/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 server.py

Move refs code to separate module.

Show diffs side-by-side

added added

removed removed

Lines of Context:
server.py
 
1
# Copyright (C) 2008 Jelmer Vernooij
 
2
# Copyright (C) 2008 John Carr
1
3
# Copyright (C) 2008 Canonical Ltd
2
4
#
3
5
# This program is free software; you can redistribute it and/or modify
14
16
# along with this program; if not, write to the Free Software
15
17
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16
18
 
17
 
import os
18
 
import tempfile
19
 
 
20
19
from dulwich.server import TCPGitServer
21
 
import os
22
20
 
23
21
from bzrlib.bzrdir import (
24
22
    BzrDir,
25
 
    BzrDirFormat,
26
23
    )
27
 
from bzrlib.repository import (
28
 
    Repository,
 
24
from bzrlib.errors import (
 
25
    NotBranchError,
29
26
    )
30
27
 
31
 
from bzrlib.plugins.git.fetch import (
32
 
    import_git_objects,
33
 
    BazaarObjectStore,
34
 
    )
35
28
from bzrlib.plugins.git.mapping import (
36
29
    default_mapping,
37
30
    )
38
31
from bzrlib.plugins.git.object_store import (
39
32
    get_object_store
40
33
    )
 
34
from bzrlib.plugins.git.refs import (
 
35
    branch_name_to_ref,
 
36
    ref_to_branch_name,
 
37
    )
41
38
 
42
39
from dulwich.server import (
43
40
    Backend,
44
 
    )
45
 
from dulwich.pack import (
46
 
    Pack,
47
 
    PackData,
48
 
    write_pack_index_v2,
49
 
    )
50
 
 
 
41
    BackendRepo,
 
42
    )
51
43
 
52
44
class BzrBackend(Backend):
 
45
    """A git serve backend that can use a Bazaar repository."""
53
46
 
54
47
    def __init__(self, transport):
55
48
        self.transport = transport
56
49
        self.mapping = default_mapping
57
50
 
 
51
    def open_repository(self, path):
 
52
        # FIXME: More secure path sanitization
 
53
        return BzrBackendRepo(self.transport.clone(path.lstrip("/")),
 
54
            self.mapping)
 
55
 
 
56
 
 
57
class BzrBackendRepo(BackendRepo):
 
58
 
 
59
    def __init__(self, transport, mapping):
 
60
        self.transport = transport
 
61
        self.mapping = mapping
 
62
        self.repo_dir = BzrDir.open_from_transport(self.transport)
 
63
        self.repo = self.repo_dir.find_repository()
 
64
        self.object_store = get_object_store(self.repo)
 
65
 
 
66
    def get_peeled(self, name):
 
67
        return self.get_refs()[name]
 
68
 
58
69
    def get_refs(self):
59
 
        """ return a dict of all tags and branches in repository (and shas) """
 
70
        """Return a dict of all tags and branches in repository (and shas) """
60
71
        ret = {}
61
 
        repo_dir = BzrDir.open_from_transport(self.transport)
62
 
        repo = repo_dir.find_repository()
63
 
        repo.lock_read()
 
72
        self.repo.lock_read()
64
73
        try:
65
 
            store = get_object_store(repo)
66
 
            branch = None
67
 
            for branch in repo.find_branches(using=True):
68
 
                #FIXME: Look for 'master' or 'trunk' in here, and set HEAD accordingly...
69
 
                #FIXME: Need to get branch path relative to its repository and use this instead of nick
70
 
                ret["refs/heads/"+branch.nick] = store._lookup_revision_sha1(branch.last_revision())
71
 
            if 'HEAD' not in ret and branch:
72
 
                ret['HEAD'] = store._lookup_revision_sha1(branch.last_revision())
 
74
            for branch in self.repo_dir.list_branches():
 
75
                ref = branch_name_to_ref(branch.name, "refs/heads/master")
 
76
                ret[ref] = self.object_store._lookup_revision_sha1(
 
77
                    branch.last_revision())
 
78
                assert type(ref) == str and type(ret[ref]) == str, \
 
79
                        "(%s) %r -> %r" % (branch.name, ref, ret[ref])
73
80
        finally:
74
 
            repo.unlock()
 
