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# -*- coding: UTF-8 -*-
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""XML externalization support."""
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# "XML is like violence: if it doesn't solve your problem, you aren't
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# using enough of it." -- various
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# importing this module is fairly slow because it has to load several
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from bzrlib.trace import mutter, warning
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from cElementTree import (ElementTree, SubElement, Element,
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XMLTreeBuilder, fromstring, tostring)
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## from warnings import warn
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## warn('using slower ElementTree; consider installing cElementTree')
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from util.elementtree.ElementTree import (ElementTree, SubElement,
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Element, XMLTreeBuilder,
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from bzrlib.errors import BzrError
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class Serializer(object):
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"""Abstract object serialize/deserialize"""
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def write_inventory(self, inv, f):
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"""Write inventory to a file"""
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elt = self._pack_inventory(inv)
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self._write_element(elt, f)
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def write_inventory_to_string(self, inv):
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return tostring(self._pack_inventory(inv)) + '\n'
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def read_inventory_from_string(self, xml_string):
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return self._unpack_inventory(fromstring(xml_string))
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def read_inventory(self, f):
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return self._unpack_inventory(self._read_element(f))
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def write_revision(self, rev, f):
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self._write_element(self._pack_revision(rev), f)
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def write_revision_to_string(self, rev):
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return tostring(self._pack_revision(rev)) + '\n'
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def read_revision(self, f):
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return self._unpack_revision(self._read_element(f))
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def read_revision_from_string(self, xml_string):
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return self._unpack_revision(fromstring(xml_string))
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def _write_element(self, elt, f):
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ElementTree(elt).write(f, 'utf-8')
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def _read_element(self, f):
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return ElementTree().parse(f)