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# Copyright 2015 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.
"""Utility functions for resolving file paths in histograms scripts."""
import os.path
def GetHistogramsFile():
"""Returns the path to histograms.xml.
Prefer using this function instead of just open("histograms.xml"), so that
scripts work properly even if run from outside the histograms directory.
"""
return GetInputFile('tools/metrics/histograms/histograms.xml')
def GetInputFile(src_relative_file_path):
"""Converts a src/-relative file path into a path that can be opened."""
depth = [os.path.dirname(__file__), '..', '..', '..']
path = os.path.join(*(depth + src_relative_file_path.split('/')))
return os.path.abspath(path)
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