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  • Committer: John Arbash Meinel
  • Date: 2005-07-11 22:24:03 UTC
  • mto: (1185.11.1)
  • mto: This revision was merged to the branch mainline in revision 1396.
  • Revision ID: john@arbash-meinel.com-20050711222403-5dc86e254b69f7ab
Remote functionality work.
Added lock_read/write() to Transport.
Turns out that both urllib2 and urlgrabber don't let you
seek on files that are returned, and GzipFile wants to
seek on the file when it is read. So instead,
we check, and wrap in a StringIO when required.

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bzrlib/local_transport.py
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            relpath = [relpath]
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        return os.path.join(self.base, *relpath)
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    def relpath(self, abspath):
 
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        """Return the local path portion from a given absolute path.
 
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        """
 
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        from branch import _relpath
 
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        return _relpath(self.base, abspath)
 
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    def has(self, relpath):
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        return os.access(self.abspath(relpath), os.F_OK)
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        """
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        return os.stat(self.abspath(relpath))
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    def lock_read(self, relpath):
 
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        """Lock the given file for shared (read) access.
 
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        :return: A lock object, which should be passed to Transport.unlock()
 
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        """
 
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        from bzrlib.lock import ReadLock
 
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        return ReadLock(self.abspath(relpath))
 
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    def lock_write(self, relpath):
 
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        """Lock the given file for exclusive (write) access.
 
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        WARNING: many transports do not support this, so trying avoid using it
 
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        :return: A lock object, which should be passed to Transport.unlock()
 
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        """
 
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        from bzrlib.lock import WriteLock
 
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        return WriteLock(self.abspath(relpath))
 
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# If nothing else matches, try the LocalTransport
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protocol_handlers[None] = LocalTransport
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