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#!/usr/bin/env sh

set -eu

target="${1:-}"

if [ "$target" != "help" ] && [ -z "${DISABLE_WARN_OUTSIDE_CONTAINER:-}" ]; then

(

echo

echo

echo "WARNING: you are not in a container."

echo "Use \"make -f docker.Makefile $target\" or set"

echo "DISABLE_WARN_OUTSIDE_CONTAINER=1 to disable this warning."

echo

echo "Press Ctrl+C now to abort."

echo

) >&2

sleep 10

fi