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-rwxr-xr-xpost_update.sh5
1 files changed, 5 insertions, 0 deletions
diff --git a/post_update.sh b/post_update.sh
index c07d65ae..2b42dba9 100755
--- a/post_update.sh
+++ b/post_update.sh
@@ -1,8 +1,13 @@
#!/bin/bash
+# external-updater provides:
# $1 Path to the new version.
# $2 Path to the old version.
+if [ "$#" -lt 1 ]; then
+ echo 'need at least the path to the current version!'
+ exit 1
+fi
cd $1
set -e