| #!/usr/bin/env python |
| # Copyright 2014 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. |
| |
| """Updates NetErrorCodes enum in histograms.xml file with values read |
| from net_error_list.h. |
| |
| If the file was pretty-printed, the updated version is pretty-printed too. |
| """ |
| |
| import os.path |
| import re |
| import sys |
| |
| sys.path.append(os.path.join(os.path.dirname(__file__), '..', 'common')) |
| import path_util |
| |
| import update_histogram_enum |
| |
| NET_ERROR_LIST_PATH = 'net/base/net_error_list.h' |
| |
| POSITIVE_ERROR_REGEX = re.compile(r'^NET_ERROR\(([\w]+), -([0-9]+)\)') |
| NEGATIVE_ERROR_REGEX = re.compile(r'^NET_ERROR\(([\w]+), (-[0-9]+)\)') |
| |
| def ReadNetErrorCodes(filename, error_regex): |
| """Reads in values from net_error_list.h, returning a dictionary mapping |
| error code to error name. |
| """ |
| # Read the file as a list of lines |
| with open(path_util.GetInputFile(filename)) as f: |
| content = f.readlines() |
| |
| # Parse out lines that are net errors. |
| errors = {} |
| for line in content: |
| m = error_regex.match(line) |
| if m: |
| errors[int(m.group(2))] = m.group(1) |
| return errors |
| |
| |
| def main(): |
| if len(sys.argv) > 1: |
| print >>sys.stderr, 'No arguments expected!' |
| sys.stderr.write(__doc__) |
| sys.exit(1) |
| |
| update_histogram_enum.UpdateHistogramFromDict( |
| 'NetErrorCodes', |
| ReadNetErrorCodes(NET_ERROR_LIST_PATH, POSITIVE_ERROR_REGEX), |
| NET_ERROR_LIST_PATH) |
| |
| update_histogram_enum.UpdateHistogramFromDict( |
| 'CombinedHttpResponseAndNetErrorCode', |
| ReadNetErrorCodes(NET_ERROR_LIST_PATH, NEGATIVE_ERROR_REGEX), |
| NET_ERROR_LIST_PATH) |
| |
| if __name__ == '__main__': |
| main() |