1 files changed, 71 insertions, 0 deletions
diff --git a/third_party/libwebrtc/build/config/ios/hardlink.py b/third_party/libwebrtc/build/config/ios/hardlink.py
new file mode 100644
index 0000000000..38f60d4013
--- /dev/null
+++ b/third_party/libwebrtc/build/config/ios/hardlink.py
@@ -0,0 +1,71 @@
+# Copyright 2017 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Recursively create hardlink to target named output."""
+
+
+import argparse
+import os
+import shutil
+
+
+def CreateHardlinkHelper(target, output):
+  """Recursively create a hardlink named output pointing to target.
+
+  Args:
+    target: path to an existing file or directory
+    output: path to the newly created hardlink
+
+  This function assumes that output does not exists but that the parent
+  directory containing output does. If those conditions are false, then
+  the function will fails with an exception corresponding to an OS error.
+  """
+  if os.path.islink(target):
+    os.symlink(os.readlink(target), output)
+  elif not os.path.isdir(target):
+    try:
+      os.link(target, output)
+    except:
+      shutil.copy(target, output)
+  else:
+    os.mkdir(output)
+    for name in os.listdir(target):
+      CreateHardlinkHelper(
+          os.path.join(target, name),
+          os.path.join(output, name))
+
+
+def CreateHardlink(target, output):
+  """Recursively create a hardlink named output pointing to target.
+
+  Args:
+    target: path to an existing file or directory
+    output: path to the newly created hardlink
+
+  If output already exists, it is first removed. In all cases, the
+  parent directory containing output is created.
+  """
+  if os.path.isdir(output):
+    shutil.rmtree(output)
+  elif os.path.exists(output):
+    os.unlink(output)
+
+  parent_dir = os.path.dirname(os.path.abspath(output))
+  if not os.path.isdir(parent_dir):
+    os.makedirs(parent_dir)
+
+  CreateHardlinkHelper(target, output)
+
+
+def Main():
+  parser = argparse.ArgumentParser()
+  parser.add_argument('target', help='path to the file or directory to link to')
+  parser.add_argument('output', help='name of the hardlink to create')
+  args = parser.parse_args()
+
+  CreateHardlink(args.target, args.output)
+
+
+if __name__ == '__main__':
+  Main()