maj-source

##### Majal's bash source functions #####

### COLORS ###

function echo-rb () {
  COLOR='\033[1;91m'
  NC='\033[0m'
  printf "${COLOR}$1${NC}\n"
}

function echo-r () {
  COLOR='\033[91m'
  NC='\033[0m'
  printf "${COLOR}$1${NC}\n"
}

function echo-gb () {
  COLOR='\033[1;92m'
  NC='\033[0m'
  printf "${COLOR}$1${NC}\n"
}

function echo-g () {
  COLOR='\033[92m'
  NC='\033[0m'
  printf "${COLOR}$1${NC}\n"
}

function echo-yb () {
  COLOR='\033[1;93m'
  NC='\033[0m'
  printf "${COLOR}$1${NC}\n"
}

function echo-y () {
  COLOR='\033[93m'
  NC='\033[0m'
  printf "${COLOR}$1${NC}\n"
}

function echo-bb () {
  COLOR='\033[1;94m'
  NC='\033[0m'
  printf "${COLOR}$1${NC}\n"
}

function echo-b () {
  COLOR='\033[94m'
  NC='\033[0m'
  printf "${COLOR}$1${NC}\n"
}


### FUNCTIONS ###
# errx
# runroot
# unique_script
# checkonline
# majbanner

function errx () {
  echo-r "$1"
  echo-y "Exiting with error code: $2"
  echo
  exit $2
}

function runroot () {
  [ $EUID -ne 0 ] && { echo; exec /usr/bin/sudo "$0" "$@"; }
}

function unique_script () {
  instancecount=$(pgrep -xc $(echo $(basename "${0}") | head -c 15))
  [ "${instancecount}" ] && [ "${instancecount}" -gt 1 ] && errx "$(basename ${0}): Multiple instances (${instancecount}) found, exiting..." 0
}

function maj-online () {
  ipaddr='8.8.8.8'
  $([ -z "`ping -c1 $ipaddr |& grep -o 'Network is unreachable'`" ] || exit 1; [ -z "`ping -c3 $ipaddr |& grep -o '100% packet loss'`" ] && exit 0 || exit 2)
}

function checkonline () {
  printf "Checking connectivity... "
  maj-online && echo-g "online." || errx "offline." 102
}

function majbanner () {
  echo
  echo -e "   Running Maj script: \e[1;93m`basename $0`\e[0m"
  echo-y "   _____  _____  _____"
  echo
}

### BANNER ###

[ $EUID -eq 0 ] || majbanner