For building release archives + Markdown output.

gorelease

#!/usr/bin/env bash
#
# Usage:
#
# ~ $ gorelease linux:windows 386:amd64 github.com/rjeczalik/bin/cmd/gobin
# ~/src/github.com/rjeczalik/bin/cmd/gobin $ gorelease linux:windows 386:amd64

die() {
	if [ ! -z "${*}" ]; then
		echo "gocross: ${*}" 1>&2
	fi
	exit 1
}

die_usage() {
	echo "usage: gorelease <GOOSes> <GOARCHs> [<import_path=\$PWD>]" 1>&2
	exit 1
}

if [ ${#} -ne 3 ] && [ ${#} -ne 2 ]; then
	die_usage
fi

os=$(echo ${1} | tr ':' ' ')
arch=$(echo ${2} | tr ':' ' ')
pkg=${3}

if [ ${#} -eq 2 ]; then
	# will fail on nested src/ - $GOPATH lookup?
	pkg=${PWD#*/src/}
fi

name=$(basename ${pkg})

for goos in ${os}; do
	for goarch in ${arch}; do
		case "${goos}" in
		darwin)
			output=${name}-${goos}_${goarch}.zip
			echo -n "* \`${output}\` "
			GOOS="${goos}" GOARCH="${goarch}" go build "${pkg}"
			rm -f "${output}"
			zip -9 "${output}" "${name}" >/dev/null
			rm -f "${name}"
			echo SHA1 \`$(sha1sum "${output}" | cut -d' ' -f1)\`
			;;
		windows)
			output=${name}-${goos}_${goarch}.zip
			echo -n "* \`${output}\` "
			GOOS="${goos}" GOARCH="${goarch}" go build "${pkg}"
			rm -f "${output}"
			zip -9 "${output}" "${name}.exe" >/dev/null
			rm -f "${name}.exe"
			echo SHA1 \`$(sha1sum "${output}" | cut -d' ' -f1)\`
			;;
		"")
			;;
		*)
			output=${name}-${goos}_${goarch}.bz2
			echo -n "* \`${output}\` "
			GOOS="${goos}" GOARCH="${goarch}" go build "${pkg}"
			rm -f "${name}.bz2"
			bzip2 -9 "${name}"
			mv "${name}.bz2" "${output}"
			chmod -x "${output}"
			echo SHA1 \`$(sha1sum "${output}" | cut -d' ' -f1)\`
			;;
		esac
	done
done