base/scoped_temp_dir.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/scoped_temp_dir.h"
   6
   7 #include "base/file_util.h"
   8 #include "base/logging.h"
   9
  10 ScopedTempDir::ScopedTempDir() {
  11 }
  12
  13 ScopedTempDir::~ScopedTempDir() {
  14   if (!path_.empty() && !Delete())
  15     DLOG(WARNING) << "Could not delete temp dir in dtor.";
  16 }
  17
  18 bool ScopedTempDir::CreateUniqueTempDir() {
  19   if (!path_.empty())
  20     return false;
  21
  22   // This "scoped_dir" prefix is only used on Windows and serves as a template
  23   // for the unique name.
  24   if (!file_util::CreateNewTempDirectory(FILE_PATH_LITERAL("scoped_dir"),
  25                                          &path_))
  26     return false;
  27
  28   return true;
  29 }
  30
  31 bool ScopedTempDir::CreateUniqueTempDirUnderPath(const FilePath& base_path) {
  32   if (!path_.empty())
  33     return false;
  34
  35   // If |base_path| does not exist, create it.
  36   if (!file_util::CreateDirectory(base_path))
  37     return false;
  38
  39   // Create a new, uniquely named directory under |base_path|.
  40   if (!file_util::CreateTemporaryDirInDir(
  41           base_path,
  42           FILE_PATH_LITERAL("scoped_dir_"),
  43           &path_))
  44     return false;
  45
  46   return true;
  47 }
  48
  49 bool ScopedTempDir::Set(const FilePath& path) {
  50   if (!path_.empty())
  51     return false;
  52
  53   if (!file_util::DirectoryExists(path) &&
  54       !file_util::CreateDirectory(path))
  55     return false;
  56
  57   path_ = path;
  58   return true;
  59 }
  60
  61 bool ScopedTempDir::Delete() {
  62   if (path_.empty())
  63     return false;
  64
  65   bool ret = file_util::Delete(path_, true);
  66   if (ret) {
  67     // We only clear the path if deleted the directory.
  68     path_.clear();
  69   }
  70
  71   return ret;
  72 }
  73
  74 FilePath ScopedTempDir::Take() {
  75   FilePath ret = path_;
  76   path_ = FilePath();
  77   return ret;
  78 }
  79
  80 bool ScopedTempDir::IsValid() const {
  81   return !path_.empty() && file_util::DirectoryExists(path_);
  82 }