cpython/Demo/pdist/RCSProxy.py

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#! /usr/bin/env python3
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"""RCS Proxy.
Provide a simplified interface on RCS files, locally or remotely.
The functionality is geared towards implementing some sort of
remote CVS like utility. It is modeled after the similar module
FSProxy.
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The module defines two classes:
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RCSProxyLocal -- used for local access
RCSProxyServer -- used on the server side of remote access
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The corresponding client class, RCSProxyClient, is defined in module
rcsclient.
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The remote classes are instantiated with an IP address and an optional
verbosity flag.
"""
import server
import md5
import os
import fnmatch
import string
import tempfile
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import rcslib
class DirSupport:
def __init__(self):
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self._dirstack = []
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def __del__(self):
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self._close()
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def _close(self):
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while self._dirstack:
self.back()
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def pwd(self):
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return os.getcwd()
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def cd(self, name):
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save = os.getcwd()
os.chdir(name)
self._dirstack.append(save)
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def back(self):
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if not self._dirstack:
raise os.error("empty directory stack")
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dir = self._dirstack[-1]
os.chdir(dir)
del self._dirstack[-1]
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def listsubdirs(self, pat = None):
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files = os.listdir(os.curdir)
files = list(filter(os.path.isdir, files))
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return self._filter(files, pat)
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def isdir(self, name):
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return os.path.isdir(name)
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def mkdir(self, name):
os.mkdir(name, 0o777)
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def rmdir(self, name):
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os.rmdir(name)
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class RCSProxyLocal(rcslib.RCS, DirSupport):
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def __init__(self):
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rcslib.RCS.__init__(self)
DirSupport.__init__(self)
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def __del__(self):
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DirSupport.__del__(self)
rcslib.RCS.__del__(self)
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def sumlist(self, list = None):
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return self._list(self.sum, list)
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def sumdict(self, list = None):
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return self._dict(self.sum, list)
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def sum(self, name_rev):
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f = self._open(name_rev)
BUFFERSIZE = 1024*8
sum = md5.new()
while 1:
buffer = f.read(BUFFERSIZE)
if not buffer:
break
sum.update(buffer)
self._closepipe(f)
return sum.digest()
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def get(self, name_rev):
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f = self._open(name_rev)
data = f.read()
self._closepipe(f)
return data
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def put(self, name_rev, data, message=None):
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name, rev = self._unmangle(name_rev)
f = open(name, 'w')
f.write(data)
f.close()
self.checkin(name_rev, message)
self._remove(name)
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def _list(self, function, list = None):
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"""INTERNAL: apply FUNCTION to all files in LIST.
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Return a list of the results.
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The list defaults to all files in the directory if None.
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"""
if list is None:
list = self.listfiles()
res = []
for name in list:
try:
res.append((name, function(name)))
except (os.error, IOError):
res.append((name, None))
return res
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def _dict(self, function, list = None):
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"""INTERNAL: apply FUNCTION to all files in LIST.
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Return a dictionary mapping files to results.
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The list defaults to all files in the directory if None.
