#!/usr/bin/env bash INPUT_FILE=$1 START_LINE=${2:-`head -n1 $INPUT_FILE`} MAX=71 PATTERN="^.{0,$MAX}$" if ! [[ "$START_LINE" =~ $PATTERN ]]; then echo "'$START_LINE' is not a valid commit message, please see for examples:" echo "" echo " 50 characters lenght recommended, $MAX max" echo "" echo " [hive] Add numExecutors options" echo " [hive] Add numExecutors options (#1000)" echo " GH-1000 [hive] Add numExecutors options" echo "" echo " Examples of labels: [hive], [impala], [ui], [docs], [api]..." echo "" exit 1 fi