# other UN*X-compatible machines, as used on chiark.greenend.org.uk.
#
# chiark backup is:
-# Copyright (C) 1997-1998,2000-2001 Ian Jackson <ian@chiark.greenend.org.uk>
+# Copyright (C) 1997-1998,2000-2001,2007
+# Ian Jackson <ian@chiark.greenend.org.uk>
# Copyright (C) 1999 Peter Maydell <pmaydell@chiark.greenend.org.uk>
#
# This is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
-# Foundation; either version 2, or (at your option) any later version.
+# Foundation; either version 3, or (at your option) any later version.
#
# This is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# 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.
+# with this program; if not, consult the Free Software Foundation's
+# website at www.fsf.org, or the GNU Project website at www.gnu.org.
require IO::File;
+$nice='nice ' if !defined $nice;
+
sub printdate () {
print scalar(localtime),"\n";
}
# used to implement the funky pipeline stuff.
sub startprocess ($$$) {
my ($i,$o,$c) = @_;
- print LOG " $c\n" or die $!;
- print " $c\n" or die $!;
+ pboth(" $c\n");
defined($p= fork) or die $!;
if ($p) { $processes{$p}= $c; return; }
open STDIN,"$i" or die "$c stdin $i: $!";
}
sub rewind_raw () {
- system "mt -f $tape rewind"; $? and die $?;
+ runsystem("mt -f $tape rewind");
}
sub readtapeid_raw () {
"| tar -b$blocksize -vvxf - TAPEID";
}
+sub runsystem ($) {
+ pboth(" $_[0]\n");
+ system $_[0];
+ $? and die $?;
+}
+
+sub pboth ($) {
+ my ($str) = @_;
+ print LOG $str or die $!;
+ print $str or die $!;
+}
+
+sub nexttapefile ($) {
+ my ($what) = @_;
+ $currenttapefilenumber++;
+ $currenttapefilename= $what;
+ pboth(sprintf "writing tape file #%d (mt fsf %d): %s\n",
+ $currenttapefilenumber, $currenttapefilenumber-1, $what);
+}
+
sub writetapeid ($$) {
open T, ">TAPEID" or die $!;
print T "$_[0]\n$_[1]\n" or die $!;
close T or die $!;
+ $currenttapefilenumber= 0;
+ nexttapefile('TAPEID');
+
system "tar -b$blocksize -vvcf TAPEID.tar TAPEID"; $? and die $?;
system "dd if=TAPEID.tar of=$ntape bs=${blocksize}b count=10";
$? and die $?;
delete $processes{$p};
$? && die "error: command gave code $?: $c\n";
}
- print LOG " ok\n" or die $!;
- print " ok\n" or die $!;
+ pboth(" ok\n");
}
sub killprocesses {
$prefix{$1}= $2;
} elsif (m/^prefix\-df\s+(\w+)\s+(\S.*\S)$/) {
$prefixdf{$1}= $2;
+ } elsif (m/^snap(?:\=(\w+))?\s+(\w+)\s+(\w+)$/) {
+ push @excldir,$1;
} elsif (m/^excludedir\s+(\S.*\S)$/) {
push @excldir,$1;
