remaster/src/func/chroot_sh

#!/bin/bash
#remaster lib
[ -d "<LIBDIR>" ] || { echo "LIBDIR not exist"; exit 1; }

#chroot_sh [chroot_dir] [command]
function chroot_sh() {
	#check chroot dir
	chroot_dir="$1"
	[ -d "$chroot_dir" ] || {
		echo "### ERROR ### chroot_sh: chroot directory not exist!"
		return 12
	}

	command="$2"

	[ -f "$chroot_dir/tmp/env.sh" ] || {
		#if not exist create environment skript
		cat "$chroot_dir/etc/environment" | grep -v "#" | grep "=" > "$chroot_dir/tmp/env"
		while read line; do echo export $line; done < "$chroot_dir/tmp/env" > "$chroot_dir/tmp/env.sh"
		chmod +x "$chroot_dir/tmp/env.sh" && rm "$chroot_dir/tmp/env"
	}

	chroot "$chroot_dir" /bin/bash --login -c ". /tmp/env.sh; $command"
}

#this func is standalone executable
[ -n "$1" ] && {
  chroot_sh $@
}