tools/split-select/Main.cpp - LeafOS-Project/android_frameworks_base - Gitiles

 /*
  * Copyright (C) 2014 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.
  */

 #include <algorithm>
 #include <cstdio>

 #include "aapt/AaptUtil.h"

 #include "Grouper.h"
 #include "Rule.h"
 #include "RuleGenerator.h"
 #include "SplitDescription.h"
 #include "SplitSelector.h"

 #include <androidfw/AssetManager.h>
 #include <androidfw/ResourceTypes.h>
 #include <utils/KeyedVector.h>
 #include <utils/Vector.h>

 using namespace android;

 namespace split {

 static void usage() {
     fprintf(stderr,
             "split-select --help\n"
             "split-select --target <config> --base <path/to/apk> [--split <path/to/apk> [...]]\n"
             "split-select --generate --base <path/to/apk> [--split <path/to/apk> [...]]\n"
             "\n"
             "  --help                   Displays more information about this program.\n"
             "  --target <config>        Performs the Split APK selection on the given configuration.\n"
             "  --generate               Generates the logic for selecting the Split APK, in JSON format.\n"
             "  --base <path/to/apk>     Specifies the base APK, from which all Split APKs must be based off.\n"
             "  --split <path/to/apk>    Includes a Split APK in the selection process.\n"
             "\n"
             "  Where <config> is an extended AAPT resource qualifier of the form\n"
             "  'resource-qualifiers:extended-qualifiers', where 'resource-qualifiers' is an AAPT resource\n"
             "  qualifier (ex: en-rUS-sw600dp-xhdpi), and 'extended-qualifiers' is an ordered list of one\n"
             "  qualifier (or none) from each category:\n"
             "    Architecture: armeabi, armeabi-v7a, arm64-v8a, x86, x86_64, mips\n");
 }

 static void help() {
     usage();
     fprintf(stderr, "\n"
             "  Generates the logic for selecting a Split APK given some target Android device configuration.\n"
             "  Using the flag --generate will emit a JSON encoded tree of rules that must be satisfied in order\n"
             "  to install the given Split APK. Using the flag --target along with the device configuration\n"
             "  will emit the set of Split APKs to install, following the same logic that would have been emitted\n"
             "  via JSON.\n");
 }

 Vector<SplitDescription> select(const SplitDescription& target, const Vector<SplitDescription>& splits) {
     const SplitSelector selector(splits);
     return selector.getBestSplits(target);
 }

 void generate(const KeyedVector<String8, Vector<SplitDescription> >& splits, const String8& base) {
     Vector<SplitDescription> allSplits;
     const size_t apkSplitCount = splits.size();
     for (size_t i = 0; i < apkSplitCount; i++) {
         allSplits.appendVector(splits[i]);
     }
     const SplitSelector selector(allSplits);
     KeyedVector<SplitDescription, sp<Rule> > rules(selector.getRules());

     bool first = true;
     fprintf(stdout, "[\n");
     for (size_t i = 0; i < apkSplitCount; i++) {
         if (splits.keyAt(i) == base) {
             // Skip the base.
             continue;
         }

         if (!first) {
             fprintf(stdout, ",\n");
         }
         first = false;

         sp<Rule> masterRule = new Rule();
         masterRule->op = Rule::OR_SUBRULES;
         const Vector<SplitDescription>& splitDescriptions = splits[i];
         const size_t splitDescriptionCount = splitDescriptions.size();
         for (size_t j = 0; j < splitDescriptionCount; j++) {
             masterRule->subrules.add(rules.valueFor(splitDescriptions[j]));
         }
         masterRule = Rule::simplify(masterRule);
         fprintf(stdout, "  {\n    \"path\": \"%s\",\n    \"rules\": %s\n  }",
                 splits.keyAt(i).string(),
                 masterRule->toJson(2).string());
     }
     fprintf(stdout, "\n]\n");
 }

 static void removeRuntimeQualifiers(ConfigDescription* outConfig) {
     outConfig->imsi = 0;
     outConfig->orientation = ResTable_config::ORIENTATION_ANY;
     outConfig->screenWidth = ResTable_config::SCREENWIDTH_ANY;
     outConfig->screenHeight = ResTable_config::SCREENHEIGHT_ANY;
     outConfig->uiMode &= ResTable_config::UI_MODE_NIGHT_ANY;
 }

 struct AppInfo {
     int versionCode;
     int minSdkVersion;
     bool multiArch;
 };

 static bool getAppInfo(const String8& path, AppInfo& outInfo) {
     memset(&outInfo, 0, sizeof(outInfo));

