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#!/usr/bin/env python3
# Copyright 2014 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Scans the Chromium source of UseCounter, formats the Feature enum for
histograms.xml and merges it. This script can also generate a python code
snippet to put in uma.py of Chromium Dashboard. Make sure that you review the
output for correctness.
"""
from __future__ import print_function
import optparse
import os
import sys
from update_histogram_enum import ReadHistogramValues
from update_histogram_enum import UpdateHistogramEnum
if __name__ == '__main__':
web_feature_source = \
'third_party/blink/public/mojom/use_counter/metrics/web_feature.mojom'
START_MARKER = '^enum WebFeature {'
END_MARKER = '^kNumberOfFeatures'
UpdateHistogramEnum('tools/metrics/histograms/metadata/blink/enums.xml',
histogram_enum_name='FeatureObserver',
source_enum_path=web_feature_source,
start_marker=START_MARKER,
end_marker=END_MARKER,
strip_k_prefix=True,
calling_script=os.path.basename(__file__))
webdx_feature_source = \
'third_party/blink/public/mojom/use_counter/metrics/webdx_feature.mojom'
WEBDX_START_MARKER = '^enum WebDXFeature {'
UpdateHistogramEnum('tools/metrics/histograms/metadata/blink/enums.xml',
histogram_enum_name='WebDXFeatureObserver',
source_enum_path=webdx_feature_source,
start_marker=WEBDX_START_MARKER,
end_marker=END_MARKER,
strip_k_prefix=True,
calling_script=os.path.basename(__file__))
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