base/files/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/files/scoped_temp_dir.h"
   6
   7 #include "base/file_util.h"
   8 #include "base/logging.h"
   9
  10 namespace base {
  11
  12 ScopedTempDir::ScopedTempDir() {
  13 }
  14
  15 ScopedTempDir::~ScopedTempDir() {
  16   if (!path_.empty() && !Delete())
  17     DLOG(WARNING) << "Could not delete temp dir in dtor.";
  18 }
  19
  20 bool ScopedTempDir::CreateUniqueTempDir() {
  21   if (!path_.empty())
  22     return false;
  23
  24   // This "scoped_dir" prefix is only used on Windows and serves as a template
  25   // for the unique name.
  26   if (!file_util::CreateNewTempDirectory(FILE_PATH_LITERAL("scoped_dir"),
  27                                          &path_))
  28     return false;
  29
  30   return true;
  31 }
  32
  33 bool ScopedTempDir::CreateUniqueTempDirUnderPath(const FilePath& base_path) {
  34   if (!path_.empty())
  35     return false;
  36
  37   // If |base_path| does not exist, create it.
  38   if (!file_util::CreateDirectory(base_path))
  39     return false;
  40
  41   // Create a new, uniquely named directory under |base_path|.
  42   if (!file_util::CreateTemporaryDirInDir(
  43           base_path,
  44           FILE_PATH_LITERAL("scoped_dir_"),
  45           &path_))
  46     return false;
  47
  48   return true;
  49 }
  50
  51 bool ScopedTempDir::Set(const FilePath& path) {
  52   if (!path_.empty())
  53     return false;
  54
  55   if (!DirectoryExists(path) && !file_util::CreateDirectory(path))
  56     return false;
  57
  58   path_ = path;
  59   return true;
  60 }
  61
  62 bool ScopedTempDir::Delete() {
  63   if (path_.empty())
  64     return false;
  65
  66   bool ret = base::DeleteFile(path_, true);
  67   if (ret) {
  68     // We only clear the path if deleted the directory.
  69     path_.clear();
  70   }
  71
  72   return ret;
  73 }
  74
  75 FilePath ScopedTempDir::Take() {
  76   FilePath ret = path_;
  77   path_ = FilePath();
  78   return ret;
  79 }
  80
  81 bool ScopedTempDir::IsValid() const {
  82   return !path_.empty() && DirectoryExists(path_);
  83 }
  84
  85 }  // namespace base