Sort databases by name if their languages are the same (#3055)

Author: shati-patel

extensions/ql-vscode/CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## [UNRELEASED]
 
+- The "Sort by Language" action in the databases view now sorts by name within each language. [#3055](https://github.com/github/vscode-codeql/pull/3055)
+
 ## 1.9.4 - 6 November 2023
 
 No user facing changes.

extensions/ql-vscode/src/databases/local-databases-ui.ts

@@ -158,9 +158,17 @@ class DatabaseTreeDataProvider
           case SortOrder.NameDesc:
             return db2.name.localeCompare(db1.name, env.language);
           case SortOrder.LanguageAsc:
-            return db1.language.localeCompare(db2.language, env.language);
+            return (
+              db1.language.localeCompare(db2.language, env.language) ||
+              // If the languages are the same, sort by name
+              db1.name.localeCompare(db2.name, env.language)
+            );
           case SortOrder.LanguageDesc:
-            return db2.language.localeCompare(db1.language, env.language);
+            return (
+              db2.language.localeCompare(db1.language, env.language) ||
+              // If the languages are the same, sort by name
+              db2.name.localeCompare(db1.name, env.language)
+            );
           case SortOrder.DateAddedAsc:
             return (db1.dateAdded || 0) - (db2.dateAdded || 0);
           case SortOrder.DateAddedDesc: