[pve-devel] [PATCH storage v4 1/4] fix #3972: Remove the .notes file when a backup is deleted

[Daniel Tschlatscher <d.tschlatscher@proxmox.com>]

When a VM or Container backup was deleted, the .notes file was not
removed, therefore, over time the dump folder would get polluted with
notes for backups that no longer existed. As backup names contain a
timestamp and as the notes cannot be reused because of this, I think
it is safe to just delete them just like we do with the .log file.

Furthermore, I sourced the deletion of the log and notes file into a
new function called "archive_auxiliaries_remove". Additionally, the
archive_info object now returns one more field containing the name of
the notes file. The test cases have to be adapted to expect this new
value as the package will not compile otherwise.

Signed-off-by: Daniel Tschlatscher <d.tschlatscher@proxmox.com>

Reviewed-by: Fabian Ebner <f.ebner@proxmox.com>
---
Changes from v3
* removed unused variables $logfn and $notesfn

 PVE/API2/Storage/Content.pm |  5 ++---
 PVE/Storage.pm              | 20 ++++++++++++++------
 test/archive_info_test.pm   |  6 ++++++
 3 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/PVE/API2/Storage/Content.pm b/PVE/API2/Storage/Content.pm
index 8ff858d..41b577c 100644
--- a/PVE/API2/Storage/Content.pm
+++ b/PVE/API2/Storage/Content.pm
@@ -456,9 +456,8 @@ __PACKAGE__->register_method ({
 	    print "Removed volume '$volid'\n";
 	    if ($vtype eq 'backup'
 		&& $path =~ /(.*\/vzdump-\w+-\d+-\d{4}_\d{2}_\d{2}-\d{2}_\d{2}_\d{2})[^\/]+$/) {
-		my $logpath = "$1.log";
-		# try to cleanup our backup log file too, if still existing, #318
-		unlink($logpath) if -e $logpath;
+		# Remove log file #318 and notes file #3972 if they still exist
+		PVE::Storage::archive_auxiliaries_remove($path);
 	    }
 	};
 
diff --git a/PVE/Storage.pm b/PVE/Storage.pm
index 72458cf..70dd663 100755
--- a/PVE/Storage.pm
+++ b/PVE/Storage.pm
@@ -1566,6 +1566,7 @@ sub archive_info {
 
 	if ($volid =~ /^(vzdump-${type}-([1-9][0-9]{2,8})-(\d{4})_(\d{2})_(\d{2})-(\d{2})_(\d{2})_(\d{2}))\.${extension}$/) {
 	    $info->{logfilename} = "$1.log";
+	    $info->{notesfilename} = "$filename.notes";
 	    $info->{vmid} = int($2);
 	    $info->{ctime} = timelocal($8, $7, $6, $5, $4 - 1, $3);
 	    $info->{is_std_name} = 1;
@@ -1585,16 +1586,23 @@ sub archive_remove {
     die "cannot remove protected archive '$archive_path'\n"
 	if -e protection_file_path($archive_path);
 
+    unlink $archive_path or die "removing archive $archive_path failed: $!\n";
+
+    archive_auxiliaries_remove($archive_path);
+}
+
+sub archive_auxiliaries_remove {
+    my ($archive_path) = @_;
+
     my $dirname = dirname($archive_path);
     my $archive_info = eval { archive_info($archive_path) } // {};
-    my $logfn = $archive_info->{logfilename};
 
-    unlink $archive_path or die "removing archive $archive_path failed: $!\n";
+    for my $type (qw(log notes)) {
+	my $filename = $archive_info->{"${type}filename"} or next;
+	my $path = "$dirname/$filename";
 
-    if (defined($logfn)) {
-	my $logpath = "$dirname/$logfn";
-	if (-e $logpath) {
-	    unlink $logpath or warn "removing log file $logpath failed: $!\n";
+	if (-e $path) {
+	    unlink $path or warn "Removing $type file failed: $!\n";
 	}
     }
 }
diff --git a/test/archive_info_test.pm b/test/archive_info_test.pm
index 7e84b6a..bbc0e6f 100644
--- a/test/archive_info_test.pm
+++ b/test/archive_info_test.pm
@@ -24,6 +24,7 @@ my $tests = [
 	expected    => {
 	    'filename'     => "vzdump-lxc-$vmid-3070_01_01-00_00_00.tgz",
 	    'logfilename'  => "vzdump-lxc-$vmid-3070_01_01-00_00_00.log",
+	    'notesfilename'=> "vzdump-lxc-$vmid-3070_01_01-00_00_00.tgz.notes",
 	    'type'         => 'lxc',
 	    'format'       => 'tar',
 	    'decompressor' => ['tar', '-z'],
@@ -39,6 +40,7 @@ my $tests = [
 	expected    => {
 	    'filename'     => "vzdump-lxc-$vmid-1970_01_01-02_00_30.tgz",
 	    'logfilename'  => "vzdump-lxc-$vmid-1970_01_01-02_00_30.log",
+	    'notesfilename'=> "vzdump-lxc-$vmid-1970_01_01-02_00_30.tgz.notes",
 	    'type'         => 'lxc',
 	    'format'       => 'tar',
 	    'decompressor' => ['tar', '-z'],
@@ -54,6 +56,7 @@ my $tests = [
 	expected    => {
 	    'filename'     => "vzdump-lxc-$vmid-2020_03_30-21_39_30.tgz",
 	    'logfilename'  => "vzdump-lxc-$vmid-2020_03_30-21_39_30.log",
+	    'notesfilename'=> "vzdump-lxc-$vmid-2020_03_30-21_39_30.tgz.notes",
 	    'type'         => 'lxc',
 	    'format'       => 'tar',
 	    'decompressor' => ['tar', '-z'],
@@ -69,6 +72,7 @@ my $tests = [
 	expected    => {
 	    'filename'     => "vzdump-openvz-$vmid-2020_03_30-21_39_30.tgz",
 	    'logfilename'  => "vzdump-openvz-$vmid-2020_03_30-21_39_30.log",
+	    'notesfilename'=> "vzdump-openvz-$vmid-2020_03_30-21_39_30.tgz.notes",
 	    'type'         => 'openvz',
 	    'format'       => 'tar',
 	    'decompressor' => ['tar', '-z'],
@@ -84,6 +88,7 @@ my $tests = [
 	expected    => {
 	    'filename'     => "vzdump-qemu-$vmid-2020_03_30-21_39_30.tgz",
 	    'logfilename'  => "vzdump-qemu-$vmid-2020_03_30-21_39_30.log",
+	    'notesfilename'=> "vzdump-qemu-$vmid-2020_03_30-21_39_30.tgz.notes",
 	    'type'         => 'qemu',
 	    'format'       => 'tar',
 	    'decompressor' => ['tar', '-z'],
@@ -138,6 +143,7 @@ for my $virt (sort keys %$bkp_suffix) {
 	    expected    => {
 		'filename'     => "vzdump-$virt-$vmid-2020_03_30-21_12_40.$format.$suffix",
 		'logfilename'  => "vzdump-$virt-$vmid-2020_03_30-21_12_40.log",
+		'notesfilename'=> "vzdump-$virt-$vmid-2020_03_30-21_12_40.$format.$suffix.notes",
 		'type'         => "$virt",
 		'format'       => "$format",
 		'decompressor' => $decomp->{$suffix},
-- 
2.30.2