extensionDownloader: Only check server if there's something to update

checkForUpdates() will currently always query the server for updates,
even when passing an empty vardict of installed extensions. We know
there won't be any updates in that case, so avoid a pointless network
request.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1100

diff --git a/js/ui/extensionDownloader.js b/js/ui/extensionDownloader.js
index 5f6e74b09daad87e30feb105826de6427d280475..be7426be098214d4d4a9c1e199919ea6b521d1a4 100644 (file)
--- a/js/ui/extensionDownloader.js
+++ b/js/ui/extensionDownloader.js
@@ -127,6 +127,9 @@ function checkForUpdates() {
         metadatas[uuid] = extension.metadata;
     });
 
+    if (Object.keys(metadatas).length === 0)
+        return; // nothing to update
+
     let versionCheck = global.settings.get_boolean(
         'disable-extension-version-validation');
     let params = {