1 files changed, 100 insertions, 0 deletions
diff --git a/webkit/build/rule_binding.py b/webkit/build/rule_binding.py
new file mode 100755
index 0000000..96040ee
--- /dev/null
+++ b/webkit/build/rule_binding.py
@@ -0,0 +1,100 @@
+#!/usr/bin/python
+
+# Copyright (c) 2009 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.
+
+# usage: rule_binding.py INPUT CPPDIR HDIR -- INPUTS -- OPTIONS
+#
+# INPUT is an IDL file, such as Whatever.idl.
+#
+# CPPDIR is the directory into which V8Whatever.cpp will be placed.  HDIR is
+# the directory into which V8Whatever.h will be placed.
+#
+# The first item in INPUTS is the path to generate-bindings.pl.  Remaining
+# items in INPUTS are used to build the Perl module include path.
+#
+# OPTIONS are passed as-is to generate-bindings.pl as additional arguments.
+
+
+import errno
+import os
+import shutil
+import subprocess
+import sys
+
+
+def SplitArgsIntoSections(args):
+  sections = []
+  while len(args) > 0:
+    if not '--' in args:
+      # If there is no '--' left, everything remaining is an entire section.
+      dashes = len(args)
+    else:
+      dashes = args.index('--')
+
+    sections.append(args[:dashes])
+
+    # Next time through the loop, look at everything after this '--'.
+    if dashes + 1 == len(args):
+      # If the '--' is at the end of the list, we won't come back through the
+      # loop again.  Add an empty section now corresponding to the nothingness
+      # following the final '--'.
+      args = []
+      sections.append(args)
+    else:
+      args = args[dashes + 1:]
+
+  return sections
+
+
+def main(args):
+  sections = SplitArgsIntoSections(args[1:])
+  assert len(sections) == 3
+  (base, inputs, options) = sections
+
+  assert len(base) == 3
+  input = base[0]
+  cppdir = base[1]
+  hdir = base[2]
+
+  assert len(inputs) > 1
+  generate_bindings = inputs[0]
+  perl_modules = inputs[1:]
+
+  include_dirs = []
+  for perl_module in perl_modules:
+    include_dir = os.path.dirname(perl_module)
+    if not include_dir in include_dirs:
+      include_dirs.append(include_dir)
+
+  # Build up the command.
+  command = ['perl', '-w']
+  for include_dir in include_dirs:
+    command.extend(['-I', include_dir])
+  command.append(generate_bindings)
+  command.extend(options)
+  command.extend(['--outputdir', cppdir, input])
+
+  # Do it.  check_call is new in 2.5, so simulate its behavior with call and
+  # assert.
+  return_code = subprocess.call(command)
+  assert return_code == 0
+
+  # Both the .cpp and .h were generated in cppdir, but if hdir is different,
+  # the .h needs to move.  Copy it instead of using os.rename for maximum
+  # portability in all cases.
+  if cppdir != hdir:
+    input_basename = os.path.basename(input)
+    (root, ext) = os.path.splitext(input_basename)
+    hname = 'V8%s.h' % root
+    hsrc = os.path.join(cppdir, hname)
+    hdst = os.path.join(hdir, hname)
+    shutil.copyfile(hsrc, hdst)
+    os.unlink(hsrc)
+
+  return return_code
+
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))