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import bzrlib.weavefile
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from bzrlib.weavefile import read_weave, write_weave_v5
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from bzrlib.weave import Weave
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from bzrlib.atomicfile import AtomicFile
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class WeaveStore(object):
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def filename(self, file_id):
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return self._dir + os.sep + file_id + '.weave'
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def get_weave(self, file_id):
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path = self._dir + os.sep + file_id + '.weave'
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return bzrlib.weavefile.read_weave(file(path, 'rb'))
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return read_weave(file(self.filename(file_id), 'rb'))
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def put_weave(self, file_id, weave):
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"""Write back a modified weave"""
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weave_fn = self.filename(file_id)
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af = AtomicFile(weave_fn)
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write_weave_v5(weave, af)
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def add_text(self, file_id, rev_id, new_lines, parents):
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weave_fn = self.filename(file_id)
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if os.path.exists(weave_fn):
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w = read_weave(file(weave_fn, 'rb'))
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parent_idxs = map(w.lookup, parents)
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w.add(rev_id, parent_idxs, new_lines)
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self.put_weave(file_id, w)