81 lines
2.5 KiB
Nix
81 lines
2.5 KiB
Nix
{ config, lib, ... }:
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let
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inherit (lib)
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flip
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mapAttrs
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attrNames
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mkOption
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types
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mkMerge
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isAttrs
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;
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in
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{
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# Expose a home manager module for each user that allows extending
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# environment.persistence.${sourceDir}.users.${userName} simply by
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# specifying home.persistence.${sourceDir} in home manager.
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home-manager.sharedModules = [
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{
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options.home.persistence = mkOption {
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description = "Additional persistence config for the given source path";
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default = { };
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type = types.attrsOf (
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types.submodule {
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options = {
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files = mkOption {
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description = "Additional files to persist via NixOS impermanence.";
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type = types.listOf (types.either types.attrs types.str);
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default = [ ];
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};
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directories = mkOption {
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description = "Additional directories to persist via NixOS impermanence.";
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type = types.listOf (types.either types.attrs types.str);
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default = [ ];
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};
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};
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}
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);
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};
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}
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];
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# For each user that has a home-manager config, merge the locally defined
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# persistence options that we defined above.
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imports =
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let
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mkUserFiles = map (
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x: { parentDirectory.mode = "700"; } // (if isAttrs x then x else { file = x; })
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);
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mkUserDirs = map (x: { mode = "700"; } // (if isAttrs x then x else { directory = x; }));
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in
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[
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{
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environment.persistence = mkMerge (
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flip map (attrNames config.home-manager.users) (
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user:
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let
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hmUserCfg = config.home-manager.users.${user};
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in
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flip mapAttrs hmUserCfg.home.persistence (
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_: sourceCfg: {
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users.${user} = {
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# This needs to be set for allo users with non
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# standart home (not /home/<userName>
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# due to nixpkgs it
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# can't be deduced from homeDirectory
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# as there will be infinite recursion
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# If this setting is forgotten there
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# are assertions in place warning you
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home = { root = "/root"; }.${user} or "/home/${user}";
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files = mkUserFiles sourceCfg.files;
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directories = mkUserDirs sourceCfg.directories;
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};
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}
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)
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)
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);
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}
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];
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}
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