/brz/remove-bazaar

To get this branch, use:
bzr branch http://gegoxaren.bato24.eu/bzr/brz/remove-bazaar

« back to all changes in this revision

Viewing changes to repository.py

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

Show diffs side-by-side

added added

removed removed

Lines of Context:
repository.py
16
16
 
17
17
"""An adapter between a Git Repository and a Bazaar Branch"""
18
18
 
19
 
import git
20
19
import os
21
20
import time
22
21
 
24
23
from bzrlib import (
25
24
    deprecated_graph,
26
25
    errors,
 
26
    graph,
27
27
    inventory,
28
28
    osutils,
29
29
    repository,
32
32
    urlutils,
33
33
    versionedfile,
34
34
    )
 
35
from bzrlib.foreign import (
 
36
        ForeignRepository,
 
37
        )
 
38
from bzrlib.trace import mutter
35
39
from bzrlib.transport import get_transport
36
40
 
37
 
from bzrlib.plugins.git import (
38
 
    cache,
39
 
    ids,
40
 
    versionedfiles
 
41
from bzrlib.plugins.git.foreign import (
 
42
    versionedfiles,
41
43
    )
42
 
 
43
 
 
44
 
class GitRepository(repository.Repository):
 
44
from bzrlib.plugins.git.mapping import default_mapping, mapping_registry
 
45
 
 
46
import dulwich as git
 
47
 
 
48
 
 
49
class GitTags(object):
 
50
 
 
51
    def __init__(self, tags):
 
52
        self._tags = tags
 
53
 
 
54
    def __iter__(self):
 
55
        return iter(self._tags)
 
56
 
 
57
 
 
58
class GitRepository(ForeignRepository):
45
59
    """An adapter to git repositories for bzr."""
46
60
 
47
61
    _serializer = None
48
62
 
49
63
    def __init__(self, gitdir, lockfiles):
 
64
        ForeignRepository.__init__(self, GitFormat(), gitdir, lockfiles)
 
65
        from bzrlib.plugins.git import fetch
 
66
        repository.InterRepository.register_optimiser(fetch.InterGitRepository)
 
67
        repository.InterRepository.register_optimiser(fetch.InterGitNonGitRepository)
 
68
 
 
69
    def is_shared(self):
 
70
        return True
 
71
 
 
72
    def supports_rich_root(self):
 
73
        return True
 
74
 
 
75
    def _warn_if_deprecated(self):
 
76
        # This class isn't deprecated
 
77
        pass
 
78
 
 
79
    def get_mapping(self):
 
80
        return default_mapping
 
81
 
 
82
    def make_working_trees(self):
 
83
        return True
 
84
 
 
85
 
 
86
class LocalGitRepository(GitRepository):
 
87
 
 
88
    def __init__(self, gitdir, lockfiles):
 
89
        # FIXME: This also caches negatives. Need to be more careful 
 
90
        # about this once we start writing to git
 
91
        self._parents_provider = graph.CachingParentsProvider(self)
 
92
        GitRepository.__init__(self, gitdir, lockfiles)
50
93
        self.base = gitdir.root_transport.base
51
 
        self.bzrdir = gitdir
52
 
        self.control_files = lockfiles
53
94
        self._git = gitdir._git
54
 
        cache_dir = cache.create_cache_dir()
55
 
        cachedir_transport = get_transport(cache_dir)
56
 
        cache_file = os.path.join(cache_dir, 'cache-%s' % ids.NAMESPACE)
57
95
        self.texts = None
58
96
        self.signatures = versionedfiles.VirtualSignatureTexts(self)
59
97
        self.revisions = versionedfiles.VirtualRevisionTexts(self)
60
 
        self._format = GitFormat()
61
 
        self._fallback_repositories = []
 
98
        self.tags = GitTags(self._git.get_tags())
62
99
 
63
 
    def _all_revision_ids(self):
64
 
        if self._git.heads == []:
65
 
            return set()
66
 
        ret = set()
67
 
        skip = 0
68
 
        max_count = 1000
69
 
        cms = None
70
 
        while cms != []:
71
 
            cms = self._git.commits("--all", max_count=max_count, skip=skip)
72
 
            skip += max_count
73
 
            ret.update([ids.convert_revision_id_git_to_bzr(cm.id) for cm in cms])
 
