[pbs-devel] [PATCH proxmox-backup v2] fix: allow datastore creation in directory with lost+found directory

[Gabriel Goller]

When creating a datastore without the "reuse-datastore" option and the
datastore contains a `lost+found` directory (which is quite common), the
creation fails. Add `lost+found` to the ignore list.

Reported here: https://forum.proxmox.com/threads/bug-when-adding-new-storage-task-error-datastore-path-is-not-empty.157629/#post-721733

Fixes: 6e101ff75777 ("fix #5439: allow to reuse existing datastore")
Signed-off-by: Gabriel Goller <g.goller at proxmox.com>
---

v2, thanks @Fiona:
 - exact match with == instead of `.starts_with`

 src/api2/config/datastore.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/api2/config/datastore.rs b/src/api2/config/datastore.rs
index 374c302fcf28..9c36cb312a99 100644
--- a/src/api2/config/datastore.rs
+++ b/src/api2/config/datastore.rs
@@ -89,7 +89,10 @@ pub(crate) fn do_create_datastore(
         if let Ok(dir) = std::fs::read_dir(&path) {
             for file in dir {
                 let name = file?.file_name();
-                if !name.to_str().map_or(false, |name| name.starts_with('.')) {
+                if !name
+                    .to_str()
+                    .map_or(false, |name| name.starts_with('.') || name == "lost+found")
+                {
                     bail!("datastore path is not empty");
                 }
             }
-- 
2.39.5