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-rw-r--r--third_party/libwebrtc/build/config/ios/hardlink.py71
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()