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# Copyright (C) 2010 Jelmer Vernooij <jelmer@samba.org>
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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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"""Roundtripping support."""
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from cStringIO import StringIO
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class BzrGitRevisionMetadata(object):
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"""Metadata for a Bazaar revision roundtripped into Git.
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:ivar revision_id: Revision id, as string
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:ivar properties: Revision properties, as dictionary
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:ivar explicit_parent_ids: Parent ids (needed if there are ghosts)
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explicit_parent_ids = None
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def __nonzero__(self):
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return bool(self.revision_id or self.properties)
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def parse_roundtripping_metadata(text):
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"""Parse Bazaar roundtripping metadata."""
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ret = BzrGitRevisionMetadata()
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for l in f.readlines():
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(key, value) = l.split(":", 1)
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if key == "revision-id":
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ret.revision_id = value.strip()
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elif key == "parent-ids":
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ret.explicit_parent_ids = tuple(value.strip().split(" "))
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elif key.startswith("property-"):
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ret.properties[key[len("property-"):]] = value[1:].rstrip("\n")
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def generate_roundtripping_metadata(metadata, encoding):
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"""Serialize the roundtripping metadata.
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:param metadata: A `BzrGitRevisionMetadata` instance
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:return: String with revision metadata
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if metadata.revision_id:
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lines.append("revision-id: %s\n" % metadata.revision_id)
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if metadata.explicit_parent_ids:
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lines.append("parent-ids: %s\n" % " ".join(metadata.explicit_parent_ids))
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for key in sorted(metadata.properties.keys()):
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lines.append("property-%s: %s\n" % (key.encode(encoding), metadata.properties[key].encode(encoding)))
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def extract_bzr_metadata(message):
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"""Extract Bazaar metadata from a commit message.
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:param message: Commit message to extract from
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:return: Tuple with original commit message and metadata object
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split = message.split("\n--BZR--\n", 1)
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return split[0], parse_roundtripping_metadata(split[1])
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def inject_bzr_metadata(message, metadata, encoding):
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rt_data = generate_roundtripping_metadata(metadata, encoding)
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assert type(rt_data) == str
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return message + "\n--BZR--\n" + rt_data
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def serialize_fileid_map(file_ids):
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for path in sorted(file_ids.keys()):
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lines.append("%s\0%s\n" % (path, file_ids[path]))
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def deserialize_fileid_map(file):
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lines = f.readlines()
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(path, file_id) = l.rstrip("\n").split("\0")
added
removed
roundtrip.py
