# util_win32.py - utility functions that use win32 API # # Copyright 2005 Matt Mackall # Copyright 2006 Vadim Gelfer # # This software may be used and distributed according to the terms of # the GNU General Public License, incorporated herein by reference. # Mark Hammond's win32all package allows better functionality on # Windows. this module overrides definitions in util.py. if not # available, import of this module will fail, and generic code will be # used. import win32api from demandload import * from i18n import gettext as _ demandload(globals(), 'errno os pywintypes win32con win32file win32process') demandload(globals(), 'winerror') class WinError(OSError): winerror_map = { winerror.ERROR_ACCESS_DENIED: errno.EACCES, winerror.ERROR_ACCOUNT_DISABLED: errno.EACCES, winerror.ERROR_ACCOUNT_RESTRICTION: errno.EACCES, winerror.ERROR_ALREADY_ASSIGNED: errno.EBUSY, winerror.ERROR_ALREADY_EXISTS: errno.EEXIST, winerror.ERROR_ARITHMETIC_OVERFLOW: errno.ERANGE, winerror.ERROR_BAD_COMMAND: errno.EIO, winerror.ERROR_BAD_DEVICE: errno.ENODEV, winerror.ERROR_BAD_DRIVER_LEVEL: errno.ENXIO, winerror.ERROR_BAD_EXE_FORMAT: errno.ENOEXEC, winerror.ERROR_BAD_FORMAT: errno.ENOEXEC, winerror.ERROR_BAD_LENGTH: errno.EINVAL, winerror.ERROR_BAD_PATHNAME: errno.ENOENT, winerror.ERROR_BAD_PIPE: errno.EPIPE, winerror.ERROR_BAD_UNIT: errno.ENODEV, winerror.ERROR_BAD_USERNAME: errno.EINVAL, winerror.ERROR_BROKEN_PIPE: errno.EPIPE, winerror.ERROR_BUFFER_OVERFLOW: errno.ENAMETOOLONG, winerror.ERROR_BUSY: errno.EBUSY, winerror.ERROR_BUSY_DRIVE: errno.EBUSY, winerror.ERROR_CALL_NOT_IMPLEMENTED: errno.ENOSYS, winerror.ERROR_CANNOT_MAKE: errno.EACCES, winerror.ERROR_CANTOPEN: errno.EIO, winerror.ERROR_CANTREAD: errno.EIO, winerror.ERROR_CANTWRITE: errno.EIO, winerror.ERROR_CRC: errno.EIO, winerror.ERROR_CURRENT_DIRECTORY: errno.EACCES, winerror.ERROR_DEVICE_IN_USE: errno.EBUSY, winerror.ERROR_DEV_NOT_EXIST: errno.ENODEV, winerror.ERROR_DIRECTORY: errno.EINVAL, winerror.ERROR_DIR_NOT_EMPTY: errno.ENOTEMPTY, winerror.ERROR_DISK_CHANGE: errno.EIO, winerror.ERROR_DISK_FULL: errno.ENOSPC, winerror.ERROR_DRIVE_LOCKED: errno.EBUSY, winerror.ERROR_ENVVAR_NOT_FOUND: errno.EINVAL, winerror.ERROR_EXE_MARKED_INVALID: errno.ENOEXEC, winerror.ERROR_FILENAME_EXCED_RANGE: errno.ENAMETOOLONG, winerror.ERROR_FILE_EXISTS: errno.EEXIST, winerror.ERROR_FILE_INVALID: errno.ENODEV, winerror.ERROR_FILE_NOT_FOUND: errno.ENOENT, winerror.ERROR_GEN_FAILURE: errno.EIO, winerror.ERROR_HANDLE_DISK_FULL: errno.ENOSPC, winerror.ERROR_INSUFFICIENT_BUFFER: errno.ENOMEM, winerror.ERROR_INVALID_ACCESS: errno.EACCES, winerror.ERROR_INVALID_ADDRESS: errno.EFAULT, winerror.ERROR_INVALID_BLOCK: errno.EFAULT, winerror.ERROR_INVALID_DATA: errno.EINVAL, winerror.ERROR_INVALID_DRIVE: errno.ENODEV, winerror.ERROR_INVALID_EXE_SIGNATURE: errno.ENOEXEC, winerror.ERROR_INVALID_FLAGS: errno.EINVAL, winerror.ERROR_INVALID_FUNCTION: errno.ENOSYS, winerror.ERROR_INVALID_HANDLE: errno.EBADF, winerror.ERROR_INVALID_LOGON_HOURS: errno.EACCES, winerror.ERROR_INVALID_NAME: errno.EINVAL, winerror.ERROR_INVALID_OWNER: errno.EINVAL, winerror.ERROR_INVALID_PARAMETER: errno.EINVAL, winerror.ERROR_INVALID_PASSWORD: errno.EPERM, winerror.ERROR_INVALID_PRIMARY_GROUP: errno.EINVAL, winerror.ERROR_INVALID_SIGNAL_NUMBER: