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Set of functions to work with console on Windows.
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Author: Alexander Belchenko (e-mail: bialix AT ukr.net)
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# Copyright (C) 2006, 2007 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Win32-specific helper functions
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Only one dependency: ctypes should be installed.
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if sys.platform == 'win32':
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_major,_minor,_build,_platform,_text = sys.getwindowsversion()
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# The operating system platform.
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# This member can be one of the following values.
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# ========================== ======================================
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# -------------------------- --------------------------------------
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# VER_PLATFORM_WIN32_NT The operating system is Windows Vista,
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# 2 Windows Server "Longhorn",
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# Windows Server 2003, Windows XP,
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# Windows 2000, or Windows NT.
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# VER_PLATFORM_WIN32_WINDOWS The operating system is Windows Me,
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# 1 Windows 98, or Windows 95.
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# ========================== ======================================
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# don't care about real Windows name, just to force safe operations
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# We can cope without it; use a separate variable to help pyflakes
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except ImportError:
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if winver == 'Windows 98':
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create_buffer = ctypes.create_string_buffer
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create_buffer = ctypes.create_unicode_buffer
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# pulling in win32com.shell is a bit of overhead, and normally we don't need
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# it as ctypes is preferred and common. lazy_imports and "optional"
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# modules don't work well, so we do our own lazy thing...
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has_win32com_shell = None # Set to True or False once we know for sure...
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# Special Win32 API constants
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# Handles of std streams
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WIN32_STDIN_HANDLE = -10
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WIN32_STDOUT_HANDLE = -11
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WIN32_STDERR_HANDLE = -12
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# CSIDL constants (from MSDN 2003)
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CSIDL_APPDATA = 0x001A # Application Data folder
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CSIDL_LOCAL_APPDATA = 0x001c# <user name>\Local Settings\Application Data (non roaming)
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CSIDL_PERSONAL = 0x0005 # My Documents folder
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# from winapi C headers
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MAX_COMPUTERNAME_LENGTH = 31
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# Registry data type ids
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def debug_memory_win32api(message='', short=True):
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"""Use trace.note() to dump the running memory info."""
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from bzrlib import trace
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class PROCESS_MEMORY_COUNTERS_EX(ctypes.Structure):
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"""Used by GetProcessMemoryInfo"""
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_fields_ = [('cb', ctypes.c_ulong),
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('PageFaultCount', ctypes.c_ulong),
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('PeakWorkingSetSize', ctypes.c_size_t),
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('WorkingSetSize', ctypes.c_size_t),
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('QuotaPeakPagedPoolUsage', ctypes.c_size_t),
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('QuotaPagedPoolUsage', ctypes.c_size_t),
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('QuotaPeakNonPagedPoolUsage', ctypes.c_size_t),
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('QuotaNonPagedPoolUsage', ctypes.c_size_t),
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('PagefileUsage', ctypes.c_size_t),
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('PeakPagefileUsage', ctypes.c_size_t),
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('PrivateUsage', ctypes.c_size_t),
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cur_process = ctypes.windll.kernel32.GetCurrentProcess()
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mem_struct = PROCESS_MEMORY_COUNTERS_EX()
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ret = ctypes.windll.psapi.GetProcessMemoryInfo(cur_process,
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ctypes.byref(mem_struct),
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ctypes.sizeof(mem_struct))
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trace.note('Failed to GetProcessMemoryInfo()')
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info = {'PageFaultCount': mem_struct.PageFaultCount,
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'PeakWorkingSetSize': mem_struct.PeakWorkingSetSize,
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'WorkingSetSize': mem_struct.WorkingSetSize,
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'QuotaPeakPagedPoolUsage': mem_struct.QuotaPeakPagedPoolUsage,
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'QuotaPagedPoolUsage': mem_struct.QuotaPagedPoolUsage,
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'QuotaPeakNonPagedPoolUsage': mem_struct.QuotaPeakNonPagedPoolUsage,
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'QuotaNonPagedPoolUsage': mem_struct.QuotaNonPagedPoolUsage,
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'PagefileUsage': mem_struct.PagefileUsage,
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'PeakPagefileUsage': mem_struct.PeakPagefileUsage,
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'PrivateUsage': mem_struct.PrivateUsage,
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# win32process does not return PrivateUsage, because it doesn't use
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# PROCESS_MEMORY_COUNTERS_EX (it uses the one without _EX).