     AssetManager assetManager;
     int32_t cookie = 0;
     if (!assetManager.addAssetPath(path, &cookie)) {
         return false;
     }

     Asset* asset = assetManager.openNonAsset(cookie, "AndroidManifest.xml", Asset::ACCESS_BUFFER);
     if (asset == NULL) {
         return false;
     }

     ResXMLTree xml;
     if (xml.setTo(asset->getBuffer(true), asset->getLength(), false) != NO_ERROR) {
         delete asset;
         return false;
     }

     const String16 kAndroidNamespace("http://schemas.android.com/apk/res/android");
     const String16 kManifestTag("manifest");
     const String16 kApplicationTag("application");
     const String16 kUsesSdkTag("uses-sdk");
     const String16 kVersionCodeAttr("versionCode");
     const String16 kMultiArchAttr("multiArch");
     const String16 kMinSdkVersionAttr("minSdkVersion");

     ResXMLParser::event_code_t event;
     while ((event = xml.next()) != ResXMLParser::BAD_DOCUMENT &&
             event != ResXMLParser::END_DOCUMENT) {
         if (event != ResXMLParser::START_TAG) {
             continue;
         }

         size_t len;
         const char16_t* name = xml.getElementName(&len);
         String16 name16(name, len);
         if (name16 == kManifestTag) {
             ssize_t idx = xml.indexOfAttribute(
                     kAndroidNamespace.string(), kAndroidNamespace.size(),
                     kVersionCodeAttr.string(), kVersionCodeAttr.size());
             if (idx >= 0) {
                 outInfo.versionCode = xml.getAttributeData(idx);
             }

         } else if (name16 == kApplicationTag) {
             ssize_t idx = xml.indexOfAttribute(
                     kAndroidNamespace.string(), kAndroidNamespace.size(),
                     kMultiArchAttr.string(), kMultiArchAttr.size());
             if (idx >= 0) {
                 outInfo.multiArch = xml.getAttributeData(idx) != 0;
             }

         } else if (name16 == kUsesSdkTag) {
             ssize_t idx = xml.indexOfAttribute(
                     kAndroidNamespace.string(), kAndroidNamespace.size(),
                     kMinSdkVersionAttr.string(), kMinSdkVersionAttr.size());
             if (idx >= 0) {
                 uint16_t type = xml.getAttributeDataType(idx);
                 if (type >= Res_value::TYPE_FIRST_INT && type <= Res_value::TYPE_LAST_INT) {
                     outInfo.minSdkVersion = xml.getAttributeData(idx);
                 } else if (type == Res_value::TYPE_STRING) {
                     auto minSdk8 = xml.getStrings().string8ObjectAt(idx);
                     if (!minSdk8.has_value()) {
                         fprintf(stderr, "warning: failed to retrieve android:minSdkVersion.\n");
                     } else {
                         char *endPtr;
                         int minSdk = strtol(minSdk8->string(), &endPtr, 10);
                         if (endPtr != minSdk8->string() + minSdk8->size()) {
                             fprintf(stderr, "warning: failed to parse android:minSdkVersion '%s'\n",
                                     minSdk8->string());
                         } else {
                             outInfo.minSdkVersion = minSdk;
                         }
                     }
                 } else {
                     fprintf(stderr, "warning: unrecognized value for android:minSdkVersion.\n");
                 }
             }
         }
     }

     delete asset;
     return true;
 }

 static Vector<SplitDescription> extractSplitDescriptionsFromApk(const String8& path) {
     AssetManager assetManager;
     Vector<SplitDescription> splits;
     int32_t cookie = 0;
     if (!assetManager.addAssetPath(path, &cookie)) {
         return splits;
     }

     const ResTable& res = assetManager.getResources(false);
     if (res.getError() == NO_ERROR) {
         Vector<ResTable_config> configs;
         res.getConfigurations(&configs, true);
         const size_t configCount = configs.size();
         for (size_t i = 0; i < configCount; i++) {
             splits.add();
             splits.editTop().config = configs[i];
         }
     }

