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[cdc_stream] Switch asset_stream_manager to use Lyra (#25)

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Switch asset_stream_manager to use Lyra

Lyra has a nice simple interface, but a few quirks that we work
around, mainly in the BaseCommand class:
- It does not support return values from running a command.
- It does not support return values from a custom arg parser.
- Lyra interprets --bad_arg as positional argument.

Fixes #15
This commit is contained in:
Lutz Justen
2022-12-01 10:36:48 +01:00
committed by GitHub
parent 7d7fcc67b9
commit a381541d1b
11 changed files with 631 additions and 291 deletions
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12
WORKSPACE
View File

@@ -47,10 +47,10 @@ http_archive(
http_archive( http_archive(
name = "com_github_fuse", name = "com_github_fuse",
build_file = "@//third_party/fuse:BUILD", build_file = "@//third_party/fuse:BUILD",
sha256 = "832432d1ad4f833c20e13b57cf40ce5277a9d33e483205fc63c78111b3358874",
strip_prefix = "fuse-2.9.7",
patch_args = ["-p1"], patch_args = ["-p1"],
patches = ["@//third_party/fuse:disable_symbol_versioning.patch"], patches = ["@//third_party/fuse:disable_symbol_versioning.patch"],
sha256 = "832432d1ad4f833c20e13b57cf40ce5277a9d33e483205fc63c78111b3358874",
strip_prefix = "fuse-2.9.7",
url = "https://github.com/libfuse/libfuse/releases/download/fuse-2.9.7/fuse-2.9.7.tar.gz", url = "https://github.com/libfuse/libfuse/releases/download/fuse-2.9.7/fuse-2.9.7.tar.gz",
) )
@@ -70,6 +70,14 @@ http_archive(
url = "https://github.com/tronkko/dirent/archive/refs/tags/1.23.2.tar.gz", url = "https://github.com/tronkko/dirent/archive/refs/tags/1.23.2.tar.gz",
) )
http_archive(
name = "com_github_lyra",
build_file = "@//third_party/lyra:BUILD.bazel",
sha256 = "a93f247ed89eba11ca36eb24c4f8ba7be636bf24e74aaaa8e1066e0954bec7e3",
strip_prefix = "Lyra-1.6.1",
url = "https://github.com/bfgroup/Lyra/archive/refs/tags/1.6.1.tar.gz",
)
local_repository( local_repository(
name = "com_google_absl", name = "com_google_absl",
path = "third_party/absl", path = "third_party/absl",

4
all_files.vcxitems
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@@ -18,6 +18,7 @@
<ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\asset_stream_config.cc" /> <ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\asset_stream_config.cc" />
<ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\asset_stream_server.cc" /> <ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\asset_stream_server.cc" />
<ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\background_service_impl.cc" /> <ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\background_service_impl.cc" />
<ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\base_command.cc" />
<ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\cdc_fuse_manager.cc" /> <ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\cdc_fuse_manager.cc" />
<ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\grpc_asset_stream_server.cc" /> <ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\grpc_asset_stream_server.cc" />
<ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\local_assets_stream_manager_service_impl.cc" /> <ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\local_assets_stream_manager_service_impl.cc" />
@@ -29,6 +30,7 @@
<ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\session.cc" /> <ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\session.cc" />
<ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\session_management_server.cc" /> <ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\session_management_server.cc" />
<ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\session_manager.cc" /> <ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\session_manager.cc" />
<ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\start_service_command.cc" />
<ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\testing_asset_stream_server.cc" /> <ClCompile Include="$(MSBuildThisFileDirectory)asset_stream_manager\testing_asset_stream_server.cc" />
<ClCompile Include="$(MSBuildThisFileDirectory)cdc_fuse_fs\asset.cc" /> <ClCompile Include="$(MSBuildThisFileDirectory)cdc_fuse_fs\asset.cc" />
<ClCompile Include="$(MSBuildThisFileDirectory)cdc_fuse_fs\asset_stream_client.cc" /> <ClCompile Include="$(MSBuildThisFileDirectory)cdc_fuse_fs\asset_stream_client.cc" />
@@ -145,6 +147,7 @@
<ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\asset_stream_config.h" /> <ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\asset_stream_config.h" />
<ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\asset_stream_server.h" /> <ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\asset_stream_server.h" />
<ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\background_service_impl.h" /> <ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\background_service_impl.h" />
<ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\base_command.h" />
<ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\cdc_fuse_manager.h" /> <ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\cdc_fuse_manager.h" />
<ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\grpc_asset_stream_server.h" /> <ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\grpc_asset_stream_server.h" />
<ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\local_assets_stream_manager_service_impl.h" /> <ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\local_assets_stream_manager_service_impl.h" />
@@ -154,6 +157,7 @@
<ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\session_config.h" /> <ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\session_config.h" />
<ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\session_management_server.h" /> <ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\session_management_server.h" />
<ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\session_manager.h" /> <ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\session_manager.h" />
<ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\start_service_command.h" />
<ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\testing_asset_stream_server.h" /> <ClInclude Include="$(MSBuildThisFileDirectory)asset_stream_manager\testing_asset_stream_server.h" />
<ClInclude Include="$(MSBuildThisFileDirectory)cdc_fuse_fs\asset.h" /> <ClInclude Include="$(MSBuildThisFileDirectory)cdc_fuse_fs\asset.h" />
<ClInclude Include="$(MSBuildThisFileDirectory)cdc_fuse_fs\asset_stream_client.h" /> <ClInclude Include="$(MSBuildThisFileDirectory)cdc_fuse_fs\asset_stream_client.h" />

