hack/install_golangci.sh: check env vars
Also make it executable and `set -eo pipefail`.
-#!/bin/bash -e
+#!/bin/bash
+
+if [ -z "$VERSION" ]; then
+ echo \$VERSION is empty
+ exit 1
+fi
+
+if [ -z "$GOBIN" ]; then
+ echo \$GOBIN is empty
+ exit 1
+fi
+
$GOBIN/golangci-lint --version | grep $VERSION
if [ $? -ne 0 ]; then
+ set -e
curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $GOBIN v$VERSION
fi
