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/
usr/
share/
doc/
apt-xapian-index/
examples/
- drwxr-xr-x
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Viewing file:  axi-query-similar.py (2.9 KB) -rwxr-xr-xSelect action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
#!/usr/bin/python
# axi-query-similar - Show packages similar to a given one
#
# Copyright (C) 2007 Enrico Zini <enrico@debian.org>
#
# 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
from optparse import OptionParser
import sys
VERSION="0.1"
# Let's start with a simple command line parser with help
class Parser(OptionParser):
def __init__(self, *args, **kwargs):
OptionParser.__init__(self, *args, **kwargs)
def error(self, msg):
sys.stderr.write("%s: error: %s\n\n" % (self.get_prog_name(), msg))
self.print_help(sys.stderr)
sys.exit(2)
parser = Parser(usage="usage: %prog [options] package(s)",
version="%prog "+ VERSION,
description="Find the packages similar to the given ones")
(options, args) = parser.parse_args()
# Import the rest here so we don't need dependencies to be installed only to
# print commandline help
import os
import xapian
from aptxapianindex import *
# Instantiate a xapian.Database object for read only access to the index
db = xapian.Database(XAPIANDB)
def docForPackage(pkgname):
"Get the document corresponding to the package with the given name"
# Query the term with the package name
query = xapian.Query("XP"+pkgname)
enquire = xapian.Enquire(db)
enquire.set_query(query)
# Get the top result only
matches = enquire.get_mset(0, 1)
if matches.size() == 0:
return None
else:
m = matches[0]
return m.document
# Build a term list with all the terms in the given packages
terms = []
for pkgname in args:
# Get the document corresponding to the package name
doc = docForPackage(pkgname)
if not doc: continue
# Retrieve all the terms in the document
for t in doc.termlist():
if len(t.term) < 2 or t.term[:2] != 'XP':
terms.append(t.term)
# Build the big OR query
query = xapian.Query(xapian.Query.OP_AND_NOT,
# Terms we want
xapian.Query(xapian.Query.OP_OR, terms),
# AND NOT the input packages
xapian.Query(xapian.Query.OP_OR, ["XP"+name for name in args]))
# Perform the query
enquire = xapian.Enquire(db)
enquire.set_query(query)
# Retrieve the top 20 results
matches = enquire.get_mset(0, 20)
# Display the results
show_mset(matches)
sys.exit(0)
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