From eadc99ddf22037c49eea304a15a32066b935a001 Mon Sep 17 00:00:00 2001
From: Corey Powell <mistdragon100@gmail.com>
Date: Mon, 16 May 2016 10:12:21 -0500
Subject: [PATCH] Handle prmd init with no arguments

---
 lib/prmd.rb              |  1 +
 lib/prmd/cli/base.rb     |  8 ++++----
 lib/prmd/cli/generate.rb |  7 ++++++-
 lib/prmd/utils.rb        | 19 +++++++++++++++++++
 4 files changed, 30 insertions(+), 5 deletions(-)
 create mode 100644 lib/prmd/utils.rb

diff --git a/lib/prmd.rb b/lib/prmd.rb
index 3719b03..f699701 100644
--- a/lib/prmd.rb
+++ b/lib/prmd.rb
@@ -3,6 +3,7 @@
 require_relative 'prmd/commands'
 require_relative 'prmd/schema'
 require_relative 'prmd/link'
+require_relative 'prmd/utils'
 require_relative 'prmd/template'
 require_relative 'prmd/url_generator'
 require_relative 'prmd/hash_helpers'
diff --git a/lib/prmd/cli/base.rb b/lib/prmd/cli/base.rb
index 3c1c864..045dab0 100644
--- a/lib/prmd/cli/base.rb
+++ b/lib/prmd/cli/base.rb
@@ -33,8 +33,8 @@ def make_parser(options = {})
       # @param [Array<String>] argv
       # @return [Array<String>] remaining arguments
       # @private
-      def execute_parser(parser, argv)
-        parser.parse(argv)
+      def execute_parser(argv)
+        @parser.parse(argv)
       end
 
       # Set the given key and value in the given options Hash.
@@ -66,10 +66,10 @@ def set_option(options, key, value)
       # @return [Hash<Symbol, Object>] parsed options
       def parse_options(argv, options = {})
         opts = {}
-        parser = make_parser(options) do |key, value|
+        @parser = make_parser(options) do |key, value|
           set_option(opts, key, value)
         end
-        argv = execute_parser(parser, argv)
+        argv = execute_parser(argv)
         opts[:argv] = argv
         opts
       end
diff --git a/lib/prmd/cli/generate.rb b/lib/prmd/cli/generate.rb
index 2944ed7..ba53e80 100644
--- a/lib/prmd/cli/generate.rb
+++ b/lib/prmd/cli/generate.rb
@@ -1,5 +1,6 @@
 require_relative 'base'
 require_relative '../commands/init'
+require_relative '../utils'
 
 module Prmd
   module CLI
@@ -40,7 +41,11 @@ def self.make_parser(options = {})
       # @return (see Prmd::CLI::Base#execute)
       def self.execute(options = {})
         name = options.fetch(:argv).first
-        write_result Prmd.init(name, options), options
+        if Prmd::Utils.blank?(name)
+          abort @parser
+        else
+          write_result Prmd.init(name, options), options
+        end
       end
     end
   end
diff --git a/lib/prmd/utils.rb b/lib/prmd/utils.rb
new file mode 100644
index 0000000..bb5f68f
--- /dev/null
+++ b/lib/prmd/utils.rb
@@ -0,0 +1,19 @@
+module Prmd
+  # For any tid bits, or core extension methods, without the "core" extension
+  module Utils
+    # For checking if the string contains only spaces
+    BLANK_REGEX = /\A\s+\z/
+
+    def self.blank?(obj)
+      if obj.nil?
+        true
+      elsif obj.is_a?(String)
+        obj.empty? || !!(obj =~ BLANK_REGEX)
+      elsif obj.respond_to?(:empty?)
+        obj.empty?
+      else
+        false
+      end
+    end
+  end
+end