/brz/remove-bazaar

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Add basic infrastructure for dpush.

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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
 
23
22
import bzrlib
24
23
from bzrlib import (
25
 
    deprecated_graph,
26
24
    errors,
 
25
    graph,
27
26
    inventory,
28
27
    osutils,
29
28
    repository,
30
29
    revision,
31
30
    revisiontree,
 
31
    ui,
32
32
    urlutils,
33
 
    versionedfile,
34
33
    )
 
34
from bzrlib.foreign import (
 
35
        ForeignRepository,
 
36
        )
 
37
from bzrlib.trace import mutter
35
38
from bzrlib.transport import get_transport
36
39
 
37
 
from bzrlib.plugins.git import (
38
 
    versionedfiles
 
40
from bzrlib.plugins.git.foreign import (
 
41
    versionedfiles,
39
42
    )
40
 
from bzrlib.plugins.git.mapping import default_mapping
41
 
 
42
 
 
43
 
class GitRepository(repository.Repository):
 
43
from bzrlib.plugins.git.mapping import default_mapping, mapping_registry
 
44
from bzrlib.plugins.git.versionedfiles import GitTexts
 
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):
44
59
    """An adapter to git repositories for bzr."""
45
60
 
46
61
    _serializer = None
47
62
 
48
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)
49
93
        self.base = gitdir.root_transport.base
50
 
        self.bzrdir = gitdir
51
 
        self.control_files = lockfiles
52
94
        self._git = gitdir._git
53
95
        self.texts = None
54
96
        self.signatures = versionedfiles.VirtualSignatureTexts(self)
55
97
        self.revisions = versionedfiles.VirtualRevisionTexts(self)
56
 
        self._format = GitFormat()
57
 
        self._fallback_repositories = []
 
98
        self.inventories = versionedfiles.VirtualInventoryTexts(self)
 
99
        self.texts = GitTexts(self)
 
100
        self.tags = GitTags(self._git.get_tags())
58
101
 
59
 
    def _all_revision_ids(self):
60
 
        if self._git.heads == []:
61
 
            return set()
62
 
        ret = set()
63
 
        skip = 0
64
 
        max_count = 1000
65
 
        cms = None
66
 
        while cms != []:
67
 
            cms = self._git.commits("--all", max_count=max_count, skip=skip)
68
 
            skip += max_count
69
 
            ret.update([default_mapping.revision_id_foreign_to_bzr(cm.id) for cm in cms])
 
102
    def all_revision_ids(self):
 
103
        ret = set([revision.NULL_REVISION])
 
104
        if self._git.heads() == []:
 
105
            return ret
 
106
        bzr_heads = [self.get_mapping().revision_id_foreign_to_bzr(h) for h in self._git.heads()]
 
107
        ret = set(bzr_heads)
 
108
        graph = self.get_graph()
 
109
        for rev, parents in graph.iter_ancestry(bzr_heads):
 
110
            ret.add(rev)
70
111
        return ret
71
112
 
72
 
    def is_shared(self):
73
 
        return True
74
 
 
75
 
    def supports_rich_root(self):
76
 
        return False
77
 
 
78
113
    #def get_revision_delta(self, revision_id):
79
114
    #    parent_revid = self.get_revision(revision_id).parent_ids[0]
80
115
    #    diff = self._git.diff(ids.convert_revision_id_bzr_to_git(parent_revid),
81
116
    #                   ids.convert_revision_id_bzr_to_git(revision_id))
82
117
 
83
 
    def get_ancestry(self, revision_id):
84
 
        revision_id = revision.ensure_null(revision_id)
85
 
        ret = []
86
 
        if revision_id != revision.NULL_REVISION:
87
 
            skip = 0
88
 
            max_count = 1000
89
 
            cms = None
90
 
            while cms != []:
91
 
                cms = self._git.commits(self.lookup_git_revid(revision_id, default_mapping), max_count=max_count, skip=skip)
92
 
                skip += max_count
93
 
                ret += [default_mapping.revision_id_foreign_to_bzr(cm.id) for cm in cms]
94
 
        return [None] + ret
 
118
    def _make_parents_provider(self):
 
119
        """See Repository._make_parents_provider()."""
 
120
        return self._parents_provider
 
121
 
 
122
    def get_parent_map(self, revids):
 
123
        parent_map = {}
 
124
        mutter("get_parent_map(%r)", revids)
 
125
        for revision_id in revids:
 
126
            assert isinstance(revision_id, str)
 
127
            if revision_id == revision.NULL_REVISION:
 
128
                parent_map[revision_id] = ()
 
129
                continue
 
130
            hexsha, mapping = self.lookup_git_revid(revision_id)
 
131
            commit  = self._git.commit(hexsha)
 
132
            if commit is None:
 
133
                continue
 
134
            else:
 
135
                parent_map[revision_id] = [mapping.revision_id_foreign_to_bzr(p) for p in commit.parents]
 
136
        return parent_map
 
137
 
 
138
    def get_ancestry(self, revision_id, topo_sorted=True):
 
139
        """See Repository.get_ancestry().
 
