BASH trap gist

bash_trap

#!/usr/bin/env bash
##
 # Trap Setup 
 #
 # This trap setup allows for a ERRNO_MSG to be provided in any function
 ## 
trap 'chute ${LINENO} $? "${ERRNO_MSG}"' ERR

function chute() {
  echo "[ERROR] Line: ${1} Code: ${2} Message: ${3}"
  exit 1
}

function test_trap() {
  if [ -n "$1" ]; then
    echo "Success"
    return 0
  fi

  ERRNO_MSG="$FUNCNAME() requires 1 argument"
  return 1
}

test_trap 3
test_trap

##
 # Output
 #
 # ./bash_trap
 # Success
 # [ERROR] Line: 25 Code: 1 Message: test_trap() requires 1 argument
 ##