From 3fe0ce4a9901d1bee69a143c0565c5270db24140 Mon Sep 17 00:00:00 2001
From: Egor Ushakov <egor.ushakov@jetbrains.com>
Date: Wed, 22 Nov 2017 13:33:11 +0300
Subject: [PATCH] IDEA-182478 Clearing output directory slows down total build
 time - disabled sync delete

---
 .../jps/incremental/IncProjectBuilder.java     | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)

diff --git a/jps/jps-builders/src/org/jetbrains/jps/incremental/IncProjectBuilder.java b/jps/jps-builders/src/org/jetbrains/jps/incremental/IncProjectBuilder.java
index 119ca262b847..edb656da859f 100644
--- a/jps/jps-builders/src/org/jetbrains/jps/incremental/IncProjectBuilder.java
+++ b/jps/jps-builders/src/org/jetbrains/jps/incremental/IncProjectBuilder.java
@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2016 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package org.jetbrains.jps.incremental;
 
 import com.intellij.openapi.diagnostic.Logger;
@@ -84,7 +70,7 @@ public class IncProjectBuilder {
 
   private static final String CLASSPATH_INDEX_FILE_NAME = "classpath.index";
   //private static final boolean GENERATE_CLASSPATH_INDEX = Boolean.parseBoolean(System.getProperty(GlobalOptions.GENERATE_CLASSPATH_INDEX_OPTION, "false"));
-  private static final boolean SYNC_DELETE = Boolean.parseBoolean(System.getProperty("jps.sync.delete", SystemInfo.isWindows ? "true" : "false"));
+  private static final boolean SYNC_DELETE = Boolean.parseBoolean(System.getProperty("jps.sync.delete", "false"));
   private static final GlobalContextKey<Set<BuildTarget<?>>> TARGET_WITH_CLEARED_OUTPUT = GlobalContextKey.create("_targets_with_cleared_output_");
   public static final int MAX_BUILDER_THREADS;
   static {