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
|
# $Id$
#
# Copyright (C) 1997 Klee Dienes <klee@mit.edu>
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
import string, regex, regex_syntax, types
import dpkg_version, dpkg_packages
def create_index ():
return {}
def augment_index (index, packages, source):
for p in packages:
names = [p['package']]
if (p.has_key ('provides')):
names = names + p['provides']
for name in names:
if (not index.has_key (name)):
index[name] = []
index[name].append (p)
def check_deps (pname, clause, index):
details = []
def check_dependency (clause, index = index, details = details):
regex.set_syntax (regex_syntax.RE_SYNTAX_EMACS)
depstr = regex.compile ('^<<\\|<=\\|=\\|>=\\|>>\\|<\\|>')
if (type (clause) == types.StringType):
constraint, package, version = None, clause, None
elif (depstr.search (clause[0]) >= 0):
constraint = clause[0]
package = clause[1]
version = clause[2]
else:
raise ValueError, 'invalid dependency clause "%s"' % str (clause)
if (index.has_key (package)):
plist = index[package]
else:
plist = []
found = 0
for t in plist:
pver = dpkg_packages.package_canon_version (t)
if ((constraint == None) or (dpkg_version.check_version (pver, constraint, version))):
details.append (('debug', 'resolved dependency on "%s" with "%s" version "%s"'
% (str(clause), t['package'], pver)))
found = 1
else:
details.append (('debug', 'failed to resolve dependency on "%s" with "%s" version "%s"'
% (str(clause), t['package'], pver)))
if (not found):
details.append (('error', 'unresolved dependency on "%s"' % str (clause)))
return 0
else:
return 1
rval = dpkg_packages.check_deps (clause, check_dependency)
return rval, details
|