     AssetDir* dir = assetManager.openNonAssetDir(cookie, "lib");
     if (dir != NULL) {
         const size_t fileCount = dir->getFileCount();
         for (size_t i = 0; i < fileCount; i++) {
             splits.add();
             Vector<String8> parts = AaptUtil::splitAndLowerCase(dir->getFileName(i), '-');
             if (parseAbi(parts, 0, &splits.editTop()) < 0) {
                 fprintf(stderr, "Malformed library %s\n", dir->getFileName(i).string());
                 splits.pop();
             }
         }
         delete dir;
     }
     return splits;
 }

 static int main(int argc, char** argv) {
     // Skip over the first argument.
     argc--;
     argv++;

     bool generateFlag = false;
     String8 targetConfigStr;
     Vector<String8> splitApkPaths;
     String8 baseApkPath;
     while (argc > 0) {
         const String8 arg(*argv);
         if (arg == "--target") {
             argc--;
             argv++;
             if (argc < 1) {
                 fprintf(stderr, "error: missing parameter for --target.\n");
                 usage();
                 return 1;
             }
             targetConfigStr.setTo(*argv);
         } else if (arg == "--split") {
             argc--;
             argv++;
             if (argc < 1) {
                 fprintf(stderr, "error: missing parameter for --split.\n");
                 usage();
                 return 1;
             }
             splitApkPaths.add(String8(*argv));
         } else if (arg == "--base") {
             argc--;
             argv++;
             if (argc < 1) {
                 fprintf(stderr, "error: missing parameter for --base.\n");
                 usage();
                 return 1;
             }

             if (baseApkPath.size() > 0) {
                 fprintf(stderr, "error: multiple --base flags not allowed.\n");
                 usage();
                 return 1;
             }
             baseApkPath.setTo(*argv);
         } else if (arg == "--generate") {
             generateFlag = true;
         } else if (arg == "--help") {
             help();
             return 0;
         } else {
             fprintf(stderr, "error: unknown argument '%s'.\n", arg.string());
             usage();
             return 1;
         }
         argc--;
         argv++;
     }

     if (!generateFlag && targetConfigStr == "") {
         usage();
         return 1;
     }

     if (baseApkPath.size() == 0) {
         fprintf(stderr, "error: missing --base argument.\n");
         usage();
         return 1;
     }

     // Find out some details about the base APK.
     AppInfo baseAppInfo;
     if (!getAppInfo(baseApkPath, baseAppInfo)) {
         fprintf(stderr, "error: unable to read base APK: '%s'.\n", baseApkPath.string());
         return 1;
     }

     SplitDescription targetSplit;
     if (!generateFlag) {
         if (!SplitDescription::parse(targetConfigStr, &targetSplit)) {
             fprintf(stderr, "error: invalid --target config: '%s'.\n",
                     targetConfigStr.string());
             usage();
             return 1;
         }

         // We don't want to match on things that will change at run-time
         // (orientation, w/h, etc.).
         removeRuntimeQualifiers(&targetSplit.config);
     }

     splitApkPaths.add(baseApkPath);

     KeyedVector<String8, Vector<SplitDescription> > apkPathSplitMap;
     KeyedVector<SplitDescription, String8> splitApkPathMap;
     Vector<SplitDescription> splitConfigs;
     const size_t splitCount = splitApkPaths.size();
     for (size_t i = 0; i < splitCount; i++) {
         Vector<SplitDescription> splits = extractSplitDescriptionsFromApk(splitApkPaths[i]);
         if (splits.isEmpty()) {
             fprintf(stderr, "error: invalid --split path: '%s'. No splits found.\n",
                     splitApkPaths[i].string());
             usage();
             return 1;
         }
         apkPathSplitMap.replaceValueFor(splitApkPaths[i], splits);
         const size_t apkSplitDescriptionCount = splits.size();
         for (size_t j = 0; j < apkSplitDescriptionCount; j++) {
             splitApkPathMap.replaceValueFor(splits[j], splitApkPaths[i]);
         }
         splitConfigs.appendVector(splits);
     }

     if (!generateFlag) {
         Vector<SplitDescription> matchingConfigs = select(targetSplit, splitConfigs);
         const size_t matchingConfigCount = matchingConfigs.size();
         SortedVector<String8> matchingSplitPaths;
         for (size_t i = 0; i < matchingConfigCount; i++) {
             matchingSplitPaths.add(splitApkPathMap.valueFor(matchingConfigs[i]));
         }

         const size_t matchingSplitApkPathCount = matchingSplitPaths.size();
         for (size_t i = 0; i < matchingSplitApkPathCount; i++) {
             if (matchingSplitPaths[i] != baseApkPath) {
                 fprintf(stdout, "%s\n", matchingSplitPaths[i].string());
             }
         }
     } else {
         generate(apkPathSplitMap, baseApkPath);
     }
     return 0;
 }

