From 911f1f88ee969a3f131ba237fcdde2d74fe2bee9 Mon Sep 17 00:00:00 2001
From: Andrew Casey <andrew.casey@microsoft.com>
Date: Mon, 10 Jul 2017 19:27:25 -0700
Subject: [PATCH] Correct FileWatcherEventKind in server polling method

Was sending Changed on Creation.

Caveat: the tests will probably still fail intermittently with a race -
this just fixes the deterministic failure.
---
 src/server/server.ts | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/src/server/server.ts b/src/server/server.ts
index 873f7fc613c..75e46d28f7a 100644
--- a/src/server/server.ts
+++ b/src/server/server.ts
@@ -526,12 +526,18 @@ namespace ts.server {
                 if (err) {
                     watchedFile.callback(watchedFile.fileName, FileWatcherEventKind.Changed);
                 }
-                else if (watchedFile.mtime.getTime() !== stats.mtime.getTime()) {
-                    watchedFile.mtime = stats.mtime;
-                    const eventKind = watchedFile.mtime.getTime() === 0
-                        ? FileWatcherEventKind.Deleted
-                        : FileWatcherEventKind.Changed;
-                    watchedFile.callback(watchedFile.fileName, eventKind);
+                else {
+                    const oldTime = watchedFile.mtime.getTime();
+                    const newTime = stats.mtime.getTime();
+                    if (oldTime !== newTime) {
+                        watchedFile.mtime = stats.mtime;
+                        const eventKind = oldTime === 0
+                            ? FileWatcherEventKind.Created
+                            : newTime === 0
+                                ? FileWatcherEventKind.Deleted
+                                : FileWatcherEventKind.Changed;
+                        watchedFile.callback(watchedFile.fileName, eventKind);
+                    }
                 }
             });
         }