Remove tools/refactoring.

tools/refactoring/webrtc_reformat.py

-#!/usr/bin/python
-# Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
-#
-# Use of this source code is governed by a BSD-style license
-# that can be found in the LICENSE file in the root of the source
-# tree. An additional intellectual property rights grant can be found
-# in the file PATENTS.  All contributing project authors may
-# be found in the AUTHORS file in the root of the source tree.
-
-"""WebRTC reformat script.
-
-This script is used to reformat WebRTC code from the old code style to Google
-C++ code style. This script does not indent code; use clang-reformat-chrome.py
-as described in go/webrtc/engineering/reformatting-gips---google.
-"""
-
-__author__ = 'mflodman@webrtc.org (Magnus Flodman)'
-
-import fnmatch
-import os
-import re
-import subprocess
-import sys
-
-
-def LowerWord(obj):
-  """Helper for DeCamelCase."""
-  optional_last_letters = obj.group(3) or ''
-  return obj.group(1) + '_' + obj.group(2).lower() + optional_last_letters
-
-
-def DeCamelCase(text):
-  """De-camelize variable names.
-
-  This function will look at any stringLikeThis and format it in steps. The
-  sequence will be stringLikeThis -> string_likeThis -> string_like_this.
-  """
-  possible_tokens_before_vars = '[ _*\(\&\!\[]'
-  pattern = re.compile(r'(?<=' + possible_tokens_before_vars + ')' +
-                       # Match some lower-case characters
-                       '([a-z]+)' +
-                       # Don't match kFoo, !kFoo, [kFoo], etc
-                       '(?<!' + possible_tokens_before_vars + 'k)' +
-                       # Match some upper-case characters
-                       '([A-Z]+)([a-z])?')
-  while re.search(pattern, text):
-    text = re.sub(pattern, LowerWord, text)
-  return text
-
-
-def MoveUnderScore(text):
-  """Moves the underscore from beginning of variable name to the end."""
-  # TODO(mflodman) Replace \1 with ?-expression.
-  # We don't want to change macros and #defines though, so don't do anything
-  # if the first character is uppercase (normal variables shouldn't have that).
-  pattern = r'([ \*\!\&\(\[\]])_(?!_)(?![A-Z])(\w+)'
-  return re.sub(pattern, r'\1\2_', text)
-
-
-def PostfixToPrefixInForLoops(text):
-  """Converts x++ to ++x in the increment part of a for loop."""
-  pattern = r'(for \(.*;.*;) (\w+)\+\+\)'
-  return re.sub(pattern, r'\1++\2)', text)
-
-
-def SortIncludeHeaders(text, filename):
-  """Sorts all include headers in alphabetic order.
-
-  The file's own header goes first, followed by system headers and then
-  project headers. This function will exit if we detect any fancy #ifdef logic
-  among the includes - that's a lot harder to sort.
-
-  Args:
-    text: The file text.
-    filename: The file we are reformatting.
-
-  Returns:
-    The text with includes sorted.
-  """
-  # Get all includes in file.
-  include_pattern = re.compile('#include.+\n')
-  includes = re.findall(include_pattern, text)
-
-  # Sort system headers and project headers separately.
-  sys_includes = []
-  project_includes = []
-  self_include = ''
-  sys_pattern = re.compile('#include <')
-  h_filename, _ = os.path.splitext(os.path.basename(filename))
-
-  for item in includes:
-    if re.search(h_filename + '\.', item):
-      self_include = item
-    elif re.search(sys_pattern, item):
-      sys_includes.append(item)
-    else:
-      project_includes.append(item)
-
-  sys_includes = sorted(sys_includes)
-  project_includes = sorted(project_includes)
-  headers = (self_include + '\n' + ''.join(sys_includes) + '\n' +
-             ''.join(project_includes))
-
-  # Replace existing headers with the sorted string.
-  text_no_hdrs = re.sub(include_pattern, r'???', text)
-
-  # Insert sorted headers unless we detect #ifdefs right next to the headers.
