| /* |
| * Copyright (C) 2015, 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 "options.h" |
| #include "logging.h" |
| #include "os.h" |
| |
| #include <getopt.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <algorithm> |
| #include <iostream> |
| #include <sstream> |
| #include <string> |
| |
| #include <android-base/strings.h> |
| |
| using android::base::Split; |
| using android::base::Trim; |
| using std::endl; |
| using std::string; |
| |
| namespace android { |
| namespace aidl { |
| |
| string Options::GetUsage() const { |
| std::ostringstream sstr; |
| sstr << "usage:" << endl |
| << myname_ << " --lang={java|cpp} [OPTION]... INPUT..." << endl |
| << " Generate Java or C++ files for AIDL file(s)." << endl |
| << endl |
| << myname_ << " --preprocess OUTPUT INPUT..." << endl |
| << " Create an AIDL file having declarations of AIDL file(s)." << endl |
| << endl |
| #ifndef _WIN32 |
| << myname_ << " --dumpapi --out=DIR INPUT..." << endl |
| << " Dump API signature of AIDL file(s) to DIR." << endl |
| << endl |
| << myname_ << " --checkapi OLD_DIR NEW_DIR" << endl |
| << " Checkes whether API dump NEW_DIR is backwards compatible extension " << endl |
| << " of the API dump OLD_DIR." << endl |
| #endif |
| << endl; |
| |
| // Legacy option formats |
| if (language_ == Options::Language::JAVA) { |
| sstr << myname_ << " [OPTION]... INPUT [OUTPUT]" << endl |
| << " Generate a Java file for an AIDL file." << endl |
| << endl; |
| } else if (language_ == Options::Language::CPP) { |
| sstr << myname_ << " [OPTION]... INPUT HEADER_DIR OUTPUT" << endl |
| << " Generate C++ headers and source for an AIDL file." << endl |
| << endl; |
| } |
| |
| sstr << "OPTION:" << endl |
| << " -I DIR, --include=DIR" << endl |
| << " Use DIR as a search path for import statements." << endl |
| << " -m FILE, --import=FILE" << endl |
| << " Import FILE directly without searching in the search paths." << endl |
| << " -p FILE, --preprocessed=FILE" << endl |
| << " Include FILE which is created by --preprocess." << endl |
| << " -d FILE, --dep=FILE" << endl |
| << " Generate dependency file as FILE. Don't use this when" << endl |
| << " there are multiple input files. Use -a then." << endl |
| << " -o DIR, --out=DIR" << endl |
| << " Use DIR as the base output directory for generated files." << endl |
| << " -h DIR, --header_out=DIR" << endl |
| << " Generate C++ headers under DIR." << endl |
| << " -a" << endl |
| << " Generate dependency file next to the output file with the" << endl |
| << " name based on the input file." << endl |
| << " -b" << endl |
| << " Trigger fail when trying to compile a parcelable." << endl |
| << " --ninja" << endl |
| << " Generate dependency file in a format ninja understands." << endl |
| << " --structured" << endl |
| << " Whether this interface is defined exclusively in AIDL." << endl |
| << " It is therefore a candidate for stabilization." << endl |
| << " -t, --trace" << endl |
| << " Include tracing code for systrace. Note that if either" << endl |
| << " the client or service code is not auto-generated by this" << endl |
| << " tool, that part will not be traced." << endl |
| << " --transaction_names" << endl |
| << " Generate transaction names." << endl |
| << " -v VER, --version=VER" << endl |
| << " Set the version of the interface and parcelable to VER." << endl |
| << " VER must be an interger greater than 0." << endl |
| << " --log" << endl |
| << " Information about the transaction, e.g., method name, argument" << endl |
| << " values, execution time, etc., is provided via callback." << endl |
| << " --help" << endl |
| << " Show this help." << endl |
| << endl |
| << "INPUT:" << endl |
| << " An AIDL file." << endl |
| << endl |
| << "OUTPUT:" << endl |
| << " Path to the generated Java or C++ source file. This is ignored when" << endl |
| << " -o or --out is specified or the number of the input files are" << endl |
| << " more than one." << endl |
| << " For Java, if omitted, Java source file is generated at the same" << endl |
| << " place as the input AIDL file," << endl |
| << endl |
| << "HEADER_DIR:" << endl |
| << " Path to where C++ headers are generated." << endl; |
| return sstr.str(); |
| } |
| |
| Options Options::From(const string& cmdline) { |
| vector<string> args = Split(cmdline, " "); |
| return From(args); |
| } |
| |
| Options Options::From(const vector<string>& args) { |
