Add parsed nix config (#23)

Add a way to write the gBar configuration in the nix language, like many
other home manager modules, this spares, atleast nix users, from the
trouble of using a new config language and integrates it nicer into
existing home manager configs.

README.md

@@ -40,7 +40,7 @@ You can install it e.g.: with yay
 If you choose the Nix/NixOS installation there are a couple of ways to do it but they all require you to have flakes enabled.
 - Building it seperately and just running the binary, run nix build in the directory and use the binary from ./result/bin
 - Import the flake to inputs and then add `gBar.defaultPackage.x86_64-linux` to either environment.systemPackages or home.packages.
-- Use the home manager module. This is done by, as in the previous way, importing the flake and then adding `gBar.homeManagerModules.x86_64-linux.default` into your home-manager imorts section. This exposes the option programs.gBar to home manager and you can look at the module file to see available options.
+- Use the home manager module. This is done by, as in the previous way, importing the flake and then adding `gBar.homeManagerModules.x86_64-linux.default` into your home-manager imorts section. This exposes the option programs.gBar to home manager and you can look at the module file to see available options, but in short under `programs.gBar.config` you can put all options from the standard configs names (some exceptions) in there and it works like expected, some options have a refined configuration syntax.
 
 ## Running gBar
 *Open bar on monitor 0*

flake.lock

@@ -1,12 +1,15 @@
 {
   "nodes": {
     "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
       "locked": {
-        "lastModified": 1676283394,
+        "lastModified": 1689068808,
-        "narHash": "sha256-XX2f9c3iySLCw54rJ/CZs+ZK6IQy7GXNY4nSOyu2QG4=",
+        "narHash": "sha256-6ixXo3wt24N/melDWjq70UuHQLxGV8jZvooRanIHXw0=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "3db36a8b464d0c4532ba1c7dda728f4576d6d073",
+        "rev": "919d646de7be200f3bf08cb76ae1f09402b6f9b4",
         "type": "github"
       },
       "original": {
@@ -17,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1677262115,
+        "lastModified": 1689752456,
-        "narHash": "sha256-DPkHiJw2QnKYAzQXBlwelwghxbcD5oigK2kLPHMpMQ8=",
+        "narHash": "sha256-VOChdECcEI8ixz8QY+YC4JaNEFwQd1V8bA0G4B28Ki0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "806075be2bdde71895359ed18cb530c4d323e6f6",
+        "rev": "7f256d7da238cb627ef189d56ed590739f42f13b",
         "type": "github"
       },
       "original": {
@@ -36,6 +39,21 @@
         "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs"
       }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",

module.nix

@@ -5,49 +5,237 @@ self:
 , lib
 , pkgs
 , ...
-}: let
+}:
+
+with lib;
+
+let
   cfg = config.programs.gBar;
 
   defaultGBarPackage = self.defaultPackage.x86_64-linux;
 
 in {
   options.programs.gBar = {
-    enable = lib.mkEnableOption "Wether to enable gBar, a blazingly fast statusbar written in c++";
+    enable = mkEnableOption "Wether to enable gBar, a blazingly fast statusbar written in c++";
 
-    package = lib.mkOption {
+    package = mkOption {
-      type = lib.types.nullOr lib.types.package;
+      type = types.nullOr types.package;
       default = defaultGBarPackage;
-      defaultText = lib.literalExpression "<gBar flake>.packages.<system>.default";
+      defaultText = literalExpression "<gBar flake>.packages.<system>.default";
-      example = lib.literalExpression "<gBar flake>.packages.<system>.default.override { }";
+      example = literalExpression "<gBar flake>.packages.<system>.default.override { }";
       description = ''
         gBar package to use.
       '';
     };
 
