/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 inventory.py

Use CommonInventory to lazily evaluate trees.

Show diffs side-by-side

added added

removed removed

Lines of Context:
inventory.py
19
19
 
20
20
 
21
21
from bzrlib import (
 
22
    errors,
22
23
    inventory,
23
24
    osutils,
24
25
    urlutils,
25
26
    )
26
27
 
27
28
 
28
 
class GitInventory(inventory.Inventory):
29
 
 
30
 
    def __init__(self, tree_id, mapping, store, revision_id):
31
 
        super(GitInventory, self).__init__(revision_id)
32
 
        self.store = store
33
 
        self.mapping = mapping
34
 
        self.root.revision = revision_id
35
 
        self._build_inventory(tree_id, self.root, "")
36
 
 
37
 
    def _build_inventory(self, tree_id, ie, path):
38
 
        assert isinstance(path, str)
39
 
        tree = self.store[tree_id]
40
 
        for mode, name, hexsha in tree.entries():
 
29
class GitInventoryEntry(inventory.InventoryEntry):
 
30
 
 
31
    def __init__(self, inv, parent_id, hexsha, path, name, executable):
 
32
        self.name = name
 
33
        self.parent_id = parent_id
 
34
        self._inventory = inv
 
35
        self._object = None
 
36
        self.hexsha = hexsha
 
37
        self.path = path
 
38
        self.revision = self._inventory.revision_id
 
39
        self.executable = executable
 
40
        self.file_id = self._inventory.mapping.generate_file_id(path.encode('utf-8'))
 
41
 
 
42
    @property
 
43
    def object(self):
 
44
        if self._object is None:
 
45
            self._object = self._inventory.store[self.hexsha]
 
46
        return self._object
 
47
 
 
48
 
 
49
class GitInventoryFile(GitInventoryEntry):
 
50
 
 
51
    def __init__(self, inv, parent_id, hexsha, path, basename, executable):
 
52
        super(GitInventoryFile, self).__init__(inv, parent_id, hexsha, path, basename, executable)
 
53
        self.kind = 'file'
 
54
        self.symlink_target = None
 
55
 
 
56
    @property
 
57
    def text_sha1(self):
 
58
        return osutils.sha_string(self.object.data)
 
59
 
 
60
    @property
 
61
    def text_size(self):
 
62
        return len(self.object.data)
 
63
 
 
64
    def kind_character(self):
 
65
        """See InventoryEntry.kind_character."""
 
66
        return ''
 
67
 
 
68
 
 
69
class GitInventoryLink(GitInventoryEntry):
 
70
 
 
71
    def __init__(self, inv, parent_id, hexsha, path, basename, executable):
 
72
        super(GitInventoryLink, self).__init__(inv, parent_id, hexsha, path, basename, executable)
 
73
        self.text_sha1 = None
 
74
        self.text_size = None
 
75
        self.kind = 'symlink'
 
76
 
 
77
    @property
 
78
    def symlink_target(self):
 
79
        return self.object.data
 
80
 
 
81
    def kind_character(self):
 
82
        """See InventoryEntry.kind_character."""
 
83
        return ''
 
84
 
 
85
 
 
86
class GitInventoryDirectory(GitInventoryEntry):
 
87
 
 
88
    def __init__(self, inv, parent_id, hexsha, path, basename, executable):
 
89
        super(GitInventoryDirectory, self).__init__(inv, parent_id, hexsha, path, basename, executable)
 
90
        self.text_sha1 = None
 
91
        self.text_size = None
 
92
        self.symlink_target = None
 
93
        self.kind = 'directory'
 
94
 
 
95
    def kind_character(self):
 
96
        """See InventoryEntry.kind_character."""
 
