#!/usr/bin/env bash
#
# /usr/local/bin/shasum
#
#
# Description:
#   Dirty hack to get "shasum" (OS X style) onboard. Linux have "shaNNNsum",
#   so as a wrapper &/or to use with other scripts as a layer.
#

# What SHA? No option defaults to SHA1
#
# OS X manual:
#	-a, --algorithm    1 (default), 224, 256, 384, 512
#
if [[ $1 =~ ('-a'|'--algorithm') ]]; then
	_mode=$2;
	shift 2;
else
	_mode=1;
fi

# Just in case...
if [[ ! `type sha${_mode}sum 2>/dev/null` ]]; then
	echo "-$(basename $SHELL): sha${_mode}sum: command not found";
	exit;
fi

# Look for "-s"
case $1 in

	# OS X have an xtra "-s"
	-s)
		shift;
		sha${_mode}sum --status $@;
		;;

	# Normal use
	*)
		sha${_mode}sum $@
		;;
esac

# Bye-bye...
exit;