/brz/remove-bazaar

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Try to import nothing other than __init__ when not opening git repositories.

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repository.py
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# Copyright (C) 2007 Canonical Ltd
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# Copyright (C) 2008-2009 Jelmer Vernooij <jelmer@samba.org>
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#
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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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"""An adapter between a Git Repository and a Bazaar Branch"""
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import os
 
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import time
 
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import bzrlib
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from bzrlib import (
 
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    deprecated_graph,
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    errors,
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    graph,
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    inventory,
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    repository,
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    revision,
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    revisiontree,
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    ui,
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    urlutils,
 
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    versionedfile,
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    )
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from bzrlib.foreign import (
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    ForeignRepository,
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    )
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from bzrlib.trace import (
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    mutter,
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    )
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from bzrlib.transport import (
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    get_transport,
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    )
 
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        ForeignRepository,
 
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        )
 
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from bzrlib.trace import mutter
 
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from bzrlib.transport import get_transport
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from bzrlib.plugins.git.foreign import (
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    versionedfiles,
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    )
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from bzrlib.plugins.git.mapping import (
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    default_mapping,
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    inventory_to_tree_and_blobs,
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    mapping_registry,
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    revision_to_commit,
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    )
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from bzrlib.plugins.git.versionedfiles import (
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    GitTexts,
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    )
 
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from bzrlib.plugins.git.mapping import default_mapping, mapping_registry
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import dulwich as git
56
 
import os
57
 
import time
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47
 
59
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60
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class GitTags(object):
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    _serializer = None
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    def __init__(self, gitdir, lockfiles):
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        ForeignRepository.__init__(self, GitRepositoryFormat(), gitdir, 
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            lockfiles)
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        from bzrlib.plugins.git import fetch, push
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        for optimiser in [fetch.InterRemoteGitNonGitRepository, 
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                          fetch.InterLocalGitNonGitRepository,
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                          fetch.InterGitRepository,
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                          push.InterToGitRepository]:
82
 
            repository.InterRepository.register_optimiser(optimiser)
 
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        ForeignRepository.__init__(self, GitFormat(), gitdir, lockfiles)
 
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        from bzrlib.plugins.git import fetch
 
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        repository.InterRepository.register_optimiser(fetch.InterGitRepository)
 
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        repository.InterRepository.register_optimiser(fetch.InterGitNonGitRepository)
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68
 
84
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    def is_shared(self):
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        return True
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84
 
100
85
 
101
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class LocalGitRepository(GitRepository):
102
 
    """Git repository on the file system."""
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87
 
104
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    def __init__(self, gitdir, lockfiles):
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        # FIXME: This also caches negatives. Need to be more careful 
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        self.texts = None
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        self.signatures = versionedfiles.VirtualSignatureTexts(self)
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        self.revisions = versionedfiles.VirtualRevisionTexts(self)
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        self.inventories = versionedfiles.VirtualInventoryTexts(self)
115
 
        self.texts = GitTexts(self)
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        self.tags = GitTags(self._git.get_tags())
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118
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    def all_revision_ids(self):
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        ret = set([revision.NULL_REVISION])
120
 
        heads = self._git.heads()
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        if heads == {}:
 
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        if self._git.heads() == []:
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            return ret
123
 
        bzr_heads = [self.get_mapping().revision_id_foreign_to_bzr(h) for h in heads.itervalues()]
 
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        bzr_heads = [self.get_mapping().revision_id_foreign_to_bzr(h) for h in self._git.heads()]
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        ret = set(bzr_heads)
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        graph = self.get_graph()
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        for rev, parents in graph.iter_ancestry(bzr_heads):
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        """See Repository.get_ancestry().
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        """
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        if revision_id is None:
159
 
            return [None, revision.NULL_REVISION] + self._all_revision_ids()
 
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            return self._all_revision_ids()
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        assert isinstance(revision_id, str)
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        ancestry = []
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        graph = self.get_graph()
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        for rev, parents in graph.iter_ancestry([revision_id]):
 
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            if rev == revision.NULL_REVISION:
 
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                rev = None
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            ancestry.append(rev)
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        ancestry.reverse()
166
 
        return [None] + ancestry
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168
 
    def import_revision_gist(self, source, revid, parent_lookup):
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        """Import the gist of a revision into this Git repository.
170
 