 } // namespace split

 int main(int argc, char** argv) {
     return split::main(argc, argv);
 }
	/*
	* Copyright (C) 2014 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.
	*/

	#include <algorithm>
	#include <cstdio>

	#include "aapt/AaptUtil.h"

	#include "Grouper.h"
	#include "Rule.h"
	#include "RuleGenerator.h"
	#include "SplitDescription.h"
	#include "SplitSelector.h"

	#include <androidfw/AssetManager.h>
	#include <androidfw/ResourceTypes.h>
	#include <utils/KeyedVector.h>
	#include <utils/Vector.h>

	using namespace android;

	namespace split {

	static void usage() {
	fprintf(stderr,
	"split-select --help\n"
	"split-select --target <config> --base <path/to/apk> [--split <path/to/apk> [...]]\n"
	"split-select --generate --base <path/to/apk> [--split <path/to/apk> [...]]\n"
	"\n"
	" --help Displays more information about this program.\n"
	" --target <config> Performs the Split APK selection on the given configuration.\n"
	" --generate Generates the logic for selecting the Split APK, in JSON format.\n"
	" --base <path/to/apk> Specifies the base APK, from which all Split APKs must be based off.\n"
	" --split <path/to/apk> Includes a Split APK in the selection process.\n"
	"\n"
	" Where <config> is an extended AAPT resource qualifier of the form\n"
	" 'resource-qualifiers:extended-qualifiers', where 'resource-qualifiers' is an AAPT resource\n"
	" qualifier (ex: en-rUS-sw600dp-xhdpi), and 'extended-qualifiers' is an ordered list of one\n"
	" qualifier (or none) from each category:\n"
	" Architecture: armeabi, armeabi-v7a, arm64-v8a, x86, x86_64, mips\n");
	}

	static void help() {
	usage();
	fprintf(stderr, "\n"
	" Generates the logic for selecting a Split APK given some target Android device configuration.\n"
	" Using the flag --generate will emit a JSON encoded tree of rules that must be satisfied in order\n"
	" to install the given Split APK. Using the flag --target along with the device configuration\n"
	" will emit the set of Split APKs to install, following the same logic that would have been emitted\n"
	" via JSON.\n");
	}

	Vector<SplitDescription> select(const SplitDescription& target, const Vector<SplitDescription>& splits) {
	const SplitSelector selector(splits);
	return selector.getBestSplits(target);
	}

	void generate(const KeyedVector<String8, Vector<SplitDescription> >& splits, const String8& base) {
	Vector<SplitDescription> allSplits;
	const size_t apkSplitCount = splits.size();
	for (size_t i = 0; i < apkSplitCount; i++) {
	allSplits.appendVector(splits[i]);
	}
	const SplitSelector selector(allSplits);
	KeyedVector<SplitDescription, sp<Rule> > rules(selector.getRules());

	bool first = true;
	fprintf(stdout, "[\n");
	for (size_t i = 0; i < apkSplitCount; i++) {
	if (splits.keyAt(i) == base) {
	// Skip the base.
	continue;
	}

	if (!first) {
	fprintf(stdout, ",\n");
	}
	first = false;

	sp<Rule> masterRule = new Rule();
	masterRule->op = Rule::OR_SUBRULES;
	const Vector<SplitDescription>& splitDescriptions = splits[i];
	const size_t splitDescriptionCount = splitDescriptions.size();
	for (size_t j = 0; j < splitDescriptionCount; j++) {
	masterRule->subrules.add(rules.valueFor(splitDescriptions[j]));
	}
	masterRule = Rule::simplify(masterRule);
	fprintf(stdout, " {\n \"path\": \"%s\",\n \"rules\": %s\n }",
	splits.keyAt(i).string(),
	masterRule->toJson(2).string());
	}
	fprintf(stdout, "\n]\n");
	}

	static void removeRuntimeQualifiers(ConfigDescription* outConfig) {
	outConfig->imsi = 0;
	outConfig->orientation = ResTable_config::ORIENTATION_ANY;
	outConfig->screenWidth = ResTable_config::SCREENWIDTH_ANY;
	outConfig->screenHeight = ResTable_config::SCREENHEIGHT_ANY;
	outConfig->uiMode &= ResTable_config::UI_MODE_NIGHT_ANY;
	}

	struct AppInfo {
	int versionCode;
	int minSdkVersion;
	bool multiArch;
	};

	static bool getAppInfo(const String8& path, AppInfo& outInfo) {
	memset(&outInfo, 0, sizeof(outInfo));

