#!/usr/bin/bash -ef

log_error() {
  echo >&2 "Error: $1"
}

log_info() {
  echo >&2 "Info: $1"
}

if [ "$#" -eq 0 ]; then
    log_error "Missing the required path to the directory with trusted GPG keys."
    exit 1
elif [ "$#" -ge 2 ]; then
    log_error "Expected only one argument, received $#. Possibly unescaped whitespaces? '$*'"
    exit 1
fi

if [ ! -e "$1" ]; then
    log_error "The $1 directory does not exist."
    exit 1
fi

error_flag=0
IFS=$'\n'
# shellcheck disable=SC2044
for key_file in $(find -L "$1" -type f); do
    log_info "Importing GPG keys from: $key_file"
    rpm --import "$key_file" || {
      error_flag=2
      log_error "Unable to import GPG keys from: $key_file"
    }
done

exit $error_flag