100
    def all_revision_ids(self):
 
101
        ret = set([revision.NULL_REVISION])
 
102
        if self._git.heads() == []:
 
103
            return ret
 
104
        bzr_heads = [self.get_mapping().revision_id_foreign_to_bzr(h) for h in self._git.heads()]
 
105
        ret = set(bzr_heads)
 
106
        graph = self.get_graph()
 
107
        for rev, parents in graph.iter_ancestry(bzr_heads):
 
108
            ret.add(rev)
74
109
        return ret
75
110
 
76
 
    def is_shared(self):
77
 
        return True
78
 
 
79
 
    def supports_rich_root(self):
80
 
        return False
81
 
 
82
111
    #def get_revision_delta(self, revision_id):
83
112
    #    parent_revid = self.get_revision(revision_id).parent_ids[0]
84
113
    #    diff = self._git.diff(ids.convert_revision_id_bzr_to_git(parent_revid),
85
114
    #                   ids.convert_revision_id_bzr_to_git(revision_id))
86
115
 
87
 
    def get_ancestry(self, revision_id):
88
 
        revision_id = revision.ensure_null(revision_id)
89
 
        ret = []
90
 
        if revision_id != revision.NULL_REVISION:
91
 
            skip = 0
92
 
            max_count = 1000
93
 
            cms = None
94
 
            while cms != []:
95
 
                cms = self._git.commits(ids.convert_revision_id_bzr_to_git(revision_id), max_count=max_count, skip=skip)
96
 
                skip += max_count
97
 
                ret += [ids.convert_revision_id_git_to_bzr(cm.id) for cm in cms]
98
 
        return [None] + ret
 
116
    def _make_parents_provider(self):
 
117
        """See Repository._make_parents_provider()."""
 
118
        return self._parents_provider
 
119
 
 
120
    def get_parent_map(self, revids):
 
121
        parent_map = {}
 
122
        mutter("get_parent_map(%r)", revids)
 
123
        for revision_id in revids:
 
124
            assert isinstance(revision_id, str)
 
125
            if revision_id == revision.NULL_REVISION:
 
126
                parent_map[revision_id] = ()
 
127
                continue
 
128
            hexsha, mapping = self.lookup_git_revid(revision_id)
 
129
            commit  = self._git.commit(hexsha)
 
130
            if commit is None:
 
131
                continue
 
132
            else:
 
133
                parent_map[revision_id] = [mapping.revision_id_foreign_to_bzr(p) for p in commit.parents]
 
134
        return parent_map
 
135
 
 
136
    def get_ancestry(self, revision_id, topo_sorted=True):
 
137
        """See Repository.get_ancestry().
 
138
        """
 
139
        if revision_id is None:
 
140
            return self._all_revision_ids()
 
141
        assert isinstance(revision_id, str)
 
142
        ancestry = []
 
143
        graph = self.get_graph()
 
144
        for rev, parents in graph.iter_ancestry([revision_id]):
 
145
            if rev == revision.NULL_REVISION:
 
146
                rev = None
 
147
            ancestry.append(rev)
 
148
        ancestry.reverse()
 
149
        return ancestry
99
150
 
100
151
    def get_signature_text(self, revision_id):
101
152
        raise errors.NoSuchRevision(self, revision_id)
102
153
 
 
154
    def lookup_revision_id(self, revid):
 
155
        """Lookup a revision id.
 
156
        
 
157
        :param revid: Bazaar revision id.
 
158
        :return: Tuple with git revisionid and mapping.
 