| Options::Language lang = Options::Language::JAVA; |
| int argc = args.size(); |
| if (argc >= 1 && args.at(0) == "aidl-cpp") { |
| lang = Options::Language::CPP; |
| } |
| const char* argv[argc + 1]; |
| for (int i = 0; i < argc; i++) { |
| argv[i] = args.at(i).c_str(); |
| } |
| argv[argc] = nullptr; |
| |
| return Options(argc, argv, lang); |
| } |
| |
| Options::Options(int argc, const char* const argv[], Options::Language default_lang) |
| : myname_(argv[0]), language_(default_lang) { |
| bool lang_option_found = false; |
| optind = 0; |
| while (true) { |
| static struct option long_options[] = { |
| {"lang", required_argument, 0, 'l'}, |
| {"preprocess", no_argument, 0, 's'}, |
| #ifndef _WIN32 |
| {"dumpapi", no_argument, 0, 'u'}, |
| {"checkapi", no_argument, 0, 'A'}, |
| #endif |
| {"include", required_argument, 0, 'I'}, |
| {"import", required_argument, 0, 'm'}, |
| {"preprocessed", required_argument, 0, 'p'}, |
| {"dep", required_argument, 0, 'd'}, |
| {"out", required_argument, 0, 'o'}, |
| {"header_out", required_argument, 0, 'h'}, |
| {"ninja", no_argument, 0, 'n'}, |
| {"structured", no_argument, 0, 'S'}, |
| {"trace", no_argument, 0, 't'}, |
| {"transaction_names", no_argument, 0, 'c'}, |
| {"version", required_argument, 0, 'v'}, |
| {"log", no_argument, 0, 'L'}, |
| {"help", no_argument, 0, 'e'}, |
| {0, 0, 0, 0}, |
| }; |
| const int c = getopt_long(argc, const_cast<char* const*>(argv), |
| "I:m:p:d:o:h:abtv:", long_options, nullptr); |
| if (c == -1) { |
| // no more options |
| break; |
| } |
| switch (c) { |
| case 'l': |
| if (language_ == Options::Language::CPP) { |
| // aidl-cpp can't set language. aidl-cpp exists only for backwards |
| // compatibility. |
| error_message_ << "aidl-cpp does not support --lang." << endl; |
| return; |
| } else { |
| lang_option_found = true; |
| string lang = Trim(optarg); |
| if (lang == "java") { |
| language_ = Options::Language::JAVA; |
| task_ = Options::Task::COMPILE; |
| } else if (lang == "cpp") { |
| language_ = Options::Language::CPP; |
| task_ = Options::Task::COMPILE; |
| } else if (lang == "ndk") { |
| language_ = Options::Language::NDK; |
| task_ = Options::Task::COMPILE; |
| } else { |
| error_message_ << "Unsupported language: '" << lang << "'" << endl; |
| return; |
| } |
| } |
| break; |
| case 's': |
| if (task_ != Options::Task::UNSPECIFIED) { |
| task_ = Options::Task::PREPROCESS; |
| } |
| break; |
| #ifndef _WIN32 |
| case 'u': |
| if (task_ != Options::Task::UNSPECIFIED) { |
| task_ = Options::Task::DUMP_API; |
| } |
| break; |
| case 'A': |
| if (task_ != Options::Task::UNSPECIFIED) { |
| task_ = Options::Task::CHECK_API; |
| // to ensure that all parcelables in the api dumpes are structured |
| structured_ = true; |
| } |
| break; |
| #endif |
| case 'I': { |
| import_dirs_.emplace(Trim(optarg)); |
| break; |
| } |
| case 'm': { |
| import_files_.emplace(Trim(optarg)); |
| break; |
| } |
| case 'p': |
| preprocessed_files_.emplace_back(Trim(optarg)); |
| break; |
| case 'd': |
| dependency_file_ = Trim(optarg); |
| break; |
| case 'o': |
| output_dir_ = Trim(optarg); |
| if (output_dir_.back() != OS_PATH_SEPARATOR) { |
| output_dir_.push_back(OS_PATH_SEPARATOR); |
| } |
| break; |
| case 'h': |
| output_header_dir_ = Trim(optarg); |
| if (output_header_dir_.back() != OS_PATH_SEPARATOR) { |
| output_header_dir_.push_back(OS_PATH_SEPARATOR); |
| } |
| break; |
| case 'n': |
| dependency_file_ninja_ = true; |
| break; |
| case 'S': |
| structured_ = true; |
| break; |
| case 't': |
| gen_traces_ = true; |
| break; |
| case 'a': |
| auto_dep_file_ = true; |
| break; |
| case 'b': |
| fail_on_parcelable_ = true; |
| break; |
| case 'c': |
| gen_transaction_names_ = true; |
| break; |
| case 'v': { |
| const string ver_str = Trim(optarg); |
| int ver = atoi(ver_str.c_str()); |
| if (ver > 0) { |
| version_ = ver; |
| } else { |
| error_message_ << "Invalid version number: '" << ver_str << "'. " |
| << "Version must be a positive natural number." << endl; |
| return; |
| } |
| break; |
| } |
| case 'L': |
| gen_log_ = true; |
| break; |
| case 'e': |
| std::cerr << GetUsage(); |
| exit(0); |
| default: |
| std::cerr << GetUsage(); |
| exit(1); |
| } |
| } // while |
| |
| // Positional arguments |
| if (!lang_option_found && task_ == Options::Task::COMPILE) { |
| // the legacy arguments format |
| if (argc - optind <= 0) { |
| error_message_ << "No input file" << endl; |
