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comparison mercurial/win32.py @ 8421:b6d0fa8c7685

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posixfile: remove posixfile_nt and fix import bug in windows.py The posixfile_nt class has been superseded by posixfile in osutils.c, which works on Windows NT and above. All other systems get the regular python file class which is assigned to posixfile in posix.py (for POSIX) and in the pure python version of osutils.py (for Win 9x or Windows NT in pure mode).
author Sune Foldager <cryo@cyanite.org>
date Wed, 13 May 2009 21:36:16 +0200
parents 79a12651d46b
children 284fda4cd093
comparison
equal deleted inserted replaced
8420:f53bc3e37655 8421:b6d0fa8c7685
262 shell.SHGetSpecialFolderLocation(0, shellcon.CSIDL_APPDATA)) 262 shell.SHGetSpecialFolderLocation(0, shellcon.CSIDL_APPDATA))
263 userdir = os.path.dirname(appdir) 263 userdir = os.path.dirname(appdir)
264 return [os.path.join(userdir, 'mercurial.ini'), 264 return [os.path.join(userdir, 'mercurial.ini'),
265 os.path.join(userdir, '.hgrc')] 265 os.path.join(userdir, '.hgrc')]
266 266
267 class posixfile_nt(object):
268 '''file object with posix-like semantics. on windows, normal
269 files can not be deleted or renamed if they are open. must open
270 with win32file.FILE_SHARE_DELETE. this flag does not exist on
271 windows < nt, so do not use this class there.'''
272
273 # ideally, we could use win32file._open_osfhandle and avoid this
274 # class entirely, but we would need the win32 _fdopen function,
275 # which is not exported by the win32file module.
276
277 def __init__(self, name, mode='rb'):
278 self.closed = False
279 self.name = name
280 self.mode = mode
281 access = 0
282 if 'r' in mode or '+' in mode:
283 access |= win32file.GENERIC_READ
284 if 'w' in mode or 'a' in mode or '+' in mode:
285 access |= win32file.GENERIC_WRITE
286 if 'r' in mode:
287 creation = win32file.OPEN_EXISTING
288 elif 'a' in mode:
289 creation = win32file.OPEN_ALWAYS
290 else:
291 creation = win32file.CREATE_ALWAYS
292 try:
293 self.handle = win32file.CreateFile(name,
294 access,
295 win32file.FILE_SHARE_READ |
296 win32file.FILE_SHARE_WRITE |
297 win32file.FILE_SHARE_DELETE,
298 None,
299 creation,
300 win32file.FILE_ATTRIBUTE_NORMAL,
301 0)
302 except pywintypes.error, err:
303 raise WinIOError(err, name)
304
305 def __iter__(self):
306 for line in self.readlines():
307 yield line
308
309 def read(self, count=-1):
310 try:
311 cs = cStringIO.StringIO()
312 while count:
313 wincount = int(count)
314 if wincount == -1:
315 wincount = 1048576
316 val, data = win32file.ReadFile(self.handle, wincount)
317 if not data: break
318 cs.write(data)
319 if count != -1:
320 count -= len(data)
321 return cs.getvalue()
322 except pywintypes.error, err:
323 raise WinIOError(err)
324
325 def readlines(self, sizehint=None):
326 # splitlines() splits on single '\r' while readlines()
327 # does not. cStringIO has a well behaving readlines() and is fast.
328 return cStringIO.StringIO(self.read()).readlines()
329
330 def write(self, data):
331 try:
332 if 'a' in self.mode:
333 win32file.SetFilePointer(self.handle, 0, win32file.FILE_END)
334 nwrit = 0
335 while nwrit < len(data):
336 val, nwrit = win32file.WriteFile(self.handle, data)
337 data = data[nwrit:]
338 except pywintypes.error, err:
339 raise WinIOError(err)
340
341 def writelines(self, sequence):
342 for s in sequence:
343 self.write(s)
344
345 def seek(self, pos, whence=0):
346 try:
347 win32file.SetFilePointer(self.handle, int(pos), whence)
348 except pywintypes.error, err:
349 raise WinIOError(err)
350
351 def tell(self):
352 try:
353 return win32file.SetFilePointer(self.handle, 0,
354 win32file.FILE_CURRENT)
355 except pywintypes.error, err:
356 raise WinIOError(err)
357
358 def close(self):
359 if not self.closed:
360 self.handle = None
361 self.closed = True
362
363 def flush(self):
364 # we have no application-level buffering
365 pass
366
367 def truncate(self, pos=0):
368 try:
369 win32file.SetFilePointer(self.handle, int(pos),
370 win32file.FILE_BEGIN)
371 win32file.SetEndOfFile(self.handle)
372 except pywintypes.error, err:
373 raise WinIOError(err)
374
375 def getuser(): 267 def getuser():
376 '''return name of current user''' 268 '''return name of current user'''
377 return win32api.GetUserName() 269 return win32api.GetUserName()
378 270
379 def set_signal_handler_win32(): 271 def set_signal_handler_win32():