-    extraConfig = lib.mkOption {
+    config = mkOption {
-      type = lib.types.nullOr lib.types.lines;
+        default = {};
-      default = null;
+        description = "Options to write to gBar config file, named as standard options";
+        type = types.submodule {
+            options = {
+                CPUThermalZone = mkOption {
+                    type = types.nullOr types.str;
+                    default = "/sys/devices/pci0000:00/0000:00:18.3/hwmon/hwmon2/temp1_input";
+                    description = "path to the cpu thermal sensor, probably something in /sys/device";
+                };
+                SuspendCommand = mkOption {
+                    type = types.str;
+                    default = "systemctl suspend";
+                    description = "The command to execute on suspend";
+                };
+                LockCommand = mkOption {
+                    type = types.nullOr types.str;
+                    default = "~/.config/scripts/sys.sh lock";
+                    description = "The command to execute on lock";
+                };
+                ExitCommand = mkOption {
+                    type = types.str;
+                    default = "killall Hyprland";
+                    description = "The command to execute on exit";
+                };
+                BatteryFolder = mkOption {
+                    type = types.nullOr types.str;
+                    default = "/sys/class/power_supply/BAT1";
+                    description = "The folder, where the battery sensors reside";
+                };
+                WorkspaceSymbols = mkOption {
+                    type = types.nullOr (types.listOf types.str);
+                    default = [];
+                    description = "A list of strings where the position in the list is the icon to change, overrides the default symbol";
+                };
+                DefaultWorkspaceSymbol = mkOption {
+                    type = types.str;
+                    default = "";
+                    description = "The default symbol for the workspaces";
+                };
+                WorkspaceScrollOnMonitor = mkOption {
+                    type = types.bool;
+                    default = true;
+                    description = "Scroll through the workspaces of the current monitor instead of all workspaces";
+                };
+                WorkspaceScrollInvert = mkOption {
+                    type = types.bool;
+                    default = false;
+                    description = "When true: Scroll up -> Next workspace instead of previous workspace. Analogous with scroll down";
+                };
+                UseHyprlandIPC = mkOption {
+                    type = types.bool;
+                    default = false;
                     description = ''
-        Configuration to write to ~/.config/gBar/config, if none nothing happens
+                        Use Hyprland IPC instead of the ext_workspace protocol for workspace polling.
+                        Hyprland IPC is *slightly* less performant (+0.1% one core), but way less bug prone,
+                        since the protocol is not as feature complete as Hyprland IPC.
+                    '';
+                };
+                Location = mkOption {
+                    type = types.enum ["T" "B" "L" "R"];
+                    default = "T";
+                    description = "The location of the bar, enumerates to one capitalised letter as above";
+                };
+                CenterTime = mkOption {
+                    type = types.bool;
+                    default = true;
+                    description = ''
+                        Forces the time to be centered.
+                        This can cause the right widget to clip outside, if there is not enough space on screen (e.g. when opening the text)
+                        Setting this to false will definitely fix this issue, but it won't look very good, since it will be off-center.
+                        So try to decrease "TimeSpace" first, before setting this configuration to false.
+                    '';
+                };
+                TimeSpace = mkOption {
+                    type = types.nullOr types.int;
+                    default = 300;
+                    description = ''
+                        How much space should be reserved for the time widget. Setting this too high can cause the right widget to clip outside.
+                        Therefore try to set it as low as possible if you experience clipping.
+                        Although keep in mind, that a value that is too low can cause the widget to be be off-center,
+                        which can also cause clipping.
+                        If you can't find an optimal value, consider setting 'CenterTime' to false
+                    '';
+                };
+                DateTimeStyle = mkOption {
+                    type = types.nullOr types.str;
+                    default = "";
+                    description = "Set datetime style";
+                };
+                AudioInput = mkOption {
+                    type = types.bool;
+                    default = false;
+                    description = "Adds a microphone volume widget";
+                };
+                AudioRevealer = mkOption {
+                    type = types.bool;
+                    default = false;
+                    description = "Sets the audio slider to be on reveal (Just like the sensors) when true. Only affects the bar.";
+                };
+                AudioScrollSpeed = mkOption {
+                    type = types.nullOr types.int;
+                    default = 5;
+                    description = "Sets the rate of change of the slider on each scroll. In Percent";
+                };
+                AudioMinVolume = mkOption {
+                    type = types.nullOr types.int;
+                    default = 0;
+                    description = "Limits the range of the audio slider. Only works for audio output. Slider 'empty' is AudioMinVolume, Slider 'full' is AudioMaxVolume";
+                };
+                AudioMaxVolume = mkOption {
+                    type = types.nullOr types.int;
+                    default = 100;
+                    description = "";
+                };
+                NetworkAdapter = mkOption {
+                    type = types.nullOr types.str;
+                    default = "eno1";
+                    description = "The network adapter to use. You can query /sys/class/net for all possible values";
+                };
+                NetworkWidget = mkOption {
+                    type = types.bool;
+                    default = true;
+                    description = "Disables the network widget when set to false";
+                };
+                EnableSNI = mkOption {
+                    type = types.bool;
+                    default = true;
+                    description = "Enable tray icons";
+                };
+                SNIIconSize = mkOption {
+                    type = types.nullOr (types.attrsOf types.int);
+                    default = {};
+                    description = "sets the icon size for a SNI icon, an attribute set where, for example you can put Discord = 23 as an attribute and thus make discord slightly smaller Set to * to apply to all";
+                };
+                SNIIconPaddingTop = mkOption {
+                    type = types.nullOr (types.attrsOf types.int);
+                    default = {};
+                    description = "Can be used to push the Icon down. Negative values are allowed same as IconSize with an attribute set";
+                };
+                # These set the range for the network widget. The widget changes colors at six intervals:
+                #    - Below Min...Bytes ("under")
+                #    - Between ]0%;25%]. 0% = Min...Bytes; 100% = Max...Bytes ("low")
+                #    - Between ]25%;50%]. 0% = Min...Bytes; 100% = Max...Bytes ("mid-low")
+                #    - Between ]50%;75%]. 0% = Min...Bytes; 100% = Max...Bytes ("mid-high")
+                #    - Between ]75%;100%]. 0% = Min...Bytes; 100% = Max...Bytes ("high")
+                #    - Above Max...Bytes ("over")
+                MinDownloadBytes = mkOption {
+                    type = types.nullOr types.int;
+                    default = 0;
+                    description = "";
+                };
+                MaxDownloadBytes = mkOption {
+                    type = types.nullOr types.int;
+                    default = 10485760;
+                    description = "";
+                };
+                MinUploadBytes = mkOption {
+                    type = types.nullOr types.int;
+                    default = 0;
+                    description = "";
+                };
+                MaxUploadBytes = mkOption {
+                    type = types.nullOr types.int;
+                    default = 5242880;
+                    description = "";
+                };
+            };
+        };
+    };
+
+    extraConfig = mkOption {
+      type = types.nullOr types.lines;
+      default = '' '';
+      description = ''
+        Configuration to write to ~/.config/gBar/config, if you want to use your own config then set this to null and home manager wont write anything, neither the config
       '';
     };
 
