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/*
* Copyright (C) 2021 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 <android-base/logging.h>
#include <android-base/strings.h>
#include <cstdlib>
#include <string_view>
#include "derive_classpath.h"
bool ArgumentMatches(std::string_view argument, std::string_view prefix, std::string_view* value) {
if (android::base::StartsWith(argument, prefix)) {
*value = argument.substr(prefix.size());
return true;
}
return false;
}
// Command line flags need to be considered as a de facto API since there may be callers outside
// of the SdkExtensions APEX, which needs to run on older Android versions. For example, otapreopt
// currently executes derive_classpath with a single output file. When changing the flags, make sure
// it won't break on older Android.
bool ParseArgs(android::derive_classpath::Args& args, int argc, char** argv) {
// Parse flags
std::vector<std::string_view> positional_args;
for (int i = 1; i < argc; ++i) {
const std::string_view arg = argv[i];
std::string_view value;
if (ArgumentMatches(arg, "--bootclasspath-fragment=", &value)) {
if (!args.system_bootclasspath_fragment.empty()) {
LOG(ERROR) << "Duplicated flag --bootclasspath-fragment is specified";
return false;
}
args.system_bootclasspath_fragment = value;
} else if (ArgumentMatches(arg, "--systemserverclasspath-fragment=", &value)) {
if (!args.system_bootclasspath_fragment.empty()) {
LOG(ERROR) << "Duplicated flag --systemserverclasspath-fragment is specified";
return false;
}
args.system_systemserverclasspath_fragment = value;
} else {
positional_args.emplace_back(arg);
}
}
// Handle positional args
if (positional_args.size() == 0) {
args.output_path = android::derive_classpath::kGeneratedClasspathExportsFilepath;
} else if (positional_args.size() == 1) {
args.output_path = positional_args[0];
} else {
LOG(ERROR) << "Unrecognized positional arguments: "
<< android::base::Join(positional_args, ' ');
return false;
}
return true;
}
int main(int argc, char** argv) {
android::derive_classpath::Args args;
if (!ParseArgs(args, argc, argv)) {
return EXIT_FAILURE;
}
if (!android::derive_classpath::GenerateClasspathExports(args)) {
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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