159
        """
 
160
        # Yes, this doesn't really work, but good enough as a stub
 
161
        return osutils.sha(rev_id).hexdigest(), self.get_mapping()
 
162
 
103
163
    def has_signature_for_revision_id(self, revision_id):
104
164
        return False
105
165
 
106
 
    def get_parent_map(self, revision_ids):
107
 
        ret = {}
108
 
        for revid in revision_ids:
109
 
            if revid == revision.NULL_REVISION:
110
 
                ret[revid] = ()
111
 
            else:
112
 
                commit = self._git.commit(ids.convert_revision_id_bzr_to_git(revid))
113
 
                ret[revid] = tuple([ids.convert_revision_id_git_to_bzr(p.id) for p in commit.parents])
114
 
        return ret
 
166
    def lookup_git_revid(self, bzr_revid):
 
167
        try:
 
168
            return mapping_registry.revision_id_bzr_to_foreign(bzr_revid)
 
169
        except errors.InvalidRevisionId:
 
170
            raise errors.NoSuchRevision(self, bzr_revid)
115
171
 
116
172
    def get_revision(self, revision_id):
117
 
        git_commit_id = ids.convert_revision_id_bzr_to_git(revision_id)
118
 
        commit = self._git.commit(git_commit_id)
 
173
        git_commit_id, mapping = self.lookup_git_revid(revision_id)
 
174
        try:
 
175
            commit = self._git.commit(git_commit_id)
 
176
        except KeyError:
 
177
            raise errors.NoSuchRevision(self, revision_id)
119
178
        # print "fetched revision:", git_commit_id
120
 
        revision = self._parse_rev(commit)
 
179
        revision = mapping.import_commit(commit)
 
180
        assert revision is not None
121
181
        return revision
122
182
 
123
183
    def has_revision(self, revision_id):
124
184
        try:
125
185
            self.get_revision(revision_id)
126
 
        except NoSuchRevision:
 
186
        except errors.NoSuchRevision:
127
187
            return False
128
188
        else:
129
189
            return True
130
190
 
131
 
    def get_revisions(self, revisions):
132
 
        return [self.get_revision(r) for r in revisions]
133
 
 
134
 
    @classmethod
135
 
    def _parse_rev(klass, commit):
136
 
        """Convert a git commit to a bzr revision.
137
 
 
138
 
        :return: a `bzrlib.revision.Revision` object.
139
 
        """
140
 
        rev = revision.Revision(ids.convert_revision_id_git_to_bzr(commit.id))
141
 
        rev.parent_ids = tuple([ids.convert_revision_id_git_to_bzr(p.id) for p in commit.parents])
142
 
        rev.inventory_sha1 = ""
143
 
        rev.message = commit.message.decode("utf-8", "replace")
144
 
        rev.committer = str(commit.committer)
145
 
        rev.properties['author'] = str(commit.author)
146
 
        rev.timestamp = time.mktime(commit.committed_date)
147
 
        rev.timezone = 0
148
 
        return rev
 
191
    def get_revisions(self, revids):
 
192
        return [self.get_revision(r) for r in revids]
149
193
 
150
194
    def revision_trees(self, revids):
151
195
        for revid in revids:
165
209
        assert revision_id != None
166
210
        return self.revision_tree(revision_id).inventory
167
211
 
168
 
 
169
 
def escape_file_id(file_id):
170
 
    return file_id.replace('_', '__').replace(' ', '_s')
171
 
 
172
 
 
173
 
def unescape_file_id(file_id):
174
 
    return file_id.replace("_s", " ").replace("__", "_")
 
212
    def set_make_working_trees(self, trees):
 
213
        pass
 
214
 
 
215
    def fetch_objects(self, determine_wants, graph_walker, progress=None):
 
216
        return self._git.fetch_objects(determine_wants, graph_walker, progress)
175
217
 
176
218
 
177
219
class GitRevisionTree(revisiontree.RevisionTree):
179
221
    def __init__(self, repository, revision_id):
180
222
        self._repository = repository
181
223
        self.revision_id = revision_id
182
 
        git_id = ids.convert_revision_id_bzr_to_git(revision_id)
183
 
        self.tree = repository._git.commit(git_id).tree
 
224
        assert isinstance(revision_id, str)
 
225
        git_id, self.mapping = repository.lookup_git_revid(revision_id)
 
226
        try:
 
