From 6f18215ad968ddb80bbaa6c3c2e75db098741d6e Mon Sep 17 00:00:00 2001
From: cjihrig <cjihrig@gmail.com>
Date: Wed, 26 Apr 2017 12:20:57 -0400
Subject: [PATCH] src,inspector: add --inspect-silent option

---
 src/inspector_io.cc       | 15 +++++++++++----
 src/node_debug_options.cc |  7 ++++++-
 src/node_debug_options.h  |  4 ++++
 3 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/src/inspector_io.cc b/src/inspector_io.cc
index 613e2f70c253f0..e71ffb11a9a2b9 100644
--- a/src/inspector_io.cc
+++ b/src/inspector_io.cc
@@ -198,8 +198,11 @@ void InspectorIo::WaitForDisconnect() {
   if (state_ == State::kConnected) {
     shutting_down_ = true;
     Write(TransportAction::kStop, 0, StringView());
-    fprintf(stderr, "Waiting for the debugger to disconnect...\n");
-    fflush(stderr);
+
+    if (options_.out() != NULL) {
+      fprintf(options_.out(), "Waiting for the debugger to disconnect...\n");
+      fflush(options_.out());
+    }
     parent_env_->inspector_agent()->RunMessageLoop();
   }
 }
@@ -257,7 +260,8 @@ void InspectorIo::WorkerRunIO() {
   delegate_ = &delegate;
   InspectorSocketServer server(&delegate,
                                options_.host_name(),
-                               options_.port());
+                               options_.port(),
+                               options_.out());
   TransportAndIo<Transport> queue_transport(&server, this);
   io_thread_req_.data = &queue_transport;
   if (!server.Start(&loop)) {
@@ -337,7 +341,10 @@ void InspectorIo::DispatchMessages() {
         CHECK_EQ(session_delegate_, nullptr);
         session_id_ = std::get<1>(task);
         state_ = State::kConnected;
-        fprintf(stderr, "Debugger attached.\n");
+
+        if (options_.out() != NULL)
+          fprintf(options_.out(), "Debugger attached.\n");
+
         session_delegate_ = std::unique_ptr<InspectorSessionDelegate>(
             new IoSessionDelegate(this));
         parent_env_->inspector_agent()->Connect(session_delegate_.get());
diff --git a/src/node_debug_options.cc b/src/node_debug_options.cc
index b4a819e096f68a..95e6e0dbdc535b 100644
--- a/src/node_debug_options.cc
+++ b/src/node_debug_options.cc
@@ -61,7 +61,8 @@ DebugOptions::DebugOptions() : debugger_enabled_(false),
                                inspector_enabled_(false),
 #endif  // HAVE_INSPECTOR
                                wait_connect_(false), http_enabled_(false),
-                               host_name_("127.0.0.1"), port_(-1) { }
+                               host_name_("127.0.0.1"), port_(-1),
+                               out_(stderr) { }
 
 void DebugOptions::EnableDebugAgent(DebugAgentType tool) {
   switch (tool) {
@@ -101,6 +102,10 @@ bool DebugOptions::ParseOption(const std::string& option) {
     debugger_enabled_ = true;
     enable_inspector = true;
     wait_connect_ = true;
+  } else if (option_name == "--inspect-silent") {
+    debugger_enabled_ = true;
+    enable_inspector = true;
+    out_ = NULL;
   } else if ((option_name != "--debug-port" &&
               option_name != "--inspect-port") ||
               !has_argument) {
diff --git a/src/node_debug_options.h b/src/node_debug_options.h
index d03bdb15497bbf..06ac47f0e85983 100644
--- a/src/node_debug_options.h
+++ b/src/node_debug_options.h
@@ -34,6 +34,7 @@ class DebugOptions {
   std::string host_name() const { return host_name_; }
   int port() const;
   void set_port(int port) { port_ = port; }
+  FILE* out() const { return out_; }
 
  private:
   bool debugger_enabled_;
@@ -44,6 +45,9 @@ class DebugOptions {
   bool http_enabled_;
   std::string host_name_;
   int port_;
+#if HAVE_INSPECTOR
+  FILE* out_;
+#endif  // HAVE_INSPECTOR
 };
 
 }  // namespace node