gitamselect

#!/bin/bash
#
# gitamselect

shopt -s extglob

declare usagestr=$(
cat <<EOF

$(basename $0) dir min max

Description:
    Selectively applies numbered patch files in dir from the min up to
    and including the max.
    This script assumes that patch files will be named with a leading
    number separated from the rest of the filename by a hyphen, and
    ending with ".patch" e.g.

        0003-this-is-a-patch-file.patch

Arguments:
    dir - directory containing the patch files
    min - lowest number patch
    max - highest number patch
\0
EOF
)

usage() {
	echo -e "$usagestr"
	exit 1
}

main() {
	declare dir="$1"
	declare -i min=$2
	declare -i max=$3
	declare p
	declare pat
	declare -i num

	[ "$1" == "-h" ] && usage

	for p in $(ls -1 $dir/*.patch); do
		pat=$(basename $p)

		# convert the number to base 10
		if [ "${pat:0:1}" != "0" ]; then
			pat=$(echo "$pat" | cut -d'-' -f2-)
		fi
		printf -v num "%d" $((10#$(echo $pat | cut -d'-' -f1)))

		([ $num -ge $min ] && [ $num -le $max ]) && git am "$p"
	done
}

main $@

exit 0