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proc = win32process.GetCurrentProcess()
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info = win32process.GetProcessMemoryInfo(proc)
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trace.note('Cannot debug memory on win32 without ctypes'
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trace.note('WorkingSize %7dKB'
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'\tPeakWorking %7dKB\t%s',
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info['WorkingSetSize'] / 1024,
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info['PeakWorkingSetSize'] / 1024,
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trace.note('%s', message)
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trace.note('WorkingSize %8d KB', info['WorkingSetSize'] / 1024)
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trace.note('PeakWorking %8d KB', info['PeakWorkingSetSize'] / 1024)
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trace.note('PagefileUsage %8d KB', info.get('PagefileUsage', 0) / 1024)
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trace.note('PeakPagefileUsage %8d KB', info.get('PeakPagefileUsage', 0) / 1024)
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trace.note('PrivateUsage %8d KB', info.get('PrivateUsage', 0) / 1024)
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trace.note('PageFaultCount %8d', info.get('PageFaultCount', 0))
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def get_console_size(defaultx=80, defaulty=25):
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""" Return size of current console.
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This function try to determine actual size of current working
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console window and return tuple (sizex, sizey) if success,
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or default size (defaultx, defaulty) otherwise.
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Dependencies: ctypes should be installed.
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return (defaultx, defaulty)
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# To avoid problem with redirecting output via pipe
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# need to use stderr instead of stdout
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h = ctypes.windll.kernel32.GetStdHandle(WIN32_STDERR_HANDLE)
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csbi = ctypes.create_string_buffer(22)
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res = ctypes.windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)
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(bufx, bufy, curx, cury, wattr,
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"""Return size of current console.
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This function try to determine actual size of current working
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console window and return tuple (sizex, sizey) if success,
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or default size (defaultx, defaulty) otherwise.
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return (defaultx, defaulty)
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# To avoid problem with redirecting output via pipe
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# we need to use stderr instead of stdout
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h = ctypes.windll.kernel32.GetStdHandle(WIN32_STDERR_HANDLE)
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csbi = ctypes.create_string_buffer(22)
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res = ctypes.windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)
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(bufx, bufy, curx, cury, wattr,
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left, top, right, bottom, maxx, maxy) = struct.unpack("hhhhHhhhhhh", csbi.raw)
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sizex = right - left + 1
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sizey = bottom - top + 1
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return (defaultx, defaulty)
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sizex = right - left + 1
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sizey = bottom - top + 1
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return (sizex, sizey)
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return (defaultx, defaulty)
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def _get_sh_special_folder_path(csidl):
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"""Call SHGetSpecialFolderPathW if available, or return None.
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Result is always unicode (or None).
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SHGetSpecialFolderPath = \
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ctypes.windll.shell32.SHGetSpecialFolderPathW
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except AttributeError:
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buf = ctypes.create_unicode_buffer(MAX_PATH)
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if SHGetSpecialFolderPath(None,buf,csidl,0):
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global has_win32com_shell
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if has_win32com_shell is None:
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from win32com.shell import shell
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has_win32com_shell = True
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has_win32com_shell = False
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if has_win32com_shell:
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# still need to bind the name locally, but this is fast.
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from win32com.shell import shell
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return shell.SHGetSpecialFolderPath(0, csidl, 0)
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# possibly E_NOTIMPL meaning we can't load the function pointer,
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# or E_FAIL meaning the function failed - regardless, just ignore it
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def get_appdata_location():
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"""Return Application Data location.
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Return None if we cannot obtain location.