26
asset_stream_manager/BUILD
View File

@@ -7,12 +7,28 @@ cc_binary(
srcs = ["main.cc"], srcs = ["main.cc"],
data = [":roots_pem"], data = [":roots_pem"],
deps = [ deps = [
":asset_stream_config", ":commands",
":session_management_server",
"//cdc_stream", "//cdc_stream",
"//common:log", "//common:log",
"//common:path", "//common:path",
"//data_store:data_provider", ],
)
cc_library(
name = "commands",
srcs = [
"base_command.cc",
"start_service_command.cc",
],
hdrs = [
"base_command.h",
"start_service_command.h",
],
deps = [
":asset_stream_config",
":session_management_server",
"@com_github_lyra//:lyra",
"@com_google_absl//absl/status",
], ],
) )
@@ -53,8 +69,10 @@ cc_library(
"//common:log", "//common:log",
"//common:path", "//common:path",
"//common:status_macros", "//common:status_macros",
"//data_store:data_provider",
"//data_store:disk_data_store",
"@com_github_jsoncpp//:jsoncpp", "@com_github_jsoncpp//:jsoncpp",
"@com_google_absl//absl/flags:parse", "@com_github_lyra//:lyra",
], ],
) )

251
asset_stream_manager/asset_stream_config.cc
View File

@@ -16,83 +16,139 @@
#include <sstream> #include <sstream>
#include "absl/flags/flag.h"
#include "absl/flags/parse.h"
#include "absl/strings/str_format.h" #include "absl/strings/str_format.h"
#include "absl/strings/str_join.h" #include "absl/strings/str_join.h"
#include "absl_helper/jedec_size_flag.h" #include "absl_helper/jedec_size_flag.h"
#include "common/buffer.h" #include "common/buffer.h"
#include "common/path.h" #include "common/path.h"
#include "common/status_macros.h" #include "common/status_macros.h"
#include "data_store/data_provider.h"
#include "data_store/disk_data_store.h"
#include "json/json.h" #include "json/json.h"
#include "lyra/lyra.hpp"
ABSL_DECLARE_FLAG(int, verbosity);
ABSL_DECLARE_FLAG(bool, debug);
ABSL_DECLARE_FLAG(bool, singlethreaded);
ABSL_DECLARE_FLAG(bool, stats);
ABSL_DECLARE_FLAG(bool, quiet);
ABSL_DECLARE_FLAG(bool, check);
ABSL_DECLARE_FLAG(bool, log_to_stdout);
ABSL_DECLARE_FLAG(cdc_ft::JedecSize, cache_capacity);
ABSL_DECLARE_FLAG(uint32_t, cleanup_timeout);
ABSL_DECLARE_FLAG(uint32_t, access_idle_timeout);
ABSL_DECLARE_FLAG(int, manifest_updater_threads);
ABSL_DECLARE_FLAG(int, file_change_wait_duration_ms);
// Development flags.
ABSL_DECLARE_FLAG(std::string, dev_src_dir);
ABSL_DECLARE_FLAG(std::string, dev_user_host);
ABSL_DECLARE_FLAG(uint16_t, dev_ssh_port);
ABSL_DECLARE_FLAG(std::string, dev_ssh_command);
ABSL_DECLARE_FLAG(std::string, dev_scp_command);
ABSL_DECLARE_FLAG(std::string, dev_mount_dir);
// Declare AS20 flags, so that AS30 can be used on older SDKs simply by
// replacing the binary. Note that the RETIRED_FLAGS macro can't be used
// because the flags contain dashes. This code mimics the macro.
absl::flags_internal::RetiredFlag<std::string> RETIRED_FLAGS_session_ports;
absl::flags_internal::RetiredFlag<std::string> RETIRED_FLAGS_gm_mount_point;
absl::flags_internal::RetiredFlag<bool> RETIRED_FLAGS_allow_edge;
const auto RETIRED_FLAGS_REG_session_ports =
(RETIRED_FLAGS_session_ports.Retire("session-ports"),
::absl::flags_internal::FlagRegistrarEmpty{});
const auto RETIRED_FLAGS_REG_gm_mount_point =
(RETIRED_FLAGS_gm_mount_point.Retire("gamelet-mount-point"),
::absl::flags_internal::FlagRegistrarEmpty{});
const auto RETIRED_FLAGS_REG_allow_edge =
(RETIRED_FLAGS_allow_edge.Retire("allow-edge"),
::absl::flags_internal::FlagRegistrarEmpty{});
namespace cdc_ft { namespace cdc_ft {
namespace {
constexpr int kDefaultVerbosity = 2;
constexpr uint32_t kDefaultManifestUpdaterThreads = 4;
constexpr uint32_t kDefaultFileChangeWaitDurationMs = 500;
} // namespace
AssetStreamConfig::AssetStreamConfig() { AssetStreamConfig::AssetStreamConfig() = default;
session_cfg_.verbosity = absl::GetFlag(FLAGS_verbosity);
session_cfg_.fuse_debug = absl::GetFlag(FLAGS_debug);
session_cfg_.fuse_singlethreaded = absl::GetFlag(FLAGS_singlethreaded);
session_cfg_.stats = absl::GetFlag(FLAGS_stats);
session_cfg_.quiet = absl::GetFlag(FLAGS_quiet);
session_cfg_.fuse_check = absl::GetFlag(FLAGS_check);
log_to_stdout_ = absl::GetFlag(FLAGS_log_to_stdout);
session_cfg_.fuse_cache_capacity = absl::GetFlag(FLAGS_cache_capacity).Size();
session_cfg_.fuse_cleanup_timeout_sec = absl::GetFlag(FLAGS_cleanup_timeout);
session_cfg_.fuse_access_idle_timeout_sec =
absl::GetFlag(FLAGS_access_idle_timeout);
session_cfg_.manifest_updater_threads =
absl::GetFlag(FLAGS_manifest_updater_threads);
session_cfg_.file_change_wait_duration_ms =
absl::GetFlag(FLAGS_file_change_wait_duration_ms);
dev_src_dir_ = absl::GetFlag(FLAGS_dev_src_dir);
dev_target_.user_host = absl::GetFlag(FLAGS_dev_user_host);
dev_target_.ssh_port = absl::GetFlag(FLAGS_dev_ssh_port);
