129 lines
3.6 KiB
Nix
129 lines
3.6 KiB
Nix
{ options, config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.xdg;
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fileType = (import ../lib/file-type.nix {
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inherit (config.home) homeDirectory;
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inherit lib pkgs;
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}).fileType;
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defaultCacheHome = "${config.home.homeDirectory}/.cache";
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defaultConfigHome = "${config.home.homeDirectory}/.config";
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defaultDataHome = "${config.home.homeDirectory}/.local/share";
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defaultStateHome = "${config.home.homeDirectory}/.local/state";
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getEnvFallback = name: fallback:
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let value = builtins.getEnv name;
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in if value != "" then value else fallback;
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in {
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options.xdg = {
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enable = mkEnableOption "management of XDG base directories";
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cacheHome = mkOption {
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type = types.path;
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defaultText = "~/.cache";
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apply = toString;
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description = ''
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Absolute path to directory holding application caches.
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'';
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};
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configFile = mkOption {
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type = fileType "xdg.configFile" "{var}`xdg.configHome`" cfg.configHome;
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default = { };
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description = ''
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Attribute set of files to link into the user's XDG
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configuration home.
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'';
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};
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configHome = mkOption {
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type = types.path;
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defaultText = "~/.config";
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apply = toString;
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description = ''
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Absolute path to directory holding application configurations.
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'';
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};
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dataFile = mkOption {
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type =
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fileType "xdg.dataFile" "<varname>xdg.dataHome</varname>" cfg.dataHome;
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default = { };
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description = ''
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Attribute set of files to link into the user's XDG
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data home.
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'';
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};
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dataHome = mkOption {
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type = types.path;
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defaultText = "~/.local/share";
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apply = toString;
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description = ''
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Absolute path to directory holding application data.
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'';
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};
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stateHome = mkOption {
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type = types.path;
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defaultText = "~/.local/state";
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apply = toString;
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description = ''
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Absolute path to directory holding application states.
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'';
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};
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};
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config = mkMerge [
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(let
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variables = {
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XDG_CACHE_HOME = cfg.cacheHome;
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XDG_CONFIG_HOME = cfg.configHome;
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XDG_DATA_HOME = cfg.dataHome;
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XDG_STATE_HOME = cfg.stateHome;
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};
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in mkIf cfg.enable {
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xdg.cacheHome = mkDefault defaultCacheHome;
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xdg.configHome = mkDefault defaultConfigHome;
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xdg.dataHome = mkDefault defaultDataHome;
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xdg.stateHome = mkDefault defaultStateHome;
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home.sessionVariables = variables;
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systemd.user.sessionVariables =
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mkIf pkgs.stdenv.hostPlatform.isLinux variables;
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})
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# Legacy non-deterministic setup.
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(mkIf (!cfg.enable && versionOlder config.home.stateVersion "20.09") {
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xdg.cacheHome =
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mkDefault (getEnvFallback "XDG_CACHE_HOME" defaultCacheHome);
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xdg.configHome =
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mkDefault (getEnvFallback "XDG_CONFIG_HOME" defaultConfigHome);
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xdg.dataHome = mkDefault (getEnvFallback "XDG_DATA_HOME" defaultDataHome);
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})
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# "Modern" deterministic setup.
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(mkIf (!cfg.enable && versionAtLeast config.home.stateVersion "20.09") {
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xdg.cacheHome = mkDefault defaultCacheHome;
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xdg.configHome = mkDefault defaultConfigHome;
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xdg.dataHome = mkDefault defaultDataHome;
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xdg.stateHome = mkDefault defaultStateHome;
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})
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{
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home.file = mkMerge [
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(mapAttrs' (name: file: nameValuePair "${cfg.configHome}/${name}" file)
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cfg.configFile)
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(mapAttrs' (name: file: nameValuePair "${cfg.dataHome}/${name}" file)
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cfg.dataFile)
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{ "${cfg.cacheHome}/.keep".text = ""; }
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];
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}
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];
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}
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