1 files changed, 26 insertions, 0 deletions
diff --git a/third_party/libwebrtc/build/config/fuchsia/extend_fvm.py b/third_party/libwebrtc/build/config/fuchsia/extend_fvm.py
new file mode 100644
index 0000000000..44e5ee30e1
--- /dev/null
+++ b/third_party/libwebrtc/build/config/fuchsia/extend_fvm.py
@@ -0,0 +1,26 @@
+# Copyright 2018 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.
+
+"""Copies a FVM file and extends it by a specified amount.
+
+Arg #1: path to 'fvm'.
+    #2: the path to the source fvm.blk.
+    #3: the path that the extended FVM file will be written to.
+    #4: the additional number of bytes to grow fvm.blk by."""
+
+import os
+import shutil
+import subprocess
+import sys
+
+def ExtendFVM(fvm_tool_path, src_path, dest_path, delta):
+  old_size = os.path.getsize(src_path)
+  new_size = old_size + int(delta)
+  shutil.copyfile(src_path, dest_path)
+  subprocess.check_call([fvm_tool_path, dest_path, 'extend', '--length',
+                         str(new_size)])
+  return 0
+
+if __name__ == '__main__':
+  sys.exit(ExtendFVM(*sys.argv[1:]))