dev_target_.ssh_command = absl::GetFlag(FLAGS_dev_ssh_command);
dev_target_.scp_command = absl::GetFlag(FLAGS_dev_scp_command);
dev_target_.mount_dir = absl::GetFlag(FLAGS_dev_mount_dir);
}
AssetStreamConfig::~AssetStreamConfig() = default; AssetStreamConfig::~AssetStreamConfig() = default;
void AssetStreamConfig::RegisterCommandLineFlags(lyra::command& cmd) {
session_cfg_.verbosity = kDefaultVerbosity;
cmd.add_argument(lyra::opt(session_cfg_.verbosity, "num")
.name("--verbosity")
.help("Verbosity of the log output, default: " +
std::to_string(kDefaultVerbosity)));
cmd.add_argument(
lyra::opt(session_cfg_.stats)
.name("--stats")
.help("Collect and print detailed streaming statistics"));
cmd.add_argument(
lyra::opt(session_cfg_.quiet)
.name("--quiet")
.help("Do not print any output except errors and stats"));
session_cfg_.manifest_updater_threads = kDefaultManifestUpdaterThreads;
cmd.add_argument(lyra::opt(session_cfg_.manifest_updater_threads, "count")
.name("--manifest-updater-threads")
.help("Number of threads used to compute file hashes on "
"the workstation, default: " +
std::to_string(kDefaultManifestUpdaterThreads)));
session_cfg_.file_change_wait_duration_ms = kDefaultFileChangeWaitDurationMs;
cmd.add_argument(
lyra::opt(session_cfg_.file_change_wait_duration_ms, "ms")
.name("--file-change-wait-duration-ms")
.help("Time in milliseconds to wait until pushing a file change "
"to the instance after detecting it, default: " +
std::to_string(kDefaultFileChangeWaitDurationMs)));
cmd.add_argument(lyra::opt(session_cfg_.fuse_debug)
.name("--debug")
.help("Run FUSE filesystem in debug mode"));
cmd.add_argument(lyra::opt(session_cfg_.fuse_singlethreaded)
.name("--singlethreaded")
.optional()
.help("Run FUSE filesystem in single-threaded mode"));
cmd.add_argument(lyra::opt(session_cfg_.fuse_check)
.name("--check")
.help("Check FUSE consistency and log check results"));
session_cfg_.fuse_cache_capacity = DiskDataStore::kDefaultCapacity;
cmd.add_argument(lyra::opt(JedecParser("--cache-capacity",
&session_cfg_.fuse_cache_capacity),
"bytes")
.name("--cache-capacity")
.help("FUSE cache capacity, default: " +
std::to_string(DiskDataStore::kDefaultCapacity) +
". Supports common unit suffixes K, M, G."));
session_cfg_.fuse_cleanup_timeout_sec = DataProvider::kCleanupTimeoutSec;
cmd.add_argument(
lyra::opt(session_cfg_.fuse_cleanup_timeout_sec, "sec")
.name("--cleanup-timeout")
.help("Period in seconds at which instance cache cleanups are run, "
"default: " +
std::to_string(DataProvider::kCleanupTimeoutSec)));
session_cfg_.fuse_access_idle_timeout_sec = DataProvider::kAccessIdleSec;
cmd.add_argument(
lyra::opt(session_cfg_.fuse_access_idle_timeout_sec, "sec")
.name("--access-idle-timeout")
.help("Do not run instance cache cleanups for this long after the "
"last file access, default: " +
std::to_string(DataProvider::kAccessIdleSec)));
cmd.add_argument(lyra::opt(log_to_stdout_)
.name("--log-to-stdout")
.help("Log to stdout instead of to a file"));
cmd.add_argument(
lyra::opt(dev_src_dir_, "dir")
.name("--dev-src-dir")
.help("Start a streaming session immediately from the given Windows "
"path. Used during development. Must also specify other --dev "
"flags."));
cmd.add_argument(
lyra::opt(dev_target_.user_host, "[user@]host")
.name("--dev-user-host")
.help("Username and host to stream to. See also --dev-src-dir."));
dev_target_.ssh_port = RemoteUtil::kDefaultSshPort;
cmd.add_argument(
lyra::opt(dev_target_.ssh_port, "port")
.name("--dev-ssh-port")
.help("SSH port to use for the connection to the host, default: " +
std::to_string(RemoteUtil::kDefaultSshPort) +
". See also --dev-src-dir."));
cmd.add_argument(
lyra::opt(dev_target_.ssh_command, "cmd")
.name("--dev-ssh-command")
.help("Ssh command and extra flags to use for the "
"connection to the host. See also --dev-src-dir."));
cmd.add_argument(
lyra::opt(dev_target_.scp_command, "cmd")
.name("--dev-scp-command")
.help("Scp command and extra flags to use for the "
"connection to the host. See also --dev-src-dir."));
cmd.add_argument(
lyra::opt(dev_target_.mount_dir, "dir")
.name("--dev-mount-dir")
.help("Directory on the host to stream to. See also --dev-src-dir."));
}
absl::Status AssetStreamConfig::LoadFromFile(const std::string& path) { absl::Status AssetStreamConfig::LoadFromFile(const std::string& path) {
Buffer buffer; Buffer buffer;
RETURN_IF_ERROR(path::ReadFile(path, &buffer)); RETURN_IF_ERROR(path::ReadFile(path, &buffer));
@@ -108,29 +164,29 @@ absl::Status AssetStreamConfig::LoadFromFile(const std::string& path) {
#define ASSIGN_VAR(var, flag, type) \ #define ASSIGN_VAR(var, flag, type) \
do { \ do { \
