blob: 6311e9e27061fc770cca07f6a3e97709ef231fbd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
#!/usr/bin/env python
# Copyright 2017 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.
"""A script to merge multiple source xml files into a single histograms.xml."""
import argparse
import xml.dom.minidom
def GetElementsByTagName(trees, tag):
"""Get all elements with the specified tag from a set of DOM trees.
Args:
trees: A list of DOM trees.
tag: The tag of the elements to find.
Returns:
A list of DOM nodes with the specified tag.
"""
return [e for t in trees for e in t.getElementsByTagName(tag)]
def MakeNodeWithChildren(doc, tag, children):
"""Create a dom node with specified tag and child nodes.
Args:
doc: The document to create the node in.
tag: The tag to create the node with.
children: A list of DOM nodes to add as children.
Returns:
A DOM node.
"""
node = doc.createElement(tag)
for child in children:
node.appendChild(child)
return node
def MergeTrees(trees):
"""Merge a list of histograms.xml DOM trees.
Args:
trees: A list of histograms.xml DOM trees.
Returns:
A merged DOM tree.
"""
doc = xml.dom.minidom.Document()
doc.appendChild(MakeNodeWithChildren(doc, 'histogram-configuration',
# This can result in the merged document having multiple <enums> and
# similar sections, but scripts ignore these anyway.
GetElementsByTagName(trees, 'enums') +
GetElementsByTagName(trees, 'histograms') +
GetElementsByTagName(trees, 'histogram_suffixes_list')))
return doc
def MergeFiles(filenames):
"""Merge a list of histograms.xml files.
Args:
filenames: A list of histograms.xml filenames.
Returns:
A merged DOM tree.
"""
trees = [xml.dom.minidom.parse(open(f)) for f in filenames]
return MergeTrees(trees)
def main():
parser = argparse.ArgumentParser()
parser.add_argument('inputs', nargs="+")
parser.add_argument('--output', required=True)
args = parser.parse_args()
MergeFiles(args.inputs).writexml(open(args.output, 'w'))
if __name__ == '__main__':
main()
|
