Ignore inexistent backup archives

scripts/lib/restoration.fish

@@ -23,9 +23,10 @@ end
 
 function restoreFiles
     if [ -n "$VALHALLA_BACKUP_DIR" ]
-        argparse -i "user=" "base-directory=" -- $argv
+        set -l path (getArchivePath $argv)
         set -l tarArgs
         set -l sudoArgs
+        argparse -i "user=" "base-directory=" -- $argv
 
         if [ -n "$_flag_base_directory" ]
             set -a tarArgs -C "$_flag_base_directory"
@@ -37,8 +38,8 @@ function restoreFiles
             set -a sudoArgs -u "$_flag_user"
         end
 
-        fetchArchive $argv | begin
-            sudo $sudoArgs tar $tarArgs -xvz
+        if runRestorationCommand test -f "$path"
+            runRestorationCommand cat "$path" | sudo $sudoArgs tar $tarArgs -xvz
         end
     end
 end
@@ -47,11 +48,6 @@ function createArchive -a path
     runRestorationCommand sh -c "tee $(string escape -- "$path") >/dev/null"
 end
 
-function fetchArchive
-    set -l path (getArchivePath $argv)
-    runRestorationCommand cat "$path"
-end
-
 function runRestorationCommand
     if [ -z "$VALHALLA_BACKUP_SERVER" ]
         $argv