Mercurial > hg
view mercurial/util_win32.py @ 2328:f789602ba840
hgweb.manifest: revno of manifest and changelog aren't always the same
In the v4l-dvb repo, the manifest revno and the changelog revno are not
in sync. This happened because the same patch was applied to the same
revision in two different branches, resulting in the same manifest text,
with the same parents and so the first revision was reused.
Since hgweb.manifest was assuming the revnos of the manifest and of the
changelog were always the same, clicking on manifest -> bz2 in the
v4l-dvb site would download the wrong revision.
Use the linkrev to go from manifest revision to changelog revision.
This still won't be perfect since the page will still talk about
"manifest for changeset XYZ", where XYZ was the first changeset to have
this manifest, which is not necessarily the same changeset that the user
clicked to get to this page - but at least the contents will be the
same.
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
---|---|
date | Sat, 20 May 2006 15:34:19 -0300 |
parents | a600d9997521 |
children | b77a2ef61b81 |
line wrap: on
line source
# util_win32.py - utility functions that use win32 API # # Copyright 2005 Matt Mackall <mpm@selenic.com> # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> # # 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(), 'cStringIO win32com.shell:shell,shellcon winerror') class WinError: 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.ENOENT, 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 if self.win_strerror.endswith('.'): self.win_strerror = self.win_strerror[:-1] class WinIOError(WinError, IOError): def __init__(self, err, filename=None): WinError.__init__(self, err) IOError.__init__(self, self.winerror_map.get(self.win_errno, 0), self.win_strerror) self.filename = filename class WinOSError(WinError, OSError): def __init__(self, err): WinError.__init__(self, 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 WinOSError(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() try: # This will fail on windows < NT filename = win32process.GetModuleFileNameEx(proc, 0) except: filename = win32api.GetModuleFileName(0) return [os.path.join(os.path.dirname(filename), 'mercurial.ini')] def user_rcpath(): '''return os-specific hgrc search path to the user dir''' userdir = os.path.expanduser('~') if userdir == '~': # We are on win < nt: fetch the APPDATA directory location and use # the parent directory as the user home dir. appdir = shell.SHGetPathFromIDList( shell.SHGetSpecialFolderLocation(0, shellcon.CSIDL_APPDATA)) userdir = os.path.dirname(appdir) return os.path.join(userdir, 'mercurial.ini') class posixfile_nt(object): '''file object with posix-like semantics. on windows, normal files can not be deleted or renamed if they are open. must open with win32file.FILE_SHARE_DELETE. this flag does not exist on windows < nt, so do not use this class there.''' # tried to use win32file._open_osfhandle to pass fd to os.fdopen, # but does not work at all. wrap win32 file api instead. def __init__(self, name, mode='rb'): access = 0 if 'r' in mode or '+' in mode: access |= win32file.GENERIC_READ if 'w' in mode or 'a' in mode: access |= win32file.GENERIC_WRITE if 'r' in mode: creation = win32file.OPEN_EXISTING elif 'a' in mode: creation = win32file.OPEN_ALWAYS else: creation = win32file.CREATE_ALWAYS try: self.handle = win32file.CreateFile(name, access, win32file.FILE_SHARE_READ | win32file.FILE_SHARE_WRITE | win32file.FILE_SHARE_DELETE, None, creation, win32file.FILE_ATTRIBUTE_NORMAL, 0) except pywintypes.error, err: raise WinIOError(err, name) self.closed = False self.name = name self.mode = mode def __iter__(self): for line in self.read().splitlines(True): yield line def read(self, count=-1): try: cs = cStringIO.StringIO() while count: wincount = int(count) if wincount == -1: wincount = 1048576 val, data = win32file.ReadFile(self.handle, wincount) if not data: break cs.write(data) if count != -1: count -= len(data) return cs.getvalue() except pywintypes.error, err: raise WinIOError(err) def write(self, data): try: if 'a' in self.mode: win32file.SetFilePointer(self.handle, 0, win32file.FILE_END) nwrit = 0 while nwrit < len(data): val, nwrit = win32file.WriteFile(self.handle, data) data = data[nwrit:] except pywintypes.error, err: raise WinIOError(err) def seek(self, pos, whence=0): try: win32file.SetFilePointer(self.handle, int(pos), whence) except pywintypes.error, err: raise WinIOError(err) def tell(self): try: return win32file.SetFilePointer(self.handle, 0, win32file.FILE_CURRENT) except pywintypes.error, err: raise WinIOError(err) def close(self): if not self.closed: self.handle = None self.closed = True def flush(self): try: win32file.FlushFileBuffers(self.handle) except pywintypes.error, err: raise WinIOError(err) def truncate(self, pos=0): try: win32file.SetFilePointer(self.handle, int(pos), win32file.FILE_BEGIN) win32file.SetEndOfFile(self.handle) except pywintypes.error, err: raise WinIOError(err)