waybar: make module a freeform module, remove warnings
The `style` option now also accepts a path instead of a text configuration. Keeping up with new Waybar options is annoying, so make the module a freeform module. The `modules` option will be removed in release 22.05. The logic to generate warnings for modules and everything was removed. I don't want to maintain the code that generates these warnings anymore.
This commit is contained in:
Nicolas Berbiche
parent
9de77227d7
commit
7c320a5325
7 changed files with 106 additions and 217 deletions
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@ -2,72 +2,26 @@
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let
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inherit (lib)
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any attrByPath attrNames concatMap concatMapStringsSep elem elemAt filter
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filterAttrs flip foldl' hasPrefix head length literalExpression mergeAttrs
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optionalAttrs stringLength subtractLists types unique;
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all filterAttrs hasAttr isStorePath literalExpression optionalAttrs types;
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inherit (lib.options) mkEnableOption mkOption;
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inherit (lib.modules) mkIf mkMerge;
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cfg = config.programs.waybar;
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# Used when generating warnings
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modulesPath = "programs.waybar.settings.[].modules";
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jsonFormat = pkgs.formats.json { };
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# Taken from <https://github.com/Alexays/Waybar/blob/cc3acf8102c71d470b00fd55126aef4fb335f728/src/factory.cpp> (2020/10/10)
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# Order is preserved from the file for easier matching
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defaultModuleNames = [
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"battery"
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"sway/mode"
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"sway/workspaces"
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"sway/window"
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"sway/language"
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"wlr/taskbar"
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"river/tags"
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"idle_inhibitor"
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"memory"
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"cpu"
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"clock"
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"disk"
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"tray"
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"network"
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"backlight"
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"pulseaudio"
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"mpd"
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"sndio"
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"temperature"
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"bluetooth"
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];
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# Allow specifying a CSS id after the default module name
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isValidDefaultModuleName = x:
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any (name:
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let
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res = builtins.split name x;
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# if exact match of default module name
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in if res == [ "" [ ] ] || res == [ "" [ ] "" ] then
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true
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else
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head res == "" && length res >= 3 && hasPrefix "#" (elemAt res 2))
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defaultModuleNames;
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isValidCustomModuleName = x: hasPrefix "custom/" x && stringLength x > 7;
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margins = let
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mkMargin = name: {
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"margin-${name}" = mkOption {
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type = types.nullOr types.int;
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default = null;
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example = 10;
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description = "Margins value without unit.";
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};
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mkMargin = name:
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mkOption {
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type = types.nullOr types.int;
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default = null;
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example = 10;
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description = "Margin value without unit.";
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};
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margins = map mkMargin [ "top" "left" "bottom" "right" ];
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in foldl' mergeAttrs { } margins;
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waybarBarConfig = with lib.types;
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waybarBarConfig = with types;
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submodule {
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freeformType = jsonFormat.type;
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options = {
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layer = mkOption {
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type = nullOr (enum [ "top" "bottom" ]);
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@ -164,7 +118,10 @@ let
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example = "20 5";
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};
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inherit (margins) margin-top margin-left margin-bottom margin-right;
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margin-left = mkMargin "left";
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margin-right = mkMargin "right";
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margin-bottom = mkMargin "bottom";
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margin-top = mkMargin "top";
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name = mkOption {
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type = nullOr str;
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@ -192,9 +149,9 @@ in {
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package = mkOption {
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type = package;
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default = pkgs.waybar;
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defaultText = "pkgs.waybar";
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defaultText = literalExpression "pkgs.waybar";
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description = ''
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Waybar package to use. Set to <code>null</code> to use the default module.
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Waybar package to use. Set to <code>null</code> to use the default package.
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'';
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};
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@ -241,12 +198,17 @@ in {
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systemd.enable = mkEnableOption "Waybar systemd integration";
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style = mkOption {
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type = nullOr str;
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type = nullOr (either path str);
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default = null;
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description = ''
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CSS style of the bar.
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</para>
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<para>
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See <link xlink:href="https://github.com/Alexays/Waybar/wiki/Configuration"/>
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for the documentation.
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</para>
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<para>
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If the value is set to a path literal, then the path will be used as the css file.
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'';
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example = ''
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* {
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@ -266,122 +228,62 @@ in {
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};
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config = let
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writePrettyJSON = jsonFormat.generate;
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# Removes nulls because Waybar ignores them.
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# This is not recursive.