-  if re.search(r'(#ifdef|#ifndef|#if).*\s*\?{3,}\s*#endif', text_no_hdrs):
-    print 'WARNING: Include headers not sorted in ' + filename
-    return text
-
-  return_text = re.sub(r'\?{3,}', headers, text_no_hdrs, 1)
-  if re.search(r'\?{3,}', text_no_hdrs):
-    # Remove possible remaining ???.
-    return_text = re.sub(r'\?{3,}', r'', return_text)
-
-  return return_text
-
-
-def AddPath(match):
-  """Helper for adding file path for WebRTC header files, ignoring other."""
-  file_to_examine = match.group(1) + '.h'
-  # TODO(mflodman) Use current directory and find webrtc/.
-  for path, _, files in os.walk('./webrtc'):
-    for filename in files:
-      if fnmatch.fnmatch(filename, file_to_examine):
-        path_name = os.path.join(path, filename).replace('./', '')
-        return '#include "%s"\n' % path_name
-
-  # No path found, return original string.
-  return '#include "'+ file_to_examine + '"\n'
-
-
-def AddHeaderPath(text):
-  """Add path to all included header files that have no path yet."""
-  headers = re.compile('#include "(.+).h"\n')
-  return re.sub(headers, AddPath, text)
-
-
-def AddWebrtcToOldSrcRelativePath(match):
-  file_to_examine = match.group(1) + '.h'
-  path, filename = os.path.split(file_to_examine)
-  dirs_in_webrtc = [name for name in os.listdir('./webrtc')
-                    if os.path.isdir(os.path.join('./webrtc', name))]
-  for dir_in_webrtc in dirs_in_webrtc:
-    if path.startswith(dir_in_webrtc):
-      return '#include "%s"\n' % os.path.join('webrtc', path, filename)
-  return '#include "%s"\n' % file_to_examine
-
-def AddWebrtcPrefixToOldSrcRelativePaths(text):
-  """For all paths starting with for instance video_engine, add webrtc/."""
-  headers = re.compile('#include "(.+).h"\n')
-  return re.sub(headers, AddWebrtcToOldSrcRelativePath, text)
-
-
-def FixIncludeGuards(text, file_name):
-  """Change include guard according to the stantard."""
-  # Remove a possible webrtc/ from  the path.
-  file_name = re.sub(r'(webrtc\/)(.+)', r'\2', file_name)
-  new_guard = 'WEBRTC_' + file_name
-  new_guard = new_guard.upper()
-  new_guard = re.sub(r'([/\.])', r'_', new_guard)
-  new_guard += '_'
-
-  text = re.sub(r'#ifndef WEBRTC_.+\n', r'#ifndef ' + new_guard + '\n', text, 1)
-  text = re.sub(r'#define WEBRTC_.+\n', r'#define ' + new_guard + '\n', text, 1)
-  text = re.sub(r'#endif *\/\/ *WEBRTC_.+\n', r'#endif  // ' + new_guard + '\n',
-                text, 1)
-
-  return text
-
-
-def SaveFile(filename, text):
-  os.remove(filename)
-  f = open(filename, 'w')
-  f.write(text)
-  f.close()
-
-
-def main():
-  args = sys.argv[1:]
-  if not args:
-    print 'Usage: %s <filename>' % sys.argv[0]
-    sys.exit(1)
-
-  for filename in args:
-    f = open(filename)
-    text = f.read()
-    f.close()
-
-    text = DeCamelCase(text)
-    text = MoveUnderScore(text)
-    text = PostfixToPrefixInForLoops(text)
-    text = AddHeaderPath(text)
-    text = AddWebrtcPrefixToOldSrcRelativePaths(text)
-    text = SortIncludeHeaders(text, filename)
-
-    # Remove the original file and re-create it with the reformatted content.
-    SaveFile(filename, text)
-
-    if filename.endswith('.h'):
-      f = open(filename)
-      text = f.read()
-      f.close()
-      text = FixIncludeGuards(text, filename)
-      SaveFile(filename, text)
-
-    print filename + ' done.'
-
-
-if __name__ == '__main__':
-  main()