chrome/test/chromedriver/cpp_source.py

   1 # Copyright 2013 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 """Writes C++ header/cc source files for embedding resources into C++."""
   6
   7 import os
   8
   9
  10 def WriteSource(base_name,
  11                 dir_from_src,
  12                 output_dir,
  13                 global_string_map):
  14   """Writes C++ header/cc source files for the given map of string variables.
  15
  16   Args:
  17       base_name: The basename of the file, without the extension.
  18       dir_from_src: Path from src to the directory that will contain the file,
  19           using forward slashes.
  20       output_dir: Directory to output the sources to.
  21       global_string_map: Map of variable names to their string values. These
  22           variables will be available as globals.
  23   """
  24   copyright = '\n'.join([
  25       '// Copyright 2013 The Chromium Authors. All rights reserved.',
  26       '// Use of this source code is governed by a BSD-style license that '
  27           'can be',
  28       '// found in the LICENSE file.'])
  29
  30   # Write header file.
  31   externs = []
  32   for name in global_string_map.iterkeys():
  33     externs += ['extern const char %s[];' % name]
  34
  35   temp = '_'.join(dir_from_src.split('/') + [base_name])
  36   define = temp.upper() + '_H_'
  37   header = '\n'.join([
  38       copyright,
  39       '',
  40       '#ifndef ' + define,
  41       '#define ' + define,
  42       '',
  43       '\n'.join(externs),
  44       '',
  45       '#endif  // ' + define])
  46   header += '\n'
  47
  48   with open(os.path.join(output_dir, base_name + '.h'), 'w') as f:
  49     f.write(header)
  50
  51   # Write cc file.
  52   def EscapeLine(line):
  53     return line.replace('\\', '\\\\').replace('"', '\\"')
  54
  55   definitions = []
  56   for name, contents in global_string_map.iteritems():
  57     lines = []
  58     if '\n' not in contents:
  59       lines = ['    "%s"' % EscapeLine(contents)]
  60     else:
  61       for line in contents.split('\n'):
  62         lines += ['    "%s\\n"' % EscapeLine(line)]
  63     definitions += ['const char %s[] =\n%s;' % (name, '\n'.join(lines))]
  64
  65   cc = '\n'.join([
  66       copyright,
  67       '',
  68       '#include "%s"' % (dir_from_src + '/' + base_name + '.h'),
  69       '',
  70       '\n'.join(definitions)])
  71   cc += '\n'
  72
  73   with open(os.path.join(output_dir, base_name + '.cc'), 'w') as f:
  74     f.write(cc)