X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=backup%2Fbackuplib.pl;h=1163b5a0012be6b0ba157c55aa6ca4bc4a56e236;hb=6548c05b2f401d9d712acde8d0aff31388c0db70;hp=ba1c50be01467958ded1c00873c1753870c5466a;hpb=17fb3a3831ca812a3ad384f4eec3b977432facd9;p=chiark-utils.git

diff --git a/backup/backuplib.pl b/backup/backuplib.pl
index ba1c50b..1163b5a 100644
--- a/backup/backuplib.pl
+++ b/backup/backuplib.pl
@@ -23,6 +23,8 @@
 
 require IO::File;
 
+$nice='nice ' if !defined $nice;
+
 sub printdate () {
     print scalar(localtime),"\n";
 }
@@ -51,6 +53,29 @@ sub startprocess ($$$) {
     exec $c; die "$c: $!";
 }
 
+sub rewind_raw () {
+    system "mt -f $tape rewind"; $? and die $?;
+}
+
+sub readtapeid_raw () {
+    open T, ">>TAPEID" or die $!; close T;
+    unlink 'TAPEID' or die $!;
+    rewind_raw();
+    system "mt -f $tape setblk $blocksizebytes"; $? and die $?;
+    system "dd if=$tape bs=${blocksize}b count=10 ".
+	   "| tar -b$blocksize -vvxf - TAPEID";
+}
+
+sub writetapeid ($$) {
+    open T, ">TAPEID" or die $!;
+    print T "$_[0]\n$_[1]\n" or die $!;
+    close T or die $!;
+
+    system "tar -b$blocksize -vvcf TAPEID.tar TAPEID"; $? and die $?;
+    system "dd if=TAPEID.tar of=$ntape bs=${blocksize}b count=10";
+    $? and die $?;
+}
+
 sub endprocesses () {
     while (keys %processes) {
 	$p= waitpid(-1,0) or die "wait: $!";
@@ -117,22 +142,47 @@ sub readfsys ($) {
 # Parse a line from a filesystem definition file. We expect the line
 # to be in $tf.
 sub parsefsys () {
-    if ($tf =~ m,^(/\S*)\s+(\w+)$,) {
-        # Line of form '/file/system	dumptype'
+    my ($dopts,$dopt);
+    if ($tf =~ m#^(/\S*)\s+(\w+)([,=0-9a-z]*)$#) {
+        # Line of form '/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";
 	$rstr= '';
-    } elsif ($tf =~ m,^(/\S*)\s+(\w+)\s+(\w+)$,) {
-        # Line of form '/file/system dumptype prefix'
-        # (used for remote backups, I think)
+    } elsif ($tf =~ m#^(/\S*)\s+(\w+)([,=0-9a-z]*)\s+(\w+)$#) {
+        # Line of form '/file/system dumptype[,options] prefix'
+        # (used for remote backups)
 	$atf= $1;
 	$tm= $2;
-	$prefix= $3;
+	$dopts= $3;
+	$prefix= $4;
 	defined($prefix{$prefix}) or die "prefix $prefix in $tf ?\n";
 	$rstr= $prefix{$prefix}.' ';
+    } else {
+	die "fsys $tf ?";
+    }
+    undef %dopt;
+    foreach $dopt (split /\,/,$dopts) {
+	if (grep { $dopt eq $_ } qw(gz)) {
+	    $dopt{$dopt}= 'y';
+	} elsif ($dopt =~ m/\=/ && grep { $` eq $_ } qw(gz)) {
+	    $dopt{$`}= $';
+	} elsif (length $dopt) {
+	    die "unknown option $dopt (in $dopts $tf)";
+	}
+    }
+
+    if ($dopt{'gz'} eq 'y') {
+	$gz= '1';
+    } elsif ($dopt{'gz'} =~ m/^\d$/) {
+	$gz= $dopt{'gz'};
+    } elsif (defined $dopt{'gz'}) {
+	die "$tf bad gz";
+    } else {
+	$gz= 0;
     }
 }