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Windows defines two 'Application Data' folders per user - a 'roaming'
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one that moves with the user as they logon to different machines, and
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a 'local' one that stays local to the machine. This returns the 'roaming'
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directory, and thus is suitable for storing user-preferences, etc.
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Returned value can be unicode or plain string.
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To convert plain string to unicode use
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s.decode(osutils.get_user_encoding())
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(XXX - but see bug 262874, which asserts the correct encoding is 'mbcs')
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appdata = _get_sh_special_folder_path(CSIDL_APPDATA)
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appdata = os.environ.get('APPDATA')
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# if we fall to this point we on win98
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# at least try C:/WINDOWS/Application Data
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windir = os.environ.get('windir')
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appdata = os.path.join(windir, 'Application Data')
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if os.path.isdir(appdata):
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# did not find anything
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def get_local_appdata_location():
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"""Return Local Application Data location.
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Return the same as get_appdata_location() if we cannot obtain location.
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Windows defines two 'Application Data' folders per user - a 'roaming'
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one that moves with the user as they logon to different machines, and
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a 'local' one that stays local to the machine. This returns the 'local'
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directory, and thus is suitable for caches, temp files and other things
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which don't need to move with the user.
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Returned value can be unicode or plain string.
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To convert plain string to unicode use
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s.decode(osutils.get_user_encoding())
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(XXX - but see bug 262874, which asserts the correct encoding is 'mbcs')
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local = _get_sh_special_folder_path(CSIDL_LOCAL_APPDATA)
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# Vista supplies LOCALAPPDATA, but XP and earlier do not.
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local = os.environ.get('LOCALAPPDATA')
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return get_appdata_location()
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def get_home_location():
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"""Return user's home location.
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Assume on win32 it's the <My Documents> folder.
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If location cannot be obtained return system drive root,
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Returned value can be unicode or plain string.
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To convert plain string to unicode use
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s.decode(osutils.get_user_encoding())
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home = _get_sh_special_folder_path(CSIDL_PERSONAL)
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# try for HOME env variable
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home = os.path.expanduser('~')
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# at least return windows root directory
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windir = os.environ.get('windir')
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return os.path.splitdrive(windir)[0] + '/'
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# otherwise C:\ is good enough for 98% users
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"""Return user name as login name.
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If name cannot be obtained return None.
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Returned value can be unicode or plain string.
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To convert plain string to unicode use
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s.decode(osutils.get_user_encoding())
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advapi32 = ctypes.windll.advapi32
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GetUserName = getattr(advapi32, 'GetUserName'+suffix)
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except AttributeError:
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buf = create_buffer(UNLEN+1)
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n = ctypes.c_int(UNLEN+1)
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if GetUserName(buf, ctypes.byref(n)):
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# otherwise try env variables
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return os.environ.get('USERNAME', None)
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# 1 == ComputerNameDnsHostname, which returns "The DNS host name of the local
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# computer or the cluster associated with the local computer."
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_WIN32_ComputerNameDnsHostname = 1
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"""Return host machine name.
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If name cannot be obtained return None.
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:return: A unicode string representing the host name. On win98, this may be
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a plain string as win32 api doesn't support unicode.
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return win32api.GetComputerNameEx(_WIN32_ComputerNameDnsHostname)
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except (NotImplementedError, win32api.error):
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# NotImplemented will happen on win9x...
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kernel32 = ctypes.windll.kernel32
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except AttributeError:
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pass # Missing the module we need
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buf = create_buffer(MAX_COMPUTERNAME_LENGTH+1)
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n = ctypes.c_int(MAX_COMPUTERNAME_LENGTH+1)
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# Try GetComputerNameEx which gives a proper Unicode hostname
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GetComputerNameEx = getattr(kernel32, 'GetComputerNameEx'+suffix,
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if (GetComputerNameEx is not None
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and GetComputerNameEx(_WIN32_ComputerNameDnsHostname,
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buf, ctypes.byref(n))):
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# Try GetComputerName in case GetComputerNameEx wasn't found
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# It returns the NETBIOS name, which isn't as good, but still ok.
