some code improvements

src/aur.vala

@@ -33,15 +33,16 @@ namespace AUR {
 		var session = new Soup.Session ();
 		var message = new Soup.Message ("GET", uri);
 		var parser = new Json.Parser ();
-		unowned Json.Object root_object;
 		session.send_message (message);
 		try {
 			parser.load_from_data ((string) message.response_body.flatten ().data, -1);
-			root_object = parser.get_root ().get_object ();
-			prev_inter = root_object.get_array_member ("results");
 		} catch (Error e) {
 			print (e.message);
 		}
+		unowned Json.Node? root = parser.get_root ();
+		if (root != null) {
+			prev_inter = root.get_object ().get_array_member ("results");
+		}
 		int length = needles.length;
 		if (length == 1)
 			return prev_inter;
@@ -55,11 +56,13 @@ namespace AUR {
 			session.send_message (message);
 			try {
 				parser.load_from_data ((string) message.response_body.flatten ().data, -1);
-				root_object = parser.get_root ().get_object ();
-				found = root_object.get_array_member ("results");
 			} catch (Error e) {
 				print (e.message);
 			}
+			root = parser.get_root ();
+			if (root != null) {
+				found = root.get_object ().get_array_member ("results");
+			}
 			foreach (var prev_inter_node in prev_inter.get_elements ()) {
 				foreach (var found_node in found.get_elements ()) {
 					if (strcmp (prev_inter_node.get_object ().get_string_member ("Name"),
@@ -68,27 +71,31 @@ namespace AUR {
 					}
 				}
 			}
-			if (i != (length -1))
+			if (i != (length -1)) {
 				prev_inter = inter;
+			}
 			i += 1;
 		}
 		return inter;
 	}
 
-	public Json.Object? info (string pkgname) {
+	public Json.Object info (string pkgname) {
-		unowned Json.Object? pkg_info = null;
+		var pkg_info = new Json.Object ();
 		string uri = rpc_url + rpc_info + Uri.escape_string (pkgname);
 		var session = new Soup.Session ();
 		var message = new Soup.Message ("GET", uri);
 		session.send_message (message);
-		try {
 		var parser = new Json.Parser ();
+		try {
 			parser.load_from_data ((string) message.response_body.flatten ().data, -1);
-			pkg_info = parser.get_root ().get_object ().get_object_member ("results");
 		} catch (Error e) {
 			stderr.printf ("Failed to get infos about %s from AUR\n", pkgname);
 			print (e.message);
 		}
+		unowned Json.Node? root = parser.get_root ();
+		if (root != null) {
+			pkg_info = root.get_object ().get_object_member ("results");
+		}
 		return pkg_info;
 	}
 
@@ -104,14 +111,16 @@ namespace AUR {
 		var session = new Soup.Session ();
 		var message = new Soup.Message ("GET", builder.str);
 		session.send_message (message);
-		try {
 		var parser = new Json.Parser ();
+		try {
 			parser.load_from_data ((string) message.response_body.flatten ().data, -1);
-			unowned Json.Object root_object = parser.get_root ().get_object ();
-			results = root_object.get_array_member ("results");
 		} catch (Error e) {
 			print (e.message);
 		}
+		unowned Json.Node? root = parser.get_root ();
+		if (root != null) {
+			results = root.get_object ().get_array_member ("results");
+		}
 		return results;
 	}
 }

src/manager_window.vala

@@ -469,7 +469,7 @@ namespace Pamac {
 			return pkgs;
 		}
 
-		public void populate_packages_list (Alpm.List<Alpm.Package?>? pkgs, Json.Array? aur_pkgs = null) {
+		public void populate_packages_list (Alpm.List<Alpm.Package?>? pkgs, Json.Array? aur_pkgs = new Json.Array ()) {
 			packages_treeview.freeze_child_notify ();
 			packages_treeview.set_model (null);
 

src/packages_model.vala

@@ -29,23 +29,18 @@ namespace Pamac {
 			foreach (unowned Alpm.Package alpm_pkg in alpm_pkgs) {
 				all_pkgs.append (new Pamac.Package (alpm_pkg, null));
 			}
-			if (aur_pkgs != null) {
-				unowned Json.Object pkg_info;
-				string name;
 			bool found;
 			foreach (var node in aur_pkgs.get_elements ()) {
-					pkg_info = node.get_object ();
-					name = pkg_info.get_string_member ("Name");
 				// add only the packages which are not already in the list
 				found = false;
 				foreach (Pamac.Package pkg in all_pkgs) {
-						if (pkg.name == name) {
+					if (pkg.name == node.get_object ().get_string_member ("Name")) {
 						found = true;
 						break;
 					}
 				}
-					if (found == false)
+				if (found == false) {
-						all_pkgs.append (new Pamac.Package (null, pkg_info));
+					all_pkgs.append (new Pamac.Package (null, node.get_object ()));
 				}
 			}
 			if (all_pkgs.length () == 0) {

src/transaction.vala

@@ -537,7 +537,7 @@ namespace Pamac {
 		public void build_aur_packages () {
 			print ("building packages\n");
 			string action = dgettext (null,"Building packages") + "...";
-			spawn_in_term ({"echo", "-n", action});
+			spawn_in_term ({"echo", action});
 			progress_dialog.action_label.set_text (action);
 			progress_dialog.progressbar.set_fraction (0);
 			progress_dialog.progressbar.set_text ("");
@@ -1131,7 +1131,7 @@ namespace Pamac {
 
 		void on_emit_generate_mirrorlist_start () {
 			string action = dgettext (null, "Generating mirrorlist") + "...";
-			spawn_in_term ({"echo", "-n", action});
+			spawn_in_term ({"echo", action});
 			progress_dialog.action_label.set_text (action);
 			progress_dialog.progressbar.set_fraction (0);
 			progress_dialog.progressbar.set_text ("");