eww: added improvements

eww: added config options & made all config options all optional

eww: added tests

eww: fix nullOr type

eww: fix configScss and configYuck home files

eww: fix configYuck home file

eww: fix xdg.configfile

eww: fix service tests

eww: added enable options and removed deprecation for config dir

ewww: added myself to maintainers

I did this as @mainrs seems to not be very much active as based on his
commits and pr comments previously.

cc @rycee: should I remove him as a maintainer on this package?

eww: removed a re-define in bash completion

eww: fix yuck conf

chore: removed enable options from all config options

eww: added config next to yuck and scss

modules/programs/eww.nix

@@ -3,12 +3,10 @@
 with lib;
 
 let
-
   cfg = config.programs.eww;
   ewwCmd = "${cfg.package}/bin/eww";
-
 in {
-  meta.maintainers = [ hm.maintainers.mainrs ];
+  meta.maintainers = [ hm.maintainers.mainrs maintainers.eveeifyeve ];
 
   options.programs.eww = {
     enable = mkEnableOption "eww";
@@ -23,8 +21,46 @@ in {
       '';
     };
 
+    yuckConfig = mkOption {
+      type = types.nullOr types.lines;
+      default = null;
+      example = ''
+        (defwindow example
+          :monitor 0
+          :geometry (geometry :x "0%"
+                               :y "20px"
+                               :width "90%"
+                               :height "30px"
+                               :anchor "top center")
+          :stacking "fg"
+          :reserve (struts :distance "40px" :side "top")
+          :windowtype "dock"
+          :wm-ignore false
+        "example content")
+      '';
+      description = ''
+        The content that gets symlinked to
+        {file} `$XDG_CONFIG_HOME/eww/eww.yuck`.
+      '';
+    };
+
+    scssConfig = mkOption {
+      type = types.nullOr types.lines;
+      default = null;
+      example = ''
+        window {
+          background: pink;
+        }
+      '';
+      description = ''
+        The directory that gets symlinked to
+        {file} `$XDG_CONFIG_HOME/eww/eww.scss`.
+      '';
+    };
+
     configDir = mkOption {
-      type = types.path;
+      type = types.nullOr types.path;
+      default = null;
       example = literalExpression "./eww-config-dir";
       description = ''
         The directory that gets symlinked to
@@ -32,6 +68,21 @@ in {
       '';
     };
 
+    systemd.enable = mkEnableOption "Launches Eww Daemon";
+
+    systemd.target = mkOption {
+      type = types.str;
+      default = "graphical-session.target";
+      example = "sway-session.target";
+      description = ''
+        The systemd target that will automatically start the Eww service.
+
+        When setting this value to `"sway-session.target"`,
+        make sure to also enable {option}`wayland.windowManager.sway.systemd.enable`,
+        otherwise the service may never be started.
+      '';
+    };
+
     enableBashIntegration = mkEnableOption "Bash integration" // {
       default = true;
     };
@@ -45,26 +96,66 @@ in {
     };
   };
 
-  config = mkIf cfg.enable {
-    home.packages = [ cfg.package ];
-    xdg.configFile."eww".source = cfg.configDir;
+  config = mkIf cfg.enable (mkMerge [
+    {
+      assertions =
+        let message = "You can have either yuck & scss or configDir enabled";
+        in [
+          {
+            assertion = !(cfg.scssConfig == null && cfg.configDir == null);
+            inherit message;
+          }
+          {
+            assertion = !(cfg.yuckConfig == null && cfg.configDir == null);
+            inherit message;
+          }
+        ];
 
-    programs.bash.initExtra = mkIf cfg.enableBashIntegration ''
-      if [[ $TERM != "dumb" ]]; then
-        eval "$(${ewwCmd} shell-completions --shell bash)"
-      fi
-    '';
+      home.packages = [ cfg.package ];
 
-    programs.zsh.initExtra = mkIf cfg.enableZshIntegration ''
-      if [[ $TERM != "dumb" ]]; then
-        eval "$(${ewwCmd} shell-completions --shell zsh)"
-      fi
-    '';
+      programs.bash.initExtra = mkIf cfg.enableBashIntegration ''
+        if [[ $TERM != "dumb" ]]; then
+          eval "$(${ewwCmd} shell-completions --shell bash)"
+        fi
+      '';
 
