Generate paths to un-ignore deeply nested directories for .gitignore

unignore.sh

unignorepath() {
  local super="$(dirname "$1")"
  [[ "$super" =~ ^(.|/)$ ]] && return

  unignorepath "$super" # process higher levels first so as to print in order

  echo "$super/*"
  echo '!'"$1"
}

echo -e "\n# Ignore nested folders\n"

for arg in "$@"; do
  unignorepath "$arg"
done | sort | uniq

echo -e "\n# ------\n"