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#!/usr/bin/env python3
#
# Copyright 2019 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import argparse
import re
import sys
import zipfile
from util import build_utils # pylint: disable=unused-import
from util import java_cpp_utils
import action_helpers # build_utils adds //build to sys.path.
import zip_helpers
class StringParserDelegate(java_cpp_utils.CppConstantParser.Delegate):
STRING_RE = re.compile(r'\s*(?:inline )?const(?:expr)? char k(.*)\[\]\s*=')
VALUE_RE = re.compile(r'\s*("(?:\"|[^"])*")\s*;')
def ExtractConstantName(self, line):
match = StringParserDelegate.STRING_RE.match(line)
return match.group(1) if match else None
def ExtractValue(self, line):
match = StringParserDelegate.VALUE_RE.search(line)
return match.group(1) if match else None
def CreateJavaConstant(self, name, value, comments):
return java_cpp_utils.JavaString(name, value, comments)
def _GenerateOutput(template, source_paths, strings):
description_template = """
// This following string constants were inserted by
// {SCRIPT_NAME}
// From
// {SOURCE_PATHS}
"""
values = {
'SCRIPT_NAME': java_cpp_utils.GetScriptName(),
'SOURCE_PATHS': ',\n // '.join(source_paths),
}
description = description_template.format(**values)
native_strings = '\n\n'.join(x.Format() for x in strings)
# TODO(agrieve): Remove {{ and }} from input templates.
template = template.replace('{{', '{').replace('}}', '}')
return template.replace('{NATIVE_STRINGS}', description + native_strings)
def _ParseStringFile(path):
with open(path, encoding='utf-8') as f:
string_file_parser = java_cpp_utils.CppConstantParser(
StringParserDelegate(), f.readlines())
return string_file_parser.Parse()
def _Generate(source_paths, template):
package, class_name = java_cpp_utils.ParseTemplateFile(template)
output_path = java_cpp_utils.GetJavaFilePath(package, class_name)
strings = []
for source_path in source_paths:
strings.extend(_ParseStringFile(source_path))
output = _GenerateOutput(template, source_paths, strings)
return output, output_path
def _Main(argv):
parser = argparse.ArgumentParser()
parser.add_argument('--srcjar',
required=True,
help='The path at which to generate the .srcjar file')
parser.add_argument('--template',
help='The template file with which to generate the Java '
'class. Must have "{NATIVE_STRINGS}" somewhere in '
'the template.')
parser.add_argument('--class-name', help='FQN of Java class to generate')
parser.add_argument(
'inputs', nargs='+', help='Input file(s)', metavar='INPUTFILE')
args = parser.parse_args(argv)
if args.template:
with open(args.template, encoding='utf-8') as f:
template = f.read()
else:
template = java_cpp_utils.CreateDefaultTemplate(args.class_name,
'{NATIVE_STRINGS}')
with action_helpers.atomic_output(args.srcjar) as f:
with zipfile.ZipFile(f, 'w', zipfile.ZIP_STORED) as srcjar:
data, path = _Generate(args.inputs, template)
zip_helpers.add_to_zip_hermetic(srcjar, path, data=data)
if __name__ == '__main__':
_Main(sys.argv[1:])
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