enhance runtime dependencies scout

conf/wide.go

@@ -277,7 +277,7 @@ func checkEnv() {
 	if nil != err {
 		event.EventQueue <- &event.Event{Code: event.EvtCodeGocodeNotFound}
 
-		logger.Warnf("Not found gocode [%s]", gocode)
+		logger.Warnf("Not found gocode [%s], please install it with this command: go get github.com/nsf/gocode", gocode)
 	}
 
 	ideStub := util.Go.GetExecutableInGOBIN("ide_stub")
@@ -286,7 +286,7 @@ func checkEnv() {
 	if nil != err {
 		event.EventQueue <- &event.Event{Code: event.EvtCodeIDEStubNotFound}
 
-		logger.Warnf("Not found ide_stub [%s]", ideStub)
+		logger.Warnf("Not found ide_stub [%s], please install it with this command: go get github.com/88250/ide_stub", ideStub)
 	}
 }
 

util/go.go

@@ -100,5 +100,13 @@ func (*mygo) GetExecutableInGOBIN(executable string) string {
 	}
 
 	// $GOBIN/executable
-	return os.Getenv("GOBIN") + pathSeparator + executable
+	gobin := os.Getenv("GOBIN")
+	if "" != gobin {
+		ret = gobin + pathSeparator + executable
+		if File.IsExist(ret) {
+			return ret
+		}
+	}
+
+	return "./" + executable
 }