summaryrefslogtreecommitdiffstats
path: root/urpm/cdrom.pm
blob: 1ae8ccebfa2fad5e49b75b2a7654bb885e3c16ba (plain)
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
package urpm::cdrom;

# $Id$

use urpm::msg;
use urpm::sys;
use urpm::util;
use urpm::get_pkgs;
use urpm::removable;
use urpm 'file_from_local_medium';



#- side-effects: $blists_url->[_]{medium}{mntpoint}
sub _find_blist_url_matching {
    my ($urpm, $blists_url, $mntpoint) = @_;

    my @l;
    foreach my $blist (@$blists_url) {
	$blist->{medium}{mntpoint} and next;

	# set it, then verify
	$blist->{medium}{mntpoint} = $mntpoint;
	if (-r urpm::removable::file_or_synthesis_dir_from_blist($blist)) {
	    $urpm->{log}("found cdrom $blist->{medium}{name} mounted in $mntpoint");
	    push @l, $blist;
	} else {
	    delete $blist->{medium}{mntpoint};
	}
    }
    @l;
}

#- side-effects: none
sub _look_for_mounted_cdrom_in_mtab() {

    map { $_->{mntpoint} } 
      grep { $_->{fs} eq 'iso9660' || $_->{fs} eq 'udf' } urpm::sys::read_mtab();
}

#- side-effects:
#-   + those of _try_mounting_cdrom_using_hal ($urpm->{cdrom_mounted}, "hal_mount")
#-   + those of _find_blist_url_matching ($blists_url->[_]{medium}{mntpoint})
sub try_mounting_cdrom {
    my ($urpm, $blists_url) = @_;

    my @blists_url;

    # first try without hal, it allows users where hal fails to work (with one CD only)
    my @mntpoints = _look_for_mounted_cdrom_in_mtab();
    @blists_url = map { _find_blist_url_matching($urpm, $blists_url, $_) } @mntpoints;

    if (!@blists_url) {
	@mntpoints = _try_mounting_cdrom_using_hal($urpm);
	@blists_url = map { _find_blist_url_matching($urpm, $blists_url, $_) } @mntpoints;
    }
    @blists_url;
}

#- side-effects: $urpm->{cdrom_mounted}, "hal_mount"
sub _try_mounting_cdrom_using_hal {
    my ($urpm) = @_;

    $urpm->{cdrom_mounted} = {}; # reset

    eval { require Hal::Cdroms; 1 } or $urpm->{error}(N("You must mount CD-ROM yourself (or install perl-Hal-Cdroms to have it done automatically)")), return();

    my $hal_cdroms = eval { Hal::Cdroms->new } or $urpm->{fatal}(N("HAL daemon (hald) is not running or not ready"));

    foreach my $hal_path ($hal_cdroms->list) {
	my $mntpoint;
	if ($mntpoint = $hal_cdroms->get_mount_point($hal_path)) {
	} else {
	    $urpm->{log}("trying to mount $hal_path");
	    $mntpoint = $hal_cdroms->ensure_mounted($hal_path)
	      or $urpm->{error}("failed to mount $hal_path: $hal_cdroms->{error}"), next;
	}
	$urpm->{cdrom_mounted}{$hal_path} = $mntpoint;
    }
    values %{$urpm->{cdrom_mounted}};
}

#- side-effects:
#-   + those of try_mounting_cdrom ($urpm->{cdrom_mounted}, $blists_url->[_]{medium}{mntpoint}, "hal_mount")
sub _mount_cdrom_and_check {
    my ($urpm, $blists) = @_;

    my @matching_blists = try_mounting_cdrom($urpm, $blists) or return;
    grep { !_check_notfound($_) } @matching_blists;
}

#- side-effects: none
sub _check_notfound {
    my ($blist) = @_;

    $blist->{medium}{mntpoint} or return;

    foreach (values %{$blist->{pkgs}}) {
	my $dir_ = _filepath($blist, $_) or next;
	-r $dir_ or return 1;
    }
    0;
}

#- side-effects:
#-   + those of _eject_cdrom ($urpm->{cdrom_mounted}, "hal_umount", "hal_eject")
sub _may_eject_cdrom {
    my ($urpm) = @_;

    my @paths = keys %{$urpm->{cdrom_mounted}};
    @paths == 1 or return;