81
            self.repo.unlock()
75
82
        return ret
76
83
 
77
 
    def apply_pack(self, refs, read):
78
 
        """ apply pack from client to current repository """
79
 
 
80
 
        fd, path = tempfile.mkstemp(suffix=".pack")
81
 
        f = os.fdopen(fd, 'w')
82
 
        f.write(read())
83
 
        f.close()
84
 
 
85
 
        p = PackData(path)
86
 
        entries = p.sorted_entries()
87
 
        write_pack_index_v2(path[:-5]+".idx", entries, p.calculate_checksum())
88
 
 
89
 
        def get_objects():
90
 
            pack = Pack(path[:-5])
91
 
            for obj in pack.iterobjects():
92
 
                yield obj
93
 
 
94
 
        target = Repository.open_from_transport(self.transport)
95
 
 
96
 
        target.lock_write()
97
 
        try:
98
 
            target.start_write_group()
99
 
            try:
100
 
                import_git_objects(target, self.mapping, iter(get_objects()))
101
 
            finally:
102
 
                target.commit_write_group()
103
 
        finally:
104
 
            target.unlock()
105
 
 
 
84
    def set_refs(self, refs):
106
85
        for oldsha, sha, ref in refs:
107
 
            if ref[:11] == 'refs/heads/':
108
 
                branch_nick = ref[11:]
109
 
                transport = self.transport.clone(branch_nick)
110
 
 
111
 
                try:
112
 
                    target_dir = BzrDir.open_from_transport(transport)
113
 
                except:
114
 
                    format = BzrDirFormat.get_default_format()
115
 
                    format.initialize_on_transport(transport)
116
 
 
117
 
                try:
118
 
                    target_branch = target_dir.open_branch()
119
 
                except:
120
 
                    target_branch = target_dir.create_branch()
121
 
 
122
 
                rev_id = self.mapping.revision_id_foreign_to_bzr(sha)
 
86
            try:
 
87
                branch_name = ref_to_branch_name(ref)
 
88
            except ValueError:
 
89
                # FIXME: Cope with tags!
 
90
                continue
 
91
            try:
 
92
                target_branch = self.repo_dir.open_branch(branch_name)
 
93
            except NotBranchError:
 
94
                target_branch = self.repo.create_branch(branch_name)
 
95
 
 
96
            rev_id = self.mapping.revision_id_foreign_to_bzr(sha)
 
97
            target_branch.lock_write()
 
98
            try:
123
99
                target_branch.generate_revision_history(rev_id)
 
100
            finally:
 
101
                target_branch.unlock()
124
102
 
125
 
    def fetch_objects(self, determine_wants, graph_walker, progress):
 
103
    def fetch_objects(self, determine_wants, graph_walker, progress,
 
104
        get_tagged=None):
126
105
        """ yield git objects to send to client """
127
 
        bzrdir = BzrDir.open_from_transport(self.transport)
128
 
        repo = bzrdir.find_repository()
129
106
 
130
107
        # If this is a Git repository, just use the existing fetch_objects implementation.
131
 
        if getattr(repo, "fetch_objects", None) is not None:
132
 
            return repo.fetch_objects(determine_wants, graph_walker, None, progress)
 
108
        if getattr(self.repo, "fetch_objects", None) is not None:
 
109
            return self.repo.fetch_objects(determine_wants, graph_walker, progress,
 
110
                get_tagged)
133
111
 
134
112
        wants = determine_wants(self.get_refs())
135
 
        repo.lock_read()
136
 
        store = BazaarObjectStore(repo)
137
 
        have = store.find_common_revisions(graph_walker)
138
 
        missing_sha1s = store.find_missing_objects(have, wants, progress)
139
 
        return store.iter_shas(missing_sha1s)
 
113
        self.repo.lock_read()
 
114
        try:
 
115
            have = self.object_store.find_common_revisions(graph_walker)
 
116
            return self.object_store.generate_pack_contents(have, wants, progress,
 
117
                get_tagged)
 
118
        finally:
 
119
            self.repo.unlock()
140
120
 
141
121
 
142
122
def serve_git(transport, host=None, port=None, inet=False):
143
123
    backend = BzrBackend(transport)
144
124
 
145
 
    server = TCPGitServer(backend, 'localhost')
 
125
    if host is None:
 
126
        host = 'localhost'
 
127
    if port:
 
128
        server = TCPGitServer(backend, host, port)
 
129
    else:
 
130
        server = TCPGitServer(backend, host)
146
131
    server.serve_forever()