#!/usr/bin/env bash
# Reject placeholder commit subjects. pre-commit passes the message file.
set -euo pipefail

message_file="$1"
subject=$(head -n 1 "$message_file")

if [ -z "${subject//[[:space:]]/}" ]; then
  echo "commit subject is empty" >&2
  exit 1
fi

case "${subject,,}" in
  misc|misc.|wip|wip.|update|updates|fix|fixes|change|changes|stuff|temp|tmp)
    echo "commit subject is a placeholder: '$subject'" >&2
    exit 1
    ;;
esac

exit 0