run magic lantern bash files to enfuse images

zml

#!/bin/bash
# Run magic lantern bash files

function run_scripts {
        local -i n=$1; shift
	local scripts="$@"

	while [[ $(echo $scripts | tr ' ' '\n' | wc -l) -gt $n ]]
	do
		local head=$(echo $(echo $scripts | tr ' ' '\n' | head -"$n"))
		for script in $head
		do
			./$script &
		done
		wait

		scripts=$(echo $scripts | tr ' ' '\n' | tail -n + `expr $n + 1`)
	done

	for script in $scripts
	do
		./$script &
	done
	wait

}

function no_align {
	local -i n=$1; shift
	local scripts="$@"

	for script in $scripts
	do
		local images=$(grep align_image_stack $script | sed 's/^align_image_stack -m -a HDR_AIS_[[:digit:]][[:digit:]]* //')
		local output=$(echo $images | awk '{ print $1; }' | sed 's/IMG/HDR/')
		local tmpfile=${script}.tmpbash
		echo '#!/bin/bash' >$tmpfile
		echo "enfuse --output=$output $images" >>$tmpfile
		chmod +x $tmpfile
	done

	local scripts=$(ls *.tmpbash)
	run_scripts $n $scripts
	rm $scripts
}

function main {
	local -i do_align_image_stack=1
	local -i ncpu=$(sysctl hw.ncpu | awk '{ print $2; }')

	while getopts "hnc:" opt
	do
		case "$opt" in
			h)
				echo "usage: $0 [options]"
				echo "options"
				echo "  -n no align image stack"
				echo "  -c cpu core override"
				exit
				;;
			n) do_align_image_stack=0 ;;
			c) ncpu=$OPTARG ;;
		esac
	done

	local shs=$(ls *.SH)
	chmod +x $(echo "$shs" | tr '\n' ' ')
	if [[ $do_align_image_stack -eq 1 ]]; then
		run_scripts $ncpu "$shs"
	else
		no_align `expr $ncpu / 2` "$shs"
	fi
}

main "$@"