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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
|
package urpm::cfg;
use strict;
use warnings;
use urpm::util;
use urpm::msg 'N';
=head1 NAME
urpm::cfg - routines to handle the urpmi configuration files
=head1 SYNOPSIS
=head1 DESCRIPTION
=over
=item load_config($file)
Reads an urpmi configuration file and returns its contents in a hash ref :
{
'medium name 1' => {
url => 'http://...',
option => 'value',
...
}
'' => {
# global options go here
},
}
Returns undef() in case of parsing error (and sets C<$urpm::cfg::err> to the
appropriate error message.)
=item dump_config($file, $config)
Does the opposite: write the configuration file, from the same data structure.
Returns 1 on success, 0 on failure.
=cut
#- implementations of the substitutions. arch and release are mdk-specific
my ($arch, $release);
sub _init_arch_release () {
if (!$arch && !$release) {
open my $f, '/etc/release' or return undef;
my $l = <$f>;
close $f;
($release, $arch) = $l =~ /release (\d+\.\d+).*for (\w+)/;
$release = 'cooker' if $l =~ /cooker/i;
}
1;
}
sub get_arch () { _init_arch_release(); $arch }
sub get_release () { _init_arch_release(); $release }
sub get_host () {
my $h;
if (open my $f, '/proc/sys/kernel/hostname') {
$h = <$f>;
close $f;
} else {
$h = $ENV{HOSTNAME} || `/bin/hostname`;
}
chomp $h;
$h;
}
our $err;
sub _syntax_error () { $err = N("syntax error in config file at line %s", $.) }
sub substitute_back {
my ($new, $old) = @_;
return $new if !defined($old);
return $old if expand_line($old) eq $new;
return $new;
}
my %substitutions;
sub expand_line {
my ($line) = @_;
unless (scalar keys %substitutions) {
%substitutions = (
HOST => get_host(),
ARCH => get_arch(),
RELEASE => get_release(),
);
}
foreach my $sub (keys %substitutions) {
$line =~ s/\$$sub\b/$substitutions{$sub}/g;
}
return $line;
}
sub load_config ($;$) {
my ($file, $norewrite) = @_;
my %config;
my $priority = 0;
my $medium;
$err = '';
open my $f, $file or do { $err = N("unable to read config file [%s]", $file); return };
local $_;
while (<$f>) {
chomp;
next if /^\s*#/; #- comments
s/^\s+//; s/\s+$//;
$_ = expand_line($_) unless $norewrite;
if ($_ eq '}') { #-{
if (!defined $medium) {
_syntax_error();
return;
}
$config{$medium}{priority} = $priority++; #- to preserve order
undef $medium;
next;
}
if (defined $medium && /{$/) { #-}
_syntax_error();
return;
}
if ($_ eq '{') { #-} Entering a global block
$medium = '';
next;
}
if (/^(.*?[^\\])\s+(?:(.*?[^\\])\s+)?{$/) { #- medium definition
$medium = unquotespace $1;
if ($config{$medium}) {
#- hmm, somebody fudged urpmi.cfg by hand.
$err = N("medium `%s' is defined twice, aborting", $medium);
return;
}
$config{$medium}{url} = unquotespace $2;
next;
}
#- config values
/^(hdlist
|list
|with_hdlist
|removable
|md5sum
|limit-rate
|excludepath
|split-(?:level|length)
|priority-upgrade
|prohibit-remove
|downloader
|retry
)\s*:\s*['"]?(.*?)['"]?$/x
and $config{$medium}{$1} = $2, next;
/^key[-_]ids\s*:\s*['"]?(.*?)['"]?$/
and $config{$medium}{'key-ids'} = $1, next;
#- positive flags
/^(update|ignore|synthesis|noreconfigure|static|virtual)$/
and $config{$medium}{$1} = 1, next;
my ($no, $k, $v);
#- boolean options
if (($no, $k, $v) = /^(no-)?(
verify-rpm
|norebuild
|fuzzy
|allow-(?:force|nodeps)
|(?:pre|post)-clean
|excludedocs
|compress
|keep
|auto
|strict-arch
|nopubkey
|resume)(?:\s*:\s*(.*))?$/x
) {
my $yes = $no ? 0 : 1;
$no = $yes ? 0 : 1;
$v = '' unless defined $v;
$config{$medium}{$k} = $v =~ /^(yes|on|1|)$/i ? $yes : $no;
next;
}
#- obsolete
$_ eq 'modified' and next;
}
close $f;
return \%config;
}
sub dump_config ($$) {
my ($file, $config) = @_;
my $config_old = load_config($file, 1);
my @media = sort {
return 0 if $a eq $b;
return -1 if $a eq ''; #- global options come first
return 1 if $b eq '';
return $config->{$a}{priority} <=> $config->{$b}{priority} || $a cmp $b;
} keys %$config;
open my $f, '>', $file or do {
$err = N("unable to write config file [%s]", $file);
return 0;
};
foreach my $m (@media) {
if ($m) {
print $f quotespace($m), ' ', quotespace(substitute_back($config->{$m}{url}, $config_old->{$m}{url})), " {\n";
} else {
next if !keys %{$config->{''}};
print $f "{\n";
}
foreach (sort grep { $_ && $_ ne 'url' } keys %{$config->{$m}}) {
if (/^(update|ignore|synthesis|noreconfigure|static|virtual)$/) {
print $f " $_\n";
} elsif ($_ ne 'priority') {
print $f " $_: " . substitute_back($config->{$m}{$_}, $config_old->{$m}{$_}) . "\n";
}
}
print $f "}\n\n";
}
close $f;
return 1;
}
#- routines to handle mirror list location
#- Default mirror list
our $mirrors = 'http://www.mandrivalinux.com/mirrorsfull.list';
sub mirrors_cfg () {
if (-e "/etc/urpmi/mirror.config") {
local $_;
open my $fh, "/etc/urpmi/mirror.config" or return undef;
while (<$fh>) {
chomp; s/#.*$//; s/^\s*//; s/\s*$//;
/^url\s*=\s*(.*)/ and $mirrors = $1;
}
close $fh;
}
return 1;
}
1;
__END__
=back
=head1 COPYRIGHT
Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 MandrakeSoft SA
Copyright (C) 2005 Mandriva SA
=cut
|