if (config.isMember(#flag)) { \ if (config.isMember(flag)) { \
var = config[#flag].as##type(); \ var = config[flag].as##type(); \
flags_read_from_file_.insert(#flag); \ flags_read_from_file_.insert(flag); \
} \ } \
} while (0) } while (0)
ASSIGN_VAR(session_cfg_.verbosity, verbosity, Int); ASSIGN_VAR(session_cfg_.verbosity, "verbosity", Int);
ASSIGN_VAR(session_cfg_.fuse_debug, debug, Bool); ASSIGN_VAR(session_cfg_.fuse_debug, "debug", Bool);
ASSIGN_VAR(session_cfg_.fuse_singlethreaded, singlethreaded, Bool); ASSIGN_VAR(session_cfg_.fuse_singlethreaded, "singlethreaded", Bool);
ASSIGN_VAR(session_cfg_.stats, stats, Bool); ASSIGN_VAR(session_cfg_.stats, "stats", Bool);
ASSIGN_VAR(session_cfg_.quiet, quiet, Bool); ASSIGN_VAR(session_cfg_.quiet, "quiet", Bool);
ASSIGN_VAR(session_cfg_.fuse_check, check, Bool); ASSIGN_VAR(session_cfg_.fuse_check, "check", Bool);
ASSIGN_VAR(log_to_stdout_, log_to_stdout, Bool); ASSIGN_VAR(log_to_stdout_, "log-to-stdout", Bool);
ASSIGN_VAR(session_cfg_.fuse_cleanup_timeout_sec, cleanup_timeout, Int); ASSIGN_VAR(session_cfg_.fuse_cleanup_timeout_sec, "cleanup-timeout", Int);
ASSIGN_VAR(session_cfg_.fuse_access_idle_timeout_sec, access_idle_timeout, ASSIGN_VAR(session_cfg_.fuse_access_idle_timeout_sec, "access-idle-timeout",
Int); Int);
ASSIGN_VAR(session_cfg_.manifest_updater_threads, manifest_updater_threads, ASSIGN_VAR(session_cfg_.manifest_updater_threads, "manifest-updater-threads",
Int); Int);
ASSIGN_VAR(session_cfg_.file_change_wait_duration_ms, ASSIGN_VAR(session_cfg_.file_change_wait_duration_ms,
file_change_wait_duration_ms, Int); "file-change-wait-duration-ms", Int);
// cache_capacity requires Jedec size conversion. // cache_capacity requires Jedec size conversion.
constexpr char kCacheCapacity[] = "cache_capacity"; constexpr char kCacheCapacity[] = "cache-capacity";
if (config.isMember(kCacheCapacity)) { if (config.isMember(kCacheCapacity)) {
JedecSize cache_capacity; JedecSize cache_capacity;
std::string error; std::string error;
@@ -162,25 +218,25 @@ std::string AssetStreamConfig::ToString() {
ss << "quiet = " << session_cfg_.quiet << std::endl; ss << "quiet = " << session_cfg_.quiet << std::endl;
ss << "check = " << session_cfg_.fuse_check ss << "check = " << session_cfg_.fuse_check
<< std::endl; << std::endl;
ss << "log_to_stdout = " << log_to_stdout_ << std::endl; ss << "log-to-stdout = " << log_to_stdout_ << std::endl;
ss << "cache_capacity = " << session_cfg_.fuse_cache_capacity ss << "cache-capacity = " << session_cfg_.fuse_cache_capacity
<< std::endl; << std::endl;
ss << "cleanup_timeout = " ss << "cleanup-timeout = "
<< session_cfg_.fuse_cleanup_timeout_sec << std::endl; << session_cfg_.fuse_cleanup_timeout_sec << std::endl;
ss << "access_idle_timeout = " ss << "access-idle-timeout = "
<< session_cfg_.fuse_access_idle_timeout_sec << std::endl; << session_cfg_.fuse_access_idle_timeout_sec << std::endl;
ss << "manifest_updater_threads = " ss << "manifest-updater-threads = "
<< session_cfg_.manifest_updater_threads << std::endl; << session_cfg_.manifest_updater_threads << std::endl;
ss << "file_change_wait_duration_ms = " ss << "file-change-wait-duration-ms = "
<< session_cfg_.file_change_wait_duration_ms << std::endl; << session_cfg_.file_change_wait_duration_ms << std::endl;
ss << "dev_src_dir = " << dev_src_dir_ << std::endl; ss << "dev-src-dir = " << dev_src_dir_ << std::endl;
ss << "dev_user_host = " << dev_target_.user_host << std::endl; ss << "dev-user-host = " << dev_target_.user_host << std::endl;
ss << "dev_ssh_port = " << dev_target_.ssh_port << std::endl; ss << "dev-ssh-port = " << dev_target_.ssh_port << std::endl;
ss << "dev_ssh_command = " << dev_target_.ssh_command ss << "dev-ssh-command = " << dev_target_.ssh_command
<< std::endl; << std::endl;
ss << "dev_scp_command = " << dev_target_.scp_command ss << "dev-scp-command = " << dev_target_.scp_command
<< std::endl; << std::endl;
ss << "dev_mount_dir = " << dev_target_.mount_dir << std::endl; ss << "dev-mount-dir = " << dev_target_.mount_dir << std::endl;
return ss.str(); return ss.str();
} }
@@ -195,5 +251,18 @@ std::string AssetStreamConfig::GetFlagReadErrors() {
error_str.empty() ? "" : "\n", flag, error); error_str.empty() ? "" : "\n", flag, error);
return error_str; return error_str;
} }
std::function<void(const std::string&)> AssetStreamConfig::JedecParser(
const char* flag_name, uint64_t* bytes) {
return [flag_name, bytes,
error = &jedec_parse_error_](const std::string& value) {
JedecSize size;
if (AbslParseFlag(value, &size, error)) {
*bytes = size.Size();
} else {
*error = absl::StrFormat("Failed to parse --%s=%s: %s", flag_name, value,
*error);
}
};
}
} // namespace cdc_ft } // namespace cdc_ft

