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1 # Copyright (C) 2008 Lemur Consulting Ltd
2 #
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 2 of the License, or
6 # (at your option) any later version.
7 #
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
12 #
13 # You should have received a copy of the GNU General Public License along
14 # with this program; if not, write to the Free Software Foundation, Inc.,
15 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
16 r"""_checkxapian.py: Check the version of xapian used.
17
18 Raises an ImportError on import if the version used is too old to be used at
19 all.
20
21 """
22 __docformat__ = "restructuredtext en"
23
24 # The minimum version of xapian required to work at all.
25 min_xapian_version = (1, 0, 6)
26
27 # Dictionary of features we can't support do to them being missing from the
28 # available version of xapian.
29 missing_features = {}
30
31 import xapian
32
33 versions = xapian.major_version(), xapian.minor_version(), xapian.revision()
34
35
36 if versions < min_xapian_version:
37 raise ImportError("""
38 Xapian Python bindings installed, but need at least version %d.%d.%d - got %s
39 """.strip() % tuple(list(min_xapian_version) + [xapian.version_string()]))
40
41 if not hasattr(xapian, 'TermCountMatchSpy'):
42 missing_features['tags'] = 1
43 if not hasattr(xapian, 'CategorySelectMatchSpy'):
44 missing_features['facets'] = 1
45
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