	AssetManager assetManager;
	int32_t cookie = 0;
	if (!assetManager.addAssetPath(path, &cookie)) {
	return false;
	}

	Asset* asset = assetManager.openNonAsset(cookie, "AndroidManifest.xml", Asset::ACCESS_BUFFER);
	if (asset == NULL) {
	return false;
	}

	ResXMLTree xml;
	if (xml.setTo(asset->getBuffer(true), asset->getLength(), false) != NO_ERROR) {
	delete asset;
	return false;
	}

	const String16 kAndroidNamespace("http://schemas.android.com/apk/res/android");
	const String16 kManifestTag("manifest");
	const String16 kApplicationTag("application");
	const String16 kUsesSdkTag("uses-sdk");
	const String16 kVersionCodeAttr("versionCode");
	const String16 kMultiArchAttr("multiArch");
	const String16 kMinSdkVersionAttr("minSdkVersion");

	ResXMLParser::event_code_t event;
	while ((event = xml.next()) != ResXMLParser::BAD_DOCUMENT &&
	event != ResXMLParser::END_DOCUMENT) {
	if (event != ResXMLParser::START_TAG) {
	continue;
	}

	size_t len;
	const char16_t* name = xml.getElementName(&len);
	String16 name16(name, len);
	if (name16 == kManifestTag) {
	ssize_t idx = xml.indexOfAttribute(
	kAndroidNamespace.string(), kAndroidNamespace.size(),
	kVersionCodeAttr.string(), kVersionCodeAttr.size());
	if (idx >= 0) {
	outInfo.versionCode = xml.getAttributeData(idx);
	}

	} else if (name16 == kApplicationTag) {
	ssize_t idx = xml.indexOfAttribute(
	kAndroidNamespace.string(), kAndroidNamespace.size(),
	kMultiArchAttr.string(), kMultiArchAttr.size());
	if (idx >= 0) {
	outInfo.multiArch = xml.getAttributeData(idx) != 0;
	}

	} else if (name16 == kUsesSdkTag) {
	ssize_t idx = xml.indexOfAttribute(
	kAndroidNamespace.string(), kAndroidNamespace.size(),
	kMinSdkVersionAttr.string(), kMinSdkVersionAttr.size());
	if (idx >= 0) {
	uint16_t type = xml.getAttributeDataType(idx);
	if (type >= Res_value::TYPE_FIRST_INT && type <= Res_value::TYPE_LAST_INT) {
	outInfo.minSdkVersion = xml.getAttributeData(idx);
	} else if (type == Res_value::TYPE_STRING) {
	auto minSdk8 = xml.getStrings().string8ObjectAt(idx);
	if (!minSdk8.has_value()) {
	fprintf(stderr, "warning: failed to retrieve android:minSdkVersion.\n");
	} else {
	char *endPtr;
	int minSdk = strtol(minSdk8->string(), &endPtr, 10);
	if (endPtr != minSdk8->string() + minSdk8->size()) {
	fprintf(stderr, "warning: failed to parse android:minSdkVersion '%s'\n",
	minSdk8->string());
	} else {
	outInfo.minSdkVersion = minSdk;
	}
	}
	} else {
	fprintf(stderr, "warning: unrecognized value for android:minSdkVersion.\n");
	}
	}
	}
	}

	delete asset;
	return true;
	}

	static Vector<SplitDescription> extractSplitDescriptionsFromApk(const String8& path) {
	AssetManager assetManager;
	Vector<SplitDescription> splits;
	int32_t cookie = 0;
	if (!assetManager.addAssetPath(path, &cookie)) {
	return splits;
	}

	const ResTable& res = assetManager.getResources(false);
	if (res.getError() == NO_ERROR) {
	Vector<ResTable_config> configs;
	res.getConfigurations(&configs, true);
	const size_t configCount = configs.size();
	for (size_t i = 0; i < configCount; i++) {
	splits.add();
	splits.editTop().config = configs[i];
	}
	}

