class Terraspace::CLI class CheckSetup extend Memoist # Terraspace requires at least this version of terraform REQUIRED_TERRAFORM_VERSION = "0.12" def initialize(options={}) @options = options end # Used for the CLI def run puts "Detected Terrspace version: #{Terraspace::VERSION}" if terraform_bin puts "Detected Terraform bin: #{terraform_bin}" puts "Detected #{terraform_version_message}" check_required_version! else puts "Terraform not installed. Unable to detect a terraform command. Please double check that terraform is installed." exit 1 end end def check_required_version! puts "Terraspace requires Terraform v#{REQUIRED_TERRAFORM_VERSION}.x and above" if ok? puts "You're all set!" else puts "The installed version of terraform may not work with terraspace." puts "Recommend using at least terraform v#{REQUIRED_TERRAFORM_VERSION}.x" puts "If you would like to bypass this check. Use TS_VERSION_CHECK=0" unless check_command? exit 1 unless ENV['TS_VERSION_CHECK'] == '0' end end def check_command? ARGV[0] == "check_setup" end def ok? version = terraform_version_message.sub(/.*v/,'') # => 0.12.24 unless version.match(/\d+\.\d+\.\d+/) # just parse did not find the version number puts "WARN: Unable to get the terraform version".color(:yellow) return true end major, minor, _ = version.split('.') required_major, required_minor = REQUIRED_TERRAFORM_VERSION.split('.') x = major.to_i >= required_major.to_i y = minor.to_i >= required_minor.to_i x && y end def terraform_bin bin_path = `which terraform 2>&1`.strip bin_path if $?.success? end memoize :terraform_bin # Sometimes Terraform shows the version info on the first line and sometimes on the bottom line. # Account for that by finding the line. # # $ terraform --version # Terraform v0.12.24 # # Your version of Terraform is out of date! The latest version # is 0.12.26. You can update by downloading from https://www.terraform.io/downloads.html # # Note: The -json option is only available in v0.13+ def terraform_version_message `terraform --version`.split("\n").find { |l| l =~ /^Terraform / }.strip end memoize :terraform_version_message class << self # Used as library call def check! setup = new return if setup.ok? # run meth designed for CLI and will puts out informative messages about installed version and exit 1 when version is not ok setup.run end end end end