• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "AaptAssets.h"
18 #include "ApkBuilder.h"
19 
20 using namespace android;
21 
ApkBuilder(const sp<WeakResourceFilter> & configFilter)22 ApkBuilder::ApkBuilder(const sp<WeakResourceFilter>& configFilter)
23     : mConfigFilter(configFilter)
24     , mDefaultFilter(new AndResourceFilter()) {
25     // Add the default split, which is present for all APKs.
26     mDefaultFilter->addFilter(mConfigFilter);
27     mSplits.add(new ApkSplit(std::set<ConfigDescription>(), mDefaultFilter, true));
28 }
29 
createSplitForConfigs(const std::set<ConfigDescription> & configs)30 status_t ApkBuilder::createSplitForConfigs(const std::set<ConfigDescription>& configs) {
31     const size_t N = mSplits.size();
32     for (size_t i = 0; i < N; i++) {
33         const std::set<ConfigDescription>& splitConfigs = mSplits[i]->getConfigs();
34         std::set<ConfigDescription>::const_iterator iter = configs.begin();
35         for (; iter != configs.end(); iter++) {
36             if (splitConfigs.count(*iter) > 0) {
37                 // Can't have overlapping configurations.
38                 fprintf(stderr, "ERROR: Split configuration '%s' is already defined "
39                         "in another split.\n", iter->toString().string());
40                 return ALREADY_EXISTS;
41             }
42         }
43     }
44 
45     sp<StrongResourceFilter> splitFilter = new StrongResourceFilter(configs);
46 
47     // Add the inverse filter of this split filter to the base apk filter so it will
48     // omit resources that belong in this split.
49     mDefaultFilter->addFilter(new InverseResourceFilter(splitFilter));
50 
51     // Now add the apk-wide config filter to our split filter.
52     sp<AndResourceFilter> filter = new AndResourceFilter();
53     filter->addFilter(splitFilter);
54     filter->addFilter(mConfigFilter);
55     mSplits.add(new ApkSplit(configs, filter));
56     return NO_ERROR;
57 }
58 
addEntry(const String8 & path,const sp<AaptFile> & file)59 status_t ApkBuilder::addEntry(const String8& path, const sp<AaptFile>& file) {
60     const size_t N = mSplits.size();
61     for (size_t i = 0; i < N; i++) {
62         if (mSplits[i]->matches(file)) {
63             return mSplits.editItemAt(i)->addEntry(path, file);
64         }
65     }
66     // Entry can be dropped if it doesn't match any split. This will only happen
67     // if the enry doesn't mConfigFilter.
68     return NO_ERROR;
69 }
70 
print() const71 void ApkBuilder::print() const {
72     fprintf(stderr, "APK Builder\n");
73     fprintf(stderr, "-----------\n");
74     const size_t N = mSplits.size();
75     for (size_t i = 0; i < N; i++) {
76         mSplits[i]->print();
77         fprintf(stderr, "\n");
78     }
79 }
80 
ApkSplit(const std::set<ConfigDescription> & configs,const sp<ResourceFilter> & filter,bool isBase)81 ApkSplit::ApkSplit(const std::set<ConfigDescription>& configs, const sp<ResourceFilter>& filter, bool isBase)
82     : mConfigs(configs), mFilter(filter), mIsBase(isBase) {
83     std::set<ConfigDescription>::const_iterator iter = configs.begin();
84     for (; iter != configs.end(); iter++) {
85         if (mName.size() > 0) {
86             mName.append(",");
87             mDirName.append("_");
88             mPackageSafeName.append(".");
89         }
90 
91         String8 configStr = iter->toString();
92         String8 packageConfigStr(configStr);
93         size_t len = packageConfigStr.length();
94         if (len > 0) {
95             char* buf = packageConfigStr.lockBuffer(len);
96             for (char* end = buf + len; buf < end; ++buf) {
97                 if (*buf == '-') {
98                     *buf = '_';
99                 }
100             }
101             packageConfigStr.unlockBuffer(len);
102         }
103         mName.append(configStr);
104         mDirName.append(configStr);
105         mPackageSafeName.append(packageConfigStr);
106     }
107 }
108 
addEntry(const String8 & path,const sp<AaptFile> & file)109 status_t ApkSplit::addEntry(const String8& path, const sp<AaptFile>& file) {
110     if (!mFiles.insert(OutputEntry(path, file)).second) {
111         // Duplicate file.
112         return ALREADY_EXISTS;
113     }
114     return NO_ERROR;
115 }
116 
print() const117 void ApkSplit::print() const {
118     fprintf(stderr, "APK Split '%s'\n", mName.string());
119 
120     std::set<OutputEntry>::const_iterator iter = mFiles.begin();
121     for (; iter != mFiles.end(); iter++) {
122         fprintf(stderr, "  %s (%s)\n", iter->getPath().string(), iter->getFile()->getSourceFile().string());
123     }
124 }
125