Rename asset_stream_manager to cdc_stream (#27)

Fixes #13

cdc_stream/local_assets_stream_manager_client.h

@@ -0,0 +1,77 @@
+/*
+ * 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.
+ */
+
+#ifndef CDC_STREAM_LOCAL_ASSETS_STREAM_MANAGER_CLIENT_H_
+#define CDC_STREAM_LOCAL_ASSETS_STREAM_MANAGER_CLIENT_H_
+
+#include <memory>
+
+#include "absl/status/status.h"
+#include "grpcpp/channel.h"
+#include "proto/local_assets_stream_manager.grpc.pb.h"
+
+namespace grpc_impl {
+class Channel;
+}
+
+namespace cdc_ft {
+
+// gRpc client for starting/stopping asset streaming sessions.
+class LocalAssetsStreamManagerClient {
+ public:
+  explicit LocalAssetsStreamManagerClient(uint16_t service_port);
+
+  // |channel| is a grpc channel to use.
+  explicit LocalAssetsStreamManagerClient(
+      std::shared_ptr<grpc::Channel> channel);
+
+  ~LocalAssetsStreamManagerClient();
+
+  // Starts streaming |src_dir| to |user_host|:|mount_dir|.
+  // Starting a second session to the same target will stop the first one.
+  // |src_dir| is the Windows source directory to stream.
+  // |user_host| is the Linux host, formatted as [user@:host].
+  // |ssh_port| is the SSH port to use while connecting to the host.
+  // |mount_dir| is the Linux target directory to stream to.
+  // |ssh_command| is the ssh command and extra arguments to use.
+  // |scp_command| is the scp command and extra arguments to use.
+  absl::Status StartSession(const std::string& src_dir,
+                            const std::string& user_host, uint16_t ssh_port,
+                            const std::string& mount_dir,
+                            const std::string& ssh_command,
+                            const std::string& scp_command);
+
+  // Stops the streaming session to the Linux target |user_host|:|mount_dir|.
+  // |user_host| is the Linux host, formatted as [user@:host].
+  // |mount_dir| is the Linux target directory.
+  absl::Status StopSession(const std::string& user_host,
+                           const std::string& mount_dir);
+
+  // Helper function that splits "user@host:dir" into "user@host" and "dir".
+  // Does not think that C: is a host.
+  static absl::Status ParseUserHostDir(const std::string& user_host_dir,
+                                       std::string* user_host,
+                                       std::string* dir);
+
+ private:
+  using LocalAssetsStreamManager =
+      localassetsstreammanager::LocalAssetsStreamManager;
+  std::unique_ptr<LocalAssetsStreamManager::Stub> stub_;
+};
+
+}  // namespace cdc_ft
+
+#endif  // CDC_STREAM_LOCAL_ASSETS_STREAM_MANAGER_CLIENT_H_