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# The first GetComputerNameEx might have changed 'n', so reset it
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n = ctypes.c_int(MAX_COMPUTERNAME_LENGTH+1)
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GetComputerName = getattr(kernel32, 'GetComputerName'+suffix,
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if (GetComputerName is not None
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and GetComputerName(buf, ctypes.byref(n))):
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# otherwise try env variables, which will be 'mbcs' encoded
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# on Windows (Python doesn't expose the native win32 unicode environment)
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# http://msdn.microsoft.com/en-us/library/aa246807.aspx
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# environment variables should always be encoded in 'mbcs'.
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return os.environ['COMPUTERNAME'].decode("mbcs")
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def _ensure_unicode(s):
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if s and type(s) != unicode:
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from bzrlib import osutils
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s = s.decode(osutils.get_user_encoding())
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def get_appdata_location_unicode():
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return _ensure_unicode(get_appdata_location())
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def get_home_location_unicode():
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return _ensure_unicode(get_home_location())
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def get_user_name_unicode():
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return _ensure_unicode(get_user_name())
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def get_host_name_unicode():
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return _ensure_unicode(get_host_name())
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def _ensure_with_dir(path):
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if not os.path.split(path)[0] or path.startswith(u'*') or path.startswith(u'?'):
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return u'./' + path, True
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def _undo_ensure_with_dir(path, corrected):
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def glob_one(possible_glob):
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"""Same as glob.glob().
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work around bugs in glob.glob()
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- Python bug #1001604 ("glob doesn't return unicode with ...")
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- failing expansion for */* with non-iso-8859-* chars
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corrected_glob, corrected = _ensure_with_dir(possible_glob)
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glob_files = glob.glob(corrected_glob)
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# special case to let the normal code path handle
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# files that do not exist, etc.
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glob_files = [possible_glob]
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glob_files = [_undo_ensure_with_dir(elem, corrected)
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for elem in glob_files]
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return [elem.replace(u'\\', u'/') for elem in glob_files]
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def glob_expand(file_list):
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"""Replacement for glob expansion by the shell.
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Win32's cmd.exe does not do glob expansion (eg ``*.py``), so we do our own
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:param file_list: A list of filenames which may include shell globs.
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:return: An expanded list of filenames.
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Introduced in bzrlib 0.18.
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expanded_file_list = []
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for possible_glob in file_list:
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expanded_file_list.extend(glob_one(possible_glob))
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return expanded_file_list
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def get_app_path(appname):
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"""Look up in Windows registry for full path to application executable.
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Typically, applications create subkey with their basename
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in HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\
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:param appname: name of application (if no filename extension
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is specified, .exe used)
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:return: full path to aplication executable from registry,
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or appname itself if nothing found.
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if not os.path.splitext(basename)[1]:
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basename = appname + '.exe'
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hkey = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE,
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'SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\App Paths\\' +
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except EnvironmentError:
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path, type_id = _winreg.QueryValueEx(hkey, '')
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_winreg.CloseKey(hkey)
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if type_id == REG_SZ:
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if type_id == REG_EXPAND_SZ and has_win32api:
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fullpath = win32api.ExpandEnvironmentStrings(path)
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if len(fullpath) > 1 and fullpath[0] == '"' and fullpath[-1] == '"':
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fullpath = fullpath[1:-1] # remove quotes around value
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def set_file_attr_hidden(path):
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"""Set file attributes to hidden if possible"""
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if winver != 'Windows 98':
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SetFileAttributes = win32file.SetFileAttributesW
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SetFileAttributes = win32file.SetFileAttributes
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SetFileAttributes(path, win32file.FILE_ATTRIBUTE_HIDDEN)
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except pywintypes.error, e:
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from bzrlib import trace
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trace.mutter('Unable to set hidden attribute on %r: %s', path, e)
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class UnicodeShlex(object):
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"""This is a very simplified version of shlex.shlex.