19
asset_stream_manager/asset_stream_config.h
View File

@@ -25,6 +25,10 @@
#include "asset_stream_manager/session_config.h" #include "asset_stream_manager/session_config.h"
#include "session.h" #include "session.h"
namespace lyra {
class command;
}
namespace cdc_ft { namespace cdc_ft {
// Class containing all configuration settings for asset streaming. // Class containing all configuration settings for asset streaming.
@@ -36,6 +40,9 @@ class AssetStreamConfig {
AssetStreamConfig(); AssetStreamConfig();
~AssetStreamConfig(); ~AssetStreamConfig();
// Registers arguments with Lyra.
void RegisterCommandLineFlags(lyra::command& cmd);
// Loads a configuration from the JSON file at |path| and overrides any config // Loads a configuration from the JSON file at |path| and overrides any config
// values that are set in this file. Sample json file: // values that are set in this file. Sample json file:
// { // {
@@ -81,7 +88,16 @@ class AssetStreamConfig {
// Whether to log to a file or to stdout. // Whether to log to a file or to stdout.
bool log_to_stdout() const { return log_to_stdout_; } bool log_to_stdout() const { return log_to_stdout_; }
// Workaround for Lyra not accepting errors from parsers.
const std::string& jedec_parse_error() const { return jedec_parse_error_; }
private: private:
// Jedec parser for Lyra options. Usage:
// lyra::opt(JedecParser("size-flag", &size_bytes), "bytes"))
// Sets jedec_parse_error_ on error, Lyra doesn't support errors from lambdas.
std::function<void(const std::string&)> JedecParser(const char* flag_name,
uint64_t* bytes);
SessionConfig session_cfg_; SessionConfig session_cfg_;
bool log_to_stdout_ = false; bool log_to_stdout_ = false;
@@ -95,6 +111,9 @@ class AssetStreamConfig {
// Maps flags to errors occurred while reading this flag. // Maps flags to errors occurred while reading this flag.
std::map<std::string, std::string> flag_read_errors_; std::map<std::string, std::string> flag_read_errors_;
// Errors from parsing JEDEC sizes.
std::string jedec_parse_error_;
}; };
}; // namespace cdc_ft }; // namespace cdc_ft

71
asset_stream_manager/base_command.cc Normal file
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@@ -0,0 +1,71 @@
// 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 "asset_stream_manager/base_command.h"
#include "lyra/lyra.hpp"
namespace cdc_ft {
BaseCommand::BaseCommand(std::string name, std::string help, int* exit_code)
: name_(name), help_(help), exit_code_(exit_code) {
assert(exit_code_);
}
BaseCommand::~BaseCommand() = default;
void BaseCommand::Register(lyra::cli& cli) {
lyra::command cmd(name_,
[this](const lyra::group& g) { this->CommandHandler(g); });
cmd.help(help_);
cmd.add_argument(lyra::help(show_help_));
RegisterCommandLineFlags(cmd);
// Workaround for Lyra treating --unknown_flags as positional argument.
// If this argument is not empty, it's an unknown arg.
cmd.add_argument(lyra::arg(invalid_arg_, ""));
// Register command with CLI.
cli.add_argument(std::move(cmd));
}
void BaseCommand::CommandHandler(const lyra::group& g) {
// Handle -h, --help.
if (show_help_) {
std::cout << g;
*exit_code_ = 0;
return;
}
// Handle invalid arguments.
if (!invalid_arg_.empty()) {
std::cerr << "Error: Unknown parameter '" << invalid_arg_
<< "'. Try -h for help." << std::endl;
*exit_code_ = 1;
return;
}
// Run and print error.
absl::Status status = Run();
if (!status.ok()) {
std::cerr << "Error: " << status.message() << std::endl;
}
// Write status code to |exit_code_|.
static_assert(static_cast<int>(absl::StatusCode::kOk) == 0, "kOk not 0");
*exit_code_ = static_cast<int>(status.code());
}
} // namespace cdc_ft

73
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@@ -0,0 +1,73 @@
/*
* 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 ASSET_STREAM_MANAGER_BASE_COMMAND_H_
#define ASSET_STREAM_MANAGER_BASE_COMMAND_H_
#include <string>
#include "absl/status/status.h"
namespace lyra {
class cli;
class command;
class group;
} // namespace lyra
namespace cdc_ft {
// Base class for commands that wraps Lyra commands to reduce common
// boilerplate like help text display, invalid args and return values from
// command execution.
class BaseCommand {
public:
// Creates a new command with given |name| and |help| text. After the command
// ran, the status code as returned by Run() is written to |exit_code|.
BaseCommand(std::string name, std::string help, int* exit_code);
~BaseCommand();
// Registers the command with Lyra. Must be called before parsing args.
void Register(lyra::cli& cli);
protected:
// Adds all optional and required arguments used by the command.
// Called by Register().
virtual void RegisterCommandLineFlags(lyra::command& cmd) = 0;
// Runs the command. Called by lyra::cli::parse() when this command is
// actually triggered and all flags have been parsed successfully.
virtual absl::Status Run() = 0;
private:
// Called by lyra::cli::parse() after successfully parsing arguments. Catches
// unknown arguments (Lyra interprets those as positional args, not as an
// error!), and displays the help text if appropriate, otherwise calls Run().
void CommandHandler(const lyra::group& g);
std::string name_;
std::string help_;
int* exit_code_ = nullptr;
bool show_help_ = false;
// Workaround for invalid args. Lyra doesn't interpret --invalid as invalid
// argument, but as positional argument "--invalid".
std::string invalid_arg_;
};
} // namespace cdc_ft
#endif // ASSET_STREAM_MANAGER_BASE_COMMAND_H_