 
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        """
172
 
        objects = []
173
 
        rev = source.get_revision(revid)
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        for sha, object, path in inventory_to_tree_and_blobs(source, None, revid):
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            if path == "":
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                tree_sha = sha
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            objects.append((object, path))
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        commit = revision_to_commit(rev, tree_sha, parent_lookup)
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        objects.append((commit, None))
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        self._git.object_store.add_objects(objects)
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        return commit.sha().hexdigest()
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183
 
    def dfetch(self, source, stop_revision):
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        """Import the gist of the ancestry of a particular revision."""
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        if stop_revision is None:
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            raise NotImplementedError
187
 
        revidmap = {}
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        gitidmap = {}
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        def parent_lookup(revid):
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            try:
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                return gitidmap[revid]
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            except KeyError:
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                return self.lookup_git_revid(revid)[0]
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        todo = []
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        source.lock_write()
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        try:
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            graph = source.get_graph()
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            ancestry = [x for x in source.get_ancestry(stop_revision) if x is not None]
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            for revid in graph.iter_topo_order(ancestry):
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                if not self.has_revision(revid):
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                    todo.append(revid)
202
 
            pb = ui.ui_factory.nested_progress_bar()
203
 
            try:
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                for i, revid in enumerate(todo):
205
 
                    pb.update("pushing revisions", i, len(todo))
206
 
                    git_commit = self.import_revision_gist(source, revid,
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                        parent_lookup)
208
 
                    gitidmap[revid] = git_commit
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                    git_revid = self.get_mapping().revision_id_foreign_to_bzr(
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                        git_commit)
211
 
                    revidmap[revid] = git_revid
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            finally:
213
 
                pb.finished()
214
 
            source.fetch(self, revision_id=revidmap[stop_revision])
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        finally:
216
 
            source.unlock()
217
 
        return revidmap
 
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        return ancestry
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150
 
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    def get_signature_text(self, revision_id):
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        raise errors.NoSuchRevision(self, revision_id)
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    def revision_tree(self, revision_id):
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        revision_id = revision.ensure_null(revision_id)
 
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        if revision_id == revision.NULL_REVISION:
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            inv = inventory.Inventory(root_id=None)
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            inv.revision_id = revision_id
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            return revisiontree.RevisionTree(self, inv, revision_id)
 
205
 
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        return GitRevisionTree(self, revision_id)
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207
 
274
208
    def get_inventory(self, revision_id):
278
212
    def set_make_working_trees(self, trees):
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        pass
280
214
 
281
 
    def fetch_objects(self, determine_wants, graph_walker, resolve_ext_ref,
282
 
        progress=None):
 
215
    def fetch_objects(self, determine_wants, graph_walker, progress=None):
283
216
        return self._git.fetch_objects(determine_wants, graph_walker, progress)
284
217
 
285
218
 
287
220
 
288
221
    def __init__(self, repository, revision_id):
289
222
        self._repository = repository
290
 
        self._revision_id = revision_id
 
223
        self.revision_id = revision_id
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        assert isinstance(revision_id, str)
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        git_id, self.mapping = repository.lookup_git_revid(revision_id)
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        try:
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        self._build_inventory(self.tree, self._inventory.root, "")
301
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302
235
    def get_revision_id(self):
303
 
        return self._revision_id
 
236
        return self.revision_id
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237
 
305
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    def get_file_text(self, file_id):
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        entry = self._inventory[file_id]
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                    child_ie.text_sha1 = osutils.sha_string(b.data)
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                elif file_kind == 2:
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                    child_ie = inventory.InventoryLink(file_id, basename, ie.file_id)
331
 
                    child_ie.symlink_target = b.data
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                    child_ie.text_sha1 = osutils.sha_string("")
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                else:
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                    raise AssertionError(
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                    "Unknown blob kind, perms=%r." % (mode,))
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            fs_mode = mode & 0777
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            child_ie.executable = bool(fs_mode & 0111)
343
 
            # TODO: This should be set to the revision id in which 
344
 
            # child_ie was last changed instead.
345
 
            child_ie.revision = self._revision_id
 
275
            child_ie.revision = self.revision_id
346
276
            self._inventory.add(child_ie)
347
277
            if entry_kind == 0:
348
278
                self._build_inventory(hexsha, child_ie, child_path)
349
279
 
350
280
 
351
 
class GitRepositoryFormat(repository.RepositoryFormat):
 
281
class GitFormat(object):
352
282
 
353
283
    supports_tree_reference = False
354
284
    rich_root_data = True