    # only one cdrom mounted, we know it is the one to umount/eject
    _eject_cdrom($urpm, $paths[0]);
}


#- side-effects: $urpm->{cdrom_mounted}, "hal_umount", "hal_eject"
sub _eject_cdrom {
    my ($urpm, $hal_path) = @_;

    my $mntpoint = delete $urpm->{cdrom_mounted}{$hal_path};
    $urpm->{debug} and $urpm->{debug}("umounting and ejecting $mntpoint (cdrom $hal_path)");

    eval { require Hal::Cdroms; 1 } or return;

    my $hal_cdroms = Hal::Cdroms->new;
    $hal_cdroms->unmount($hal_path) or do {
	my $mntpoint = $hal_cdroms->get_mount_point($hal_path);
	#- trying harder. needed when the cdrom was not mounted by hal
	$mntpoint && system("umount '$mntpoint' 2>/dev/null") == 0
	  or $urpm->{error}("failed to umount $hal_path: $hal_cdroms->{error}");
    };
    $hal_cdroms->eject($hal_path);
    1;
}

#- side-effects: "eject"
#-   + those of _mount_cdrom_and_check ($urpm->{cdrom_mounted}, $blists_url->[_]{medium}{mntpoint}, "hal_mount")
#-   + those of _may_eject_cdrom ($urpm->{cdrom_mounted}, "hal_umount", "hal_eject")
sub _mount_cdrom {
    my ($urpm, $blists, $ask_for_medium) = @_;

    my $retry;

    #- the directory given does not exist and may be accessible
    #- by mounting some other directory. Try to figure it out and mount
    #- everything that might be necessary.
    while (1) {

	if (my @blists = _mount_cdrom_and_check($urpm, $blists)) {
	    return @blists;
	}

	# ask for the first one, it's ok if the user insert another wanted cdrom
	my $medium = $blists->[0]{medium};

	$retry++ and $urpm->{log}("wrong CDROM, wanted $medium->{name}");

	    $ask_for_medium 
	      or $urpm->{fatal}(4, N("medium \"%s\" is not available", $medium->{name}));

	    _may_eject_cdrom($urpm);

	    $ask_for_medium->(remove_internal_name($medium->{name}))
	      or $urpm->{fatal}(4, N("medium \"%s\" is not available", $medium->{name}));
    }
}

#- side-effects: none
sub _filepath {
    my ($blist, $pkg) = @_;

    my $url = urpm::blist_pkg_to_url($blist, $pkg);
    my $filepath = file_from_local_medium($blist->{medium}, $url) or return;
    $filepath =~ m!/.*/! or return; #- is this really needed??
    $filepath;
}

#- side-effects: "copy-move-files"
sub _do_the_copy {
    my ($urpm, $filepath) = @_;

    #- we should assume a possibly buggy removable device...
    #- First, copy in partial cache, and if the package is still good,
    #- transfer it to the rpms cache.
    my $filename = basename($filepath);
    unlink "$urpm->{cachedir}/partial/$filename";
    $urpm->{log}("copying $filepath");
    copy_and_own($filepath, "$urpm->{cachedir}/partial/$filename") or return;
    my $f = urpm::get_pkgs::verify_partial_rpm_and_move($urpm, $urpm->{cachedir}, $filename) or return;
    $f;
}

#- side-effects: $sources
#-   + those of _do_the_copy: "copy-move-files"
sub _copy_from_cdrom__if_needed {
    my ($urpm, $blist, $sources, $want_copy) = @_;

	while (my ($i, $pkg) = each %{$blist->{pkgs}}) {
	    my $filepath = _filepath($blist, $pkg) or next;

	    if (-r $filepath) {
		$sources->{$i} = $want_copy ? _do_the_copy($urpm, $filepath) : $filepath;
	    } else {
		#- fallback to use other method for retrieving the file later.
		$urpm->{error}(N("unable to read rpm file [%s] from medium \"%s\"", $filepath, $blist->{medium}{name}));
	    }
	}
}

#- side-effects:
#-   + those of _may_eject_cdrom ($urpm->{cdrom_mounted}, "hal_umount", "hal_eject")
#-   + those of _mount_cdrom ($urpm->{cdrom_mounted}, $blists_url->[_]{medium}{mntpoint}, "hal_mount", "hal_eject")
#-   + those of _copy_from_cdrom__if_needed ("copy-move-files")
sub copy_packages_of_removable_media {
    my ($urpm, $blists, $sources, $o_ask_for_medium) = @_;

    my @blists = grep { urpm::is_cdrom_url($_->{medium}{url}) } @$blists;

    # we prompt for CDs used less first, since the last CD will be used directly
    @blists = sort { values(%{$a->{list}}) <=> values(%{$b->{list}}) } @blists;

    my $prev_medium;
    while (@blists) {
	$prev_medium and delete $prev_medium->{mntpoint};
	_may_eject_cdrom($urpm);

	my @blists_mounted = _mount_cdrom($urpm, \@blists, $o_ask_for_medium);
	@blists = difference2(\@blists, \@blists_mounted);
	foreach my $blist (@blists_mounted) {
	    _copy_from_cdrom__if_needed($urpm, $blist, $sources, @blists > 0);
	    $prev_medium = $blist->{medium};
        }
    }

    1;
}

1;