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			481 lines
		
	
	
	
		
			10 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable file
		
	
	
	
	
			
		
		
	
	
			481 lines
		
	
	
	
		
			10 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable file
		
	
	
	
	
#! /usr/local/bin/python
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"""Remote CVS -- command line interface"""
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# XXX To do:
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#
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# Bugs:
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# - if the remote file is deleted, "rcvs update" will fail
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#
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# Functionality:
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# - cvs rm
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# - descend into directories (alraedy done for update)
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# - conflict resolution
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# - other relevant commands?
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# - branches
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#
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# - Finesses:
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# - retain file mode's x bits
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# - complain when "nothing known about filename"
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# - edit log message the way CVS lets you edit it
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# - cvs diff -rREVA -rREVB
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# - send mail the way CVS sends it
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#
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# Performance:
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# - cache remote checksums (for every revision ever seen!)
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# - translate symbolic revisions to numeric revisions
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#
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# Reliability:
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# - remote locking
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#
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# Security:
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# - Authenticated RPC?
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from cvslib import CVS, File
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import md5
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import os
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import string
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import sys
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from cmdfw import CommandFrameWork
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DEF_LOCAL = 1				# Default -l
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class MyFile(File):
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	def action(self):
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		"""Return a code indicating the update status of this file.
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		The possible return values are:
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		'=' -- everything's fine
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		'0' -- file doesn't exist anywhere
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		'?' -- exists locally only
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		'A' -- new locally
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		'R' -- deleted locally
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		'U' -- changed remotely, no changes locally
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		       (includes new remotely or deleted remotely)
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		'M' -- changed locally, no changes remotely
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		'C' -- conflict: changed locally as well as remotely
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		       (includes cases where the file has been added
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		       or removed locally and remotely)
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		'D' -- deleted remotely
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		'N' -- new remotely
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		'r' -- get rid of entry
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		'c' -- create entry
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		'u' -- update entry
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		(and probably others :-)
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		"""
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		if not self.lseen:
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			self.getlocal()
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		if not self.rseen:
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			self.getremote()
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		if not self.eseen:
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			if not self.lsum:
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				if not self.rsum: return '0' # Never heard of
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				else:
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					return 'N' # New remotely
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			else: # self.lsum
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				if not self.rsum: return '?' # Local only
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				# Local and remote, but no entry
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				if self.lsum == self.rsum:
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					return 'c' # Restore entry only
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				else: return 'C' # Real conflict
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		else: # self.eseen
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			if not self.lsum:
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				if self.edeleted:
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					if self.rsum: return 'R' # Removed
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					else: return 'r' # Get rid of entry
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				else: # not self.edeleted
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					if self.rsum:
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						print "warning:",
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						print self.file,
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						print "was lost"
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						return 'U'
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					else: return 'r' # Get rid of entry
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			else: # self.lsum
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				if not self.rsum:
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					if self.enew: return 'A' # New locally
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					else: return 'D' # Deleted remotely
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				else: # self.rsum
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					if self.enew:
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						if self.lsum == self.rsum:
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							return 'u'
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						else:
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							return 'C'
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					if self.lsum == self.esum:
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						if self.esum == self.rsum:
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							return '='
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						else:
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							return 'U'
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					elif self.esum == self.rsum:
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						return 'M'
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					elif self.lsum == self.rsum:
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						return 'u'
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					else:
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						return 'C'
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	def update(self):
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		code = self.action()
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		if code == '=': return
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		print code, self.file
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		if code in ('U', 'N'):
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			self.get()
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		elif code == 'C':
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			print "%s: conflict resolution not yet implemented" % \
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			      self.file
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		elif code == 'D':
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			remove(self.file)
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			self.eseen = 0
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		elif code == 'r':
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			self.eseen = 0
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		elif code in ('c', 'u'):
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			self.eseen = 1
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			self.erev = self.rrev
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			self.enew = 0
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			self.edeleted = 0
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			self.esum = self.rsum
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			self.emtime, self.ectime = os.stat(self.file)[-2:]
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			self.extra = ''
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	def commit(self, message = ""):
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		code = self.action()
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		if code in ('A', 'M'):
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			self.put(message)
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			return 1