} elsif (m/^exclude\s+(\S.*\S)$/) {
# to be in $tf.
sub parsefsys () {
my ($dopts,$dopt);
- if ($tf =~ m#^(/\S*)\s+(\w+)([,0-9a-z]+)$#) {
- # Line of form '/file/system dumptype[,options]'
+ if ($tf =~ m#^(/\S*)\s+(\w+)([,=0-9a-z]*)$#) {
+ # Line of form '[/device:]/file/system dumptype[,options]'
$atf= $1;
$tm= $2;
$dopts= $3;
$prefix= '<local>';
- stat $atf or die "stat $atf: $!";
- -d _ or die "not a dir: $atf";
+ $pcstr= '';
$rstr= '';
- } elsif ($tf =~ m#^(/\S*)\s+(\w+)([,0-9a-z]+)\s+(\w+)$#) {
- # Line of form '/file/system dumptype[,options] prefix'
+ } elsif ($tf =~ m#^(/\S*)\s+(\w+)([,=0-9a-z]*)\s+(\w+)$#) {
+ # Line of form '[/device:]/file/system dumptype[,options] prefix'
# (used for remote backups)
$atf= $1;
$tm= $2;
$dopts= $3;
$prefix= $4;
+ $pcstr= "$prefix:";
defined($prefix{$prefix}) or die "prefix $prefix in $tf ?\n";
$rstr= $prefix{$prefix}.' ';
} else {
die "fsys $tf ?";
}
+
+ $fsidstr= $pcstr.$atf;
+ $fsidstr =~ s/[,+]/+$&/g;
+ $fsidstr =~ s#/#,#g;
+ $fsidfile= "/var/lib/chiark-backup/incstamp,$fsidstr";
+
+ $dev = $atf =~ s,^(.*)\:,, ? $1 : '';
+
+ if (!length $pcstr) {
+ stat $atf or die "stat $atf: $!";
+ -d _ or die "not a dir: $atf";
+ }
+
undef %dopt;
foreach $dopt (split /\,/,$dopts) {
- if (grep { $dopt eq $_ } qw(gz)) {
+ if (grep { $dopt eq $_ } qw(gz noinc)) {
$dopt{$dopt}= 'y';
- } elsif ($dopt =~ m/\=/ && grep { $` eq $_ } qw(gz)) {
+ } elsif (grep { $dopt eq $_ } qw(snap)) {
+ $dopt{$dopt}= $dopt;
+ } elsif ($dopt =~ m/\=/ && grep { $` eq $_ } qw(gz snap)) {
$dopt{$`}= $';
+ } elsif (length $dopt) {
+ die "unknown option $dopt (in $dopts $tf)";
+ }
+ }
+
+ my ($gzo);
+ foreach $gzo (qw(gz gzi)) {
+ if ($dopt{$gzo} eq 'y') {
+ $$gzo= '1';
+ } elsif ($dopt{$gzo} =~ m/^\d$/) {
+ $$gzo= $dopt{$gzo};
+ } elsif (defined $dopt{$gzo}) {
+ die "$tf bad $gzo";
} else {
- die "unknown option $dopt";
+ $$gzo= '';
}
}
+
+ if (length $dopt{'snap'}) {
+ length $dev or die "$pcstr:$atf no device but needed for snap";
+ }
+}
+
+sub execute ($) {
+ pboth(" $_[0]\n");
+ system $_[0]; $? and die "$_[0] $?";
+}
+
+sub prepfsys () {
+ $dev_print= $dev;
+ $atf_print= $atf;
+
+ if (length $dopt{'snap'}) {
+
+ system('snap-drop'); $? and die $?;
+
+ $snapscripts= '/etc/chiark-backup/snap';
+ $snapbase= "$rstr $snapscripts/$dopt{'snap'}";
+ $snapargs= "/var/lib/chiark-backup";
+
+ $snapsnap= "$snapbase snap $snapargs $dev $atf";
+ $snapdrop= "$snapbase drop $snapargs";
+
+ open SD, ">snap-drop.new" or die $!;
+ print SD $snapdrop,"\n" or die $!;
+ close SD or die $!;
+ rename "snap-drop.new","snap-drop" or die $!;
+
+ execute($snapsnap);
+
+ $dev_nosnap= $dev;
+ $atf_nosnap= $atf;
+ $dev= "/var/lib/chiark-backup/snap-device";
+ $atf= "/var/lib/chiark-backup/snap-mount";
+ }
+}
+
+sub finfsys () {
+ if (length $dopt{'snap'}) {
+ system('snap-drop'); $? and die $?;
+ }
}
sub openlog () {
~ian / chiark-utils.git / blobdiff