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removeNulls = filterAttrs (_: v: v != null);
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configSource = let
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# Removes nulls because Waybar ignores them for most values
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removeNulls = filterAttrs (_: v: v != null);
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# Makes the actual valid configuration Waybar accepts
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# (strips our custom settings before converting to JSON)
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makeConfiguration = configuration:
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let
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# The "modules" option is not valid in the JSON
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# as its descendants have to live at the top-level
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settingsWithoutModules = removeAttrs configuration [ "modules" ];
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settingsModules =
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optionalAttrs (configuration.modules != { }) configuration.modules;
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in removeNulls (settingsWithoutModules // settingsModules);
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# The clean list of configurations
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finalConfiguration = map makeConfiguration cfg.settings;
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# Makes the actual valid configuration Waybar accepts
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# (strips our custom settings before converting to JSON)
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makeConfiguration = configuration:
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let
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# The "modules" option is not valid in the JSON
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# as its descendants have to live at the top-level
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settingsWithoutModules = removeAttrs configuration [ "modules" ];
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settingsModules =
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optionalAttrs (configuration.modules != { }) configuration.modules;
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in removeNulls (settingsWithoutModules // settingsModules);
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# The clean list of configurations
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finalConfiguration = map makeConfiguration cfg.settings;
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in writePrettyJSON "waybar-config.json" finalConfiguration;
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#
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# Warnings are generated based on the following things:
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# 1. A `module` is referenced in any of `modules-{left,center,right}` that is neither
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# a default module name nor defined in `modules`.
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# 2. A `module` is defined in `modules` but is not referenced in either of
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# `modules-{left,center,right}`.
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# 3. A custom `module` configuration is defined in `modules` but has an invalid name
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# for a custom module (i.e. not "custom/my-module-name").
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#
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warnings = let
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mkUnreferencedModuleWarning = name:
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"The module '${name}' defined in '${modulesPath}' is not referenced "
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+ "in either `modules-left`, `modules-center` or `modules-right` of Waybar's options";
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mkUndefinedModuleWarning = settings: name:
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let
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# Locations where the module is undefined (a combination modules-{left,center,right})
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locations = flip filter [ "left" "center" "right" ]
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(x: elem name settings."modules-${x}");
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mkPath = loc: "'${modulesPath}-${loc}'";
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# The modules-{left,center,right} configuration that includes
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# an undefined module
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path = concatMapStringsSep " and " mkPath locations;
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in "The module '${name}' defined in ${path} is neither "
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+ "a default module or a custom module declared in '${modulesPath}'";
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mkInvalidModuleNameWarning = name:
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"The custom module '${name}' defined in '${modulesPath}' is not a valid "
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+ "module name. A custom module's name must start with 'custom/' "
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+ "like 'custom/mymodule' for instance";
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allFaultyModules = flip map cfg.settings (settings:
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let
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allModules = unique
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(concatMap (x: attrByPath [ "modules-${x}" ] [ ] settings) [
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"left"
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"center"
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"right"
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]);
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declaredModules = attrNames settings.modules;
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# Modules declared in `modules` but not referenced in `modules-{left,center,right}`
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unreferencedModules = subtractLists allModules declaredModules;
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# Modules listed in modules-{left,center,right} that are not default modules
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nonDefaultModules =
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filter (x: !isValidDefaultModuleName x) allModules;
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# Modules referenced in `modules-{left,center,right}` but not declared in `modules`
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undefinedModules = subtractLists declaredModules nonDefaultModules;
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# Check for invalid module names
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invalidModuleNames = filter
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(m: !isValidCustomModuleName m && !isValidDefaultModuleName m)
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declaredModules;
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in {
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# The Waybar bar configuration (since config.settings is a list)
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inherit settings;
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undef = undefinedModules;
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unref = unreferencedModules;
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invalidName = invalidModuleNames;
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});
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allWarnings = flip concatMap allFaultyModules
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({ settings, undef, unref, invalidName }:
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let
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unreferenced = map mkUnreferencedModuleWarning unref;
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undefined = map (mkUndefinedModuleWarning settings) undef;
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invalid = map mkInvalidModuleNameWarning invalidName;
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in undefined ++ unreferenced ++ invalid);
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in allWarnings;
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configSource = jsonFormat.generate "waybar-config.json" finalConfiguration;
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in mkIf cfg.enable (mkMerge [
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{
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assertions = [
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(lib.hm.assertions.assertPlatform "programs.waybar" pkgs
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lib.platforms.linux)
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({
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assertion =
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if lib.versionAtLeast config.home.stateVersion "22.05" then
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all (x: !hasAttr "modules" x) cfg.settings
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else
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true;
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message = ''
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The `programs.waybar.settings.[].modules` option has been removed.
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It is now possible to declare modules in the configuration without nesting them under the `modules` option.
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'';
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})
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];
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home.packages = [ cfg.package ];
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}
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(mkIf (cfg.settings != [ ]) {
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# Generate warnings about defined but unreferenced modules
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inherit warnings;
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xdg.configFile."waybar/config" = {
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xdg.configFile."waybar/config" = mkIf (cfg.settings != [ ]) {
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source = configSource;
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onChange = ''
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${pkgs.procps}/bin/pkill -u $USER -USR2 waybar || true
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'';
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};
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})
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(mkIf (cfg.style != null) {
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xdg.configFile."waybar/style.css" = {
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text = cfg.style;
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xdg.configFile."waybar/style.css" = mkIf (cfg.style != null) {
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source = if builtins.isPath cfg.style || isStorePath cfg.style then
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cfg.style
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else
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pkgs.writeText "waybar/style.css" cfg.style;
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onChange = ''
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${pkgs.procps}/bin/pkill -u $USER -USR2 waybar || true
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'';
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};
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})
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}
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(mkIf cfg.systemd.enable {
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systemd.user.services.waybar = {
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