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100 lines
3.8 KiB
100 lines
3.8 KiB
/*
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* Copyright (C) 2015 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 AAPT_TABLEMERGER_H
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#define AAPT_TABLEMERGER_H
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#include <functional>
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#include <map>
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#include "android-base/macros.h"
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#include "Resource.h"
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#include "ResourceTable.h"
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#include "ResourceValues.h"
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#include "filter/ConfigFilter.h"
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#include "io/File.h"
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#include "process/IResourceTableConsumer.h"
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#include "util/Util.h"
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namespace aapt {
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struct TableMergerOptions {
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// If true, resources in overlays can be added without previously having existed.
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bool auto_add_overlay = false;
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// If true, resource overlays with conflicting visibility are not allowed.
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bool strict_visibility = false;
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// If true, styles specified via "aapt2 link -R" completely replace any previously-seen resources.
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bool override_styles_instead_of_overlaying = false;
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};
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// TableMerger takes resource tables and merges all packages within the tables that have the same
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// package ID.
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//
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// It is assumed that any FileReference values have their io::IFile pointer set to point to the
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// file they represent.
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//
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// If a package has a different name, all the entries in that table have their names mangled
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// to include the package name. This way there are no collisions. In order to do this correctly,
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// the TableMerger needs to also mangle any FileReference paths. Once these are mangled, the
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// `IFile` pointer in `FileReference` will point to the original file.
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//
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// Once the merging is complete, a separate phase can go collect the files from the various
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// source APKs and either copy or process their XML and put them in the correct location in the
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// final APK.
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class TableMerger {
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public:
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// Note: The out_table ResourceTable must live longer than this TableMerger.
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// References are made to this ResourceTable for efficiency reasons.
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TableMerger(IAaptContext* context, ResourceTable* out_table, const TableMergerOptions& options);
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inline const std::set<std::string>& merged_packages() const {
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return merged_packages_;
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}
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// Merges resources from the same or empty package. This is for local sources.
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// If overlay is true, the resources are treated as overlays.
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bool Merge(const Source& src, ResourceTable* table, bool overlay);
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// Merges resources from the given package, mangling the name. This is for static libraries.
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// All FileReference values must have their io::IFile set.
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bool MergeAndMangle(const Source& src, const android::StringPiece& package, ResourceTable* table);
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// Merges a compiled file that belongs to this same or empty package.
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bool MergeFile(const ResourceFile& fileDesc, bool overlay, io::IFile* file);
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private:
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DISALLOW_COPY_AND_ASSIGN(TableMerger);
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IAaptContext* context_;
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ResourceTable* main_table_;
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TableMergerOptions options_;
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ResourceTablePackage* main_package_;
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std::set<std::string> merged_packages_;
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bool MergeImpl(const Source& src, ResourceTable* src_table, bool overlay, bool allow_new);
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bool DoMerge(const Source& src, ResourceTablePackage* src_package, bool mangle_package,
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bool overlay, bool allow_new_resources);
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std::unique_ptr<FileReference> CloneAndMangleFile(const std::string& package,
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const FileReference& value);
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};
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} // namespace aapt
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#endif /* AAPT_TABLEMERGER_H */
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