212
asset_stream_manager/main.cc
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@@ -12,202 +12,32 @@
// See the License for the specific language governing permissions and // See the License for the specific language governing permissions and
// limitations under the License. // limitations under the License.
#include "absl/flags/flag.h" #include "asset_stream_manager/start_service_command.h"
#include "absl/flags/parse.h" #include "lyra/lyra.hpp"
#include "absl_helper/jedec_size_flag.h"
#include "asset_stream_manager/asset_stream_config.h"
#include "asset_stream_manager/background_service_impl.h"
#include "asset_stream_manager/local_assets_stream_manager_service_impl.h"
#include "asset_stream_manager/session_management_server.h"
#include "asset_stream_manager/session_manager.h"
#include "common/grpc_status.h"
#include "common/log.h"
#include "common/path.h"
#include "common/process.h"
#include "common/status_macros.h"
#include "data_store/data_provider.h"
#include "data_store/disk_data_store.h"
#include "metrics/metrics.h"
namespace cdc_ft {
namespace {
constexpr int kSessionManagementPort = 44432;
absl::Status Run(const AssetStreamConfig& cfg) {
WinProcessFactory process_factory;
metrics::MetricsService metrics_service;
SessionManager session_manager(cfg.session_cfg(), &process_factory,
&metrics_service);
BackgroundServiceImpl background_service;
LocalAssetsStreamManagerServiceImpl session_service(
&session_manager, &process_factory, &metrics_service);
SessionManagementServer sm_server(&session_service, &background_service,
&session_manager);
background_service.SetExitCallback(
[&sm_server]() { return sm_server.Shutdown(); });
if (!cfg.dev_src_dir().empty()) {
localassetsstreammanager::StartSessionRequest request;
request.set_workstation_directory(cfg.dev_src_dir());
request.set_user_host(cfg.dev_target().user_host);
request.set_mount_dir(cfg.dev_target().mount_dir);
request.set_port(cfg.dev_target().ssh_port);
request.set_ssh_command(cfg.dev_target().ssh_command);
request.set_scp_command(cfg.dev_target().scp_command);
localassetsstreammanager::StartSessionResponse response;
RETURN_ABSL_IF_ERROR(
session_service.StartSession(nullptr, &request, &response));
}
RETURN_IF_ERROR(sm_server.Start(kSessionManagementPort));
sm_server.RunUntilShutdown();
return absl::OkStatus();
}
std::string GetLogPath(const char* log_dir, const char* log_base_name) {
DefaultSystemClock* clock = DefaultSystemClock::GetInstance();
std::string timestamp_ext = clock->FormatNow(".%Y%m%d-%H%M%S.log", false);
return path::Join(log_dir, log_base_name + timestamp_ext);
}
void InitLogging(std::string& log_dir, bool log_to_stdout, int verbosity) {
LogLevel level = cdc_ft::Log::VerbosityToLogLevel(verbosity);
if (log_to_stdout) {
cdc_ft::Log::Initialize(std::make_unique<cdc_ft::ConsoleLog>(level));
} else {
if (path::ExpandPathVariables(&log_dir).ok() &&
path::CreateDirRec(log_dir).ok()) {
cdc_ft::Log::Initialize(std::make_unique<cdc_ft::FileLog>(
level, GetLogPath(log_dir.c_str(), "assets_stream_manager").c_str()));
} else {
LOG_ERROR("Failed to create log directory '%s'", log_dir);
exit(1);
}
}
}
// Declare AS20 flags, so that AS30 can be used on older SDKs simply by
// replacing the binary. Note that the RETIRED_FLAGS macro can't be used
// because the flags contain dashes. This code mimics the macro.
absl::flags_internal::RetiredFlag<int> RETIRED_FLAGS_port;
absl::flags_internal::RetiredFlag<std::string> RETIRED_FLAGS_session_ports;
absl::flags_internal::RetiredFlag<std::string> RETIRED_FLAGS_gm_mount_point;
absl::flags_internal::RetiredFlag<bool> RETIRED_FLAGS_allow_edge;
const auto RETIRED_FLAGS_REG_port =
(RETIRED_FLAGS_port.Retire("port"),
::absl::flags_internal::FlagRegistrarEmpty{});
const auto RETIRED_FLAGS_REG_session_ports =
(RETIRED_FLAGS_session_ports.Retire("session-ports"),
::absl::flags_internal::FlagRegistrarEmpty{});
const auto RETIRED_FLAGS_REG_gm_mount_point =
(RETIRED_FLAGS_gm_mount_point.Retire("gamelet-mount-point"),
::absl::flags_internal::FlagRegistrarEmpty{});
const auto RETIRED_FLAGS_REG_allow_edge =
(RETIRED_FLAGS_allow_edge.Retire("allow-edge"),
::absl::flags_internal::FlagRegistrarEmpty{});
} // namespace
} // namespace cdc_ft
ABSL_FLAG(int, verbosity, 2, "Verbosity of the log output");
ABSL_FLAG(bool, debug, false, "Run FUSE filesystem in debug mode");
ABSL_FLAG(bool, singlethreaded, false,
"Run FUSE filesystem in singlethreaded mode");
ABSL_FLAG(bool, stats, false,
"Collect and print detailed streaming statistics");
ABSL_FLAG(bool, quiet, false,
"Do not print any output except errors and stats");
ABSL_FLAG(int, manifest_updater_threads, 4,
"Number of threads used to compute file hashes on the workstation.");
ABSL_FLAG(int, file_change_wait_duration_ms, 500,
"Time in milliseconds to wait until pushing a file change to the "
"instance after detecting it");
ABSL_FLAG(bool, check, false, "Check FUSE consistency and log check results");
ABSL_FLAG(bool, log_to_stdout, false, "Log to stdout instead of to a file");
ABSL_FLAG(cdc_ft::JedecSize, cache_capacity,
cdc_ft::JedecSize(cdc_ft::DiskDataStore::kDefaultCapacity),
"Cache capacity. Supports common unit suffixes K, M, G");
ABSL_FLAG(uint32_t, cleanup_timeout, cdc_ft::DataProvider::kCleanupTimeoutSec,
"Period in seconds at which instance cache cleanups are run");
ABSL_FLAG(uint32_t, access_idle_timeout, cdc_ft::DataProvider::kAccessIdleSec,
"Do not run instance cache cleanups for this many seconds after the "
"last file access");
ABSL_FLAG(std::string, config_file,
"%APPDATA%\\cdc-file-transfer\\assets_stream_manager.json",
"Json configuration file for asset stream manager");
ABSL_FLAG(std::string, log_dir, "%APPDATA%\\cdc-file-transfer\\logs",
"Directory to store log files for asset stream manager");
// Development args.
ABSL_FLAG(std::string, dev_src_dir, "",
"Start a streaming session immediately from the given Windows path. "
"Used during development. Must also specify --dev_user_host and "
"--dev_mount_dir and possibly other --dev flags, depending on the "
"SSH setup");
ABSL_FLAG(std::string, dev_user_host, "",
"Username and host to stream to, of the form [user@]host. Used "
"during development. See --dev_src_dir for more info.");
ABSL_FLAG(uint16_t, dev_ssh_port, cdc_ft::RemoteUtil::kDefaultSshPort,
"SSH port to use for the connection to the host. Used during "
"development. See --dev_src_dir for more info.");
ABSL_FLAG(std::string, dev_ssh_command, "",
"Ssh command and extra flags to use for the connection to the host. "
"Used during development. See --dev_src_dir for more info.");
ABSL_FLAG(std::string, dev_scp_command, "",
"Scp command and extra flags to use for the connection to the host. "
"Used during development. See --dev_src_dir for more info.");
ABSL_FLAG(std::string, dev_mount_dir, "",
"Directory on the host to stream to. Used during development. See "
"--dev_src_dir for more info.");
int main(int argc, char* argv[]) { int main(int argc, char* argv[]) {
absl::ParseCommandLine(argc, argv); // Set up commands.
auto cli = lyra::cli();
bool show_help = false;
int exit_code = -1;
cli.add_argument(lyra::help(show_help));
// Set up config. Allow overriding this config |config_file|. cdc_ft::StartServiceCommand start_service(&exit_code);
cdc_ft::AssetStreamConfig cfg; start_service.Register(cli);
std::string config_file = absl::GetFlag(FLAGS_config_file);
absl::Status cfg_load_status =
cdc_ft::path::ExpandPathVariables(&config_file);
cfg_load_status.Update(cfg.LoadFromFile(config_file));
std::string log_dir = absl::GetFlag(FLAGS_log_dir); // Parse args and run. Note that parse actually runs the commands.
cdc_ft::InitLogging(log_dir, cfg.log_to_stdout(), // exit_code is -1 if no command was run.
cfg.session_cfg().verbosity); auto result = cli.parse({argc, argv});
if (show_help || exit_code == -1) {
// Log status of loaded configuration. Errors are not critical. std::cout << cli;
if (cfg_load_status.ok()) { return 0;
LOG_INFO("Successfully loaded configuration file at '%s'", config_file);
} else if (absl::IsNotFound(cfg_load_status)) {
LOG_INFO("No configuration file found at '%s'", config_file);
} else {
LOG_ERROR("%s", cfg_load_status.message());
} }
if (!result) {
std::string flags_read = cfg.GetFlagsReadFromFile(); // Parse error.
if (!flags_read.empty()) { std::cerr << "Error: " << result.message() << std::endl;
LOG_INFO( return 1;
"The following settings were read from the configuration file and "
"override the corresponding command line flags if set: %s",
flags_read);
} }
// If cli.parse() succeeds, it also runs the commands and writes |exit_code|.
std::string flag_errors = cfg.GetFlagReadErrors(); return exit_code;
if (!flag_errors.empty()) {
LOG_WARNING("%s", flag_errors);
}
LOG_DEBUG("Configuration:\n%s", cfg.ToString());
absl::Status status = cdc_ft::Run(cfg);
if (!status.ok()) {
LOG_ERROR("%s", status.ToString());
} else {
LOG_INFO("Asset stream manager shut down successfully.");
}
cdc_ft::Log::Shutdown();
static_assert(static_cast<int>(absl::StatusCode::kOk) == 0, "kOk not 0");
return static_cast<int>(status.code());
} }

