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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/files/file_util.h"
#include "base/logging.h"
#include "chrome/installer/util/create_dir_work_item.h"
#include "chrome/installer/util/logging_installer.h"
CreateDirWorkItem::~CreateDirWorkItem() {
}
CreateDirWorkItem::CreateDirWorkItem(const base::FilePath& path)
: path_(path),
rollback_needed_(false) {
}
void CreateDirWorkItem::GetTopDirToCreate() {
if (base::PathExists(path_)) {
top_path_ = base::FilePath();
return;
}
base::FilePath parent_dir(path_);
do {
top_path_ = parent_dir;
parent_dir = parent_dir.DirName();
} while ((parent_dir != top_path_) && !base::PathExists(parent_dir));
return;
}
bool CreateDirWorkItem::Do() {
VLOG(1) << "creating directory " << path_.value();
GetTopDirToCreate();
if (top_path_.empty())
return true;
VLOG(1) << "top directory that needs to be created: " << top_path_.value();
bool result = base::CreateDirectory(path_);
VLOG(1) << "directory creation result: " << result;
rollback_needed_ = true;
return result;
}
void CreateDirWorkItem::Rollback() {
if (!rollback_needed_)
return;
// Delete all the directories we created to rollback.
// Note we can not recusively delete top_path_ since we don't want to
// delete non-empty directory. (We may have created a shared directory).
// Instead we walk through path_ to top_path_ and delete directories
// along the way.
base::FilePath path_to_delete(path_);
while (1) {
if (base::PathExists(path_to_delete)) {
if (!RemoveDirectory(path_to_delete.value().c_str()))
break;
}
if (path_to_delete == top_path_)
break;
path_to_delete = path_to_delete.DirName();
}
return;
}
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