From 054642231bdb8b9311bd63a6dad160dee9acccb4 Mon Sep 17 00:00:00 2001
From: Sam Swarr <swarr@fb.com>
Date: Tue, 15 Mar 2016 12:08:32 -0700
Subject: [PATCH] Add ability to silence packager logs to stdout

Summary:We use a few different modules to output logs to stdout when building a bundle with the packager:
- ##js/react-native-github/packager/react-packager/src/Activity/index.js##
- ##js/react-native-github/local-cli/util/log.js##
- ##https://www.npmjs.com/package/progress##

This diff also adds a ##silent## option to the packager ##Server##, which, when ##true##, will not create a ##progress## instance for the transformer.

Reviewed By: martinbigio

Differential Revision: D3048739

fb-gh-sync-id: a4c6caf36f5127946593f4a0a349fa145ad0d4e6
shipit-source-id: a4c6caf36f5127946593f4a0a349fa145ad0d4e6
---
 react-packager/src/Bundler/index.js | 8 ++++++--
 react-packager/src/Server/index.js  | 4 ++++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/react-packager/src/Bundler/index.js b/react-packager/src/Bundler/index.js
index 3ec53f34..75d89877 100644
--- a/react-packager/src/Bundler/index.js
+++ b/react-packager/src/Bundler/index.js
@@ -81,6 +81,10 @@ const validateOpts = declareOpts({
     type: 'number',
     required: false,
   },
+  silent: {
+    type: 'boolean',
+    default: false,
+  },
 });
 
 class Bundler {
@@ -352,8 +356,8 @@ class Bundler {
     const modulesByName = Object.create(null);
 
     if (!resolutionResponse) {
-      let onProgess;
-      if (process.stdout.isTTY) {
+      let onProgess = noop;
+      if (process.stdout.isTTY && !this._opts.silent) {
         const bar = new ProgressBar(
           'transformed :current/:total (:percent)',
           {complete: '=', incomplete: ' ', width: 40, total: 1},
diff --git a/react-packager/src/Server/index.js b/react-packager/src/Server/index.js
index fe49ebbb..c52762f6 100644
--- a/react-packager/src/Server/index.js
+++ b/react-packager/src/Server/index.js
@@ -73,6 +73,10 @@ const validateOpts = declareOpts({
     type: 'string',
     required: false,
   },
+  silent: {
+    type: 'boolean',
+    default: false,
+  },
 });
 
 const bundleOpts = declareOpts({