[PATCH v1 proxmox-backup 1/3] api: backup: don't verify total file size for incremental backups

[Robert Obkircher <r.obkircher@proxmox.com>]

This fixes incremental qemu backups, where the submitted value is the
upload size instead of the total size.

Avoiding the check is preferable over breaking backwards compatability
of the API because it was only relevant for detecting potential bugs.

Signed-off-by: Robert Obkircher <r.obkircher@proxmox.com>
---
 src/api2/backup/environment.rs | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/api2/backup/environment.rs b/src/api2/backup/environment.rs
index 657daa41..ab623f1f 100644
--- a/src/api2/backup/environment.rs
+++ b/src/api2/backup/environment.rs
@@ -632,14 +632,14 @@ impl BackupEnvironment {
                     );
                 }
             }
-        }
 
-        let writer_size = data.index.size();
-        if size != writer_size {
-            bail!(
-                "fixed writer '{}' close failed - unexpected size ({size} != {writer_size})",
-                data.name,
-            );
+            let writer_size = data.index.size();
+            if size != writer_size {
+                bail!(
+                    "fixed writer '{}' close failed - unexpected size ({size} != {writer_size})",
+                    data.name,
+                );
+            }
         }
 
         let expected_csum = data.index.close()?;
-- 
2.47.3