allow IO from shared process in dev

src/bootstrap.js

@@ -90,16 +90,18 @@ if (!!process.send && process.env.PIPE_LOGGING === 'true') {
 	console.error = function () { safeSend({ type: '__$console', severity: 'error', arguments: safeStringify(arguments) }); };
 }
 
-// Let stdout, stderr and stdin be no-op streams. This prevents an issue where we would get an EBADF
-// error when we are inside a forked process and this process tries to access those channels.
-var stream = require('stream');
-var writable = new stream.Writable({
-	write: function () { /* No OP */ }
-});
-
-process.__defineGetter__('stdout', function() { return writable; });
-process.__defineGetter__('stderr', function() { return writable; });
-process.__defineGetter__('stdin', function() { return writable; });
+if (!process.env['VSCODE_ALLOW_IO']) {
+	// Let stdout, stderr and stdin be no-op streams. This prevents an issue where we would get an EBADF
+	// error when we are inside a forked process and this process tries to access those channels.
+	var stream = require('stream');
+	var writable = new stream.Writable({
+		write: function () { /* No OP */ }
+	});
+
+	process.__defineGetter__('stdout', function() { return writable; });
+	process.__defineGetter__('stderr', function() { return writable; });
+	process.__defineGetter__('stdin', function() { return writable; });
+}
 
 // Handle uncaught exceptions
 process.on('uncaughtException', function (err) {

src/vs/code/electron-main/main.ts

@@ -108,7 +108,7 @@ function main(accessor: ServicesAccessor, ipcServer: Server, userEnv: IProcessEn
 	process.env['VSCODE_SHARED_IPC_HOOK'] = envService.sharedIPCHandle;
 
 	// Spawn shared process
-	const sharedProcess = instantiationService.invokeFunction(spawnSharedProcess);
+	const sharedProcess = spawnSharedProcess(!envService.isBuilt || envService.cliArgs.verboseLogging);
 
 	// Make sure we associate the program with the app user model id
 	// This will help Windows to associate the running program with

src/vs/code/electron-main/sharedProcess.ts

@@ -7,15 +7,18 @@ import * as cp from 'child_process';
 import URI from 'vs/base/common/uri';
 import { IDisposable } from 'vs/base/common/lifecycle';
 import { assign } from 'vs/base/common/objects';
-import { ServicesAccessor } from 'vs/platform/instantiation/common/instantiation';
 
 const boostrapPath = URI.parse(require.toUrl('bootstrap')).fsPath;
 
-function _spawnSharedProcess(): cp.ChildProcess {
+function _spawnSharedProcess(allowOutput: boolean): cp.ChildProcess {
 	const env = assign({}, process.env, {
 		AMD_ENTRYPOINT: 'vs/code/node/sharedProcessMain'
 	});
 
+	if (allowOutput) {
+		env['VSCODE_ALLOW_IO'] = 'true';
+	}
+
 	const result = cp.fork(boostrapPath, ['--type=SharedProcess'], { env });
 
 	// handshake
@@ -26,7 +29,7 @@ function _spawnSharedProcess(): cp.ChildProcess {
 
 let spawnCount = 0;
 
-export function spawnSharedProcess(accessor: ServicesAccessor): IDisposable {
+export function spawnSharedProcess(allowOutput: boolean): IDisposable {
 	let child: cp.ChildProcess;
 
 	const spawn = () => {
@@ -34,7 +37,7 @@ export function spawnSharedProcess(accessor: ServicesAccessor): IDisposable {
 			return;
 		}
 
-		child = _spawnSharedProcess();
+		child = _spawnSharedProcess(allowOutput);
 		child.on('exit', spawn);
 	};