Build multiple APKs, each containing a disjoint subset of configurations. These can then be loaded into the device AssetManager and should operate as if they were never split. Use the idea of building multiple sets of files, where each set represents an APK. An ApkBuilder can place files in a set based on its configuration, but you can actually add directly to a set, in the case of the resources.arsc and generated AndroidManifest.xml for splits. Change-Id: Ic65d3f0ac1bbd290185695b9971d425c85ab1de3
114 lines
3.1 KiB
C++
114 lines
3.1 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __APK_BUILDER_H
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#define __APK_BUILDER_H
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#include <set>
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#include <utils/Errors.h>
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#include <utils/String8.h>
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#include <utils/StrongPointer.h>
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#include <utils/Vector.h>
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#include "ConfigDescription.h"
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#include "OutputSet.h"
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#include "ResourceFilter.h"
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class ApkSplit;
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class AaptFile;
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class ApkBuilder : public android::RefBase {
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public:
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ApkBuilder(const sp<WeakResourceFilter>& configFilter);
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/**
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* Tells the builder to generate a separate APK for resources that
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* match the configurations specified. Split APKs can not have
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* overlapping resources.
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*
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* NOTE: All splits should be set up before any files are added.
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*/
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android::status_t createSplitForConfigs(const std::set<ConfigDescription>& configs);
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/**
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* Adds a file to be written to the final APK. It's name must not collide
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* with that of any files previously added. When a Split APK is being
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* generated, duplicates can exist as long as they are in different splits
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* (resources.arsc, AndroidManifest.xml).
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*/
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android::status_t addEntry(const String8& path, const android::sp<AaptFile>& file);
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android::Vector<sp<ApkSplit> >& getSplits() {
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return mSplits;
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}
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void print() const;
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private:
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android::sp<ResourceFilter> mConfigFilter;
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android::sp<AndResourceFilter> mDefaultFilter;
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android::Vector<sp<ApkSplit> > mSplits;
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};
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class ApkSplit : public OutputSet {
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public:
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android::status_t addEntry(const String8& path, const android::sp<AaptFile>& file);
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const std::set<OutputEntry>& getEntries() const {
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return mFiles;
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}
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const std::set<ConfigDescription>& getConfigs() const {
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return mConfigs;
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}
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bool matches(const sp<AaptFile>& file) const {
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return mFilter->match(file->getGroupEntry().toParams());
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}
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sp<ResourceFilter> getResourceFilter() const {
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return mFilter;
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}
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const android::String8& getPrintableName() const {
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return mName;
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}
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const android::String8& getDirectorySafeName() const {
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return mDirName;
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}
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bool isBase() const {
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return mIsBase;
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}
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void print() const;
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private:
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friend class ApkBuilder;
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ApkSplit(const std::set<ConfigDescription>& configs, const android::sp<ResourceFilter>& filter, bool isBase=false);
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std::set<ConfigDescription> mConfigs;
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const sp<ResourceFilter> mFilter;
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const bool mIsBase;
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String8 mName;
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String8 mDirName;
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std::set<OutputEntry> mFiles;
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};
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#endif // __APK_BUILDER_H
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