-    extraCSS = lib.mkOption {
+    extraCSS = mkOption {
-      type = lib.types.nullOr lib.types.lines;
+      type = types.nullOr types.lines;
       default = null;
       description = ''
-        Configuration to write to ~/.config/gBar/config, if none nothing happens
+        Configuration to write to ~/.config/gBar/style.css, if none nothing happens
       '';
     };
   };
 
-  config = lib.mkIf cfg.enable {
+  config = let
-    home.packages = lib.optional (cfg.package != null) cfg.package;
+      # Takes attributeset with an arbitrary value and returns it as an attrset of valid gBar options
+      applyVal = x:
+          let anyToString = a: if isBool a then boolToString a else toString a;
+          in attrsets.mapAttrs (name: value:
+                      name + ": " + (anyToString value)) (filterAttrs (n2: v2: (isInt v2 || isString v2 || isBool v2))x);
+      extractLists = l:
+          (imap1 (i: v: "WorkspaceSymbol-${toString i}: " + v) l.WorkspaceSymbols) ++
+          (mapAttrsToList (n: v: "SNIIconSize: ${n}, ${toString v}") l.SNIIconSize) ++
+          (mapAttrsToList (n: v: "SNIIconPaddingTop: ${n}, ${toString v}") l.SNIIconPaddingTop);
 
-    xdg.configFile."gBar/config" = lib.mkIf (cfg.extraConfig != null) {
+      gBarConfig = (concatMapStrings (x: x + "\n") (attrValues (applyVal cfg.config)))+(concatMapStrings (x: x+"\n") (extractLists cfg.config));
-      text = cfg.extraConfig;
+
+  in mkIf cfg.enable {
+    home.packages = optional (cfg.package != null) cfg.package;
+
+    xdg.configFile."gBar/config" = mkIf (cfg.extraConfig != null) {
+      text = "# Generated by Home Manager\n" + gBarConfig + cfg.extraConfig;
     };
-    xdg.configFile."gBar/style.css" = lib.mkIf (cfg.extraCSS != null) {
+    xdg.configFile."gBar/style.css" = mkIf (cfg.extraCSS != null) {
       text = cfg.extraCSS;
     };
   };