = types.lazyAttrsOf types.raw;
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readOnly = true;
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description = ''
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Different target images generated for this NixOS configuration.
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'';
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};
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};
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image.modules = lib.mkOption {
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type = types.attrsOf (types.listOf types.deferredModule);
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description = ''
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image-specific NixOS Modules used for `system.build.images`.
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'';
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};
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};
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config.image.modules = lib.mkIf (!config.system.build ? image) imageModules;
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config.system.build.images = lib.mkIf (!config.system.build ? image) (
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lib.mapAttrs (
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name: nixos:
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let
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inherit (nixos) config;
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inherit (config.image) filePath;
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builder =
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config.system.build.image
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or (throw "Module for `system.build.images.${name}` misses required `system.build.image` option.");
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in
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lib.recursiveUpdate builder {
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passthru = {
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inherit config filePath;
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};
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}
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) imageConfigs
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);
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}
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