Rename asset_stream_manager to cdc_stream (#27)

Fixes #13

cdc_stream/main.cc

@@ -0,0 +1,51 @@
+// Copyright 2022 Google LLC
+//
+// 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 "cdc_stream/start_command.h"
+#include "cdc_stream/start_service_command.h"
+#include "cdc_stream/stop_command.h"
+#include "lyra/lyra.hpp"
+
+int main(int argc, char* argv[]) {
+  // Set up commands.
+  auto cli = lyra::cli();
+  bool show_help = false;
+  int exit_code = -1;
+  cli.add_argument(lyra::help(show_help));
+
+  cdc_ft::StartCommand start_cmd(&exit_code);
+  start_cmd.Register(cli);
+
+  cdc_ft::StopCommand stop_cmd(&exit_code);
+  stop_cmd.Register(cli);
+
+  cdc_ft::StartServiceCommand start_service_cmd(&exit_code);
+  start_service_cmd.Register(cli);
+
+  // Parse args and run. Note that parse actually runs the commands.
+  // exit_code is -1 if no command was run.
+  auto result = cli.parse({argc, argv});
+  if (show_help || exit_code == -1) {
+    std::cout << cli;
+    return 0;
+  }
+  if (!result) {
+    // Parse error.
+    std::cerr << "Error: " << result.message() << std::endl;
+    return 1;
+  }
+  // If cli.parse() succeeds, it also runs the commands and writes |exit_code|.
+
+  return exit_code;
+}