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-rwxr-xr-xlib/tools/upgrade.nom5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/tools/upgrade.nom b/lib/tools/upgrade.nom
index 1ef91b9..2c63411 100755
--- a/lib/tools/upgrade.nom
+++ b/lib/tools/upgrade.nom
@@ -15,6 +15,11 @@ use "commandline"
command line program with $args:
$inplace = ($args.i or $args.inplace)
$start_version = $args."upgrade-from"
+ if $start_version:
+ try:
+ use $start_version
+ ..if it fails:
+ fail "Could not find upgrade rules for \$start_version"
$version = ($args."upgrade-to" or (Nomsu version))
$test = ($args.t or $args.test)
for $filename in $args.extras: