Add initial CLI class

bin/periodicity

@@ -1,7 +1,15 @@
 #!/usr/bin/env ruby
 
-require 'rails'
+$LOAD_PATH.unshift File.expand_path("../../lib", __FILE__)
-require File.expand_path("config/environment.rb")
-::Rails.application.eager_load!
 
-logger.info "Running in #{RUBY_DESCRIPTION}"
+require "periodicity/cli"
+
+begin
+  cli = Periodicity::CLI.instance
+  cli.run
+rescue => e
+  raise e if $DEBUG
+  STDERR.puts e.message
+  STDERR.puts e.backtrace.join("\n")
+  exit 1
+end

lib/periodicity.rb

@@ -7,4 +7,3 @@ require "periodicity/period.rb"
 require "periodicity/config.rb"
 require 'periodicity/extensions/active_job'
 require "periodicity/rails.rb" if defined?(::Rails::Engine)
-require "periodicity/cli.rb"

lib/periodicity/cli.rb

@@ -1,5 +1,23 @@
+require 'periodicity'
+
 module Periodicity
-  class Cli
+  class CLI
-    
+    include Singleton
+
+    def run
+      load_rails
+      print_banner
+    end
+
+    def print_banner
+      puts "Loading Periodicity #{Periodicity::VERSION}"
+      puts "Running in #{RUBY_DESCRIPTION}"
+    end
+
+    def load_rails
+      require 'rails'
+      require File.expand_path("config/environment.rb")
+      ::Rails.application.eager_load!
+    end
   end
 end

spec/cli_spec.rb

@@ -0,0 +1,13 @@
+require "spec_helper"
+require 'periodicity/cli'
+
+describe Periodicity::CLI do
+  let(:cli) { Periodicity::CLI.instance }
+
+  describe "#run" do
+    it "should try to initialize rails with #load_rails" do
+      expect(cli).to receive(:load_rails)
+      cli.run
+    end
+  end
+end