bin/copy-to-build-support: check if package list can be read.

1 files changed, 5 insertions, 0 deletions

diff --git a/bin/copy-to-build-support b/bin/copy-to-build-support
index addd45c..016d4c0 100755
--- a/bin/copy-to-build-support
+++ b/bin/copy-to-build-support
@@ -59,6 +59,11 @@ if [ "$#" -ne 1 ]; then
   usage
 fi
 
+if [ ! -r "$1" ]; then
+  >&2 printf 'Package-list "%s" is not readable.\n' "$1"
+  usage
+fi
+
 exec 9> "${sanity_check_lock_file}"
 verbose_flock -s ${wait_for_lock} 9