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package urpm::removable;
# $Id$
use urpm::msg;
use urpm::sys;
use urpm::util;
use urpm 'file_from_local_medium';
#- returns the removable device name if it corresponds to an iso image, '' otherwise
#-
#- side-effects: none
sub is_iso {
my ($removable_dev) = @_;
$removable_dev && $removable_dev =~ /\.iso$/i;
}
sub _file_or_synthesis_dir {
my ($medium, $o_url) = @_;
urpm::media::_valid_synthesis_dir($medium) && !$o_url ?
urpm::media::_synthesis_dir($medium) :
file_from_local_medium($medium, $o_url);
}
#- 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} = $mntpoint;
if (-r _file_or_synthesis_dir($blist->{medium}, $blist->{url})) {
$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' || $_->{fs} eq 'udf' } urpm::sys::read_mtab();
}
#- side-effects:
#- + those of _try_mounting_medium ($medium->{mntpoint})
sub try_mounting_medium {
my ($urpm, $medium, $o_url) = @_;
my $rc = _try_mounting_medium($urpm, $medium, $o_url);
$rc or $urpm->{error}(N("unable to access medium \"%s\".", $medium->{name}));
$rc;
}
#- side-effects:
#- + those of urpm::cdrom::try_mounting_cdrom ($urpm->{cdrom_mounted}, $medium->{mntpoint}, "hal_mount")
#- + those of _try_mounting_local ($urpm->{removable_mounted}, "mount")
sub _try_mounting_medium {
my ($urpm, $medium, $o_url) = @_;
if (urpm::is_cdrom_url($medium->{url})) {
urpm::cdrom::try_mounting_cdrom($urpm, [ { medium => $medium, url => $o_url } ]);
} else {
_try_mounting_local($urpm, $medium, $o_url);
}
}
#- side-effects:
#- + those of _try_mounting_using_fstab ($urpm->{removable_mounted}, "mount")
#- + those of _try_mounting_iso ($urpm->{removable_mounted}, "mount")
sub _try_mounting_local {
my ($urpm, $medium, $o_url) = @_;
my $dir = _file_or_synthesis_dir($medium, $o_url);
-e $dir and return 1;
$medium->{iso} ? _try_mounting_iso($urpm, $dir, $medium->{iso}) : _try_mounting_using_fstab($urpm, $dir);
-e $dir;
}
#- side-effects: $urpm->{removable_mounted}, "mount"
sub _try_mounting_iso {
my ($urpm, $dir, $iso) = @_;
#- note: for isos, we don't parse the fstab because it might not be declared in it.
#- so we try to remove suffixes from the dir name until the dir exists
my $mntpoint = urpm::sys::trim_until_d($dir);
if ($mntpoint) {
$urpm->{log}(N("mounting %s", $mntpoint));
#- to mount an iso image, grab the first loop device
my $loopdev = urpm::sys::first_free_loopdev();
sys_log("mount iso $mntpoint on $iso");
$loopdev and system('mount', $iso, $mntpoint, '-t', 'iso9660', '-o', "loop=$loopdev");
$urpm->{removable_mounted}{$mntpoint} = undef;
}
-e $mntpoint;
}
#- side-effects: $urpm->{removable_mounted}, "mount"
sub _try_mounting_using_fstab {
my ($urpm, $dir) = @_;
my $mntpoint = _non_mounted_mntpoint($dir);
if ($mntpoint) {
$urpm->{log}(N("mounting %s", $mntpoint));
sys_log("mount $mntpoint");
system("mount '$mntpoint' 2>/dev/null");
$urpm->{removable_mounted}{$mntpoint} = undef;
}
-e $dir;
}
#- side-effects: $urpm->{removable_mounted}, "umount"
sub try_umounting {
my ($urpm, $dir) = @_;
if (my $mntpoint = _mounted_mntpoint($dir)) {
$urpm->{log}(N("unmounting %s", $mntpoint));
sys_log("umount $mntpoint");
system("umount '$mntpoint' 2>/dev/null");
delete $urpm->{removable_mounted}{$mntpoint};
}
! -e $dir;
}
#- side-effects: none
sub _mounted_mntpoint {
my ($dir) = @_;
$dir = reduce_pathname($dir);
my $entry = urpm::sys::find_a_mntpoint($dir);
$entry->{mounted} && $entry->{mntpoint};
}
#- side-effects: none
sub _non_mounted_mntpoint {
my ($dir) = @_;
$dir = reduce_pathname($dir);
my $entry = urpm::sys::find_a_mntpoint($dir);
!$entry->{mounted} && $entry->{mntpoint};
}
#- side-effects: $urpm->{removable_mounted}
#- + those of try_umounting ($urpm->{removable_mounted}, umount)
sub try_umounting_removables {
my ($urpm) = @_;
foreach (keys %{$urpm->{removable_mounted}}) {
try_umounting($urpm, $_);
}
delete $urpm->{removable_mounted};
}
#- side-effects:
#- + those of try_mounting_non_cdrom ($urpm->{removable_mounted}, "mount")
sub try_mounting_non_cdroms {
my ($urpm, $list) = @_;
my $blists = create_blists($urpm->{media}, $list);
foreach my $blist (grep { urpm::file_from_local_url($_->{medium}{url}) } @$blists) {
try_mounting_medium($urpm, $blist->{medium}, $blist->{url});
}
}
#- side-effects: none
sub create_blists {
my ($media, $list) = @_;
#- make sure everything is correct on input...
$media or return;
@$media == @$list or return;
my $i;
[ map {
my $list = $list->[$i++];
my ($url) = values %$list; # first url
$url ? { medium => $_, list => $list, url => $url } : ();
} @$media ];
}
sub copy_packages_of_removable_media {
require urpm::cdrom;
&urpm::cdrom::copy_packages_of_removable_media;
}
1;
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