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	wrappedextraprepare = util.nullcontextmanager()			wrappedextraprepare = util.nullcontextmanager()
	opts_narrow = opts['narrow']			opts_narrow = opts['narrow']
	narrowspecfile = opts['narrowspec']			narrowspecfile = opts['narrowspec']

	if narrowspecfile:			if narrowspecfile:
	filepath = os.path.join(pycompat.getcwd(), narrowspecfile)			filepath = os.path.join(pycompat.getcwd(), narrowspecfile)
	ui.status(_("reading narrowspec from '%s'\n") % filepath)			ui.status(_("reading narrowspec from '%s'\n") % filepath)
	try:			try:
	fp = open(filepath, 'rb')			fdata = util.readfile(filepath)
	except IOError:			except IOError as inst:
	raise error.Abort(_("file '%s' not found") % filepath)			raise error.Abort(_("cannot read narrowspecs from '%s': %s") %
				(filepath, encoding.strtolocal(inst.strerror)))

	includes, excludes, profiles = sparse.parseconfig(ui, fp.read(),			includes, excludes, profiles = sparse.parseconfig(ui, fdata, 'narrow')
	'narrow')
	if profiles:			if profiles:
	raise error.Abort(_("cannot specify other files using '%include' in"			raise error.Abort(_("cannot specify other files using '%include' in"
	" narrowspec"))			" narrowspec"))

	# narrowspec is passed so we should assume that user wants narrow clone			# narrowspec is passed so we should assume that user wants narrow clone
	opts_narrow = True			opts_narrow = True
	opts['include'].extend(includes)			opts['include'].extend(includes)
	opts['exclude'].extend(excludes)			opts['exclude'].extend(excludes)

narrow: use util.readfile() and improve error message using --narrowspecClosedPublic