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#!/usr/bin/env python
#
# Copyright (C) 2018 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""A tool for inserting values from the build system into a manifest."""
from __future__ import print_function
from xml.dom import minidom
android_ns = 'http://schemas.android.com/apk/res/android'
def get_children_with_tag(parent, tag_name):
children = []
for child in parent.childNodes:
if child.nodeType == minidom.Node.ELEMENT_NODE and \
child.tagName == tag_name:
children.append(child)
return children
def find_child_with_attribute(element, tag_name, namespace_uri,
attr_name, value):
for child in get_children_with_tag(element, tag_name):
attr = child.getAttributeNodeNS(namespace_uri, attr_name)
if attr is not None and attr.value == value:
return child
return None
def parse_manifest(doc):
"""Get the manifest element."""
manifest = doc.documentElement
if manifest.tagName != 'manifest':
raise RuntimeError('expected manifest tag at root')
return manifest
def ensure_manifest_android_ns(doc):
"""Make sure the manifest tag defines the android namespace."""
manifest = parse_manifest(doc)
ns = manifest.getAttributeNodeNS(minidom.XMLNS_NAMESPACE, 'android')
if ns is None:
attr = doc.createAttributeNS(minidom.XMLNS_NAMESPACE, 'xmlns:android')
attr.value = android_ns
manifest.setAttributeNode(attr)
elif ns.value != android_ns:
raise RuntimeError('manifest tag has incorrect android namespace ' +
ns.value)
def as_int(s):
try:
i = int(s)
except ValueError:
return s, False
return i, True
def compare_version_gt(a, b):
"""Compare two SDK versions.
Compares a and b, treating codenames like 'Q' as higher
than numerical versions like '28'.
Returns True if a > b
Args:
a: value to compare
b: value to compare
Returns:
True if a is a higher version than b
"""
a, a_is_int = as_int(a.upper())
b, b_is_int = as_int(b.upper())
if a_is_int == b_is_int:
# Both are codenames or both are versions, compare directly
return a > b
else:
# One is a codename, the other is not. Return true if
# b is an integer version
return b_is_int
def get_indent(element, default_level):
indent = ''
if element is not None and element.nodeType == minidom.Node.TEXT_NODE:
text = element.nodeValue
indent = text[:len(text)-len(text.lstrip())]
if not indent or indent == '\n':
# 1 indent = 4 space
indent = '\n' + (' ' * default_level * 4)
return indent
def write_xml(f, doc):
f.write('<?xml version="1.0" encoding="utf-8"?>\n')
for node in doc.childNodes:
f.write(node.toxml(encoding='utf-8') + '\n')
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