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