config: add a new knob

Reviewed By: chadaustin

Differential Revision: D31163226

fbshipit-source-id: 96dcba2bd62a0ce879a92a94050873c5725adce4

eden/fs/config/EdenConfig.h

@@ -17,6 +17,7 @@
 #include <folly/portability/SysTypes.h>
 #include <folly/portability/Unistd.h>
 
+#include "common/rust/shed/hostcaps/hostcaps.h"
 #include "eden/fs/config/ConfigSetting.h"
 #include "eden/fs/config/FileChangeMonitor.h"
 #include "eden/fs/config/MountProtocol.h"
@@ -762,6 +763,24 @@ class EdenConfig : private ConfigSettingManager {
       "clone:default-mount-protocol",
       folly::kIsWindows ? MountProtocol::PRJFS : MountProtocol::FUSE,
       this};
+
+  // [facebook]
+  // Facebook internal
+
+  /**
+   * (Facebook Internal) Determines if EdenFS should use ServiceRouter.
+   */
+#ifdef EDEN_HAVE_SERVICEROUTER
+  ConfigSetting<bool> enableServiceRouter{
+      "facebook:enable-service-router",
+      fb_has_servicerouter(),
+      this};
+#else
+  ConfigSetting<bool> enableServiceRouter{
+      "facebook:enable-service-router",
+      false,
+      this};
+#endif
 };
 
 } // namespace facebook::eden

eden/fs/config/FieldConverter.h

@@ -7,7 +7,6 @@
 
 #pragma once
 
-#include <cpptoml.h>
 #include <chrono>
 #include <map>
 #include <optional>
@@ -15,6 +14,7 @@
 #include <string>
 #include <type_traits>
 
+#include <cpptoml.h>
 #include <re2/re2.h>
 
 #include <folly/Expected.h>

eden/fs/service/EdenMain.cpp

@@ -141,7 +141,8 @@ void DefaultEdenMain::prepare(const EdenServer& /*server*/) {
   fb303::registerFollyLoggingOptionHandlers();
 }
 
-MetadataImporterFactory DefaultEdenMain::getMetadataImporterFactory() {
+MetadataImporterFactory DefaultEdenMain::getMetadataImporterFactory(
+    std::shared_ptr<EdenConfig> /*edenConfig*/) {
   return MetadataImporter::getMetadataImporterFactory<
       DefaultMetadataImporter>();
 }
@@ -272,6 +273,7 @@ int runEdenMain(EdenMain&& main, int argc, char** argv) {
         identity, main.getLocalHostname(), main.getEdenfsVersion());
 
     auto hiveLogger = main.getHiveLogger(sessionInfo, edenConfig);
+    auto metadataImporter = main.getMetadataImporterFactory(edenConfig);
 
     server.emplace(
         std::move(originalCommandLine),
@@ -279,7 +281,7 @@ int runEdenMain(EdenMain&& main, int argc, char** argv) {
         std::move(sessionInfo),
         std::move(privHelper),
         std::move(edenConfig),
-        main.getMetadataImporterFactory(),
+        std::move(metadataImporter),
         main.getActivityRecorderFactory(),
         std::move(hiveLogger),
         main.getEdenfsVersion());

eden/fs/service/EdenMain.h

@@ -33,7 +33,8 @@ class EdenMain {
   virtual void didFollyInit() = 0;
   virtual void prepare(const EdenServer& server) = 0;
   virtual void cleanup() = 0;
-  virtual MetadataImporterFactory getMetadataImporterFactory() = 0;
+  virtual MetadataImporterFactory getMetadataImporterFactory(
+      std::shared_ptr<EdenConfig> edenConfig) = 0;
   virtual ActivityRecorderFactory getActivityRecorderFactory() = 0;
   virtual std::shared_ptr<IHiveLogger> getHiveLogger(
       SessionInfo sessionInfo,
@@ -53,7 +54,8 @@ class DefaultEdenMain : public EdenMain {
   virtual void didFollyInit() override;
   virtual void prepare(const EdenServer& server) override;
   virtual void cleanup() override {}
-  virtual MetadataImporterFactory getMetadataImporterFactory() override;
+  virtual MetadataImporterFactory getMetadataImporterFactory(
+      std::shared_ptr<EdenConfig> edenConfig) override;
   virtual ActivityRecorderFactory getActivityRecorderFactory() override;
   virtual std::shared_ptr<IHiveLogger> getHiveLogger(
       SessionInfo sessionInfo,

eden/fs/service/EdenServiceHandler.cpp

@@ -380,7 +380,8 @@ EdenServiceHandler::EdenServiceHandler(
   }
 #ifdef EDEN_HAVE_USAGE_SERVICE
   spServiceEndpoint_ = std::make_unique<EdenFSSmartPlatformServiceEndpoint>(
-      server_->getServerState()->getThreadPool());
+      server_->getServerState()->getThreadPool(),
+      server_->getServerState()->getEdenConfig());
 #endif
 }