Checks whether a given kernel config file has the options required to run Ubuntu Touch

check_ubuntu_touch_kernel_config

#!/bin/bash

FILE=$1

[ -f "$FILE" ] || {
	echo "Provide a config file as argument"
	exit
}

CONFIGS_ON="
CONFIG_SYSVIPC
CONFIG_NAMESPACES
CONFIG_UTS_NS
CONFIG_IPC_NS
CONFIG_USER_NS
CONFIG_PID_NS
CONFIG_NET_NS
CONFIG_DEVTMPFS
CONFIG_DEVTMPFS_MOUNT
CONFIG_DEVPTS_MULTIPLE_INSTANCES
CONFIG_FSNOTIFY
CONFIG_DNOTIFY
CONFIG_INOTIFY_USER
CONFIG_FANOTIFY
CONFIG_FANOTIFY_ACCESS_PERMISSIONS
CONFIG_SWAP
CONFIG_VT
CONFIG_VT_CONSOLE
CONFIG_SECURITY
CONFIG_SECURITYFS
CONFIG_DEFAULT_SECURITY_APPARMOR
CONFIG_SECURITY_APPARMOR
"

CONFIGS_OFF="
CONFIG_ANDROID_PARANOID_NETWORK
CONFIG_DEFAULT_SECURITY_DAC
"
CONFIGS_EQ="
CONFIG_DEFAULT_SECURITY=\"apparmor\"
"
ered() {
	echo -e "\033[31m" $@
}

egreen() {
	echo -e "\033[32m" $@
}

echo -e "\n\nChecking config file for Ubuntu Touch specific config options.\n\n"

errors=0
for c in $CONFIGS_ON $CONFIGS_OFF;do
	cnt=`grep -w -c $c $FILE`
	if [ $cnt -gt 1 ];then
		ered "$c appears more than once in the config file, fix this"
		errors=$((errors+1))
	fi

	if [ $cnt -eq 0 ];then
		ered "$c is neither enabled nor disabled in the config file"
		errors=$((errors+1))
	fi
done

for c in $CONFIGS_ON;do
	if grep "$c=y" $FILE >/dev/null;then
		egreen "$c is set"
	else
		ered "$c is not set, set it"
		errors=$((errors+1))
	fi
done

for c in $CONFIGS_EQ;do
	if grep "$c" $FILE >/dev/null;then
		egreen "$c is set"
	else
		ered "$c is not set, set it"
		errors=$((errors+1))
	fi
done

for c in $CONFIGS_OFF;do
	if grep "$c=y" $FILE >/dev/null;then
		ered "$c is set, unset it"
		errors=$((errors+1))
	else
		egreen "$c is not set"
	fi
done

echo -e "\n\nConfig file checked, found $errors errors.\n\n"