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The main change is that it supports non-ascii input streams. The internal
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structure is quite simplified relative to shlex.shlex, since we aren't
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trying to handle multiple input streams, etc. In fact, we don't use a
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file-like api either.
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def __init__(self, uni_string):
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self._input = uni_string
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self._input_iter = iter(self._input)
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self._whitespace_match = re.compile(u'\s').match
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self._word_match = re.compile(u'\S').match
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self._quote_chars = u'"'
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# self._quote_match = re.compile(u'[\'"]').match
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self._escape_match = lambda x: None # Never matches
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# ' ' - after whitespace, starting a new token
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# 'a' - after text, currently working on a token
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# '"' - after ", currently in a "-delimited quoted section
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# "\" - after '\', checking the next char
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self._token = [] # Current token being parsed
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def _get_token(self):
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# Were there quote chars as part of this token?
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for nextchar in self._input_iter:
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if self._state == ' ':
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if self._whitespace_match(nextchar):
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# if self._token: return token
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elif nextchar in self._quote_chars:
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self._state = nextchar # quoted state
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elif self._word_match(nextchar):
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self._token.append(nextchar)
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raise AssertionError('wtttf?')
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elif self._state in self._quote_chars:
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if nextchar == self._state: # End of quote
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self._state = 'a' # posix allows 'foo'bar to translate to
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elif self._state == '"' and nextchar == self._escape:
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quoted_state = self._state
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self._state = nextchar
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self._token.append(nextchar)
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elif self._state == self._escape:
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self._token.append('\\')
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elif nextchar == '"':
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self._token.append(nextchar)
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self._token.append('\\' + nextchar)
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self._state = quoted_state
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elif self._state == 'a':
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if self._whitespace_match(nextchar):
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break # emit this token
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continue # no token to emit
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elif nextchar in self._quote_chars:
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# Start a new quoted section
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self._state = nextchar
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elif (self._word_match(nextchar)
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or nextchar in self._quote_chars
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# or whitespace_split?
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self._token.append(nextchar)
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raise AssertionError('state == "a", char: %r'
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raise AssertionError('unknown state: %r' % (self._state,))
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result = ''.join(self._token)
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if not quoted and result == '':
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return quoted, result
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quoted, token = self._get_token()
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def _command_line_to_argv(command_line):
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"""Convert a Unicode command line into a set of argv arguments.
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This does wildcard expansion, etc. It is intended to make wildcards act
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closer to how they work in posix shells, versus how they work by default on
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s = UnicodeShlex(command_line)
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# Now that we've split the content, expand globs
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# TODO: Use 'globbing' instead of 'glob.glob', this gives us stuff like
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for is_quoted, arg in s:
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if is_quoted or not glob.has_magic(arg):
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args.extend(glob_one(arg))
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if has_ctypes and winver != 'Windows 98':
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def get_unicode_argv():
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LPCWSTR = ctypes.c_wchar_p
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POINTER = ctypes.POINTER
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prototype = ctypes.WINFUNCTYPE(LPCWSTR)
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GetCommandLine = prototype(("GetCommandLineW",
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ctypes.windll.kernel32))
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prototype = ctypes.WINFUNCTYPE(POINTER(LPCWSTR), LPCWSTR, POINTER(INT))
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command_line = GetCommandLine()
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# Skip the first argument, since we only care about parameters
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argv = _command_line_to_argv(command_line)[1:]
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if getattr(sys, 'frozen', None) is None:
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# Invoked via 'python.exe' which takes the form:
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# python.exe [PYTHON_OPTIONS] C:\Path\bzr [BZR_OPTIONS]
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# we need to get only BZR_OPTIONS part,
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# We already removed 'python.exe' so we remove everything up to and
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# including the first non-option ('-') argument.
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for idx in xrange(len(argv)):
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if argv[idx][:1] != '-':
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get_unicode_argv = None
added
removed
bzrlib/win32utils.py