errno.EINVAL, winerror.ERROR_INVALID_TARGET_HANDLE: errno.EIO, winerror.ERROR_INVALID_WORKSTATION: errno.EACCES, winerror.ERROR_IO_DEVICE: errno.EIO, winerror.ERROR_IO_INCOMPLETE: errno.EINTR, winerror.ERROR_LOCKED: errno.EBUSY, winerror.ERROR_LOCK_VIOLATION: errno.EACCES, winerror.ERROR_LOGON_FAILURE: errno.EACCES, winerror.ERROR_MAPPED_ALIGNMENT: errno.EINVAL, winerror.ERROR_META_EXPANSION_TOO_LONG: errno.E2BIG, winerror.ERROR_MORE_DATA: errno.EPIPE, winerror.ERROR_NEGATIVE_SEEK: errno.ESPIPE, winerror.ERROR_NOACCESS: errno.EFAULT, winerror.ERROR_NONE_MAPPED: errno.EINVAL, winerror.ERROR_NOT_ENOUGH_MEMORY: errno.ENOMEM, winerror.ERROR_NOT_READY: errno.EAGAIN, winerror.ERROR_NOT_SAME_DEVICE: errno.EXDEV, winerror.ERROR_NO_DATA: errno.EPIPE, winerror.ERROR_NO_MORE_SEARCH_HANDLES: errno.EIO, winerror.ERROR_NO_PROC_SLOTS: errno.EAGAIN, winerror.ERROR_NO_SUCH_PRIVILEGE: errno.EACCES, winerror.ERROR_OPEN_FAILED: errno.EIO, winerror.ERROR_OPEN_FILES: errno.EBUSY, winerror.ERROR_OPERATION_ABORTED: errno.EINTR, winerror.ERROR_OUTOFMEMORY: errno.ENOMEM, winerror.ERROR_PASSWORD_EXPIRED: errno.EACCES, winerror.ERROR_PATH_BUSY: errno.EBUSY, winerror.ERROR_PATH_NOT_FOUND: errno.ENOTDIR, winerror.ERROR_PIPE_BUSY: errno.EBUSY, winerror.ERROR_PIPE_CONNECTED: errno.EPIPE, winerror.ERROR_PIPE_LISTENING: errno.EPIPE, winerror.ERROR_PIPE_NOT_CONNECTED: errno.EPIPE, winerror.ERROR_PRIVILEGE_NOT_HELD: errno.EACCES, winerror.ERROR_READ_FAULT: errno.EIO, winerror.ERROR_SEEK: errno.EIO, winerror.ERROR_SEEK_ON_DEVICE: errno.ESPIPE, winerror.ERROR_SHARING_BUFFER_EXCEEDED: errno.ENFILE, winerror.ERROR_SHARING_VIOLATION: errno.EACCES, winerror.ERROR_STACK_OVERFLOW: errno.ENOMEM, winerror.ERROR_SWAPERROR: errno.ENOENT, winerror.ERROR_TOO_MANY_MODULES: errno.EMFILE, winerror.ERROR_TOO_MANY_OPEN_FILES: errno.EMFILE, winerror.ERROR_UNRECOGNIZED_MEDIA: errno.ENXIO, winerror.ERROR_UNRECOGNIZED_VOLUME: errno.ENODEV, winerror.ERROR_WAIT_NO_CHILDREN: errno.ECHILD, winerror.ERROR_WRITE_FAULT: errno.EIO, winerror.ERROR_WRITE_PROTECT: errno.EROFS, } def __init__(self, err): self.win_errno, self.win_function, self.win_strerror = err OSError.__init__(self, self.winerror_map.get(self.win_errno, 0), self.win_strerror) def os_link(src, dst): # NB will only succeed on NTFS try: win32file.CreateHardLink(dst, src) except pywintypes.error, details: raise WinError(details) def nlinks(pathname): """Return number of hardlinks for the given file.""" try: fh = win32file.CreateFile(pathname, win32file.GENERIC_READ, win32file.FILE_SHARE_READ, None, win32file.OPEN_EXISTING, 0, None) res = win32file.GetFileInformationByHandle(fh) fh.Close() return res[7] except pywintypes.error: return os.stat(pathname).st_nlink def testpid(pid): '''return True if pid is still running or unable to determine, False otherwise''' try: handle = win32api.OpenProcess( win32con.PROCESS_QUERY_INFORMATION, False, pid) if handle: status = win32process.GetExitCodeProcess(handle) return status == win32con.STILL_ACTIVE except pywintypes.error, details: return details[0] != winerror.ERROR_INVALID_PARAMETER return True def system_rcpath_win32(): '''return default os-specific hgrc search path''' proc = win32api.GetCurrentProcess() filename = win32process.GetModuleFileNameEx(proc, 0) return [os.path.join(os.path.dirname(filename), 'mercurial.ini')]