mirrors
/
sanoid
mirror of https://github.com/jimsalterjrs/sanoid.git
2
0
Fork 0
Code Issues Projects Releases Wiki Activity

implemented fallback for listing snapshots on solaris

This commit is contained in:
Christoph Klaffl 2020-01-13 19:25:22 +01:00
parent 45d0898523
commit 30fb5aabeb
No known key found for this signature in database
GPG Key ID: 8FC1D76EED4970D2
1 changed files with 85 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

86
syncoid
View File

@ -1459,7 +1459,10 @@ sub getsnaps() {
if ($debug) { print "DEBUG: getting list of snapshots on $fs using $getsnapcmd...\n"; }
open FH, $getsnapcmd;
my @rawsnaps = <FH>;
close FH or die "CRITICAL ERROR: snapshots couldn't be listed for $fs (exit code $?)";
close FH or do {
# fallback (solaris for example doesn't support the -t option)
return getsnapsfallback($type,$rhost,$fs,$isroot,%snaps);
};
# this is a little obnoxious. get guid,creation returns guid,creation on two separate lines
# as though each were an entirely separate get command.
@ -1510,6 +1513,87 @@ sub getsnaps() {
return %snaps;
}
sub getsnapsfallback() {
# fallback (solaris for example doesn't support the -t option)
my ($type,$rhost,$fs,$isroot,%snaps) = @_;
my $mysudocmd;
my $fsescaped = escapeshellparam($fs);
if ($isroot) { $mysudocmd = ''; } else { $mysudocmd = $sudocmd; }
if ($rhost ne '') {
$rhost = "$sshcmd $rhost";
# double escaping needed
$fsescaped = escapeshellparam($fsescaped);
}
my $getsnapcmd = "$rhost $mysudocmd $zfscmd get -Hpd 1 type,guid,creation $fsescaped |";
if ($debug) { print "DEBUG: FALLBACK, getting list of snapshots on $fs using $getsnapcmd...\n"; }
open FH, $getsnapcmd;
my @rawsnaps = <FH>;
close FH or die "CRITICAL ERROR: snapshots couldn't be listed for $fs (exit code $?)";
my %creationtimes=();
my $state = 0;
foreach my $line (@rawsnaps) {
if ($state < 0) {
$state++;
next;
}
if ($state eq 0) {
if ($line !~ /\Q$fs\E\@.*type\s*snapshot/) {
# skip non snapshot type object
$state = -2;
next;
}
} elsif ($state eq 1) {
if ($line !~ /\Q$fs\E\@.*guid/) {
die "CRITICAL ERROR: snapshots couldn't be listed for $fs (guid parser error)";
}
chomp $line;
my $guid = $line;
$guid =~ s/^.*\tguid\t*(\d*).*/$1/;
my $snap = $line;
$snap =~ s/^.*\@(.*)\tguid.*$/$1/;
$snaps{$type}{$snap}{'guid'}=$guid;
} elsif ($state eq 2) {
if ($line !~ /\Q$fs\E\@.*creation/) {
die "CRITICAL ERROR: snapshots couldn't be listed for $fs (creation parser error)";
}
chomp $line;
my $creation = $line;
$creation =~ s/^.*\tcreation\t*(\d*).*/$1/;
my $snap = $line;
$snap =~ s/^.*\@(.*)\tcreation.*$/$1/;
# the accuracy of the creation timestamp is only for a second, but
# snapshots in the same second are highly likely. The list command
# has an ordered output so we append another three digit running number
# to the creation timestamp and make sure those are ordered correctly
# for snapshot with the same creation timestamp
my $counter = 0;
my $creationsuffix;
while ($counter < 999) {
$creationsuffix = sprintf("%s%03d", $creation, $counter);
if (!defined $creationtimes{$creationsuffix}) {
$creationtimes{$creationsuffix} = 1;
last;
}
$counter += 1;
}
$snaps{$type}{$snap}{'creation'}=$creationsuffix;
}
$state++;
}
return %snaps;
}
sub getbookmarks() {
my ($rhost,$fs,$isroot,%bookmarks) = @_;
my $mysudocmd;