#!/usr/bin/env bash
set -e

version=0.4.9b5
tarball=sgrep-$version-ubuntu-16.04.tgz
sha256=9e57323fd0eb9133b7ff301a6be8361c073c3bfe6e6959ca1b622e5abc176e03
tarball_url=https://github.com/returntocorp/sgrep/releases/download/v$version/$tarball

check_version () {
    out="$(sgrep-lint --version 2>/dev/null)" && [ "$out" = "$version" ]
}

if ! check_version; then
    tmpdir="$(mktemp -d)"
    trap 'rm -r "$tmpdir"' EXIT
    cd "$tmpdir"
    wget -nv "$tarball_url"
    sha256sum -c <<< "$sha256  $tarball"
    tar -xzf "$tarball" -C /usr/local/lib/
    ln -sf /usr/local/lib/sgrep-lint-files/sgrep-lint /usr/local/bin/sgrep-lint
    ln -sf /usr/local/lib/sgrep-lint-files/sgrep /usr/local/bin/sgrep
    check_version
fi
