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# Copyright 2013 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.
"""Writes C++ header/cc source files for embedding resources into C++."""
import datetime
import os
import sys
def WriteSource(base_name,
dir_from_src,
output_dir,
global_string_map):
"""Writes C++ header/cc source files for the given map of string variables.
Args:
base_name: The basename of the file, without the extension.
dir_from_src: Path from src to the directory that will contain the file,
using forward slashes.
output_dir: Directory to output the sources to.
global_string_map: Map of variable names to their string values. These
variables will be available as globals.
"""
copyright_header_template = (
'// Copyright %s The Chromium Authors. All rights reserved.\n'
'// Use of this source code is governed by a BSD-style license '
'that can be\n'
'// found in the LICENSE file.\n\n'
'// This file was generated at (%s) by running:\n'
'// %s')
copyright_header = copyright_header_template % (
datetime.date.today().year,
datetime.datetime.now().isoformat(' '),
' '.join(sys.argv))
# Write header file.
externs = []
for name in global_string_map.iterkeys():
externs += ['extern const char %s[];' % name]
temp = '_'.join(dir_from_src.split('/') + [base_name])
define = temp.upper() + '_H_'
header = '\n'.join([
copyright_header,
'',
'#ifndef ' + define,
'#define ' + define,
'',
'\n'.join(externs),
'',
'#endif // ' + define])
header += '\n'
with open(os.path.join(output_dir, base_name + '.h'), 'w') as f:
f.write(header)
# Write cc file.
def EscapeLine(line):
return line.replace('\\', '\\\\').replace('"', '\\"')
definitions = []
for name, contents in global_string_map.iteritems():
lines = []
if '\n' not in contents:
lines = [' "%s"' % EscapeLine(contents)]
else:
for line in contents.split('\n'):
lines += [' "%s\\n"' % EscapeLine(line)]
definitions += ['const char %s[] =\n%s;' % (name, '\n'.join(lines))]
cc = '\n'.join([
copyright_header,
'',
'#include "%s"' % (dir_from_src + '/' + base_name + '.h'),
'',
'\n'.join(definitions)])
cc += '\n'
with open(os.path.join(output_dir, base_name + '.cc'), 'w') as f:
f.write(cc)
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