Simple script to update to latest zig master. Depends on curl, tar, xz and jq

update-zig

#!/bin/sh -e
case "$(uname -s)" in
	Linux) os=linux;;
	Darwin) os=macos;;
	FreeBSD) os=freebsd;;
	*) echo 'Unsupported OS' >&2; exit 1;;
esac
curl -sSL 'https://ziglang.org/download/index.json' |
jq -r ".master| .version, (.\"$(uname -m)-$os\" | .tarball, .shasum)" | {
	read -r version
	read -r url
	read -r shasum

	if command -v zig 2>&1 >/dev/null && [ "$version" = "$(zig version)" ]; then
		echo "Zig is up to date"
		exit 0
	fi

	tmpdir="$(mktemp -d)"
	cd "$tmpdir"

	curl -Lo _zig.tar.xz "$url"
	echo "$shasum _zig.tar.xz" | sha256sum -c
	tar xf _zig.tar.xz
	rm -rf "$HOME/.opt/zig"
	mkdir -p "$HOME/.opt"
	mv zig*/ "$HOME/.opt/zig"

	cd
	rm -rf "$tmpdir"
}