| return; |
| } |
| if (language_ == Options::Language::JAVA) { |
| input_files_.emplace_back(argv[optind++]); |
| if (argc - optind >= 1) { |
| output_file_ = argv[optind++]; |
| } else { |
| // when output is omitted, output is by default set to the input |
| // file path with .aidl is replaced to .java. |
| output_file_ = input_files_.front(); |
| if (android::base::EndsWith(output_file_, ".aidl")) { |
| output_file_ = output_file_.substr(0, output_file_.length() - strlen(".aidl")); |
| } |
| output_file_ += ".java"; |
| |
| if (!output_dir_.empty()) { |
| output_file_ = output_dir_ + output_file_; |
| } |
| } |
| } else if (IsCppOutput()) { |
| input_files_.emplace_back(argv[optind++]); |
| if (argc - optind < 2) { |
| error_message_ << "No HEADER_DIR or OUTPUT." << endl; |
| return; |
| } |
| output_header_dir_ = argv[optind++]; |
| if (output_header_dir_.back() != OS_PATH_SEPARATOR) { |
| output_header_dir_.push_back(OS_PATH_SEPARATOR); |
| } |
| output_file_ = argv[optind++]; |
| } |
| if (argc - optind > 0) { |
| error_message_ << "Too many arguments: "; |
| for (int i = optind; i < argc; i++) { |
| error_message_ << " " << argv[i]; |
| } |
| error_message_ << endl; |
| } |
| } else { |
| // the new arguments format |
| if (task_ == Options::Task::COMPILE || task_ == Options::Task::DUMP_API) { |
| if (argc - optind < 1) { |
| error_message_ << "No input file." << endl; |
| return; |
| } |
| } else { |
| if (argc - optind < 2) { |
| error_message_ << "Insufficient arguments. At least 2 required, but " |
| << "got " << (argc - optind) << "." << endl; |
| return; |
| } |
| if (task_ != Options::Task::CHECK_API) { |
| output_file_ = argv[optind++]; |
| } |
| } |
| while (optind < argc) { |
| input_files_.emplace_back(argv[optind++]); |
| } |
| } |
| |
| // filter out invalid combinations |
| if (lang_option_found) { |
| if (IsCppOutput() && task_ == Options::Task::COMPILE) { |
| if (output_dir_.empty()) { |
| error_message_ << "Output directory is not set. Set with --out." << endl; |
| return; |
| } |
| if (output_header_dir_.empty()) { |
| error_message_ << "Header output directory is not set. Set with " |
| << "--header_out." << endl; |
| return; |
| } |
| } |
| if (language_ == Options::Language::JAVA && task_ == Options::Task::COMPILE) { |
| if (output_dir_.empty()) { |
| error_message_ << "Output directory is not set. Set with --out." << endl; |
| return; |
| } |
| if (!output_header_dir_.empty()) { |
| error_message_ << "Header output directory is set, which does not make " |
| << "sense for Java." << endl; |
| return; |
| } |
| } |
| } |
| if (task_ == Options::Task::COMPILE) { |
| for (const string& input : input_files_) { |
| if (!android::base::EndsWith(input, ".aidl")) { |
| error_message_ << "Expected .aidl file for input but got '" << input << "'" << endl; |
| return; |
| } |
| } |
| if (!output_file_.empty() && input_files_.size() > 1) { |
| error_message_ << "Multiple AIDL files can't be compiled to a single " |
| << "output file '" << output_file_ << "'. " |
| << "Use --out=DIR instead for output files." << endl; |
| return; |
| } |
| if (!dependency_file_.empty() && input_files_.size() > 1) { |
| error_message_ << "-d or --dep doesn't work when compiling multiple AIDL " |
| << "files. Use '-a' to generate dependency file next to " |
| << "the output file with the name based on the input " |
| << "file." << endl; |
| return; |
| } |
| if (gen_log_ && language_ != Options::Language::CPP) { |
| error_message_ << "--log is currently supported only for --lang=cpp" << endl; |
| return; |
| } |
| } |
| if (task_ == Options::Task::PREPROCESS) { |
| if (version_ > 0) { |
| error_message_ << "--version should not be used with '--preprocess'." << endl; |
| return; |
| } |
| } |
| if (task_ == Options::Task::CHECK_API) { |
| if (input_files_.size() != 2) { |
| error_message_ << "--checkapi requires two inputs for comparing, " |
| << "but got " << input_files_.size() << "." << endl; |
| return; |
| } |
| } |
| if (task_ == Options::Task::DUMP_API) { |
| if (output_dir_.empty()) { |
| error_message_ << "--dump_api requires output directory. Use --out." << endl; |
| return; |
| } |
| } |
| |
| CHECK(output_dir_.empty() || output_dir_.back() == OS_PATH_SEPARATOR); |
| CHECK(output_header_dir_.empty() || output_header_dir_.back() == OS_PATH_SEPARATOR); |
| } |
| |
| } // namespace android |
| } // namespace aidl |