/usr/share/doc/apt-xapian-index/examples/ruby/axi-query-pkgtype.rb is in apt-xapian-index 0.47ubuntu8.
This file is owned by root:root, with mode 0o644.
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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 94 95 96 97 98 99 100 101 102 103 104 105 106 107 | #!/usr/bin/env ruby
#
# axi-query-pkgtype - Like axi-query-simple.py, but with a simple
# result filter
#
# Copyright (C) 2007 Enrico Zini <enrico@debian.org>
# Copyright (C) 2008 Daniel Brumbaugh Keeney
#
# 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
require 'optparse'
type = nil
OptionParser.new do |opts|
opts.program_name = 'axi-query-pkgtype.rb'
opts.version = '0.1'
opts.release = '1203587714'
opts.banner =
"Query the Apt Xapian index. Command line arguments can be keywords or Debtags tags"
opts.on '-t', '--type TYPE', "package type, one of 'game', 'gui', 'cmdline' or 'editor'" do |v|
type = v.to_sym
end
opts.on_tail("-h", "--help", "Show this message") do
puts opts
exit
end
end.parse! rescue ( puts 'try axi-query-pkgtype.rb --help'; exit 2 )
args = ARGV.collect do |i| i.dup; end
# Import the rest here so we don't need dependencies to be installed only to
# print commandline help
require 'xapian'
require 'aptxapianindex'
# This is our little database of simple Debtags filters we provide: the name
# entered by the user in "--type" maps to a piece of Xapian query
FILTER_DB = {
# We can do simple AND queries...
:game => Xapian::Query.new(Xapian::Query::OP_AND, ['XTuse::gameplaying', 'XTrole::program']),
# Or we can do complicate binary expressions...
:gui => Xapian::Query.new(
Xapian::Query::OP_AND, Xapian::Query.new('XTrole::program'),
Xapian::Query.new(Xapian::Query::OP_OR, 'XTinterface::x11', 'XTinterface::3d')),
:cmdline => Xapian::Query.new(Xapian::Query::OP_AND, 'XTrole::program', 'XTinterface::commandline'),
:editor => Xapian::Query.new(Xapian::Query::OP_AND, 'XTrole::program', 'XTuse::editing')
# Feel free to invent more
}
# Instantiate a xapian.Database object for read only access to the index
db = Xapian::Database.new(XAPIANDB)
# Build the base query as seen in axi-query-simple.py
query = Xapian::Query.new(Xapian::Query::OP_OR, terms_for_simple_query(args))
# See if the user wants to use one of the result filters
if type
if FILTER_DB.has_key? type
# If a filter was requested, AND it with the query
query = Xapian::Query.new(Xapian::Query::OP_AND, query, FILTER_DB[type])
else
$stderr.puts "Invalid filter type. Try one of %s" % FILTER_DB.keys.join(', ')
exit 1
end
end
# Perform the query, all the rest is as in axi-query-simple.py
enquire = Xapian::Enquire.new(db)
enquire.query = query
# Display the top 20 results, sorted by how well they match
matches = enquire.mset(0, 20)
puts "%i results found." % matches.matches_estimated
puts "Results 1-%i:" % matches.size
matches.matches.each do |m|
# /var/lib/apt-xapian-index/README tells us that the Xapian document data
# is the package name.
name = m.document.data
# Print the match, together with the short description
puts "%i%% %s - %s" % [m.percent, name, 'summary not available']
end
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