Merge pull request #7578 from electron/windows-logging

Show console output from Windows when ELECTRON_RUN_AS_NODE is set

atom/app/node_main.cc

@@ -14,6 +14,12 @@
 #include "gin/public/isolate_holder.h"
 #include "gin/v8_initializer.h"
 
+#if defined(OS_WIN)
+#include "atom/common/api/atom_bindings.h"
+#include "atom/common/native_mate_converters/string16_converter.h"
+#include "native_mate/dictionary.h"
+#endif
+
 #include "atom/common/node_includes.h"
 
 namespace atom {
@@ -51,6 +57,11 @@ int NodeMain(int argc, char *argv[]) {
     if (node_debugger.IsRunning())
       env->AssignToContext(v8::Debug::GetDebugContext());
 
+#if defined(OS_WIN)
+    mate::Dictionary process(gin_env.isolate(), env->process_object());
+    process.SetMethod("log", &AtomBindings::Log);
+#endif
+
     node::LoadEnvironment(env);
 
     bool more;

atom/common/api/atom_bindings.cc

@@ -79,10 +79,6 @@ void FatalErrorCallback(const char* location, const char* message) {
   Crash();
 }
 
-void Log(const base::string16& message) {
-  std::cout << message << std::flush;
-}
-
 }  // namespace
 
 
@@ -157,4 +153,9 @@ void AtomBindings::OnCallNextTick(uv_async_t* handle) {
   self->pending_next_ticks_.clear();
 }
 
+// static
+void AtomBindings::Log(const base::string16& message) {
+  std::cout << message << std::flush;
+}
+
 }  // namespace atom

atom/common/api/atom_bindings.h

@@ -27,6 +27,8 @@ class AtomBindings {
   // load native code from Electron instead.
   void BindTo(v8::Isolate* isolate, v8::Local<v8::Object> process);
 
+  static void Log(const base::string16& message);
+
  private:
   void ActivateUVLoop(v8::Isolate* isolate);