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@@ -0,0 +1,162 @@
// 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 "asset_stream_manager/start_service_command.h"
#include "asset_stream_manager/background_service_impl.h"
#include "asset_stream_manager/local_assets_stream_manager_service_impl.h"
#include "asset_stream_manager/session_management_server.h"
#include "asset_stream_manager/session_manager.h"
#include "common/clock.h"
#include "common/grpc_status.h"
#include "common/log.h"
#include "common/path.h"
#include "common/process.h"
#include "common/status_macros.h"
#include "lyra/lyra.hpp"
#include "metrics/metrics.h"
namespace cdc_ft {
namespace {
constexpr int kSessionManagementPort = 44432;
std::string GetLogPath(const char* log_dir, const char* log_base_name) {
DefaultSystemClock* clock = DefaultSystemClock::GetInstance();
std::string timestamp_ext = clock->FormatNow(".%Y%m%d-%H%M%S.log", false);
return path::Join(log_dir, log_base_name + timestamp_ext);
}
} // namespace
StartServiceCommand::StartServiceCommand(int* exit_code)
: BaseCommand("start-service", "Start streaming service", exit_code) {}
StartServiceCommand::~StartServiceCommand() = default;
void StartServiceCommand::RegisterCommandLineFlags(lyra::command& cmd) {
config_file_ = "%APPDATA%\\cdc-file-transfer\\assets_stream_manager.json";
cmd.add_argument(
lyra::opt(config_file_, "path")
.name("--config-file")
.help("Json configuration file, default: " + config_file_));
log_dir_ = "%APPDATA%\\cdc-file-transfer\\logs";
cmd.add_argument(
lyra::opt(log_dir_, "dir")
.name("--log-dir")
.help("Directory to store log files, default: " + log_dir_));
cfg_.RegisterCommandLineFlags(cmd);
}
absl::Status StartServiceCommand::Run() {
if (!cfg_.jedec_parse_error().empty()) {
return absl::InvalidArgumentError(cfg_.jedec_parse_error());
}
// Set up config. Allow overriding this config with |config_file|.
absl::Status cfg_load_status = path::ExpandPathVariables(&config_file_);
cfg_load_status.Update(cfg_.LoadFromFile(config_file_));
RETURN_IF_ERROR(InitLogging());
// Log status of loaded configuration. Errors are not critical.
if (cfg_load_status.ok()) {
LOG_INFO("Successfully loaded configuration file at '%s'", config_file_);
} else if (absl::IsNotFound(cfg_load_status)) {
LOG_INFO("No configuration file found at '%s'", config_file_);
} else {
LOG_ERROR("%s", cfg_load_status.message());
}
std::string flags_read = cfg_.GetFlagsReadFromFile();
if (!flags_read.empty()) {
LOG_INFO(
"The following settings were read from the configuration file and "
"override the corresponding command line flags if set: %s",
flags_read);
}
std::string flag_errors = cfg_.GetFlagReadErrors();
if (!flag_errors.empty()) {
LOG_WARNING("%s", flag_errors);
}
LOG_DEBUG("Configuration:\n%s", cfg_.ToString());
absl::Status status = RunService();
if (!status.ok()) {
LOG_ERROR("%s", status.ToString());
} else {
LOG_INFO("Asset stream manager shut down successfully.");
}
Log::Shutdown();
return status;
}
absl::Status StartServiceCommand::InitLogging() {
LogLevel level = Log::VerbosityToLogLevel(cfg_.session_cfg().verbosity);
if (cfg_.log_to_stdout()) {
// Log to stdout.
Log::Initialize(std::make_unique<ConsoleLog>(level));
return absl::OkStatus();
}
// Log to file.
if (!path::ExpandPathVariables(&log_dir_).ok() ||
!path::CreateDirRec(log_dir_).ok()) {
return absl::InvalidArgumentError(
absl::StrFormat("Failed to create log directory '%s'", log_dir_));
}
Log::Initialize(std::make_unique<FileLog>(
level, GetLogPath(log_dir_.c_str(), "assets_stream_manager").c_str()));
return absl::OkStatus();
}
// Runs the session management service and returns when it finishes.
absl::Status StartServiceCommand::RunService() {
WinProcessFactory process_factory;
metrics::MetricsService metrics_service;
SessionManager session_manager(cfg_.session_cfg(), &process_factory,
&metrics_service);
BackgroundServiceImpl background_service;
LocalAssetsStreamManagerServiceImpl session_service(
&session_manager, &process_factory, &metrics_service);
SessionManagementServer sm_server(&session_service, &background_service,
&session_manager);
background_service.SetExitCallback(
[&sm_server]() { return sm_server.Shutdown(); });
if (!cfg_.dev_src_dir().empty()) {
localassetsstreammanager::StartSessionRequest request;
request.set_workstation_directory(cfg_.dev_src_dir());
request.set_user_host(cfg_.dev_target().user_host);
request.set_mount_dir(cfg_.dev_target().mount_dir);
request.set_port(cfg_.dev_target().ssh_port);
request.set_ssh_command(cfg_.dev_target().ssh_command);
request.set_scp_command(cfg_.dev_target().scp_command);
localassetsstreammanager::StartSessionResponse response;
RETURN_ABSL_IF_ERROR(
session_service.StartSession(nullptr, &request, &response));
}
RETURN_IF_ERROR(sm_server.Start(kSessionManagementPort));
sm_server.RunUntilShutdown();
return absl::OkStatus();
}
} // namespace cdc_ft

