Add SkCodec, including PNG implementation.

gyp/copy_file.py

Index: gyp/copy_file.py
diff --git a/gyp/copy_file.py b/gyp/copy_file.py
new file mode 100644
index 0000000000000000000000000000000000000000..7268bf216ffbeafed37f81717c70f52bc629e477
--- /dev/null
+++ b/gyp/copy_file.py
@@ -0,0 +1,39 @@
+#!/usr/bin/python
+
+# Copyright 2015 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""
+Copy a file.
+"""
+
+import argparse
+import os
+import shutil
+
+if __name__ == '__main__':
+  parser = argparse.ArgumentParser()
+  parser.add_argument('src', help='File to copy.')
+  parser.add_argument('dst', help='Location to copy to.')
+  args = parser.parse_args()
+
+  src = os.path.abspath(os.path.join(os.getcwd(), args.src))
+  dst = os.path.abspath(os.path.join(os.getcwd(), args.dst))
+
+  print 'Copying from %s to %s' % (src, dst)
+
+  src_dir = os.path.dirname(src)
+  if not os.path.exists(src_dir):
+    raise AssertionError('src directory %s does not exist!' % src_dir)
+
+  if not os.path.exists(src):
+    raise AssertionError('file to copy %s does not exist' % src)
+
+  dst_dir = os.path.dirname(dst)
+  if not os.path.exists(dst_dir):
+    print 'dst directory %s does not exist! creating it!' % dst_dir
+    os.makedirs(dst_dir)
+
+  shutil.copyfile(src, dst)