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"""
if list is None:
list = self.listfiles()
dict = {}
for name in list:
try:
dict[name] = function(name)
except (os.error, IOError):
pass
return dict
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class RCSProxyServer(RCSProxyLocal, server.SecureServer):
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def __init__(self, address, verbose = server.VERBOSE):
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RCSProxyLocal.__init__(self)
server.SecureServer.__init__(self, address, verbose)
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def _close(self):
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server.SecureServer._close(self)
RCSProxyLocal._close(self)
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def _serve(self):
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server.SecureServer._serve(self)
# Retreat into start directory
while self._dirstack: self.back()
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def test_server():
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import string
import sys
if sys.argv[1:]:
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port = string.atoi(sys.argv[1])
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else:
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port = 4127
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proxy = RCSProxyServer(('', port))
proxy._serverloop()
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def test():
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import sys
if not sys.argv[1:] or sys.argv[1] and sys.argv[1][0] in '0123456789':
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test_server()
sys.exit(0)
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proxy = RCSProxyLocal()
what = sys.argv[1]
if hasattr(proxy, what):
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attr = getattr(proxy, what)
Merged revisions 55407-55513 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/p3yk ................ r55413 | fred.drake | 2007-05-17 12:30:10 -0700 (Thu, 17 May 2007) | 1 line fix argument name in documentation; match the implementation ................ r55430 | jack.diederich | 2007-05-18 06:39:59 -0700 (Fri, 18 May 2007) | 1 line Implements class decorators, PEP 3129. ................ r55432 | guido.van.rossum | 2007-05-18 08:09:41 -0700 (Fri, 18 May 2007) | 2 lines obsubmit. ................ r55434 | guido.van.rossum | 2007-05-18 09:39:10 -0700 (Fri, 18 May 2007) | 3 lines Fix bug in test_inspect. (I presume this is how it should be fixed; Jack Diedrich, please verify.) ................ r55460 | brett.cannon | 2007-05-20 00:31:57 -0700 (Sun, 20 May 2007) | 4 lines Remove the imageop module. With imgfile already removed in Python 3.0 and rgbimg gone in Python 2.6 the unit tests themselves were made worthless. Plus third-party libraries perform the same function much better. ................ r55469 | neal.norwitz | 2007-05-20 11:28:20 -0700 (Sun, 20 May 2007) | 118 lines Merged revisions 55324-55467 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r55348 | georg.brandl | 2007-05-15 13:19:34 -0700 (Tue, 15 May 2007) | 4 lines HTML-escape the plain traceback in cgitb's HTML output, to prevent the traceback inadvertently or maliciously closing the comment and injecting HTML into the error page. ........ r55372 | neal.norwitz | 2007-05-15 21:33:50 -0700 (Tue, 15 May 2007) | 6 lines Port rev 55353 from Guido: Add what looks like a necessary call to PyErr_NoMemory() when PyMem_MALLOC() fails. Will backport. ........ r55377 | neal.norwitz | 2007-05-15 22:06:33 -0700 (Tue, 15 May 2007) | 1 line Mention removal of some directories for obsolete platforms ........ r55380 | brett.cannon | 2007-05-15 22:50:03 -0700 (Tue, 15 May 2007) | 2 lines Change the maintainer of the BeOS port. ........ r55383 | georg.brandl | 2007-05-16 06:44:18 -0700 (Wed, 16 May 2007) | 2 lines Bug #1719995: don't use deprecated method in sets example. ........ r55386 | neal.norwitz | 2007-05-16 13:05:11 -0700 (Wed, 16 May 2007) | 5 lines Fix bug in marshal where bad data would cause a segfault due to lack of an infinite recursion check. Contributed by Damien Miller at Google. ........ r55389 | brett.cannon | 2007-05-16 15:42:29 -0700 (Wed, 16 May 2007) | 6 lines Remove the gopherlib module. It has been raising a DeprecationWarning since Python 2.5. Also remove gopher support from urllib/urllib2. As both imported gopherlib the usage of the support would have raised a DeprecationWarning. ........ r55394 | raymond.hettinger | 2007-05-16 18:08:04 -0700 (Wed, 16 May 2007) | 1 line calendar.py gets no benefit from xrange() instead of range() ........ r55395 | brett.cannon | 2007-05-16 19:02:56 -0700 (Wed, 16 May 2007) | 3 lines Complete deprecation of BaseException.message. Some subclasses were directly accessing the message attribute instead of using the descriptor. ........ r55396 | neal.norwitz | 2007-05-16 23:11:36 -0700 (Wed, 16 May 2007) | 4 lines Reduce the max stack depth to see if this fixes the segfaults on Windows and some other boxes. If this is successful, this rev should be backported. I'm not sure how close to the limit we should push this. ........ r55397 | neal.norwitz | 2007-05-16 23:23:50 -0700 (Wed, 16 May 2007) | 4 lines Set the depth to something very small to try to determine if the crashes on Windows are really due to the stack size or possibly some other problem. ........ r55398 | neal.norwitz | 2007-05-17 00:04:46 -0700 (Thu, 17 May 2007) | 4 lines Last try for tweaking the max stack depth. 5000 was the original value, 4000 didn't work either. 1000 does work on Windows. If 2000 works, that will hopefully be a reasonable balance. ........ r55412 | fred.drake | 2007-05-17 12:29:58 -0700 (Thu, 17 May 2007) | 1 line fix argument name in documentation; match the implementation ........ r55427 | neal.norwitz | 2007-05-17 22:47:16 -0700 (Thu, 17 May 2007) | 1 line Verify neither dumps or loads overflow the stack and segfault. ........ r55446 | collin.winter | 2007-05-18 16:11:24 -0700 (Fri, 18 May 2007) | 1 line Backport PEP 3110's new 'except' syntax to 2.6. ........ r55448 | raymond.hettinger | 2007-05-18 18:11:16 -0700 (Fri, 18 May 2007) | 1 line Improvements to NamedTuple's implementation, tests, and documentation ........ r55449 | raymond.hettinger | 2007-05-18 18:50:11 -0700 (Fri, 18 May 2007) | 1 line Fix beginner mistake -- don't mix spaces and tabs. ........ r55450 | neal.norwitz | 2007-05-18 20:48:47 -0700 (Fri, 18 May 2007) | 1 line Clear data so random memory does not get freed. Will backport. ........ r55452 | neal.norwitz | 2007-05-18 21:34:55 -0700 (Fri, 18 May 2007) | 3 lines Whoops, need to pay attention to those test failures. Move the clear to *before* the first use, not after. ........ r55453 | neal.norwitz | 2007-05-18 21:35:52 -0700 (Fri, 18 May 2007) | 1 line Give some clue as to what happened if the test fails. ........ r55455 | georg.brandl | 2007-05-19 11:09:26 -0700 (Sat, 19 May 2007) | 2 lines Fix docstring for add_package in site.py. ........ r55458 | brett.cannon | 2007-05-20 00:09:50 -0700 (Sun, 20 May 2007) | 2 lines Remove the rgbimg module. It has been deprecated since Python 2.5. ........ r55465 | nick.coghlan | 2007-05-20 04:12:49 -0700 (Sun, 20 May 2007) | 1 line Fix typo in example (should be backported, but my maintenance branch is woefully out of date) ........ ................ r55472 | brett.cannon | 2007-05-20 12:06:18 -0700 (Sun, 20 May 2007) | 2 lines Remove imageop from the Windows build process. ................ r55486 | neal.norwitz | 2007-05-20 23:59:52 -0700 (Sun, 20 May 2007) | 1 line Remove callable() builtin ................ r55506 | neal.norwitz | 2007-05-22 00:43:29 -0700 (Tue, 22 May 2007) | 78 lines Merged revisions 55468-55505 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r55468 | neal.norwitz | 2007-05-20 11:06:27 -0700 (Sun, 20 May 2007) | 1 line rotor is long gone. ........ r55470 | neal.norwitz | 2007-05-20 11:43:00 -0700 (Sun, 20 May 2007) | 1 line Update directories/files at the top-level. ........ r55471 | brett.cannon | 2007-05-20 12:05:06 -0700 (Sun, 20 May 2007) | 2 lines Try to remove rgbimg from Windows builds. ........ r55474 | brett.cannon | 2007-05-20 16:17:38 -0700 (Sun, 20 May 2007) | 4 lines Remove the macfs module. This led to the deprecation of macostools.touched(); it completely relied on macfs and is a no-op on OS X according to code comments. ........ r55476 | brett.cannon | 2007-05-20 16:56:18 -0700 (Sun, 20 May 2007) | 3 lines Move imgfile import to the global namespace to trigger an import error ASAP to prevent creation of a test file. ........ r55477 | brett.cannon | 2007-05-20 16:57:38 -0700 (Sun, 20 May 2007) | 3 lines Cause posixfile to raise a DeprecationWarning. Documented as deprecated since Ptyhon 1.5. ........ r55479 | andrew.kuchling | 2007-05-20 17:03:15 -0700 (Sun, 20 May 2007) | 1 line Note removed modules ........ r55481 | martin.v.loewis | 2007-05-20 21:35:47 -0700 (Sun, 20 May 2007) | 2 lines Add Alexandre Vassalotti. ........ r55482 | george.yoshida | 2007-05-20 21:41:21 -0700 (Sun, 20 May 2007) | 4 lines fix against r55474 [Remove the macfs module] Remove "libmacfs.tex" from Makefile.deps and mac/mac.tex. ........ r55487 | raymond.hettinger | 2007-05-21 01:13:35 -0700 (Mon, 21 May 2007) | 1 line Replace assertion with straight error-checking. ........ r55489 | raymond.hettinger | 2007-05-21 09:40:10 -0700 (Mon, 21 May 2007) | 1 line Allow all alphanumeric and underscores in type and field names. ........ r55490 | facundo.batista | 2007-05-21 10:32:32 -0700 (Mon, 21 May 2007) | 5 lines Added timeout support to HTTPSConnection, through the socket.create_connection function. Also added a small test for this, and updated NEWS file. ........ r55495 | georg.brandl | 2007-05-21 13:34:16 -0700 (Mon, 21 May 2007) | 2 lines Patch #1686487: you can now pass any mapping after '**' in function calls. ........ r55502 | neal.norwitz | 2007-05-21 23:03:36 -0700 (Mon, 21 May 2007) | 1 line Document new params to HTTPSConnection ........ r55504 | neal.norwitz | 2007-05-22 00:16:10 -0700 (Tue, 22 May 2007) | 1 line Stop using METH_OLDARGS ........ r55505 | neal.norwitz | 2007-05-22 00:16:44 -0700 (Tue, 22 May 2007) | 1 line Stop using METH_OLDARGS implicitly ........ ................
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if hasattr(attr, '__call__'):
print(attr(*sys.argv[2:]))
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else:
print(repr(attr))
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else:
print("%s: no such attribute" % what)
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sys.exit(2)
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if __name__ == '__main__':
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test()