my apex wrapper

#!/usr/bin/env ruby
# This script will override/interpolate variables in apex project.#{env}.json
# environment with their ec2 system manager parameter store counterparts
# by making a aws cli ssm call and overriding the environment variables by
# writing them to the command line, which takes precedent over the json file

# you symlink this script to your $PATH e.g /usr/local/bin/myapex -> scripts/myapex
# then alias the original apex to use it e.g. alias apex='myapex'
# so you can use apex normally and it will grab the interpolated values for you

# e.g apex deploy --env sb_sandbox
# e.g. apex infra plan --env sb_sandbox

require 'json'
require 'getoptlong'

original_args = ARGV.join(" ")

if ARGV[0] == "deploy"

  opts = GetoptLong.new(
    [ '--env', '-e', GetoptLong::REQUIRED_ARGUMENT ]
  )

  _, env = opts.get_option

  abort("--env is required for deploy") if env.nil?

  file = File.read("project.#{env}.json")
  data_hash = JSON.parse(file)
  environment = data_hash["environment"]

  profile = data_hash["profile"]
  abort("profile required in project.#{env}.json") if profile.nil?

  #go grab all the vars starting with ${ssm.}
  ssm_to_get = environment.map do |k,v| 
    v.scan(/^\$\{ssm\.(.*?)\}/)
  end.flatten

  cmd = "aws ssm get-parameters --names #{ssm_to_get.join(" ")} --output json --profile #{profile}"
  json_response = JSON.parse(`#{cmd}`)
  set_vars = {}
  #add those values to our big list
  json_response.dig("Parameters").each do |param_store|
    set_vars[param_store["Name"]] = param_store["Value"]
  end

  cmdline_format = set_vars.map {|k,v| "#{k}='#{v.gsub("'","\''")}'" }.join(" -s ")
  enhanced_cmd = "apex #{original_args} -s #{cmdline_format}"

  exec(enhanced_cmd)

else

  exec("apex #{original_args}")

end