tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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java_cpp_strings.py (3172B)

      1 #!/usr/bin/env python3
      2 #
      3 # Copyright 2019 The Chromium Authors
      4 # Use of this source code is governed by a BSD-style license that can be
      5 # found in the LICENSE file.
      6 
      7 import argparse
      8 import os
      9 import re
     10 import sys
     11 import zipfile
     12 
     13 from util import build_utils
     14 from util import java_cpp_utils
     15 import action_helpers  # build_utils adds //build to sys.path.
     16 import zip_helpers
     17 
     18 
     19 class StringParserDelegate(java_cpp_utils.CppConstantParser.Delegate):
     20  STRING_RE = re.compile(r'\s*(?:inline )?const(?:expr)? char k(.*)\[\]\s*=')
     21  VALUE_RE = re.compile(r'\s*("(?:\"|[^"])*")\s*;')
     22 
     23  def ExtractConstantName(self, line):
     24    match = StringParserDelegate.STRING_RE.match(line)
     25    return match.group(1) if match else None
     26 
     27  def ExtractValue(self, line):
     28    match = StringParserDelegate.VALUE_RE.search(line)
     29    return match.group(1) if match else None
     30 
     31  def CreateJavaConstant(self, name, value, comments):
     32    return java_cpp_utils.JavaString(name, value, comments)
     33 
     34 
     35 def _GenerateOutput(template, source_paths, template_path, strings):
     36  description_template = """
     37    // This following string constants were inserted by
     38    //     {SCRIPT_NAME}
     39    // From
     40    //     {SOURCE_PATHS}
     41    // Into
     42    //     {TEMPLATE_PATH}
     43 
     44 """
     45  values = {
     46      'SCRIPT_NAME': java_cpp_utils.GetScriptName(),
     47      'SOURCE_PATHS': ',\n    //     '.join(source_paths),
     48      'TEMPLATE_PATH': template_path,
     49  }
     50  description = description_template.format(**values)
     51  native_strings = '\n\n'.join(x.Format() for x in strings)
     52 
     53  values = {
     54      'NATIVE_STRINGS': description + native_strings,
     55  }
     56  return template.format(**values)
     57 
     58 
     59 def _ParseStringFile(path):
     60  with open(path) as f:
     61    string_file_parser = java_cpp_utils.CppConstantParser(
     62        StringParserDelegate(), f.readlines())
     63  return string_file_parser.Parse()
     64 
     65 
     66 def _Generate(source_paths, template_path):
     67  with open(template_path) as f:
     68    lines = f.readlines()
     69 
     70  template = ''.join(lines)
     71  package, class_name = java_cpp_utils.ParseTemplateFile(lines)
     72  output_path = java_cpp_utils.GetJavaFilePath(package, class_name)
     73  strings = []
     74  for source_path in source_paths:
     75    strings.extend(_ParseStringFile(source_path))
     76 
     77  output = _GenerateOutput(template, source_paths, template_path, strings)
     78  return output, output_path
     79 
     80 
     81 def _Main(argv):
     82  parser = argparse.ArgumentParser()
     83 
     84  parser.add_argument('--srcjar',
     85                      required=True,
     86                      help='The path at which to generate the .srcjar file')
     87 
     88  parser.add_argument('--template',
     89                      required=True,
     90                      help='The template file with which to generate the Java '
     91                      'class. Must have "{NATIVE_STRINGS}" somewhere in '
     92                      'the template.')
     93 
     94  parser.add_argument(
     95      'inputs', nargs='+', help='Input file(s)', metavar='INPUTFILE')
     96  args = parser.parse_args(argv)
     97 
     98  with action_helpers.atomic_output(args.srcjar) as f:
     99    with zipfile.ZipFile(f, 'w', zipfile.ZIP_STORED) as srcjar:
    100      data, path = _Generate(args.inputs, args.template)
    101      zip_helpers.add_to_zip_hermetic(srcjar, path, data=data)
    102 
    103 
    104 if __name__ == '__main__':
    105  _Main(sys.argv[1:])