#!/bin/bash
echo "SETISTART.sh version 03242k3-f"
echo "SYNTAX"
echo "setistart [start]{end][make]"
echo "	Where start is the number of the first seti to start"
echo "  and end is the number of the last seti to start"
echo "  'make' is optional:  The program will make seti directories"
echo "  numbered from START to END."
echo "    "
echo "NOTE--This program will act upon your home directory!"
echo "        "

#This sets the start and end params.
if [ -z $1 ]; then 
	START=1
else
	START=$1
fi
if [ -z $2 ]; then
	END=1
else
	END=$2
fi
echo "Start: $START"
echo "End:   $END"
VALID=`expr $END - $START`
if [ $VALID -lt 0 ]; then
	echo "You need to specify an ending value greater than or equal to"
	echo "the starting value."
	echo " 	For example:  setistart 1 2 is valid, while"
	echo "  setistart 3 2 is not."
	echo " NOTE: "
	echo " setistart -3 1, while valid according to the above rule will"
	echo " fail the test because -3 - 1 = -4 && -4 < 0."
	echo " but setistart -1 4 will probably work because 3 > 0."
	echo " 	Of course, why would anyone want a seti directory called 'seti-3'?"
	echo "Exiting with error 2."
	exit 2
fi


# This checks for presence of a third argument.  If there is one, the
# program will make seti directories and populate them from a setimaster 
# directory in the user's home directory.

#This makes directories
case "$3" in 
	#This removes directories very fast, very brutally.
	purge | PURGE)
	for i in ` seq $START 1 $END`; do 
		rm -r $HOME/seti$i
		echo "Removed seti$i...."
	done
	;;

	make | MAKE | M | m | create | CREATE | Create | Make)
	#This makes directories.
	echo "Changing to your home directory, $HOME."
	cd $HOME
	if [ -d $HOME/setimaster ]; then
		for i in `seq $START 1 $END`; do
			echo "----------------------------------------"
			echo "Trying to make $HOME/seti$i"
			echo "----------------------------------------"
			mkdir ./seti$i
			cp -Rf ./setimaster/* ./seti$i 

			#Had to use the above kludge.  The following rsync
			#command doesn't work in this script.  Maybe
			#I'll figure out why someday.

			#rsync -av ./setimaster/ ./seti$1 --progress --delete
		done		
	else
			echo "$HOME/setimaster does not exist."
			echo "You need to create it.  I don't do that"
			echo "because I'm just a bloody script!"
			echo "Exiting with code 10."
			exit 10
	fi
	;;

	*)
	# This just starts multiple instances of setiathome.
	for i in `seq $START 1 $END`; do
		echo "Starting seti in $i..."
		cd $HOME/seti$i
		cpujob ./setiathome &
		cd $HOME
	done
esac