put mktempdir to utils namespace

src/main.vala

@@ -112,20 +112,12 @@ int download () {
 
 }
 
-string mktempdir () throws Error {
-
-    string temp_dir = null;
-    Process.spawn_command_line_sync ("mktemp -d", out temp_dir);
-    return temp_dir.strip ();
-
-}
-
 int update () {
 
     try {
 
         unowned string repo_url = Environment.get_variable ("YGG_UPDATE_REPO");
-        string temp_dir = mktempdir ();
+        string temp_dir = Utils.mktempdir ();
 
         if (repo_url == null) {
             repo_url = "https://git.macaw.me/plant_1312/Yggtk.git";

src/meson.build

@@ -1,5 +1,6 @@
 yggtk_sources = [
   'main.vala',
+  'utils.vala',
 ]
 
 yggtk = executable(

src/utils.vala

@@ -0,0 +1,26 @@
+/**
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace Utils {
+
+    string mktempdir () throws Error {
+
+        string temp_dir = null;
+        Process.spawn_command_line_sync ("mktemp -d", out temp_dir);
+        return temp_dir.strip ();
+
+    }
+
+}