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package MDV::Snapshot::Restore;
################################################################################
# Backup Configuration Tool #
# #
# Copyright (C) 2008 Mandriva #
# #
# Thierry Vignaud <tvignaud at mandriva dot com> #
# #
# This program is free software; you can redistribute it and/or modify #
# it under the terms of the GNU General Public License Version 2 as #
# published by the Free Software Foundation. #
# #
# 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 #
# along with this program; if not, write to the Free Software #
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. #
################################################################################
use strict;
use warnings;
use lib qw(/usr/lib/libDrakX);
use c;
use locale;
use MDV::Snapshot::Common;
use common;
use interactive;
use POSIX;
use run_program;
use fsedit;
use fs::type;
use fs;
use any;
sub get_fstab() {
my $all_hds = fsedit::get_hds();
fs::get_raw_hds('', $all_hds);
fs::get_info_from_fstab($all_hds);
[ fs::get::fstab($all_hds) ]; # $fstab
}
sub get_handle {
my ($part, $o_rw) = @_;
my $mntpnt = $part->{mntpoint};
# do not bother failed to mount with ro b/c already mounted:
$mntpnt ? { dir => $mntpnt } : any::inspect($part, $::prefix, $o_rw);
}
sub find_disks_with_rsnapshot {
my ($fstab) = @_;
my @true_fs =
grep { isTrueLocalFS($_) &&
!member($_->{mntpoint},
'/home', grep { $_ ne '/' } fs::type::directories_needed_to_boot());
} @$fstab;
log::l("looking for rsnapshot.conf on partitions " . join(' ', map { $_->{device} } @true_fs));
my @found;
foreach my $part (@true_fs) {
my $handle = get_handle($part);
next if !$handle;
next if ! -e "$handle->{dir}/etc/rsnapshot.conf";
if (my $f = common::release_file($handle->{dir})) {
my $h = common::parse_release_file($handle->{dir}, $f, $part);
$h->{name} = $h->{release};
push @found, $h;
}
}
return @found;
}
sub get_snapshots() {
my %backups =
map {
my $backup = $_;
my ($type, $_number) = m!$backup_directory/([^/]*)\.([0-9]*)!;
my $raw_date = [ stat($backup) ]->[-4];
my $date = POSIX::strftime($type eq 'hourly' ? "%c" : "%x", localtime($raw_date));
c::set_tagged_utf8($date);
$backup => { raw_date => $raw_date, date => $date, backup => $backup, type => $type };
} glob_("$backup_directory/*");
%backups;
}
sub configure {
my ($in) = @_;
my $backup;
my %backups = get_snapshots();
if (!%backups) {
$in->ask_warn(N("Error"), N("No backup found!"));
return;
}
my %i18n = (
'hourly' => N("Hourly"),
'daily' => N("Daily"),
'weekly' => N("Weekly"),
'monthly' => N("Monthly"),
);
$in->ask_from_(
{
title => N("Backup snapshots configuration"),
},
[
{ title => 1, label => N("Backup snapshots configuration") },
{ label => N("Please select the backup you want to restore.") },
{ val => \$backup, sort => 0, allow_empty_list => 1,
format => sub {
#-PO: eg: "Daily snapshot done on Sun Feb 4
N("%s snapshot done on %s", $i18n{$backups{$_[0]}{type}}, $backups{$_[0]}{date});
},
list => [ sort { $backups{$a}{raw_date} cmp $backups{$b}{raw_date} } keys %backups ],
},
]) or return;
my $_wait = $in->wait_message(N("Please wait"), N("Restoring backup in progress"));
my $backup_dir = $backups{$backup}{backup};
# FIXME: add a progress bar
foreach (glob_("$backup_dir/localhost/*")) {
my $dir = $_;
s!^$backup_dir/localhost!!;
log::l("would run system('rsync', '-vrlpt', $dir, $::prefix$_)\n") if $::testing;
# FIXME: should we use --delete?
run_program::run('rsync', '-vrlpt', $dir, "$::prefix$_") if !$::testing;
}
undef $_wait;
$in->ask_from_no_check(
{
title => N("Congratulations"),
messages => N("Congratulations, restoration is complete."),
ok => $::isStandalone || $::local_install ? N("Quit") : N("Reboot"),
}, []);
}
sub mount_all {
my ($in, $fstab) = @_;
local $::testing = 0;
my @errs;
foreach my $part (sort { $a->{mntpoint} cmp $b->{mntpoint} }
grep { $_->{mntpoint} && $_->{mntpoint} ne '/' && maybeFormatted($_) && $_->{device} ne 'none'
&& !member($_->{fs_type}, 'swap', 'nfs', if_($::isInstall, 'ntfs'));
}
@$fstab) {
eval { fs::mount::part($part) };
push @errs, $@ if $@;
}
$in->ask_warn(N("Warning"), N("mount failed: ") . join("\n", '', @errs)) if @errs;
}
sub main {
my ($in) = @_;
my ($system, $fstab, @found);
refresh:
$fstab = get_fstab();
@found = find_disks_with_rsnapshot($fstab);
$in->ask_from_({ interactive_help_id => 'configureX_chooser',
title => N("Restoring Backup"),
messages => join("\n",
N("Please select the partition of the system to restore."),
N("Do not forget to plug the USB disk that contains your backups."),
)
},
[
{ label => N("System to restore"), },
{
val => \$system, list => \@found, allow_empty_list => 1,
format => sub {
my $dev = $_[0];
N("\"%s\" (on %s)", $dev->{name}, $dev->{part}{device});
},
},
{
val => N("Refresh"), clicked => sub { goto refresh },
},
]);
my $handle = get_handle($system->{part}, 1);
local $::prefix = $handle->{dir};
# reinit paths according to temp mount point:
MDV::Snapshot::Common::init();
my $ch_fstab;
if (ref($handle) =~ /before_leaving/) {
$ch_fstab = [ fs::read_fstab($::prefix, '/etc/fstab') ];
mount_all($in, $ch_fstab);
}
configure($in);
# make sure everything is umounted:
if (ref($handle) =~ /before_leaving/) {
# reread for {real_mountpoint}:
$ch_fstab = [ fs::read_fstab($::prefix, '/etc/fstab') ];
eval { fs::mount::umount_all($ch_fstab) };
}
}
1;
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