only call yarn gulp node when needed

scripts/code-server.bat

@@ -12,11 +12,15 @@ set VSCODE_DEV=1
 :: Sync built-in extensions
 call yarn download-builtin-extensions
 
-:: Download nodejs executable for remote
-call yarn gulp node
+:: Node executable
+FOR /F "tokens=*" %%g IN ('node build/lib/node.js') do (SET NODE=%%g)
+
+if not exist "%NODE%" (
+	:: Download nodejs executable for remote
+	call yarn gulp node
+)
 
 :: Launch Server
-FOR /F "tokens=*" %%g IN ('node build/lib/node.js') do (SET NODE=%%g)
 call "%NODE%" scripts\code-server.js %*
 
 popd

scripts/code-server.js

@@ -31,6 +31,7 @@ if (args.help) {
 		'./scripts/code-server.sh|bat [options]\n' +
 		' --launch              Opens a browser'
 	);
+	// more help options will be printed by startServer
 }
 
 const serverArgs = process.argv.slice(2).filter(v => v !== '--launch');

scripts/code-server.sh

@@ -13,10 +13,11 @@ function code() {
 	# Sync built-in extensions
 	yarn download-builtin-extensions
 
-	# Load remote node
-	yarn gulp node
-
 	NODE=$(node build/lib/node.js)
+	if [ ! -e $NODE ];then
+		# Load remote node
+		yarn gulp node
+	fi
 
 	NODE_ENV=development \
 	VSCODE_DEV=1 \

scripts/code-web.bat

@@ -8,11 +8,15 @@ pushd %~dp0\..
 :: Sync built-in extensions
 call yarn download-builtin-extensions
 
-:: Download nodejs executable for remote
-call yarn gulp node
+:: Node executable
+FOR /F "tokens=*" %%g IN ('node build/lib/node.js') do (SET NODE=%%g)
+
+if not exist "%NODE%" (
+	:: Download nodejs executable for remote
+	call yarn gulp node
+)
 
 :: Launch Server
-FOR /F "tokens=*" %%g IN ('node build/lib/node.js') do (SET NODE=%%g)
 call "%NODE%" scripts\code-web.js %*
 
 popd

scripts/code-web.sh

@@ -13,8 +13,11 @@ function code() {
 	# Sync built-in extensions
 	yarn download-builtin-extensions
 
-	# Load remote node
-	yarn gulp node
+	NODE=$(node build/lib/node.js)
+	if [ ! -e $NODE ];then
+		# Load remote node
+		yarn gulp node
+	fi
 
 	NODE=$(node build/lib/node.js)