Revert of [Mac/iOS/GN] Use rsync in copy_bundle_data instead of shutil.copytree.

build/toolchain/mac/copy_bundle_data.py

Index: build/toolchain/mac/copy_bundle_data.py
diff --git a/build/toolchain/mac/copy_bundle_data.py b/build/toolchain/mac/copy_bundle_data.py
index b31883b20b3951c83dc6c614d7b14279c606f790..976591c08ee309a1df86d71d3bd6ce66d3865edc 100644
--- a/build/toolchain/mac/copy_bundle_data.py
+++ b/build/toolchain/mac/copy_bundle_data.py
@@ -3,11 +3,9 @@
 # found in the LICENSE file.
 
 import argparse
-import errno
 import os
 import shutil
 import sys
-import subprocess
 
 
 def detect_encoding(data, default_encoding='UTF-8'):
@@ -66,27 +64,25 @@
     source: string, path to the source file
     dest: string, path to the destination file
   """
-  try:
-    shutil.rmtree(dest)
-  except OSError as e:
-    if e.errno == errno.ENOENT:
-      pass
-    elif e.errno == errno.ENOTDIR:
-      os.unlink(dest)
-    else:
-      raise
+  if os.path.isdir(source):
+    if os.path.exists(dest):
+      shutil.rmtree(dest)
+    # Copy tree.
+    # TODO(thakis): This copies file attributes like mtime, while the
+    # single-file branch below doesn't. This should probably be changed to
+    # be consistent with the single-file branch.
+    shutil.copytree(source, dest, symlinks=True)
+    return
+
+  if os.path.exists(dest):
+    os.unlink(dest)
 
   _, extension = os.path.splitext(source)
   if extension == '.strings':
     copy_strings_file(source, dest)
     return
 
-  # Strip trailing slashes on the source so rsync copies the source as a
-  # directory.
-  source = source.rstrip('/')
-
-  subprocess.check_call(
-      ['rsync', '--recursive', '--perms', '--links', source, dest])
+  shutil.copy(source, dest)
 
 
 def main():