#!/bin/bash

uid=$(id -u $USER)

if [ ${uid} -lt 100 ]
then
	echo "Usage of system users isn't allowed (${uid})."
	exit 1
fi

if [[ ! $(pwd) == /home/* ]]
then
	echo "Only run it from any '/home/*' folder, not '$(pwd)'."
	exit 2
fi

USERNAME=$(whoami | sed -e 's/@.*$//')
HOME=/home/$USERNAME
HOSTNAME=oe

# Determine parallel build capabilities.
parallel_build="$(nproc >&1)"

if [ ${parallel_build} -gt 20 ]
then
	BB_NUMBER_THREADS=20
	PARALLEL_MAKE="-j 20"
else
	BB_NUMBER_THREADS=${parallel_build}
	PARALLEL_MAKE="-j "${parallel_build}
fi

BB_ENV_EXTRAWHITE="BB_NUMBER_THREADS PARALLEL_MAKE BB_NUMBER_PARSE_THREADS"

export BB_NUMBER_THREADS
export PARALLEL_MAKE
export BB_ENV_EXTRAWHITE
export HOME
export HOSTNAME

exec "$@"