From 5fa7bec22688fd81c191abc430ecb7424abf144b Mon Sep 17 00:00:00 2001
From: Zhengbo Li <zhengbli@microsoft.com>
Date: Thu, 10 Dec 2015 17:52:25 -0800
Subject: [PATCH] revert back to polling watching for approaching release

---
 src/compiler/sys.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/compiler/sys.ts b/src/compiler/sys.ts
index 5482e549eb..0cb0258de3 100644
--- a/src/compiler/sys.ts
+++ b/src/compiler/sys.ts
@@ -352,7 +352,7 @@ namespace ts {
             // to increase the chunk size or decrease the interval
             // time dynamically to match the large reference set?
             const pollingWatchedFileSet = createPollingWatchedFileSet();
-            const watchedFileSet = createWatchedFileSet();
+            // const watchedFileSet = createWatchedFileSet();
 
             function isNode4OrLater(): Boolean {
                 return parseInt(process.version.charAt(1)) >= 4;
@@ -456,7 +456,8 @@ namespace ts {
                     // and is more efficient than `fs.watchFile` (ref: https://github.com/nodejs/node/pull/2649
                     // and https://github.com/Microsoft/TypeScript/issues/4643), therefore
                     // if the current node.js version is newer than 4, use `fs.watch` instead.
-                    let fileSet = isNode4OrLater() ? watchedFileSet : pollingWatchedFileSet;
+                    // let fileSet = isNode4OrLater() ? watchedFileSet : pollingWatchedFileSet;
+                    let fileSet = pollingWatchedFileSet;
                     const watchedFile = fileSet.addFile(fileName, callback);
                     return {
                         close: () => fileSet.removeFile(watchedFile)