227
            commit = repository._git.commit(git_id)
 
228
        except KeyError, r:
 
229
            raise errors.NoSuchRevision(repository, revision_id)
 
230
        self.tree = commit.tree
184
231
        self._inventory = inventory.Inventory(revision_id=revision_id)
185
232
        self._inventory.root.revision = revision_id
186
233
        self._build_inventory(self.tree, self._inventory.root, "")
191
238
    def get_file_text(self, file_id):
192
239
        entry = self._inventory[file_id]
193
240
        if entry.kind == 'directory': return ""
194
 
        return self._repository._git.blob(entry.text_id).data
 
241
        return self._repository._git.get_blob(entry.text_id).data
195
242
 
196
 
    def _build_inventory(self, tree, ie, path):
 
243
    def _build_inventory(self, tree_id, ie, path):
197
244
        assert isinstance(path, str)
198
 
        for b in tree.contents:
199
 
            basename = b.name.decode("utf-8")
 
245
        tree = self._repository._git.tree(tree_id)
 
246
        for mode, name, hexsha in tree.entries():
 
247
            basename = name.decode("utf-8")
200
248
            if path == "":
201
 
                child_path = b.name
 
249
                child_path = name
202
250
            else:
203
 
                child_path = urlutils.join(path, b.name)
204
 
            file_id = escape_file_id(child_path.encode('utf-8'))
205
 
            if b.mode[0] == '0':
 
251
                child_path = urlutils.join(path, name)
 
252
            file_id = self.mapping.generate_file_id(child_path)
 
253
            entry_kind = (mode & 0700000) / 0100000
 
254
            if entry_kind == 0:
206
255
                child_ie = inventory.InventoryDirectory(file_id, basename, ie.file_id)
207
 
            elif b.mode[0] == '1':
208
 
                if b.mode[1] == '0':
 
256
            elif entry_kind == 1:
 
257
                file_kind = (mode & 070000) / 010000
 
258
                b = self._repository._git.get_blob(hexsha)
 
259
                if file_kind == 0:
209
260
                    child_ie = inventory.InventoryFile(file_id, basename, ie.file_id)
210
261
                    child_ie.text_sha1 = osutils.sha_string(b.data)
211
 
                elif b.mode[1] == '2':
 
262
                elif file_kind == 2:
212
263
                    child_ie = inventory.InventoryLink(file_id, basename, ie.file_id)
213
264
                    child_ie.text_sha1 = osutils.sha_string("")
214
265
                else:
215
266
                    raise AssertionError(
216
 
                        "Unknown file kind, perms=%r." % (b.mode,))
 
267
                        "Unknown file kind, perms=%o." % (mode,))
217
268
                child_ie.text_id = b.id
218
 
                child_ie.text_size = b.size
 
269
                child_ie.text_size = len(b.data)
219
270
            else:
220
271
                raise AssertionError(
221
 
                    "Unknown blob kind, perms=%r." % (b.mode,))
222
 
            child_ie.executable = bool(int(b.mode[3:], 8) & 0111)
 
272
                    "Unknown blob kind, perms=%r." % (mode,))
 
273
            fs_mode = mode & 0777
 
274
            child_ie.executable = bool(fs_mode & 0111)
223
275
            child_ie.revision = self.revision_id
224
276
            self._inventory.add(child_ie)
225
 
            if b.mode[0] == '0':
226
 
                self._build_inventory(b, child_ie, child_path)
 
277
            if entry_kind == 0:
 
278
                self._build_inventory(hexsha, child_ie, child_path)
227
279
 
228
280
 
229
281
class GitFormat(object):
230
282
 
231
283
    supports_tree_reference = False
 
284
    rich_root_data = True
232
285
 
233
286
    def get_format_description(self):
234
287
        return "Git Repository"
 
288
 
 
289
    def initialize(self, url, shared=False, _internal=False):
 
290
        raise bzr_errors.UninitializableFormat(self)
 
291
 
 
292
    def check_conversion_target(self, target_repo_format):
 
293
        return target_repo_format.rich_root_data