CL < OptionParser to simplify setup more

lib/dotenv/cli.rb

@@ -4,45 +4,42 @@
 require "optparse"
 
 module Dotenv
-  # The CLI is a class responsible of handling all the command line interface
-  # logic.
-  class CLI
+  # The command line interface
+  class CLI < OptionParser
     attr_reader :argv, :filenames, :overload
 
     def initialize(argv = [])
       @argv = argv.dup
       @filenames = []
       @overload = false
 
-      @parser = OptionParser.new do |parser|
-        parser.banner = "Usage: dotenv [options]"
-        parser.separator ""
+      super "Usage: dotenv [options]"
+      separator ""
 
-        parser.on("-f FILES", Array, "List of env files to parse") do |list|
-          @filenames = list
-        end
+      on("-f FILES", Array, "List of env files to parse") do |list|
+        @filenames = list
+      end
 
-        parser.on("-o", "--overload", "override existing ENV variables") do
-          @overload = true
-        end
+      on("-o", "--overload", "override existing ENV variables") do
+        @overload = true
+      end
 
-        parser.on("-h", "--help", "Display help") do
-          puts parser
-          exit
-        end
+      on("-h", "--help", "Display help") do
+        puts self
+        exit
+      end
 
-        parser.on("-v", "--version", "Show version") do
-          puts "dotenv #{Dotenv::VERSION}"
-          exit
-        end
+      on("-v", "--version", "Show version") do
+        puts "dotenv #{Dotenv::VERSION}"
+        exit
+      end
 
-        parser.on("-t", "--template=FILE", "Create a template env file") do |file|
-          template = Dotenv::EnvTemplate.new(file)
-          template.create_template
-        end
+      on("-t", "--template=FILE", "Create a template env file") do |file|
+        template = Dotenv::EnvTemplate.new(file)
+        template.create_template
       end
 
-      @parser.order!(@argv)
+      order!(@argv)
     end
 
     def run