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# Copyright (C) 2005, 2006 Canonical Ltd
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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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from bzrlib.xml_serializer import SubElement, Element, Serializer
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from bzrlib.inventory import ROOT_ID, Inventory, InventoryEntry
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import bzrlib.inventory as inventory
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from bzrlib.revision import Revision
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from bzrlib.errors import BzrError
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class Serializer_v5(Serializer):
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"""Version 5 serializer
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Packs objects into XML and vice versa.
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def _pack_inventory(self, inv):
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"""Convert to XML Element"""
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entries = inv.iter_entries()
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e = Element('inventory',
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path, root = entries.next()
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if root.file_id not in (None, ROOT_ID):
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e.set('file_id', root.file_id)
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if inv.revision_id is not None:
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e.set('revision_id', inv.revision_id)
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for path, ie in entries:
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e.append(self._pack_entry(ie))
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def _pack_entry(self, ie):
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"""Convert InventoryEntry to XML element"""
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# TODO: should just be a plain assertion
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if not InventoryEntry.versionable_kind(ie.kind):
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raise AssertionError('unsupported entry kind %s' % ie.kind)
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e.set('name', ie.name)
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e.set('file_id', ie.file_id)
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if ie.text_size != None:
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e.set('text_size', '%d' % ie.text_size)
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for f in ['text_sha1', 'revision', 'symlink_target']:
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e.set('executable', 'yes')
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# to be conservative, we don't externalize the root pointers
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# for now, leaving them as null in the xml form. in a future
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# version it will be implied by nested elements.
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if ie.parent_id != ROOT_ID:
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assert isinstance(ie.parent_id, basestring)
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e.set('parent_id', ie.parent_id)
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def _pack_revision(self, rev):
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"""Revision object -> xml tree"""
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root = Element('revision',
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committer = rev.committer,
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timestamp = '%.9f' % rev.timestamp,
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revision_id = rev.revision_id,
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inventory_sha1 = rev.inventory_sha1,
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root.set('timezone', str(rev.timezone))
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msg = SubElement(root, 'message')
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msg.text = rev.message
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pelts = SubElement(root, 'parents')
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pelts.tail = pelts.text = '\n'
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for parent_id in rev.parent_ids:
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assert isinstance(parent_id, basestring)
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p = SubElement(pelts, 'revision_ref')
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p.set('revision_id', parent_id)
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self._pack_revision_properties(rev, root)
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def _pack_revision_properties(self, rev, under_element):
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top_elt = SubElement(under_element, 'properties')
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for prop_name, prop_value in sorted(rev.properties.items()):
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assert isinstance(prop_name, basestring)
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assert isinstance(prop_value, basestring)
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prop_elt = SubElement(top_elt, 'property')
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prop_elt.set('name', prop_name)
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prop_elt.text = prop_value
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def _unpack_inventory(self, elt):
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"""Construct from XML Element
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assert elt.tag == 'inventory'
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root_id = elt.get('file_id') or ROOT_ID
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format = elt.get('format')
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if format is not None:
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raise BzrError("invalid format version %r on inventory"
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revision_id = elt.get('revision_id')
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inv = Inventory(root_id, revision_id=revision_id)
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ie = self._unpack_entry(e)
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if ie.parent_id == ROOT_ID:
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ie.parent_id = root_id
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def _unpack_entry(self, elt):
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if not InventoryEntry.versionable_kind(kind):
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raise AssertionError('unsupported entry kind %s' % kind)
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parent_id = elt.get('parent_id')
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if parent_id == None:
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if kind == 'directory':
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ie = inventory.InventoryDirectory(elt.get('file_id'),
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ie = inventory.InventoryFile(elt.get('file_id'),
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ie.text_sha1 = elt.get('text_sha1')
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if elt.get('executable') == 'yes':
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v = elt.get('text_size')
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ie.text_size = v and int(v)
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elif kind == 'symlink':
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ie = inventory.InventoryLink(elt.get('file_id'),
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ie.symlink_target = elt.get('symlink_target')
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raise BzrError("unknown kind %r" % kind)
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ie.revision = elt.get('revision')
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def _unpack_revision(self, elt):
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"""XML Element -> Revision object"""
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assert elt.tag == 'revision'
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format = elt.get('format')
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if format is not None:
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raise BzrError("invalid format version %r on inventory"
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rev = Revision(committer = elt.get('committer'),
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timestamp = float(elt.get('timestamp')),
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revision_id = elt.get('revision_id'),
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inventory_sha1 = elt.get('inventory_sha1')
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parents = elt.find('parents') or []
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assert p.tag == 'revision_ref', \
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"bad parent node tag %r" % p.tag
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rev.parent_ids.append(p.get('revision_id'))
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self._unpack_revision_properties(elt, rev)
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v = elt.get('timezone')
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rev.timezone = v and int(v)
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rev.message = elt.findtext('message') # text of <message>
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def _unpack_revision_properties(self, elt, rev):
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"""Unpack properties onto a revision."""
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props_elt = elt.find('properties')
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assert len(rev.properties) == 0
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for prop_elt in props_elt:
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assert prop_elt.tag == 'property', \
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"bad tag under properties list: %r" % prop_elt.tag
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name = prop_elt.get('name')
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value = prop_elt.text
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assert name not in rev.properties, \
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"repeated property %r" % name
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rev.properties[name] = value
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serializer_v5 = Serializer_v5()
added
removed
bzrlib/xml5.py
