Print pretty message if no help is defined in hook

Thanks to Dave Reisner for having suggested!

Signed-off-by: Sebastien Luttringer <seblu@seblu.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/mkinitcpio b/mkinitcpio
index bd1a4c8..a9c75ed 100755
--- a/mkinitcpio
+++ b/mkinitcpio
@@ -123,6 +123,10 @@ while getopts ':c:k:sb:g:p:m:nvH:LMhS:t:z:' arg; do
                exit 1
            fi
            . "${INSTDIR}/${OPTARG}"
+           if [[ $(type -t help) != function ]]; then
+               error "No help for hook ${OPTARG}"
+               exit 1
+           fi
            echo "Help for hook '${OPTARG}':"
            help
            exit 0 ;;