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package MGA::DrakISO::Utils;
use strict;
use MDK::Common;
use common;
use fs;
use run_program;
use IPC::Open3;
use IO::Select;
use Exporter;
our @ISA = qw(Exporter);
our @EXPORT = qw(directory_usage run_ mount_system_fs umount_external_fs);
sub directory_usage {
my ($dir, $o_apparent) = @_;
my $apparent = $o_apparent && "--apparent-size";
first(split /\s/, `du -s -B 1 $apparent $dir`);
}
#- expand only if the pattern contains '*'
#- and matches dot characters (like shell dotglob)
sub glob__ {
my ($pattern) = @_;
$pattern =~ /\*/ ? glob_($pattern) : $pattern;
}
sub run_ {
my $options = ref $_[0] eq 'HASH' ? shift @_ : {};
my @cmd = @_;
$options->{timeout} ||= 'never';
if (arch() !~ /^arm/) {
my $targetarch = delete $options->{targetarch};
unshift @cmd, 'setarch', $targetarch if $targetarch;
}
print STDERR "running " . (exists $options->{root} && "(in chroot) ") . join(' ', @cmd) . "\n";
run_program::raw($options, @cmd);
}
sub device_allocate_file {
my ($device, $size) = @_;
run_('dd', "of=$device", 'count=0', 'bs=1', "seek=" . removeXiBSuffix($size));
}
#- format $device as type $type
# FIXME: use fs::format
sub device_mkfs {
my ($device, $type, $o_label, $o_inode_size) = @_;
if ($type eq 'vfat') {
run_('mkfs.vfat', if_(defined $o_label, '-n', $o_label), $device);
} elsif (member($type, 'ext2', 'ext3', 'ext4')) {
run_("mkfs.$type", "-m", 0,
if_(defined $o_label, '-L', $o_label),
if_($o_inode_size, '-I', $o_inode_size),
if_(!-b $device, '-F'),
$device);
} elsif ($type eq 'swap') {
run_('mkswap', if_(defined $o_label, '-L', $o_label), $device);
} else {
die "unable to mkfs for unsupported media type $type\n";
}
}
sub mount_system_fs {
my ($live) = @_;
run_('mount', '-t', 'devtmpfs', '/dev', $live->get_system_root . '/dev');
run_('mount', '-t', 'proc', '/proc', $live->get_system_root . '/proc');
run_('mount', '-t', 'sysfs', '/sys', $live->get_system_root . '/sys');
}
sub umount_external_fs {
my ($live) = @_;
my $system_root = Cwd::abs_path($live->get_system_root);
my @mounts = grep { $_ =~ $system_root } split("\n", cat_('/proc/mounts'));
foreach (reverse(@mounts)) {
my @field = split(' ' , $_);
fs::mount::umount($field[1]);
}
}
1;
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