-    programs.fish.interactiveShellInit = mkIf cfg.enableFishIntegration ''
-      if test "$TERM" != "dumb"
-        eval "$(${ewwCmd} shell-completions --shell fish)"
-      end
-    '';
-  };
+      programs.zsh.initExtra = mkIf cfg.enableZshIntegration ''
+        if [[ $TERM != "dumb" ]]; then
+          eval "$(${ewwCmd} shell-completions --shell zsh)"
+        fi
+      '';
+
+      programs.fish.interactiveShellInit = mkIf cfg.enableFishIntegration ''
+        if test "$TERM" != "dumb"
+          eval "$(${ewwCmd} shell-completions --shell fish)"
+        end
+      '';
+    }
+
+    (mkIf cfg.configDir
+      == null { xdg.configFile."eww".source = cfg.configDir; })
+
+    (mkIf cfg.yuckConfig == null { xdg.configFile."eww/eww.yuck".text = cfg.yuckConfig; })
+
+    (mkIf cfg.scssConfig == null { xdg.configFile."eww/eww.scss".text = cfg.scssConfig; })
+
+    (mkIf cfg.systemd.enable {
+      systemd.user.services.eww = {
+        Unit = {
+          Description = "ElKowars wacky widgets daemon";
+          Documentation = "https://elkowar.github.io/eww/";
+          After = [ "graphical-session.target" ];
+          PartOf = [ "graphical-session.target" ];
+        };
+
+        Service = {
+          ExecStart = "${cfg.package} daemon --no-daemonize";
+          ExecStop = "${cfg.package} kill";
+          ExecReload = "${cfg.package} reload";
+        };
+
+        Install = { WantedBy = [ cfg.systemd.target ]; };
+      };
+    })
+  ]);
 }

tests/default.nix

@@ -194,6 +194,7 @@ in import nmtSrc {
     ./modules/programs/beets # One test relies on services.mpd
     ./modules/programs/bemenu
     ./modules/programs/boxxy
+    ./modules/programs/eww
     ./modules/programs/firefox/firefox.nix
     ./modules/programs/firefox/floorp.nix
     ./modules/programs/foot

tests/modules/programs/eww/basic-configuration.nix

@@ -0,0 +1,38 @@
+{ config, pkgs, ... }:
+
+{
+  config = {
+    programs.eww = {
+      enable = true;
+      systemd.enable = true;
+      configYuck = ''
+        (defwindow example
+             :monitor 0
+             :geometry (geometry :x "0%"
+                                 :y "20px"
+                                 :width "90%"
+                                 :height "30px"
+                                 :anchor "top center")
+             :stacking "fg"
+             :reserve (struts :distance "40px" :side "top")
+             :windowtype "dock"
+             :wm-ignore false
+          "example content")
+      '';
+      configScss = ''
+        window {
+          background: pink;
+        }
+      '';
+    };
+
+    test.stubs.eww = { name = "eww"; };
+
+    nmt.script = ''
+      assertFileExists home-files/.config/eww/eww.yuck
+      assertFileExists home-files/.config/eww/eww.scss
+      serviceFile=$(normalizeStorePaths home-files/.config/systemd/user/eww.service)
+      assertFileContent "$serviceFile" ${./basic-configuration.service}
+    '';
+  };
+}

tests/modules/programs/eww/basic-configuration.service

@@ -0,0 +1,13 @@
+[Install]
+WantedBy=graphical-session.target
+
+[Service]
+ExecReload=@eww@ reload
+ExecStart=@eww@ daemon --no-daemonize
+ExecStop=@eww@ kill
+
+[Unit]
+After=graphical-session.target
+Description=ElKowars wacky widgets daemon
+Documentation=https://elkowar.github.io/eww/
+PartOf=graphical-session.target

tests/modules/programs/eww/default.nix

@@ -0,0 +1 @@
+{ eww-basic-configuration = ./basic-configuration.nix; }