1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
# Copyright (C) 2008 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""WorkingTree5 format and implementation.
"""
from bzrlib.lazy_import import lazy_import
lazy_import(globals(), """
from bzrlib import (
views,
workingtree_4,
)
""")
class WorkingTree5(workingtree_4.WorkingTree4):
"""This is the Format 5 working tree.
This differs from WorkingTree4 by:
- Supporting a current view that may mask the set of files in a tree
impacted by most user operations.
This is new in bzr 1.7.
"""
def _make_views(self):
return views.PathBasedViews(self)
class WorkingTreeFormat5(workingtree_4.WorkingTreeFormat4):
"""WorkingTree format supporting views.
"""
upgrade_recommended = False
_tree_class = WorkingTree5
def get_format_string(self):
"""See WorkingTreeFormat.get_format_string()."""
return "Bazaar Working Tree Format 5 (bzr 1.7)\n"
def get_format_description(self):
"""See WorkingTreeFormat.get_format_description()."""
return "Working tree format 5"
def _init_custom_control_files(self, wt):
"""Subclasses with custom control files should override this method."""
wt._transport.put_bytes('views', '', mode=wt.bzrdir._get_file_mode())
def supports_views(self):
return True
class Converter4to5(object):
"""Perform an in-place upgrade of format 4 to format 5 trees."""
def __init__(self):
self.target_format = WorkingTreeFormat5()
def convert(self, tree):
# lock the control files not the tree, so that we don't get tree
# on-unlock behaviours, and so that no-one else diddles with the
# tree during upgrade.
tree._control_files.lock_write()
try:
self.init_custom_control_files(tree)
self.update_format(tree)
finally:
tree._control_files.unlock()
def init_custom_control_files(self, tree):
"""Initialize custom control files."""
tree._transport.put_bytes('views', '',
mode=tree.bzrdir._get_file_mode())
def update_format(self, tree):
"""Change the format marker."""
tree._transport.put_bytes('format',
self.target_format.get_format_string(),
mode=tree.bzrdir._get_file_mode())
|