e6c6bb38f0
Bug: 1187279 Change-Id: Ie54588498a0674479492636003e4f1ba7663aba0 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2852118 Reviewed-by: Mohamed Heikal <mheikal@chromium.org> Commit-Queue: Andrew Grieve <agrieve@chromium.org> Cr-Commit-Position: refs/heads/master@{#876775}
111 lines
3.3 KiB
Python
Executable File
111 lines
3.3 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright 2020 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import argparse
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import os
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import re
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import sys
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import zipfile
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from util import build_utils
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from util import java_cpp_utils
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class FeatureParserDelegate(java_cpp_utils.CppConstantParser.Delegate):
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# Ex. 'const base::Feature kConstantName{"StringNameOfTheFeature", ...};'
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# would parse as:
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# ExtractConstantName() -> 'ConstantName'
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# ExtractValue() -> '"StringNameOfTheFeature"'
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FEATURE_RE = re.compile(r'\s*const (?:base::)?Feature\s+k(\w+)\s*(?:=\s*)?{')
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VALUE_RE = re.compile(r'\s*("(?:\"|[^"])*")\s*,')
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def ExtractConstantName(self, line):
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match = FeatureParserDelegate.FEATURE_RE.match(line)
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return match.group(1) if match else None
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def ExtractValue(self, line):
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match = FeatureParserDelegate.VALUE_RE.search(line)
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return match.group(1) if match else None
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def CreateJavaConstant(self, name, value, comments):
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return java_cpp_utils.JavaString(name, value, comments)
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def _GenerateOutput(template, source_paths, template_path, features):
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description_template = """
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// This following string constants were inserted by
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// {SCRIPT_NAME}
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// From
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// {SOURCE_PATHS}
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// Into
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// {TEMPLATE_PATH}
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"""
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values = {
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'SCRIPT_NAME': java_cpp_utils.GetScriptName(),
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'SOURCE_PATHS': ',\n // '.join(source_paths),
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'TEMPLATE_PATH': template_path,
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}
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description = description_template.format(**values)
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native_features = '\n\n'.join(x.Format() for x in features)
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values = {
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'NATIVE_FEATURES': description + native_features,
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}
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return template.format(**values)
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def _ParseFeatureFile(path):
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with open(path) as f:
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feature_file_parser = java_cpp_utils.CppConstantParser(
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FeatureParserDelegate(), f.readlines())
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return feature_file_parser.Parse()
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def _Generate(source_paths, template_path):
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with open(template_path) as f:
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lines = f.readlines()
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template = ''.join(lines)
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package, class_name = java_cpp_utils.ParseTemplateFile(lines)
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output_path = java_cpp_utils.GetJavaFilePath(package, class_name)
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features = []
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for source_path in source_paths:
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features.extend(_ParseFeatureFile(source_path))
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output = _GenerateOutput(template, source_paths, template_path, features)
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return output, output_path
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def _Main(argv):
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parser = argparse.ArgumentParser()
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parser.add_argument('--srcjar',
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required=True,
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help='The path at which to generate the .srcjar file')
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parser.add_argument('--template',
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required=True,
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help='The template file with which to generate the Java '
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'class. Must have "{NATIVE_FEATURES}" somewhere in '
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'the template.')
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parser.add_argument('inputs',
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nargs='+',
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help='Input file(s)',
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metavar='INPUTFILE')
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args = parser.parse_args(argv)
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with build_utils.AtomicOutput(args.srcjar) as f:
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with zipfile.ZipFile(f, 'w', zipfile.ZIP_STORED) as srcjar:
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data, path = _Generate(args.inputs, args.template)
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build_utils.AddToZipHermetic(srcjar, path, data=data)
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if __name__ == '__main__':
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_Main(sys.argv[1:])
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