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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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"""Conversion between refs and Bazaar revision pointers."""
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from dulwich.repo import (
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def extract_tags(refs):
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"""Extract the tags from a refs dictionary.
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:param refs: Refs to extract the tags from.
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:return: Dictionary mapping tag names to SHA1s.
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for k,v in refs.iteritems():
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if k.startswith("refs/tags/") and not k.endswith("^{}"):
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v = refs.get(k+"^{}", v)
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ret[k[len("refs/tags/"):]] = v
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def branch_name_to_ref(name, default=None):
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"""Map a branch name to a ref.
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:param name: Branch name
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if not name.startswith("refs/"):
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return "refs/heads/%s" % name
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def tag_name_to_ref(name):
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"""Map a tag name to a ref.
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return "refs/tags/%s" % name
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def ref_to_branch_name(ref):
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"""Map a ref to a branch name
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:return: A branch name
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if ref in (None, "HEAD"):
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if ref.startswith("refs/heads/"):
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return ref[len("refs/heads/"):]
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raise ValueError("unable to map ref %s back to branch name" % ref)
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def ref_to_tag_name(ref):
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if ref.startswith("refs/tags/"):
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return ref[len('refs/tags/'):]
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raise ValueError("unable to map ref %s back to branch name" % ref)
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class BazaarRefsContainer(RefsContainer):
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def __init__(self, dir, object_store):
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self.object_store = object_store
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def set_symbolic_ref(self, name, other):
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pass # FIXME: Switch default branch
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raise NotImplementedError(
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"Symbolic references not supported for anything other than "
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def _get_revid_by_tag_name(self, tag_name):
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for branch in self.dir.list_branches():
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# FIXME: This is ambiguous!
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return branch.tags.lookup_tag(tag_name)
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except errors.NoSuchTag:
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def _get_revid_by_branch_name(self, branch_name):
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branch = self.dir.open_branch(branch_name)
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except errors.NoColocatedBranchSupport:
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if branch_name in ("HEAD", "master"):
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branch = self.dir.open_branch()
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return branch.last_revision()
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def read_loose_ref(self, ref):
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branch_name = ref_to_branch_name(ref)
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tag_name = ref_to_tag_name(ref)
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revid = self._get_revid_by_tag_name(tag_name)
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revid = self._get_revid_by_branch_name(branch_name)
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return self.object_store._lookup_revision_sha1(revid)
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for branch in self.dir.list_branches():
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repo = branch.repository
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if repo.has_revision(branch.last_revision()):
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ref = branch_name_to_ref(branch.name, "refs/heads/master")
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if branch.name is None:
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for tag_name, revid in branch.tags.get_tag_dict().iteritems():
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if repo.has_revision(revid):
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keys.add(tag_name_to_ref(tag_name))
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def __delitem__(self, ref):
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branch_name = ref_to_branch_name(ref)
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return # FIXME: Cope with tags!
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self.dir.destroy_branch(branch_name)
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def __setitem__(self, ref, sha):
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branch_name = ref_to_branch_name(ref)
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# FIXME: Cope with tags!
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target_branch = self.repo_dir.open_branch(branch_name)
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except errors.NotBranchError:
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target_branch = self.repo.create_branch(branch_name)
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rev_id = self.mapping.revision_id_foreign_to_bzr(sha)
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target_branch.lock_write()
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target_branch.generate_revision_history(rev_id)
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target_branch.unlock()
added
removed
refs.py
