devilspie2: add module (#1477)

Co-authored-by: Sumner Evans <me@sumnerevans.com>
Co-authored-by: Nicolas Berbiche <nicolas@normie.dev>

tests/modules/services/devilspie2/config.lua

@@ -0,0 +1,11 @@
+if (get_window_class() == "Gnome-terminal") then
+    make_always_on_top();
+end
+
+if string.match(get_window_name(), "LibreOffice Writer") then
+    maximize();
+end
+
+if (get_window_class()=="Org.gnome.Nautilus") then
+   set_window_geometry(1600,300,900,700);
+end

tests/modules/services/devilspie2/configuration.nix

@@ -0,0 +1,39 @@
+{ config, pkgs, ... }: {
+  config = {
+    services.devilspie2 = {
+      enable = true;
+
+      config = ''
+        if (get_window_class() == "Gnome-terminal") then
+            make_always_on_top();
+        end
+
+        if string.match(get_window_name(), "LibreOffice Writer") then
+            maximize();
+        end
+
+        if (get_window_class()=="Org.gnome.Nautilus") then
+           set_window_geometry(1600,300,900,700);
+        end
+      '';
+    };
+
+    nixpkgs.overlays = [
+      (self: super: { devilspie2 = pkgs.writeScriptBin "dummy-devilspie2" ""; })
+    ];
+
+    nmt.script = ''
+      configlua=home-files/.config/devilspie2/config.lua
+
+      assertFileExists $configlua
+
+      assertFileContent $configlua ${./config.lua}
+
+      serviceFile=home-files/.config/systemd/user/devilspie2.service
+
+      assertFileExists $serviceFile
+
+      assertFileRegex $serviceFile 'ExecStart=.*/bin/devilspie2'
+    '';
+  };
+}

tests/modules/services/devilspie2/default.nix

@@ -0,0 +1 @@
+{ devilspie2-configuration = ./configuration.nix; }