	AssetDir* dir = assetManager.openNonAssetDir(cookie, "lib");
	if (dir != NULL) {
	const size_t fileCount = dir->getFileCount();
	for (size_t i = 0; i < fileCount; i++) {
	splits.add();
	Vector<String8> parts = AaptUtil::splitAndLowerCase(dir->getFileName(i), '-');
	if (parseAbi(parts, 0, &splits.editTop()) < 0) {
	fprintf(stderr, "Malformed library %s\n", dir->getFileName(i).string());
	splits.pop();
	}
	}
	delete dir;
	}
	return splits;
	}

	static int main(int argc, char** argv) {
	// Skip over the first argument.
	argc--;
	argv++;

	bool generateFlag = false;
	String8 targetConfigStr;
	Vector<String8> splitApkPaths;
	String8 baseApkPath;
	while (argc > 0) {
	const String8 arg(*argv);
	if (arg == "--target") {
	argc--;
	argv++;
	if (argc < 1) {
	fprintf(stderr, "error: missing parameter for --target.\n");
	usage();
	return 1;
	}
	targetConfigStr.setTo(*argv);
	} else if (arg == "--split") {
	argc--;
	argv++;
	if (argc < 1) {
	fprintf(stderr, "error: missing parameter for --split.\n");
	usage();
	return 1;
	}
	splitApkPaths.add(String8(*argv));
	} else if (arg == "--base") {
	argc--;
	argv++;
	if (argc < 1) {
	fprintf(stderr, "error: missing parameter for --base.\n");
	usage();
	return 1;
	}

	if (baseApkPath.size() > 0) {
	fprintf(stderr, "error: multiple --base flags not allowed.\n");
	usage();
	return 1;
	}
	baseApkPath.setTo(*argv);
	} else if (arg == "--generate") {
	generateFlag = true;
	} else if (arg == "--help") {
	help();
	return 0;
	} else {
	fprintf(stderr, "error: unknown argument '%s'.\n", arg.string());
	usage();
	return 1;
	}
	argc--;
	argv++;
	}

	if (!generateFlag && targetConfigStr == "") {
	usage();
	return 1;
	}

	if (baseApkPath.size() == 0) {
	fprintf(stderr, "error: missing --base argument.\n");
	usage();
	return 1;
	}

	// Find out some details about the base APK.
	AppInfo baseAppInfo;
	if (!getAppInfo(baseApkPath, baseAppInfo)) {
	fprintf(stderr, "error: unable to read base APK: '%s'.\n", baseApkPath.string());
	return 1;
	}

	SplitDescription targetSplit;
	if (!generateFlag) {
	if (!SplitDescription::parse(targetConfigStr, &targetSplit)) {
	fprintf(stderr, "error: invalid --target config: '%s'.\n",
	targetConfigStr.string());
	usage();
	return 1;
	}

	// We don't want to match on things that will change at run-time
	// (orientation, w/h, etc.).
	removeRuntimeQualifiers(&targetSplit.config);
	}

	splitApkPaths.add(baseApkPath);

	KeyedVector<String8, Vector<SplitDescription> > apkPathSplitMap;
	KeyedVector<SplitDescription, String8> splitApkPathMap;
	Vector<SplitDescription> splitConfigs;
	const size_t splitCount = splitApkPaths.size();
	for (size_t i = 0; i < splitCount; i++) {
	Vector<SplitDescription> splits = extractSplitDescriptionsFromApk(splitApkPaths[i]);
	if (splits.isEmpty()) {
	fprintf(stderr, "error: invalid --split path: '%s'. No splits found.\n",
	splitApkPaths[i].string());
	usage();
	return 1;
	}
	apkPathSplitMap.replaceValueFor(splitApkPaths[i], splits);
	const size_t apkSplitDescriptionCount = splits.size();
	for (size_t j = 0; j < apkSplitDescriptionCount; j++) {
	splitApkPathMap.replaceValueFor(splits[j], splitApkPaths[i]);
	}
	splitConfigs.appendVector(splits);
	}

	if (!generateFlag) {
	Vector<SplitDescription> matchingConfigs = select(targetSplit, splitConfigs);
	const size_t matchingConfigCount = matchingConfigs.size();
	SortedVector<String8> matchingSplitPaths;
	for (size_t i = 0; i < matchingConfigCount; i++) {
	matchingSplitPaths.add(splitApkPathMap.valueFor(matchingConfigs[i]));
	}

	const size_t matchingSplitApkPathCount = matchingSplitPaths.size();
	for (size_t i = 0; i < matchingSplitApkPathCount; i++) {
	if (matchingSplitPaths[i] != baseApkPath) {
	fprintf(stdout, "%s\n", matchingSplitPaths[i].string());
	}
	}
	} else {
	generate(apkPathSplitMap, baseApkPath);
	}
	return 0;
	}

	} // namespace split

	int main(int argc, char** argv) {
	return split::main(argc, argv);
	}