Adds missing variables from .env_sample to .env when switching branches

post-checkout

#!/usr/bin/env ruby

begin
  env = File.read(File.expand_path('~/projects/workable/.env'))
  env_sample = File.read(File.expand_path('~/projects/workable/.env_sample'))

  env_keys = env
             .split("\n")
             .reject { |e| e.start_with?('#') }
             .map { |e| e.split('=')[0] }

  sample_map = env_sample
               .split("\n")
               .reject { |e| e.start_with?('#') }
               .map { |e| arr = e.split('='); [arr[0].strip, (arr[1] || '').strip] }

  sample_hash = Hash[*sample_map.flatten]
  sample_keys = sample_hash.map { |arr| arr[0] }

  missing_keys = sample_keys - env_keys

  puts 'Found new keys in env_sample' if missing_keys.any?

  File.open(File.expand_path('~/projects/workable/.env'), 'a') do |file|
    missing_keys.each do |key|
      puts "Adding #{key}"
      file.write "#{key}=#{sample_hash[key]}\n"
    end
  end

  `sort -o ~/projects/workable/.env ~/projects/workable/.env`
rescue => e
  puts e.message
end