Mercurial > hg > mercurial
view mercurial-common/src/jetbrains/buildServer/buildTriggers/vcs/mercurial/HgFileUtil.java @ 864:98657a5c5cb1
UP-1916 don't use lock per temp dir
It seems like we didn't need such a concurrency anyway
author | Dmitry Neverov <dmitry.neverov@jetbrains.com> |
---|---|
date | Wed, 27 Aug 2014 17:34:59 +0200 |
parents | 07a3d55dda1b |
children | 7bf4d943d5bb |
line wrap: on
line source
/* * Copyright 2000-2014 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. */ package jetbrains.buildServer.buildTriggers.vcs.mercurial; import com.intellij.openapi.diagnostic.Logger; import com.intellij.openapi.util.SystemInfo; import jetbrains.buildServer.util.FileUtil; import org.jetbrains.annotations.NotNull; import org.jetbrains.annotations.Nullable; import java.io.File; import java.io.IOException; /** * @author dmitry.neverov */ public final class HgFileUtil { private final static String TEMP_DIR_PREFIX = "hg"; private final static Object ourTmpDirLock = new Object(); private HgFileUtil() { } /** * Create a temp dir with short name * @return created dir * @throws IOException in case of I/O error */ @NotNull public static File createTempDir() throws IOException { File parentDir = new File(FileUtil.getTempDirectory()); return createTempDir(parentDir); } @NotNull public static File createTempDir(@NotNull final File parentDir) throws IOException { //noinspection ResultOfMethodCallIgnored parentDir.mkdirs(); int suffix = 0; File dir; while (true) { suffix++; String tmpDirName = TEMP_DIR_PREFIX + suffix; dir = new File(parentDir, tmpDirName); if (dir.exists()) continue; synchronized (ourTmpDirLock) { try { if (!dir.createNewFile()) continue; } catch (IOException e) { //workaround for http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6325169 if (SystemInfo.isWindows && "Access is denied".equals(e.getMessage())) continue; throw e; } if (!dir.delete()) continue; if (!dir.mkdir()) continue; } return dir; } } public static void deleteDir(@Nullable final File dir, @NotNull final Logger logger) { if (dir == null) return; FileUtil.symlinkAwareDelete(dir); if (dir.exists()) logger.warn("Cannot delete directory " + dir.getAbsolutePath()); } }