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Diffstat (limited to 'compiler/cli/src/App.cpp')
-rw-r--r-- | compiler/cli/src/App.cpp | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/compiler/cli/src/App.cpp b/compiler/cli/src/App.cpp new file mode 100644 index 000000000..5052f682a --- /dev/null +++ b/compiler/cli/src/App.cpp @@ -0,0 +1,74 @@ +/* + * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved + * + * 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 "cli/App.h" + +#include <iostream> +#include <cassert> + +namespace cli +{ + +App::App(const std::string &name) : _name{name} +{ + // DO NOTHING +} + +App &App::insert(const std::string &tag, std::unique_ptr<Command> &&command) +{ + assert(_commands.find(tag) == _commands.end()); + + _commands[tag] = std::move(command); + + return (*this); +} + +int App::run(int argc, const char *const *argv) const +{ + if (argc < 1) + { + std::cerr << "ERROR: COMMAND is not provided" << std::endl; + usage(std::cerr); + return 255; + } + + const std::string command{argv[0]}; + + auto it = _commands.find(command); + + if (it == _commands.end()) + { + std::cerr << "ERROR: '" << command << "' is not a valid command" << std::endl; + usage(std::cerr); + return 255; + } + + return it->second->run(argc - 1, argv + 1); +} + +void App::usage(std::ostream &os) const +{ + os << std::endl; + os << "USAGE: " << _name << " [COMMAND] ..." << std::endl; + os << std::endl; + os << "SUPPORTED COMMANDS:" << std::endl; + for (auto it = _commands.begin(); it != _commands.end(); ++it) + { + os << " " << it->first << std::endl; + } +} + +} // namespace cli |