140
        """
 
141
        if revision_id is None:
 
142
            return self._all_revision_ids()
 
143
        assert isinstance(revision_id, str)
 
144
        ancestry = []
 
145
        graph = self.get_graph()
 
146
        for rev, parents in graph.iter_ancestry([revision_id]):
 
147
            if rev == revision.NULL_REVISION:
 
148
                rev = None
 
149
            ancestry.append(rev)
 
150
        ancestry.reverse()
 
151
        return ancestry
 
152
 
 
153
    def import_revision_gist(self, source, revid):
 
154
        pass
 
155
 
 
156
    def dfetch(self, source, stop_revision):
 
157
        if stop_revision is None:
 
158
            raise NotImplementedError
 
159
        revidmap = {}
 
160
        todo = []
 
161
        source.lock_read()
 
162
        try:
 
163
            graph = source.get_graph()
 
164
            for revid, parents in graph.iter_ancestry([stop_revision]):
 
165
                if not self.has_revision(revid):
 
166
                    todo.append(revid)
 
167
            pb = ui.ui_factory.nested_progress_bar()
 
168
            try:
 
169
                for i, revid in enumerate(reversed(todo)):
 
170
                    pb.update("pushing revisions", i, len(todo))
 
171
                    revidmap[revid] = self.import_revision_gist(source, revid)
 
172
            finally:
 
173
                pb.finished()
 
174
        finally:
 
175
            source.unlock()
 
176
        return revidmap
95
177
 
96
178
    def get_signature_text(self, revision_id):
97
179
        raise errors.NoSuchRevision(self, revision_id)
98
180
 
 
181
    def lookup_revision_id(self, revid):
 
182
        """Lookup a revision id.
 
183
        
 
184
        :param revid: Bazaar revision id.
 
185
        :return: Tuple with git revisionid and mapping.
 
186
        """
 
187
        # Yes, this doesn't really work, but good enough as a stub
 
188
        return osutils.sha(rev_id).hexdigest(), self.get_mapping()
 
189
 
99
190
    def has_signature_for_revision_id(self, revision_id):
100
191
        return False
101
192
 
102
 
    def get_parent_map(self, revision_ids):
103
 
        ret = {}
104
 
        for revid in revision_ids:
105
 
            if revid == revision.NULL_REVISION:
106
 
                ret[revid] = ()
107
 
            else:
108
 
                commit = self._git.commit(self.lookup_git_revid(revid, default_mapping))
109
 
                ret[revid] = tuple([default_mapping.revision_id_foreign_to_bzr(p.id) for p in commit.parents])
110
 
        return ret
111
 
 
112
 
    def lookup_git_revid(self, bzr_revid, mapping):
 
193
    def lookup_git_revid(self, bzr_revid):
113
194
        try:
114
 
            return mapping.revision_id_bzr_to_foreign(bzr_revid)
 
195
            return mapping_registry.revision_id_bzr_to_foreign(bzr_revid)
115
196
        except errors.InvalidRevisionId:
116
 
            raise errors.NoSuchRevision(bzr_revid, self)
 
197
            raise errors.NoSuchRevision(self, bzr_revid)
117
198
 
118
199
    def get_revision(self, revision_id):
119
 
        git_commit_id = self.lookup_git_revid(revision_id, default_mapping)
120
 
        commit = self._git.commit(git_commit_id)
 
200
        git_commit_id, mapping = self.lookup_git_revid(revision_id)
 
201
        try:
 
202
            commit = self._git.commit(git_commit_id)
 
203
        except KeyError:
 
204
            raise errors.NoSuchRevision(self, revision_id)
121
205
        # print "fetched revision:", git_commit_id
122
 
        revision = self._parse_rev(commit)
 
206
        revision = mapping.import_commit(commit)
 
207
        assert revision is not None
123
208
        return revision
124
209
 
125
210
    def has_revision(self, revision_id):
126
211
        try:
127
212
            self.get_revision(revision_id)
128
 
        except NoSuchRevision:
 
213
        except errors.NoSuchRevision:
129
214
            return False
130
215
        else:
131
216
            return True
132
217
 
133
 
    def get_revisions(self, revisions):
134
 
        return [self.get_revision(r) for r in revisions]
135
 
 
136
 
    @classmethod
137
 
    def _parse_rev(klass, commit):
138
 
        """Convert a git commit to a bzr revision.
139
 
 
140
 
        :return: a `bzrlib.revision.Revision` object.
141
 
        """
142
 
        rev = revision.Revision(default_mapping.revision_id_foreign_to_bzr(commit.id))
143
 
        rev.parent_ids = tuple([default_mapping.revision_id_foreign_to_bzr(p.id) for p in commit.parents])
144
 
        rev.inventory_sha1 = ""
145
 
        rev.message = commit.message.decode("utf-8", "replace")
146
 
        rev.committer = str(commit.committer)
147
 
        rev.properties['author'] = str(commit.author)
148
 
        rev.timestamp = time.mktime(commit.committed_date)
149
 
        rev.timezone = 0
150
 
        return rev
 
218
    def get_revisions(self, revids):
 
