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# Copyright (C) 2005 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
from __future__ import absolute_import
from bzrlib.errors import BzrError
from bzrlib.inventory import Inventory
START_MARK = "# bzr inventory format 3\n"
END_MARK = "# end of inventory\n"
def escape(s):
"""Very simple URL-like escaping.
(Why not just use backslashes? Because then we couldn't parse
lines just by splitting on spaces.)"""
return (s.replace('\\', r'\x5c')
.replace(' ', r'\x20')
.replace('\t', r'\x09')
.replace('\n', r'\x0a'))
def unescape(s):
if s.find(' ') != -1:
raise AssertionError()
s = (s.replace(r'\x20', ' ')
.replace(r'\x09', '\t')
.replace(r'\x0a', '\n')
.replace(r'\x5c', '\\'))
# TODO: What if there's anything else?
return s
def write_text_inventory(inv, outf):
"""Write out inv in a simple trad-unix text format."""
outf.write(START_MARK)
for path, ie in inv.iter_entries():
if inv.is_root(ie.file_id):
continue
outf.write(ie.file_id + ' ')
outf.write(escape(ie.name) + ' ')
outf.write(ie.kind + ' ')
outf.write(ie.parent_id + ' ')
if ie.kind == 'file':
outf.write(ie.text_id)
outf.write(' ' + ie.text_sha1)
outf.write(' ' + str(ie.text_size))
outf.write("\n")
outf.write(END_MARK)
def read_text_inventory(tf):
"""Return an inventory read in from tf"""
if tf.readline() != START_MARK:
raise BzrError("missing start mark")
inv = Inventory()
for l in tf:
fields = l.split(' ')
if fields[0] == '#':
break
ie = {'file_id': fields[0],
'name': unescape(fields[1]),
'kind': fields[2],
'parent_id': fields[3]}
##inv.add(ie)
if l != END_MARK:
raise BzrError("missing end mark")
return inv
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