pre-commit

#!/usr/bin/env bash
#set -x
LOG_PREFIX="[Pre-commit]"

log() {
	echo "$LOG_PREFIX $1"
}

OUTPUT="/tmp/detekt-$(date +%s)"
GIT_DIFF_FILES=$(git diff --diff-filter=d --name-only HEAD --line-prefix=`git rev-parse --show-toplevel`/)
if [ -z "$GIT_DIFF_FILES" ] 
	then 
		exit 0
fi
log "Running detekt check..."
log "Found changes in next files:"
log "$GIT_DIFF_FILES"
RULES_FILE=$(find ./config/detekt/ -name "config.yml" | head -n 1)
DIFF_FORMATTED=$(echo $GIT_DIFF_FILES | tr ' ' '\n' | tr '\n' ',' )
if [ -z "$RULES_FILE" ]
        then
		log "Using default detekt config"
		EXEC_COMMAND='detekt --includes $DIFF_FORMATTED > $OUTPUT'
	else
		log "Using project config file"
                EXEC_COMMAND='detekt --includes $DIFF_FORMATTED > $OUTPUT -c $RULES_FILE'
fi
eval $EXEC_COMMAND
EXIT_CODE=$?
if [ $EXIT_CODE -eq 3 ] 
	then 
		log "Some config error, using default detekt config"
		EXEC_COMMAND='detekt --includes $DIFF_FORMATTED > $OUTPUT'
		eval $EXEC_COMMAND
		EXIT_CODE=$?
fi
if [ $EXIT_CODE -ne 0 ]; then
  exec < /dev/tty
  log "***********************************************"
  log "                 Detekt failed                 "
  log "***********************************************"
  cat $OUTPUT
  while true; do
  	read -p "$LOG_PREFIX Do you wish to stop and fix issues before commit?(y or n)" yn
  	if [ "$yn" = "" ]; then
    		yn='Y'
  	fi
  	case $yn in
      		[Yy] ) 
			log "commit stopped"
			rm $OUTPUT
			exit $EXIT_CODE;;
     		[Nn] ) break;;
      		* ) log "Please answer y or n for yes or no.";;
  	esac
  done
fi
rm $OUTPUT