#/bin/bash

set -euo pipefail

NAME=watchlogs

function build() {
	local -r name=${1:-main}

	export GOOS=$2
	export GOARCH=$3

	local artifact=$name-$GOOS-$GOARCH

	if [ $GOOS == windows ]
	then artifact=$artifact.exe
	fi

	go build \
	-o $artifact \
	-buildmode pie \
	-ldflags "\
		-w -s \
		-X main.Version=$(git describe --tags | head -1) \
		-X main.Build=$(date -u -Iseconds)"

	shasum -a 256 ./$artifact > $artifact.sha256sum
}

function main() {
	local -r name=watchlogs
	local -r targets="linux amd64
		linux arm64
		darwin amd64
		darwin arm64
		windows amd64"

	local -a target
	while read line
	do
		read -a target <<< $line
		echo "Building ${target[@]}..." >&2
		build $NAME ${target[0]} ${target[1]}
	done < <(echo "$targets")
}


main $@