pre-push hook for ensuring .env.dist matches .env

pre-push

#!/usr/bin/ruby

unless(File.exist?('.env'))
  # We're not using a .env, so we don't need to check anything
  exit 0
end

unless(File.exist?('.env.dist'))
  puts 'Cannot commit while you have a .env and not a .env.dist. Please create a descriptive .env.dist.'
  exit 1
end

shouldHaveKeys = File.open('.env').map{|line| line.split('=',2)[0]}
haveKeys = File.open('.env.dist').map{|line| line.split('=',2)[0]}

discrepency = shouldHaveKeys - haveKeys

if (discrepency.length > 0)
  puts "Some keys are present in .env but not in .env.dist. Please update .env.dist.\nKeys: #{discrepency.join(', ')}"
  exit 1
end

exit 0