97
        return '/'
 
98
 
 
99
    @property
 
100
    def children(self):
 
101
        ret = {}
 
102
        for mode, name, hexsha in self.object.entries():
41
103
            basename = name.decode("utf-8")
42
 
            if path == "":
43
 
                child_path = name
44
 
            else:
45
 
                child_path = urlutils.join(path, name)
46
 
            file_id = self.mapping.generate_file_id(child_path)
 
104
            child_path = osutils.pathjoin(self.path, basename)
47
105
            entry_kind = (mode & 0700000) / 0100000
 
106
            fs_mode = mode & 0777
 
107
            executable = bool(fs_mode & 0111)
48
108
            if entry_kind == 0:
49
 
                child_ie = inventory.InventoryDirectory(file_id, basename, ie.file_id)
 
109
                kind_class = GitInventoryDirectory
50
110
            elif entry_kind == 1:
51
111
                file_kind = (mode & 070000) / 010000
52
 
                b = self.store[hexsha]
53
112
                if file_kind == 0:
54
 
                    child_ie = inventory.InventoryFile(file_id, basename, ie.file_id)
55
 
                    child_ie.text_sha1 = osutils.sha_string(b.data)
 
113
                    kind_class = GitInventoryFile
56
114
                elif file_kind == 2:
57
 
                    child_ie = inventory.InventoryLink(file_id, basename, ie.file_id)
58
 
                    child_ie.symlink_target = b.data
59
 
                    child_ie.text_sha1 = osutils.sha_string("")
 
115
                    kind_class = GitInventoryLink
60
116
                else:
61
117
                    raise AssertionError(
62
118
                        "Unknown file kind, perms=%o." % (mode,))
63
 
                child_ie.text_id = b.id
64
 
                child_ie.text_size = len(b.data)
65
119
            else:
66
120
                raise AssertionError(
67
121
                    "Unknown blob kind, perms=%r." % (mode,))
68
 
            fs_mode = mode & 0777
69
 
            child_ie.executable = bool(fs_mode & 0111)
70
 
            # TODO: This should be set to the revision id in which 
71
 
            # child_ie was last changed instead.
72
 
            child_ie.revision = self.root.revision
73
 
            self.add(child_ie)
74
 
            if entry_kind == 0:
75
 
                self._build_inventory(hexsha, child_ie, child_path)
 
122
            ret[basename] = kind_class(self._inventory, self.file_id, hexsha, child_path, basename, executable)
 
123
        return ret
 
124
 
 
125
 
 
126
class GitInventory(inventory.Inventory):
 
127
 
 
128
    def __init__(self, tree_id, mapping, store, revision_id):
 
129
        super(GitInventory, self).__init__(revision_id)
 
130
        self.store = store
 
131
        self.mapping = mapping
 
132
        self.root = GitInventoryDirectory(self, None, tree_id, "", "", False)
 
133
 
 
134
    def _get_ie(self, path):
 
135
        parts = path.split("/")
 
136
        ie = self.root
 
137
        for name in parts:
 
138
            ie = ie.children[name] 
 
139
        return ie
 
140
 
 
141
    def has_filename(self, path):
 
142
        try:
 
143
            self._get_ie(path)
 
144
            return True
 
145
        except KeyError:
 
146
            return False
 
147
 
 
148
    def has_id(self, file_id):
 
149
        try:
 
150
            self.id2path(file_id)
 
151
            return True
 
152
        except errors.NoSuchId:
 
153
            return False
 
154
 
 
155
    def id2path(self, file_id):
 
156
        path = self.mapping.parse_file_id(file_id)
 
157
        try:
 
158
            ie = self._get_ie(path)
 
159
            assert ie.path == path
 
160
        except KeyError:
 
161
            raise errors.NoSuchId(None, file_id)
 
162
 
 
163
    def path2id(self, path):
 
164
        try:
 
165
            return self._get_ie(path).file_id
 
166
        except KeyError:
 
167
            return None
 
168
 
 
169
    def __getitem__(self, file_id):
 
170
        if file_id == inventory.ROOT_ID:
 
171
            return self.root
 
172
        path = self.mapping.parse_file_id(file_id)
 
173
        return self._get_ie(path)