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		elif code == 'R':
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			print "%s: committing removes not yet implemented" % \
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			      self.file
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		elif code == 'C':
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			print "%s: conflict resolution not yet implemented" % \
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			      self.file
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	def diff(self, opts = []):
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		self.action()		# To update lseen, rseen
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		flags = ''
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		rev = self.rrev
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		# XXX should support two rev options too!
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		for o, a in opts:
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			if o == '-r':
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				rev = a
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			else:
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				flags = flags + ' ' + o + a
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		if rev == self.rrev and self.lsum == self.rsum:
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			return
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		flags = flags[1:]
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		fn = self.file
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		data = self.proxy.get((fn, rev))
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		sum = md5.new(data).digest()
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		if self.lsum == sum:
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			return
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		import tempfile
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		tfn = tempfile.mktemp()
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		try:
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			tf = open(tfn, 'w')
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			tf.write(data)
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			tf.close()
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			print 'diff %s -r%s %s' % (flags, rev, fn)
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			sts = os.system('diff %s %s %s' % (flags, tfn, fn))
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			if sts:
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				print '='*70
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		finally:
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			remove(tfn)
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	def commitcheck(self):
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		return self.action() != 'C'
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	def put(self, message = ""):
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		print "Checking in", self.file, "..."
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		data = open(self.file).read()
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		if not self.enew:
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			self.proxy.lock(self.file)
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		messages = self.proxy.put(self.file, data, message)
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		if messages:
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			print messages
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		self.setentry(self.proxy.head(self.file), self.lsum)
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	def get(self):
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		data = self.proxy.get(self.file)
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		f = open(self.file, 'w')
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		f.write(data)
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		f.close()
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		self.setentry(self.rrev, self.rsum)
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	def log(self, otherflags):
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		print self.proxy.log(self.file, otherflags)
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	def add(self):
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		self.eseen = 0		# While we're hacking...
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		self.esum = self.lsum
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		self.emtime, self.ectime = 0, 0
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		self.erev = ''
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		self.enew = 1
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		self.edeleted = 0
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		self.eseen = 1		# Done
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		self.extra = ''
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	def setentry(self, erev, esum):
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		self.eseen = 0		# While we're hacking...
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		self.esum = esum
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		self.emtime, self.ectime = os.stat(self.file)[-2:]
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		self.erev = erev
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		self.enew = 0
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		self.edeleted = 0
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		self.eseen = 1		# Done
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		self.extra = ''
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SENDMAIL = "/usr/lib/sendmail -t"
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MAILFORM = """To: %s
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Subject: CVS changes: %s
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...Message from rcvs...
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Committed files:
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	%s
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Log message:
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	%s
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"""
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class RCVS(CVS):
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	FileClass = MyFile
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	def __init__(self):
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		CVS.__init__(self)
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	def update(self, files):
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		for e in self.whichentries(files, 1):
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			e.update()
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	def commit(self, files, message = ""):
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		list = self.whichentries(files)
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		if not list: return
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		ok = 1
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		for e in list:
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			if not e.commitcheck():
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				ok = 0
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		if not ok:
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			print "correct above errors first"
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			return
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		if not message:
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			message = raw_input("One-liner: ")
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		committed = []
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		for e in list:
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			if e.commit(message):
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				committed.append(e.file)
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		self.mailinfo(committed, message)
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	def mailinfo(self, files, message = ""):
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		towhom = "sjoerd@cwi.nl, jack@cwi.nl" # XXX
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		mailtext = MAILFORM % (towhom, string.join(files),
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					string.join(files), message)
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		print '-'*70
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		print mailtext
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		print '-'*70
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		ok = raw_input("OK to mail to %s? " % towhom)
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		if string.lower(string.strip(ok)) in ('y', 'ye', 'yes'):
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			p = os.popen(SENDMAIL, "w")
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			p.write(mailtext)
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			sts = p.close()
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			if sts:
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				print "Sendmail exit status %s" % str(sts)
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			else:
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				print "Mail sent."
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		else:
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			print "No mail sent."
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	def report(self, files):
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		for e in self.whichentries(files):
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			e.report()
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	def diff(self, files, opts):
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		for e in self.whichentries(files):
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			e.diff(opts)
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	def add(self, files):
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		if not files:
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			raise RuntimeError, "'cvs add' needs at least one file"
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		list = []
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		for e in self.whichentries(files, 1):
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			e.add()
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	def rm(self, files):
