Cooooookies!!!

src/fileOps.js

@@ -0,0 +1,29 @@
+const { Gio, GLib } = imports.gi;
+const Debug = imports.src.debug;
+const Misc = imports.src.misc;
+
+const { debug } = Debug;
+
+Gio._promisify(Gio._LocalFilePrototype, 'make_directory_async', 'make_directory_finish');
+
+function createCacheDirPromise()
+{
+    return new Promise(async (resolve, reject) => {
+        const cacheDir = Gio.File.new_for_path(
+            GLib.get_user_cache_dir() + '/' + Misc.appId
+        );
+
+        if(cacheDir.query_exists(null))
+            return resolve(cacheDir);
+
+        const dirCreated = await cacheDir.make_directory_async(
+            GLib.PRIORITY_DEFAULT,
+            null,
+        ).catch(debug);
+
+        if(!dirCreated)
+            return reject(new Error(`could not create dir: ${cacheDir.get_path()}`));
+
+        resolve(cacheDir);
+    });
+}