Add close all folders except this context item

data/io.elementary.code.appdata.xml.in

@@ -46,6 +46,18 @@
     </ul>
   </description>
   <releases>
+    <release version="3.3.0" date="2020-01-16">
+      <description>
+        <p>New features:</p>
+        <ul>
+          <li>New "Close Other Folders" menu item to help clean up your sidebar</li>
+        </ul>
+        <p>Other updates:</p>
+        <ul>
+          <li>Updated translations</li>
+        </ul>
+      </description>
+    </release>
     <release version="3.2.0" date="2020-01-09">
       <description>
         <p>New features:</p>

src/FolderManager/FileView.vala

@@ -143,6 +143,16 @@ namespace Scratch.FolderManager {
                 root.remove (folder_root);
                 write_settings ();
             });
+
+            folder_root.close_all_except.connect (() => {
+                foreach (var child in root.children) {
+                    if (child != folder_root) {
+                        root.remove (child);
+                    }
+                }
+
+                write_settings ();
+            });
         }
 
         private bool is_open (File folder) {

src/FolderManager/ProjectFolderItem.vala

@@ -23,6 +23,7 @@ namespace Scratch.FolderManager {
         private const uint GIT_UPDATE_RATE_LIMIT = 300;
 
         public signal void closed ();
+        public signal void close_all_except ();
 
         // Static source IDs for each instance of a top level folder, ensures we don't check for git updates too much
         private static Gee.HashMap<string, uint> git_update_timer_ids;
@@ -95,6 +96,10 @@ namespace Scratch.FolderManager {
             var close_item = new Gtk.MenuItem.with_label (_("Close Folder"));
             close_item.activate.connect (() => { closed (); });
 
+            var close_all_except_item = new Gtk.MenuItem.with_label (_("Close Other Folders"));
+            close_all_except_item.activate.connect (() => { close_all_except (); });
+            close_all_except_item.sensitive = view.root.children.size > 1;
+
             var delete_item = new Gtk.MenuItem.with_label (_("Move to Trash"));
             delete_item.activate.connect (() => {
                 closed ();
@@ -113,6 +118,7 @@ namespace Scratch.FolderManager {
 
             var menu = new Gtk.Menu ();
             menu.append (close_item);
+            menu.append (close_all_except_item);
             menu.append (create_submenu_for_open_in (info, file_type));
             menu.append (create_submenu_for_new ());
             menu.append (delete_item);