[pve-devel] [PATCH pve-storage 1/1] fix #6587: parse snapshot names beginning from the first underscore

[Shannon Sterz]

Since regular expressions are typically greedy the old regex here
matched as many underscores as it could (`\S` matches anything that is
not a whitespace, so also `_`). This lead to an issue where snapshots
that contained an underscore in their name would be truncated to only
contain the part of the name after the last underscore.

Use `[^\s_]` to match everything that is not a whitespace and not the
underscore character.

Signed-off-by: Shannon Sterz <s.sterz at proxmox.com>
---
 src/PVE/Storage/LVMPlugin.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PVE/Storage/LVMPlugin.pm b/src/PVE/Storage/LVMPlugin.pm
index 67fcfbd..c6586ac 100644
--- a/src/PVE/Storage/LVMPlugin.pm
+++ b/src/PVE/Storage/LVMPlugin.pm
@@ -472,7 +472,7 @@ my sub get_snap_name {
 my sub parse_snap_name {
     my ($name) = @_;
 
-    if ($name =~ m/^snap_\S+_(.*)\.qcow2$/) {
+    if ($name =~ m/^snap_[^\s_]+_(.*)\.qcow2$/) {
         return $1;
     }
 }
-- 
2.47.2