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-rw-r--r--chromium/tools/metrics/histograms/update_extension_functions.py148
1 files changed, 0 insertions, 148 deletions
diff --git a/chromium/tools/metrics/histograms/update_extension_functions.py b/chromium/tools/metrics/histograms/update_extension_functions.py
deleted file mode 100644
index 1925c6e4e4e..00000000000
--- a/chromium/tools/metrics/histograms/update_extension_functions.py
+++ /dev/null
@@ -1,148 +0,0 @@
-# Copyright 2013 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 ExtensionFunctions enum in histograms.xml file with values read from
-extension_function_histogram_value.h.
-
-If the file was pretty-printed, the updated version is pretty-printed too.
-"""
-
-import logging
-import re
-import sys
-
-from xml.dom import minidom
-
-from diffutil import PromptUserToAcceptDiff
-from pretty_print import PrettyPrintNode
-
-HISTOGRAMS_PATH = 'histograms.xml'
-ENUM_NAME = 'ExtensionFunctions'
-
-EXTENSION_FUNCTIONS_HISTOGRAM_VALUE_PATH = \
- '../../../chrome/browser/extensions/extension_function_histogram_value.h'
-ENUM_START_MARKER = "^enum HistogramValue {"
-ENUM_END_MARKER = "^ENUM_BOUNDARY"
-
-
-class UserError(Exception):
- def __init__(self, message):
- Exception.__init__(self, message)
-
- @property
- def message(self):
- return self.args[0]
-
-def ExtractRegexGroup(line, regex):
- m = re.match(regex, line)
- if m:
- return m.group(1)
- else:
- return None
-
-
-def ReadHistogramValues(filename):
- """Returns a list of pairs (label, value) corresponding to HistogramValue.
-
- Reads the extension_functions_histogram_value.h file, locates the
- HistogramValue enum definition and returns a pair for each entry.
- """
-
- # Read the file as a list of lines
- with open(filename) as f:
- content = f.readlines()
-
- # Locate the enum definition and collect all entries in it
- inside_enum = False # We haven't found the enum definition yet
- result = []
- for line in content:
- line = line.strip()
- if inside_enum:
- # Exit condition: we reached last enum value
- if re.match(ENUM_END_MARKER, line):
- inside_enum = False
- else:
- # Inside enum: generate new xml entry
- label = ExtractRegexGroup(line.strip(), "^([\w]+)")
- if label:
- result.append((label, enum_value))
- enum_value += 1
- else:
- if re.match(ENUM_START_MARKER, line):
- inside_enum = True
- enum_value = 0 # Start at 'UNKNOWN'
- return result
-
-
-def UpdateHistogramDefinitions(histogram_values, document):
- """Sets the children of <enum name="ExtensionFunctions" ...> node in
- |document| to values generated from policy ids contained in
- |policy_templates|.
-
- Args:
- histogram_values: A list of pairs (label, value) defining each extension
- function
- document: A minidom.Document object representing parsed histogram
- definitions XML file.
-
- """
- # Find ExtensionFunctions enum.
- for enum_node in document.getElementsByTagName('enum'):
- if enum_node.attributes['name'].value == ENUM_NAME:
- extension_functions_enum_node = enum_node
- break
- else:
- raise UserError('No policy enum node found')
-
- # Remove existing values.
- while extension_functions_enum_node.hasChildNodes():
- extension_functions_enum_node.removeChild(
- extension_functions_enum_node.lastChild)
-
- # Add a "Generated from (...)" comment
- comment = ' Generated from {0} '.format(
- EXTENSION_FUNCTIONS_HISTOGRAM_VALUE_PATH)
- extension_functions_enum_node.appendChild(document.createComment(comment))
-
- # Add values generated from policy templates.
- for (label, value) in histogram_values:
- node = document.createElement('int')
- node.attributes['value'] = str(value)
- node.attributes['label'] = label
- extension_functions_enum_node.appendChild(node)
-
-def Log(message):
- logging.info(message)
-
-def main():
- if len(sys.argv) > 1:
- print >>sys.stderr, 'No arguments expected!'
- sys.stderr.write(__doc__)
- sys.exit(1)
-
- Log('Reading histogram enum definition from "%s".'
- % (EXTENSION_FUNCTIONS_HISTOGRAM_VALUE_PATH))
- histogram_values = ReadHistogramValues(
- EXTENSION_FUNCTIONS_HISTOGRAM_VALUE_PATH)
-
- Log('Reading existing histograms from "%s".' % (HISTOGRAMS_PATH))
- with open(HISTOGRAMS_PATH, 'rb') as f:
- histograms_doc = minidom.parse(f)
- f.seek(0)
- xml = f.read()
-
- Log('Comparing histograms enum with new enum definition.')
- UpdateHistogramDefinitions(histogram_values, histograms_doc)
-
- Log('Writing out new histograms file.')
- new_xml = PrettyPrintNode(histograms_doc)
- if PromptUserToAcceptDiff(xml, new_xml, 'Is the updated version acceptable?'):
- with open(HISTOGRAMS_PATH, 'wb') as f:
- f.write(new_xml)
-
- Log('Done.')
-
-
-if __name__ == '__main__':
- main()