[home.git] / .bin / imgcrush

#!/bin/bash

usage() {
	cat <<EOF
Usage: imgcrush [options] <files>
EOF
	exit ${1:-0}
}

crush_jpg() {
	jpegoptim "$1"
}

crush_png() {
	# apngopt likes to corrupt images.
	pngcrush -e .png.new "$1"
	mv "${png}.new" "${png}"
}

crush() {
	case $1 in
	*.jpg|*.jpeg) crush_jpg "$1" ;;
	*.png)        crush_png "$1" ;;
	*) echo "${0##*/}: unsupported format: $1" >&2 ;;
	esac
}

main() {
	set -e

	while [[ $# -ne 0 ]] ; do
		case $1 in
		-h) usage ;;
		-*) usage 1 ;;
		*)  crush "$1"; shift ;;
		esac
	done
}
main "$@"
Commit	Line	Data
7fa03a9c MF	1	#!/bin/bash
	2
	3	usage() {
	4	cat <<EOF
	5	Usage: imgcrush [options] <files>
	6	EOF
	7	exit ${1:-0}
	8	}
	9
	10	crush_jpg() {
	11	jpegoptim "$1"
	12	}
	13
	14	crush_png() {
	15	# apngopt likes to corrupt images.
	16	pngcrush -e .png.new "$1"
	17	mv "${png}.new" "${png}"
	18	}
	19
	20	crush() {
	21	case $1 in
	22	.jpg\|.jpeg) crush_jpg "$1" ;;
	23	*.png) crush_png "$1" ;;
a91ff5e1	24	) echo "${0##/}: unsupported format: $1" >&2 ;;
7fa03a9c MF	25	esac
	26	}
	27
	28	main() {
	29	set -e
	30
	31	while [[ $# -ne 0 ]] ; do
	32	case $1 in
	33	-h) usage ;;
	34	-*) usage 1 ;;
a91ff5e1	35	*) crush "$1"; shift ;;
7fa03a9c MF	36	esac
	37	done
	38	}
	39	main "$@"