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116 lines
3.7 KiB
Python
Executable File
116 lines
3.7 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2013 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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"""Aggregates EMMA coverage files to produce html output."""
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import fnmatch
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import json
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import optparse
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import os
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import sys
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import devil_chromium
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from devil.utils import cmd_helper
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from pylib import constants
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from pylib.constants import host_paths
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def _GetFilesWithExt(root_dir, ext):
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"""Gets all files with a given extension.
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Args:
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root_dir: Directory in which to search for files.
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ext: Extension to look for (including dot)
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Returns:
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A list of absolute paths to files that match.
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"""
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files = []
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for root, _, filenames in os.walk(root_dir):
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basenames = fnmatch.filter(filenames, '*.' + ext)
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files.extend([os.path.join(root, basename)
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for basename in basenames])
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return files
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def main():
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option_parser = optparse.OptionParser()
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option_parser.add_option('--output', help='HTML output filename.')
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option_parser.add_option('--coverage-dir', default=None,
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help=('Root of the directory in which to search for '
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'coverage data (.ec) files.'))
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option_parser.add_option('--metadata-dir', default=None,
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help=('Root of the directory in which to search for '
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'coverage metadata (.em) files.'))
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option_parser.add_option('--cleanup', action='store_true',
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help=('If set, removes coverage files generated at '
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'runtime.'))
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options, _ = option_parser.parse_args()
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devil_chromium.Initialize()
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if not (options.coverage_dir and options.metadata_dir and options.output):
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option_parser.error('One or more mandatory options are missing.')
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coverage_files = _GetFilesWithExt(options.coverage_dir, 'ec')
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metadata_files = _GetFilesWithExt(options.metadata_dir, 'em')
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# Filter out zero-length files. These are created by emma_instr.py when a
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# target has no classes matching the coverage filter.
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metadata_files = [f for f in metadata_files if os.path.getsize(f)]
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print 'Found coverage files: %s' % str(coverage_files)
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print 'Found metadata files: %s' % str(metadata_files)
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sources = []
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for f in metadata_files:
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sources_file = os.path.splitext(f)[0] + '_sources.txt'
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with open(sources_file, 'r') as sf:
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sources.extend(json.load(sf))
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# Source paths should be passed to EMMA in a way that the relative file paths
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# reflect the class package name.
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PARTIAL_PACKAGE_NAMES = ['com/google', 'org/chromium', 'com/chrome']
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fixed_source_paths = set()
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for path in sources:
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for partial in PARTIAL_PACKAGE_NAMES:
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if partial in path:
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fixed_path = os.path.join(
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host_paths.DIR_SOURCE_ROOT, path[:path.index(partial)])
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fixed_source_paths.add(fixed_path)
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break
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sources = list(fixed_source_paths)
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input_args = []
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for f in coverage_files + metadata_files:
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input_args.append('-in')
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input_args.append(f)
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output_args = ['-Dreport.html.out.file', options.output,
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'-Dreport.html.out.encoding', 'UTF-8']
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source_args = ['-sp', ','.join(sources)]
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exit_code = cmd_helper.RunCmd(
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['java', '-cp',
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os.path.join(constants.ANDROID_SDK_ROOT, 'tools', 'lib', 'emma.jar'),
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'emma', 'report', '-r', 'html']
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+ input_args + output_args + source_args)
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if options.cleanup:
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for f in coverage_files:
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os.remove(f)
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# Command tends to exit with status 0 when it actually failed.
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if not exit_code and not os.path.exists(options.output):
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exit_code = 1
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return exit_code
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if __name__ == '__main__':
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sys.exit(main())
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