sync bundling progress between Metro cli and app hints (#55654)

Summary:
Pull Request resolved: #55654

Changelog: [iOS][Fixed] sync bundling progress between Metro cli and app hints

Reviewed By: hoxyq

Differential Revision: D93737736

fbshipit-source-id: b468523758a31ce2c1cf96c478bd60915ff184b7

Author: vzaidman

packages/react-native/React/Base/RCTJavaScriptLoader.h

@@ -33,6 +33,7 @@ NS_ENUM(NSInteger){
 @property (nonatomic, copy) NSString *status;
 @property (strong, nonatomic) NSNumber *done;
 @property (strong, nonatomic) NSNumber *total;
+@property (strong, nonatomic) NSNumber *percent;
 
 @end
 

packages/react-native/React/Base/RCTJavaScriptLoader.mm

@@ -53,8 +53,9 @@ - (NSString *)description
 {
   NSMutableString *desc = [NSMutableString new];
   [desc appendString:_status ?: @"Bundling"];
-
-  if ([_total integerValue] > 0 && [_done integerValue] > [_total integerValue]) {
+  if (_percent != nil) {
+    [desc appendFormat:@" %ld%%", (long)[_percent integerValue]];
+  } else if ([_total integerValue] > 0 && [_done integerValue] > [_total integerValue]) {
     [desc appendFormat:@" %ld%%", (long)100];
   } else if ([_total integerValue] > 0) {
     [desc appendFormat:@" %ld%%", (long)(100 * [_done integerValue] / [_total integerValue])];
@@ -348,6 +349,9 @@ static void attemptAsynchronousLoadOfBundleAtURL(
   progress.status = info[@"status"];
   progress.done = info[@"done"];
   progress.total = info[@"total"];
+  if (info[@"percent"] != nil) {
+    progress.percent = info[@"percent"];
+  }
   return progress;
 }