219
        return [self.get_revision(r) for r in revids]
151
220
 
152
221
    def revision_trees(self, revids):
153
222
        for revid in revids:
170
239
    def set_make_working_trees(self, trees):
171
240
        pass
172
241
 
173
 
 
174
 
def escape_file_id(file_id):
175
 
    return file_id.replace('_', '__').replace(' ', '_s')
176
 
 
177
 
 
178
 
def unescape_file_id(file_id):
179
 
    return file_id.replace("_s", " ").replace("__", "_")
 
242
    def fetch_objects(self, determine_wants, graph_walker, progress=None):
 
243
        return self._git.fetch_objects(determine_wants, graph_walker, progress)
180
244
 
181
245
 
182
246
class GitRevisionTree(revisiontree.RevisionTree):
184
248
    def __init__(self, repository, revision_id):
185
249
        self._repository = repository
186
250
        self.revision_id = revision_id
187
 
        git_id = repository.lookup_git_revid(revision_id, default_mapping)
188
 
        self.tree = repository._git.commit(git_id).tree
 
251
        assert isinstance(revision_id, str)
 
252
        git_id, self.mapping = repository.lookup_git_revid(revision_id)
 
253
        try:
 
254
            commit = repository._git.commit(git_id)
 
255
        except KeyError, r:
 
256
            raise errors.NoSuchRevision(repository, revision_id)
 
257
        self.tree = commit.tree
189
258
        self._inventory = inventory.Inventory(revision_id=revision_id)
190
259
        self._inventory.root.revision = revision_id
191
260
        self._build_inventory(self.tree, self._inventory.root, "")
196
265
    def get_file_text(self, file_id):
197
266
        entry = self._inventory[file_id]
198
267
        if entry.kind == 'directory': return ""
199
 
        return self._repository._git.blob(entry.text_id).data
 
268
        return self._repository._git.get_blob(entry.text_id).data
200
269
 
201
 
    def _build_inventory(self, tree, ie, path):
 
270
    def _build_inventory(self, tree_id, ie, path):
202
271
        assert isinstance(path, str)
203
 
        for b in tree.contents:
204
 
            basename = b.name.decode("utf-8")
 
272
        tree = self._repository._git.tree(tree_id)
 
273
        for mode, name, hexsha in tree.entries():
 
274
            basename = name.decode("utf-8")
205
275
            if path == "":
206
 
                child_path = b.name
 
276
                child_path = name
207
277
            else:
208
 
                child_path = urlutils.join(path, b.name)
209
 
            file_id = escape_file_id(child_path.encode('utf-8'))
210
 
            if b.mode[0] == '0':
 
278
                child_path = urlutils.join(path, name)
 
279
            file_id = self.mapping.generate_file_id(child_path)
 
280
            entry_kind = (mode & 0700000) / 0100000
 
281
            if entry_kind == 0:
211
282
                child_ie = inventory.InventoryDirectory(file_id, basename, ie.file_id)
212
 
            elif b.mode[0] == '1':
213
 
                if b.mode[1] == '0':
 
283
            elif entry_kind == 1:
 
284
                file_kind = (mode & 070000) / 010000
 
285
                b = self._repository._git.get_blob(hexsha)
 
286
                if file_kind == 0:
214
287
                    child_ie = inventory.InventoryFile(file_id, basename, ie.file_id)
215
288
                    child_ie.text_sha1 = osutils.sha_string(b.data)
216
 
                elif b.mode[1] == '2':
 
289
                elif file_kind == 2:
217
290
                    child_ie = inventory.InventoryLink(file_id, basename, ie.file_id)
218
291
                    child_ie.text_sha1 = osutils.sha_string("")
219
292
                else:
220
293
                    raise AssertionError(
221
 
                        "Unknown file kind, perms=%r." % (b.mode,))
 
294
                        "Unknown file kind, perms=%o." % (mode,))
222
295
                child_ie.text_id = b.id
223
 
                child_ie.text_size = b.size
 
296
                child_ie.text_size = len(b.data)
224
297
            else:
225
298
                raise AssertionError(
226
 
                    "Unknown blob kind, perms=%r." % (b.mode,))
227
 
            child_ie.executable = bool(int(b.mode[3:], 8) & 0111)
 
299
                    "Unknown blob kind, perms=%r." % (mode,))
 
300
            fs_mode = mode & 0777
 
301
            child_ie.executable = bool(fs_mode & 0111)
228
302
            child_ie.revision = self.revision_id
229
303
            self._inventory.add(child_ie)
230
 
            if b.mode[0] == '0':
231
 
                self._build_inventory(b, child_ie, child_path)
 
304
            if entry_kind == 0:
 
305
                self._build_inventory(hexsha, child_ie, child_path)
232
306
 
233
307
 
234
308
class GitFormat(object):
235
309
 
236
310
    supports_tree_reference = False
 
311
    rich_root_data = True
237
312
 
238
313
    def get_format_description(self):
239
314
        return "Git Repository"
 
315
 
 
316
    def initialize(self, url, shared=False, _internal=False):
 
317
        raise bzr_errors.UninitializableFormat(self)
 
318
 
 
319
    def check_conversion_target(self, target_repo_format):
 
320
        return target_repo_format.rich_root_data