- support for multi workspace folders

- mock fiddle for offline testing
- redesigned to support files closing
- support for deleted files

source-control-sample/src/util.ts

@@ -0,0 +1,9 @@
+export function firstIndex<T>(array: T[], fn: (t: T) => boolean): number {
+	for (let i = 0; i < array.length; i++) {
+		if (fn(array[i])) {
+			return i;
+		}
+	}
+
+	return -1;
+}