text: // Copyright (c) 2006-2008 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.
  //
  // This file contains the specification of setup main functions.
  
  #ifndef CHROME_INSTALLER_SETUP_SETUP_H__
  #define CHROME_INSTALLER_SETUP_SETUP_H__
  
  #include <string>
  #include <windows.h>
  
  #include "chrome/installer/util/util_constants.h"
  #include "chrome/installer/util/version.h"
  
  namespace installer {
  // Get path to the installer under Chrome version folder
  // (for example <path>\Google\Chrome\<Version>\installer)
  std::wstring GetInstallerPathUnderChrome(const std::wstring& install_path,
                                           const std::wstring& new_version);
  
  // This function installs or updates a new version of Chrome. It returns
  // install status (failed, new_install, updated etc).
  //
  // exe_path: Path to the executable (setup.exe) as it will be copied
  //           to Chrome install folder after install is complete
  // archive_path: Path to the archive (chrome.7z) as it will be copied
  //               to Chrome install folder after install is complete
  // install_temp_path: working directory used during install/update. It should
  //                    also has a sub dir source that contains a complete
  //                    and unpacked Chrome package.
  // system_install: if true, the function performs a system wide install/update.
  //                 Otherwise it installs/updates Chrome for the current user.
  // new_version: new Chrome version that needs to be installed
  // installed_version: currently installed version of Chrome, if any, or
  //                    NULL otherwise
  //
  // Note: since caller unpacks Chrome to install_temp_path\source, the caller
  // is responsible for cleaning up install_temp_path.
  installer_util::InstallStatus InstallOrUpdateChrome(
      const std::wstring& exe_path, const std::wstring& archive_path,
      const std::wstring& install_temp_path, bool system_install,
      const Version& new_version, const Version* installed_version);
  
  // This function installs a new version of Chrome to the specified location.
  // It returns true if install was successful and false in case of an error.
  //
  // exe_path: Path to the executable (setup.exe) as it will be copied
  //           to Chrome install folder after install is complete
  // archive_path: Path to the archive (chrome.7z) as it will be copied
  //               to Chrome install folder after install is complete
  // src_path: the path that contains a complete and unpacked Chrome package
  //           to be installed.
  // install_path: the destination path for Chrome to be installed to. This
  //               path does not need to exist.
  // temp_dir: the path of working directory used during installation. This path
  //           does not need to exist.
  // reg_root: the root of registry where the function applies settings for the
  //           new Chrome version. It should be either HKLM or HKCU.
  // new_version: new Chrome version that needs to be installed
  //
  // This function makes best effort to do installation in a transactional
  // manner. If failed it tries to rollback all changes on the file system
  // and registry. For example, if install_path exists before calling the
  // function, it rolls back all new file and directory changes under
  // install_path. If install_path does not exist before calling the function
  // (typical new install), the function creates install_path during install
  // and removes the whole directory during rollback.
  bool InstallNewVersion(const std::wstring& exe_path,
                         const std::wstring& archive_path,
                         const std::wstring& src_path,
                         const std::wstring& install_path,
                         const std::wstring& temp_dir,
                         const HKEY reg_root,
                         const Version& new_version);
  
  }
  
  #endif  // CHROME_INSTALLER_SETUP_SETUP_H__
  
  