From 1b7d5b5f7f99df8ea9ed7635659abd40248b77b3 Mon Sep 17 00:00:00 2001
From: pancake <pancake@nopcode.org>
Date: Tue, 23 Oct 2018 22:22:38 +0200
Subject: [PATCH] Downgrade credentials when building with sudo ##build

---
 sys/build.sh   | 11 ++++++-----
 sys/install.sh | 11 +++++++++++
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/sys/build.sh b/sys/build.sh
index d45c7ec967..08dd02c897 100755
--- a/sys/build.sh
+++ b/sys/build.sh
@@ -38,11 +38,12 @@ BuildJobsThrottler(){
 	echo "So, the build will run on $MAKE_JOBS job(s)."
 }
 
-# Identify current platform
-GetPlatform
-
-# Define number of parallel jobs as function of resources and platform 
-BuildJobsThrottler
+if [ "`uname`" = Linux ]; then
+	# Identify current platform
+	GetPlatform
+	# Define number of parallel jobs depending on ncpus and memory
+	BuildJobsThrottler
+fi
 
 if [ -z "${MAKE}" ]; then
 	MAKE=make
diff --git a/sys/install.sh b/sys/install.sh
index 024d243c88..b35d3f8c41 100755
--- a/sys/install.sh
+++ b/sys/install.sh
@@ -4,6 +4,17 @@ MAKE=make
 gmake --help >/dev/null 2>&1
 [ $? = 0 ] && MAKE=gmake
 
+# if owner of sys/install.sh != uid && uid == 0 { exec sudo -u id -A $SUDO_UID sys/install.sh $* }
+
+if [ "${UID}" = 0 ]; then
+	echo "[XX] Do not run this script as root!"
+	if [ -n "${SUDO_USER}" ]; then
+		echo "[--] Downgrading credentials to ${SUDO_USER}"
+		exec sudo -u "${SUDO_USER}" sys/install.sh $*
+	fi
+	exit 1
+fi
+
 ${MAKE} --help 2>&1 | grep -q gnu
 if [ $? != 0 ]; then
 	echo "You need GNU Make to build me"