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		if not files:
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			raise RuntimeError, "'cvs rm' needs at least one file"
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		raise RuntimeError, "'cvs rm' not yet imlemented"
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	def log(self, files, opts):
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		flags = ''
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		for o, a in opts:
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			flags = flags + ' ' + o + a
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		for e in self.whichentries(files):
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			e.log(flags)
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	def whichentries(self, files, localfilestoo = 0):
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		if files:
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			list = []
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			for file in files:
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				if self.entries.has_key(file):
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					e = self.entries[file]
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				else:
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					e = self.FileClass(file)
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					self.entries[file] = e
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				list.append(e)
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		else:
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			list = self.entries.values()
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			for file in self.proxy.listfiles():
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				if self.entries.has_key(file):
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					continue
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				e = self.FileClass(file)
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				self.entries[file] = e
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				list.append(e)
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			if localfilestoo:
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				for file in os.listdir(os.curdir):
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					if not self.entries.has_key(file) \
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					   and not self.ignored(file):
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						e = self.FileClass(file)
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						self.entries[file] = e
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						list.append(e)
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			list.sort()
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		if self.proxy:
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			for e in list:
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				if e.proxy is None:
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					e.proxy = self.proxy
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		return list
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class rcvs(CommandFrameWork):
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	GlobalFlags = 'd:h:p:qvL'
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	UsageMessage = \
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"usage: rcvs [-d directory] [-h host] [-p port] [-q] [-v] [subcommand arg ...]"
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	PostUsageMessage = \
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		"If no subcommand is given, the status of all files is listed"
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	def __init__(self):
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		"""Constructor."""
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		CommandFrameWork.__init__(self)
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		self.proxy = None
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		self.cvs = RCVS()
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	def close(self):
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		if self.proxy:
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			self.proxy._close()
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		self.proxy = None
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	def recurse(self):
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		self.close()
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		names = os.listdir(os.curdir)
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		for name in names:
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			if name == os.curdir or name == os.pardir:
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				continue
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			if name == "CVS":
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				continue
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			if not os.path.isdir(name):
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				continue
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			if os.path.islink(name):
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				continue
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			print "--- entering subdirectory", name, "---"
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			os.chdir(name)
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			try:
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				if os.path.isdir("CVS"):
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					self.__class__().run()
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				else:
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					self.recurse()
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			finally:
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				os.chdir(os.pardir)
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				print "--- left subdirectory", name, "---"
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	def options(self, opts):
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		self.opts = opts
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	def ready(self):
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		import rcsclient
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		self.proxy = rcsclient.openrcsclient(self.opts)
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		self.cvs.setproxy(self.proxy)
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		self.cvs.getentries()
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	def default(self):
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		self.cvs.report([])
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	def do_report(self, opts, files):
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		self.cvs.report(files)
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	def do_update(self, opts, files):
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		"""update [-l] [-R] [file] ..."""
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		local = DEF_LOCAL
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		for o, a in opts:
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			if o == '-l': local = 1
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			if o == '-R': local = 0
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		self.cvs.update(files)
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		self.cvs.putentries()
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		if not local and not files:
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			self.recurse()
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	flags_update = '-lR'
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	do_up = do_update
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	flags_up = flags_update
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	def do_commit(self, opts, files):
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		"""commit [-m message] [file] ..."""
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		message = ""
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		for o, a in opts:
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			if o == '-m': message = a
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		self.cvs.commit(files, message)
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		self.cvs.putentries()
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	flags_commit = 'm:'
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	do_com = do_commit
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	flags_com = flags_commit
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	def do_diff(self, opts, files):
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		"""diff [difflags] [file] ..."""
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		self.cvs.diff(files, opts)
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	flags_diff = 'cbitwcefhnlr:sD:S:'
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	do_dif = do_diff
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	flags_dif = flags_diff
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	def do_add(self, opts, files):
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		"""add file ..."""
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		if not files:
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			print "'rcvs add' requires at least one file"
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			return
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		self.cvs.add(files)
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		self.cvs.putentries()
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	def do_remove(self, opts, files):
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		"""remove file ..."""
 | 
						|
		if not files:
 | 
						|
			print "'rcvs remove' requires at least one file"
 | 
						|
			return
 | 
						|
		self.cvs.remove(files)
 | 
						|
		self.cvs.putentries()
 | 
						|
	do_rm = do_remove
 | 
						|
 | 
						|
	def do_log(self, opts, files):
 | 
						|
		"""log [rlog-options] [file] ..."""
 | 
						|
		self.cvs.log(files, opts)
 | 
						|
	flags_log = 'bhLNRtd:s:V:r:'
 | 
						|
 | 
						|
 | 
						|
def remove(fn):
 | 
						|
	try:
 | 
						|
		os.unlink(fn)
 | 
						|
	except os.error:
 | 
						|
		pass
 | 
						|
 | 
						|
 | 
						|
def main():
 | 
						|
	r = rcvs()
 | 
						|
	try:
 | 
						|
		r.run()
 | 
						|
	finally:
 | 
						|
		r.close()
 | 
						|
 | 
						|
 | 
						|
if __name__ == "__main__":
 | 
						|
	main()
 |