51
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/*
* 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 ASSET_STREAM_MANAGER_START_SERVICE_COMMAND_H_
#define ASSET_STREAM_MANAGER_START_SERVICE_COMMAND_H_
#include "asset_stream_manager/asset_stream_config.h"
#include "asset_stream_manager/base_command.h"
namespace cdc_ft {
// Handler for the start-service command. Starts the asset streaming service
// and returns when the service is shut down.
class StartServiceCommand : public BaseCommand {
public:
explicit StartServiceCommand(int* exit_code);
~StartServiceCommand();
// BaseCommand:
void RegisterCommandLineFlags(lyra::command& cmd) override;
absl::Status Run() override;
private:
// Initializes LOG* logging.
// Depending on the flags, might log to console or to a file.
absl::Status InitLogging();
// Runs the asset streaming service.
absl::Status RunService();
AssetStreamConfig cfg_;
std::string config_file_;
std::string log_dir_;
};
} // namespace cdc_ft
#endif // ASSET_STREAM_MANAGER_START_SERVICE_COMMAND_H_

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# Description:
# This project provides Linux compatible Dirent interface for Microsoft Windows.
#
licenses(["notice"]) # BSL-1.0 license
exports_files(["LICENSE"])
package(default_visibility = ["//visibility:public"])
cc_library(
name = "lyra",
hdrs = [
"include/lyra/arg.hpp",
"include/lyra/args.hpp",
"include/lyra/arguments.hpp",
"include/lyra/cli.hpp",
"include/lyra/cli_parser.hpp",
"include/lyra/command.hpp",
"include/lyra/detail",
"include/lyra/exe_name.hpp",
"include/lyra/group.hpp",
"include/lyra/help.hpp",
"include/lyra/literal.hpp",
"include/lyra/lyra.hpp",
"include/lyra/main.hpp",
"include/lyra/opt.hpp",
"include/lyra/option_style.hpp",
"include/lyra/parser.hpp",
"include/lyra/parser_result.hpp",
"include/lyra/val.hpp",
"include/lyra/version.hpp",
],
includes = ["include"],
)