#!/usr/bin/env bash
#
# Usage:
#   maint/forbid-absolute-shebangs
#
# Requires that scripts all start with `#! /usr/bin/env`,
# not a path to a specific interpreter.

set -euo pipefail

# this include stanza is automatically maintained by update-shell-includes
common_dir=$(realpath "$0")
common_dir=$(dirname "$common_dir")
# shellcheck source=maint/common/bash-utils.sh
. "$common_dir"/bash-utils.sh

reject_all_arguments

if git grep -rnI '^#\!/' :/ | grep -v '#\!/usr/bin/env'
then
	echo "Absolute shebangs found, replace them with \"#!/usr/bin/env\""
	exit 1
else
	echo "Everything seems ok"
	exit 0
fi