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# -*- coding: utf-8 -*-
# Copyright (C) 2011 Niels Thykier <niels@thykier.net>
# 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.
import readline
import bisect
class Completer(object):
"""Completer class
This class provides a readline completer for the britney hint-tester
command-line interface.
"""
def __init__(self, britney):
"""Constructor
Creates a completer for a given britney.
"""
self.matches = []
self.cmds = ['easy', 'hint', 'force-hint', 'exit', 'quit']
self.britney = britney
# generate a completion list from excuses.
# - it might contain too many items, but meh
complete = []
for e in britney.excuses:
ver = None
pkg = e.name
suite = 'unstable'
if pkg[0] == '-':
suite = 'testing'
pkg = pkg[1:]
if "/" in pkg:
pkg = pkg.split("/")[0]
name = "%s/%s" % (e.name, britney.sources[suite][pkg][0]) # 0 == VERSION
complete.append(name)
self.packages = sorted(complete)
def completer(self, text, state):
"""readline completer (see the readline API)"""
origline = readline.get_line_buffer()
words = origline.split()
if state < 1:
self.matches = []
if len(words) < 1 or words[0] == text:
# complete a command
self.matches = [x for x in self.cmds if x.startswith(text)]
else:
# complete pkg/[arch/]version
start = bisect.bisect_left(self.packages, text)
while start < len(self.packages):
if not self.packages[start].startswith(text):
break
self.matches.append(self.packages[start])
start += 1
if len(self.matches) > state:
return self.matches[state]
return None