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
|
#
## Debconf Client Driver for Ruby
#
# Copyright (C) 1999 Masato Taruishi <taru@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 with
# the Debian GNU/Linux distribution in file /usr/share/common-licenses/GPL;
# if not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307 USA
if ENV["DEBIAN_HAS_FRONTEND"] == nil then
args = ""
for arg in ARGV
args << arg << " "
end
stdout_dup = STDOUT.clone
stdin_dup = STDIN.clone
ENV["DEBCONF_RUBY_STDOUT"] = "#{stdout_dup.fileno}"
ENV["DEBCONF_RUBY_STDIN"] = "#{stdin_dup.fileno}"
exec "/usr/share/debconf/frontend #{$0} #{args}"
end
module Debconf
## TODO: need to implement Exception & Error using exception
module Exception
class InvalidParametersException < ::Exception; end
class UnknownReturnValueException < ::Exception; end
end
module Error
class SyntaxError < ::SyntaxError; end
class InternalError < ::RuntimeError; end
class InternalRubyError < ::RuntimeError; end
end
module ConfModule
DEBCONF_OUT = STDOUT.clone
STDOUT.reopen(IO.new(ENV["DEBCONF_RUBY_STDOUT"].to_i, "w"))
DEBCONF_OUT.sync=true
DEBCONF_IN = STDIN.clone
STDIN.reopen(IO.new(ENV["DEBCONF_RUBY_STDIN"].to_i, "r"))
DEBCONF_IN.sync=true
COMMANDS = [
"capb", "set", "reset", "title", "input",
"beginblock", "endblock", "go", "get", "register",
"unregister", "subst", "previous_module", "fset",
"fget", "purge", "metaget", "version", "clear"
]
def parse_ret (ret)
if /(\d+)( (.*))?/ =~ ret then
case $1
when "0"
ret = $3
when "10".."19"
raise Debconf::Exception::InvalidParametersException
when "20".."29"
raise Debconf::Error::SyntaxError, ret
when "30".."39"
## TODO: needs command specific routines (delegator?)
nil
else
raise Debconf::Exception::UnknownReturnValueException, ret
end
else
raise InternalRubyError
end
ret
end
COMMANDS.each do |command|
eval "def #{command} (*args)
DEBCONF_OUT.print \"#{command.upcase} \"
for s in args
DEBCONF_OUT.print s
DEBCONF_OUT.print ' '
end
DEBCONF_OUT.print \"\n\"
parse_ret(DEBCONF_IN.gets.chomp)
end"
end
end
end
|
