From 82511122520e28082efd563e75cfea7d57430631 Mon Sep 17 00:00:00 2001
From: Anton Makeev <Anton.Makeev@jetbrains.com>
Date: Fri, 13 Jan 2012 14:54:52 +0100
Subject: [PATCH] PerformanceMonitor: do not create empty dirs if not necessary

---
 .../src/com/intellij/diagnostic/PerformanceWatcher.java   | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/platform/platform-impl/src/com/intellij/diagnostic/PerformanceWatcher.java b/platform/platform-impl/src/com/intellij/diagnostic/PerformanceWatcher.java
index 6922ddedeb4e..717ddecbf122 100644
--- a/platform/platform-impl/src/com/intellij/diagnostic/PerformanceWatcher.java
+++ b/platform/platform-impl/src/com/intellij/diagnostic/PerformanceWatcher.java
@@ -97,7 +97,6 @@ public class PerformanceWatcher implements ApplicationComponent {
 
     myLogDir = new File(PathManager.getLogPath() + "/threadDumps-" + myDateFormat.format(new Date())
                         + "-" + ApplicationInfo.getInstance().getBuild().asString());
-    myLogDir.mkdirs();
     myCurHangLogDir = myLogDir;
 
     try {
@@ -165,7 +164,6 @@ public class PerformanceWatcher implements ApplicationComponent {
         if (myUnresponsiveDuration == UNRESPONSIVE_THRESHOLD) {
           //System.out.println("EDT is not responding at " + myPrintDateFormat.format(new Date()));
           myCurHangLogDir = new File(myLogDir, myDateFormat.format(new Date()));
-          myCurHangLogDir.mkdirs();
         }
         if (myUnresponsiveDuration >= UNRESPONSIVE_THRESHOLD) {
           dumpThreads(false);
@@ -174,7 +172,9 @@ public class PerformanceWatcher implements ApplicationComponent {
       else {
         if (myUnresponsiveDuration >= UNRESPONSIVE_THRESHOLD) {
           //System.out.println("EDT was unresponsive for " + myUnresponsiveDuration + " seconds");
-          myCurHangLogDir.renameTo(new File(myLogDir, getLogDirForHang()));
+          if (myCurHangLogDir.exists()) {
+            myCurHangLogDir.renameTo(new File(myLogDir, getLogDirForHang()));
+          }
           myUnresponsiveDuration = 0;
           myCurHangLogDir = myLogDir;
 
@@ -199,6 +199,8 @@ public class PerformanceWatcher implements ApplicationComponent {
 
   public void dumpThreads(boolean millis) {
     final String suffix = millis ? "-" + String.valueOf(System.currentTimeMillis()) : "";
+    myCurHangLogDir.mkdirs();
+
     File f = new File(myCurHangLogDir, "threadDump-" + myDateFormat.format(new Date()) + suffix + ".txt");
     FileOutputStream fos;
     try {