A script to temporarily install jq for use in Bash scripting

get-jq.sh

#!/usr/bin/env bash

getjq::prep(){
  TEMP_DIR="$(mktemp -d jq-download.XXXXXXXXXX)"
  cd $TEMP_DIR
  if [ $? -ne 0 ]; then
    echo "$0: Cannot change directory to $TEMP_DIR, exiting..."
    exit 1
  fi
}

getjq::makeExecutable(){
 chmod +x doctor-jq
}

getjq::projectRoot(){
 cd - > /dev/null
}

getjq::download(){
  # NEED TO DO -- DYNAMICALLY GET URL BASED ON OS 
  jqURL="https://github.com/stedolan/jq/releases/download/jq-1.6/jq-osx-amd64"
  curl -sL -o doctor-jq "$jqURL"
}


getjq::install(){
  getjq::prep
  getjq::download
  getjq::makeExecutable
  getjq::projectRoot
}


getjq::cleanup() {
  rm -rf jq-download.*
}

getjq::version(){
  ./"$TEMP_DIR"/doctor-jq --version
}

getjq::init(){
  getjq::cleanup
  getjq::install
  getjq::version
  getjq::cleanup
}

getjq::init