From 60b41c357bb232eb3b26037aff7c745d23b31291 Mon Sep 17 00:00:00 2001
From: Renan Castro <renanccastro@gmail.com>
Date: Thu, 26 Nov 2020 18:04:06 -0300
Subject: [PATCH] Update Typescript to 4.1.2 - fix breaking changes

---
 tools/fs/files.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/fs/files.ts b/tools/fs/files.ts
index 3e4201a216..b91a5a6799 100644
--- a/tools/fs/files.ts
+++ b/tools/fs/files.ts
@@ -135,7 +135,7 @@ export function findPackageDir(filepath: string) {
 // truly unexpected happens). The result value is a string when a Git
 // revision was successfully resolved, or undefined otherwise.
 export function findGitCommitHash(path: string) {
-  return new Promise<string>(resolve => {
+  return new Promise<string|void>(resolve => {
     const appDir = findAppDir(path);
     if (appDir) {
       execFile("git", ["rev-parse", "HEAD"], {