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https://github.com/nestriness/cdc-file-transfer.git
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4326e972ac
The tools allow efficient and fast synchronization of large directory trees from a Windows workstation to a Linux target machine. cdc_rsync* support efficient copy of files by using content-defined chunking (CDC) to identify chunks within files that can be reused. asset_stream_manager + cdc_fuse_fs support efficient streaming of a local directory to a remote virtual file system based on FUSE. It also employs CDC to identify and reuse unchanged data chunks.
108 lines
3.6 KiB
C++
108 lines
3.6 KiB
C++
/*
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* Copyright 2022 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ASSET_STREAM_MANAGER_ASSET_STREAM_CONFIG_H_
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#define ASSET_STREAM_MANAGER_ASSET_STREAM_CONFIG_H_
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#include <map>
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#include <set>
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#include <string>
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#include "absl/status/status.h"
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#include "asset_stream_manager/session_config.h"
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namespace cdc_ft {
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// Class containing all configuration settings for asset streaming.
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// Reads flags from the command line and optionally applies overrides from
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// a json file.
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class AssetStreamConfig {
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public:
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// Constructs the configuration by applying command line flags.
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AssetStreamConfig();
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~AssetStreamConfig();
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// Loads a configuration from the JSON file at |path| and overrides any config
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// values that are set in this file. Sample json file:
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// {
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// "src_dir":"C:\\path\\to\\assets",
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// "verbosity":3,
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// "debug":0,
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// "singlethreaded":0,
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// "stats":0,
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// "quiet":0,
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// "check":0,
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// "log_to_stdout":0,
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// "cache_capacity":"150G",
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// "cleanup_timeout":300,
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// "access_idle_timeout":5,
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// "manifest_updater_threads":4,
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// "file_change_wait_duration_ms":500
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// }
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// Returns NotFoundError if the file does not exist.
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// Returns InvalidArgumentError if the file is not valid JSON.
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absl::Status LoadFromFile(const std::string& path);
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// Returns a string with all config values, suitable for logging.
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std::string ToString();
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// Gets a comma-separated list of flags that were read from the JSON file.
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// These flags override command line flags.
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std::string GetFlagsReadFromFile();
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// Gets a newline-separated list of errors for each flag that could not be
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// read from the JSON file.
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std::string GetFlagReadErrors();
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// Workstation directory to stream. Should usually be empty since mounts are
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// triggered by the CLI or the partner portal via a gRPC call, but useful
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// during development.
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const std::string& src_dir() const { return src_dir_; }
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// IP address of the instance to stream to. Should usually be empty since
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// mounts are triggered by the CLI or the partner portal via a gRPC call, but
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// useful during development.
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const std::string& instance_ip() const { return instance_ip_; }
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// IP address of the instance to stream to. Should usually be unset (0) since
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// mounts are triggered by the CLI or the partner portal via a gRPC call, but
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// useful during development.
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const uint16_t instance_port() const { return instance_port_; }
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// Session configuration.
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const SessionConfig session_cfg() const { return session_cfg_; }
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// Whether to log to a file or to stdout.
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bool log_to_stdout() const { return log_to_stdout_; }
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private:
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std::string src_dir_;
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std::string instance_ip_;
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uint16_t instance_port_ = 0;
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SessionConfig session_cfg_;
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bool log_to_stdout_ = false;
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// Use a set, so the flags are sorted alphabetically.
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std::set<std::string> flags_read_from_file_;
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// Maps flags to errors occurred while reading this flag.
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std::map<std::string, std::string> flag_read_errors_;
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};
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}; // namespace cdc_ft
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#endif // ASSET_STREAM_MANAGER_ASSET_STREAM_CONFIG_H_
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