#!/bin/bash
#This shellscript is named makezip.
#It creates a .zip file that holds the Xcode project
#named as the command line argument.

if [[ $# -ne 1 ]]
then
	echo $0: requires exactly 1 command line argument 1>&2
	exit 1
fi

if [[ ! -e $1 ]]
then
	echo $0: $1 does not exist 1>&2
	exit 2
fi

if [[ ! -d $1 ]]
then
	echo $0: $1 is not a directory 1>&2
	exit 3
fi

if [[ ! -r $1 ]]
then
	echo $0: no permission to read $1 1>&2
	exit 4
fi

if [[ -e $1.zip ]]
then
	echo $0: $1.zip already exists and I will not overwrite it 1>&2
	exit 5
fi

zip -qr $1.zip $1 -x $1'/build/*'
chmod 444 $1.zip		#r--r--r--
ls -l $1.zip
exit 0