build

#!/bin/bash
########################################################################
# Build script for check_dht22
# Copyright (c) 2017 Frostbyte <frostbytegr@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
########################################################################

tagERROR='\e[0m'"[ "'\e[1;31m'"ERROR"'\e[0m'" ]"
tagOK='\e[0m'"[ "'\e[1;32m'"OK"'\e[0m'" ]"
tagGCC='\e[0m'"[ "'\e[1;33m'"GCC"'\e[0m'" ]"

echo "Checking dependencies.."
chkBinReqs=1

binUnzip=`which unzip`
binGcc=`which gcc`
binAwk=`which awk`

binaries=("unzip" "gcc" "awk")
binPaths=("$binUnzip" "$binGcc" "$binAwk")
binPkgs=("unzip" "gcc" "gawk")

for (( index=0; index<${#binaries[@]}; index++ )); do
	if [ -z ${binPaths[$index]} ]; then
		echo -e "$tagERROR Cannot find ${binaries[$index]}. (hint: sudo apt-get ${binPkgs[$index]})"
		chkBinReqs=0
	else
		echo -e "$tagOK Found ${binaries[$index]}: ${binPaths[$index]}"
	fi
done

if [[ $chkBinReqs == 0 ]]; then
	exit 1
fi

echo "Checking device.."
SoC=`grep -Ei "^Hardware\s+:\s+.*" /proc/cpuinfo | awk '{print $3}'`
case "$SoC" in
	BCM2708)
		deviceName="Raspberry Pi 1"
		deviceFamily="raspberry"
		;;
	BCM2709)
		deviceName="Raspberry Pi 2"
		deviceFamily="raspberry"
		;;
	BCM2835)
		deviceName="Raspberry Pi 3"
		deviceFamily="raspberry"
		;;
	Rockchip)
		deviceName="ASUS Tinker Board"
		deviceFamily="tinkerboard"
		;;
	*)
		echo -e "$tagERROR Unsupported device with CPU: $SoC"
		exit 1
esac
echo -e "$tagOK $deviceName detected."

pkgContents=$($binUnzip -Z -1 ThirdParty/wiringPi_$deviceFamily.zip)
if ! $binUnzip ThirdParty/wiringPi_$deviceFamily.zip -d ThirdParty >/dev/null 2>&1; then
	echo -e "$tagERROR Failed to extract the required device package."
	exit 1
fi

if [ ! -d "bin" ] && ! mkdir bin; then
	echo -e "$tagERROR Failed to create the bin folder."
	exit 1
fi

wiringPiFiles="piHiPri.c softPwm.c softTone.c wiringPi.c"
for file in $wiringPiFiles; do
	gccExtra=$gccExtra" ThirdParty/wiringPi/$file"
done

echo "Compiling.."
gccOutput=$($binGcc -o bin/check_dht22 check_dht22.c nagioshelper.c dht22.c$gccExtra -pthread -fdiagnostics-color=always 2>&1)
gccResult=$?

for file in $pkgContents; do
	rm -r ThirdParty/$file
done

if [[ $1 == "-v" ]]; then
	oIFS=$IFS
	IFS=$'\n'
	for line in $gccOutput; do
		echo -e "$tagGCC \c" && echo $line
	done
	IFS=$oIFS
fi

if [[ $gccResult == 0 ]]; then
	echo -e "$tagOK Compile successful. The executable can be found under: bin/check_dht22"
else
	echo -e "$tagERROR Compile failed."
fi
exit $gccResult