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  • Committer: mbp at sourcefrog
  • Date: 2005-03-09 04:51:05 UTC
  • Revision ID: mbp@sourcefrog.net-20050309045105-d02cd410a115da2c
import all docs from arch

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bzrlib/revision.py
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# (C) 2005 Canonical
 
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#! /usr/bin/env python
 
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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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from xml import XMLMixin
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try:
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    from cElementTree import Element, ElementTree, SubElement
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except ImportError:
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    from elementtree.ElementTree import Element, ElementTree, SubElement
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from errors import BzrError
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from ElementTree import Element, ElementTree, SubElement
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class Revision(XMLMixin):
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    """Single revision on a branch.
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    written out.  This is not stored because you cannot write the hash
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    into the file it describes.
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    TODO: Perhaps make predecessor be a child element, not an attribute?
 
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    :todo: Perhaps make predecessor be a child element, not an attribute?
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    """
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    def __init__(self, **args):
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        self.inventory_id = None
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        self.revision_id = None
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        self.timestamp = None
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        self.message = None
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        self.timezone = None
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        self.committer = None
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        self.precursor = None
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        self.__dict__.update(args)
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    def __repr__(self):
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        return "<Revision id %s>" % self.revision_id
 
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        if self.revision_id:
 
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            return "<Revision id %s>" % self.revision_id
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    def to_element(self):
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        root = Element('revision',
 
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        root = Element('changeset',
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                       committer = self.committer,
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                       timestamp = '%.9f' % self.timestamp,
 
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                       timestamp = '%f' % self.timestamp,
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                       revision_id = self.revision_id,
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                       inventory_id = self.inventory_id,
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                       timezone = str(self.timezone))
 
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                       inventory_id = self.inventory_id)
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        if self.precursor:
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            root.set('precursor', self.precursor)
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        root.text = '\n'
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        return root
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    def from_element(cls, elt):
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        # <changeset> is deprecated...
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        if elt.tag not in ('revision', 'changeset'):
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            raise BzrError("unexpected tag in revision file: %r" % elt)
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        cs = cls(committer = elt.get('committer'),
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                 timestamp = float(elt.get('timestamp')),
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                 precursor = elt.get('precursor'),
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                 revision_id = elt.get('revision_id'),
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                 inventory_id = elt.get('inventory_id'))
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        v = elt.get('timezone')
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        cs.timezone = v and int(v)
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        cs.message = elt.findtext('message') # text of <message>
 
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    def from_element(cls, root):
 
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        cs = cls(committer = root.get('committer'),
 
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                 timestamp = float(root.get('timestamp')),
 
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                 precursor = root.get('precursor'),
 
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                 revision_id = root.get('revision_id'),
 
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                 inventory_id = root.get('inventory_id'))
 
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        cs.message = root.findtext('message') # text of <message>
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        return cs
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    from_element = classmethod(from_element)