1 files changed, 142 insertions, 0 deletions
diff --git a/railties/lib/rails/vendor/thor-0.11.6/lib/thor/parser/options.rb b/railties/lib/rails/vendor/thor-0.11.6/lib/thor/parser/options.rb
new file mode 100644
index 0000000000..75092308b5
--- /dev/null
+++ b/railties/lib/rails/vendor/thor-0.11.6/lib/thor/parser/options.rb
@@ -0,0 +1,142 @@
+class Thor
+  # This is a modified version of Daniel Berger's Getopt::Long class, licensed
+  # under Ruby's license.
+  #
+  class Options < Arguments #:nodoc:
+    LONG_RE     = /^(--\w+[-\w+]*)$/
+    SHORT_RE    = /^(-[a-z])$/i
+    EQ_RE       = /^(--\w+[-\w+]*|-[a-z])=(.*)$/i
+    SHORT_SQ_RE = /^-([a-z]{2,})$/i # Allow either -x -v or -xv style for single char args
+    SHORT_NUM   = /^(-[a-z])#{NUMERIC}$/i
+
+    # Receives a hash and makes it switches.
+    #
+    def self.to_switches(options)
+      options.map do |key, value|
+        case value
+          when true
+            "--#{key}"
+          when Array
+            "--#{key} #{value.map{ |v| v.inspect }.join(' ')}"
+          when Hash
+            "--#{key} #{value.map{ |k,v| "#{k}:#{v}" }.join(' ')}"
+          when nil, false
+            ""
+          else
+            "--#{key} #{value.inspect}"
+        end
+      end.join(" ")
+    end
+
+    # Takes a hash of Thor::Option objects.
+    #
+    def initialize(options={})
+      options = options.values
+      super(options)
+      @shorts, @switches = {}, {}
+
+      options.each do |option|
+        @switches[option.switch_name] = option
+
+        option.aliases.each do |short|
+          @shorts[short.to_s] ||= option.switch_name
+        end
+      end
+    end
+
+    def parse(args)
+      @pile = args.dup
+
+      while peek
+        if current_is_switch?
+          case shift
+            when SHORT_SQ_RE
+              unshift($1.split('').map { |f| "-#{f}" })
+              next
+            when EQ_RE, SHORT_NUM
+              unshift($2)
+              switch = $1
+            when LONG_RE, SHORT_RE
+              switch = $1
+          end
+
+          switch = normalize_switch(switch)
+          next unless option = switch_option(switch)
+
+          @assigns[option.human_name] = parse_peek(switch, option)
+        else
+          shift
+        end
+      end
+
+      check_requirement!
+      @assigns
+    end
+
+    protected
+
+      # Returns true if the current value in peek is a registered switch.
+      #
+      def current_is_switch?
+        case peek
+          when LONG_RE, SHORT_RE, EQ_RE, SHORT_NUM
+            switch?($1)
+          when SHORT_SQ_RE
+            $1.split('').any? { |f| switch?("-#{f}") }
+        end
+      end
+
+      def switch?(arg)
+        switch_option(arg) || @shorts.key?(arg)
+      end
+
+      def switch_option(arg)
+        if match = no_or_skip?(arg)
+          @switches[arg] || @switches["--#{match}"]
+        else
+          @switches[arg]
+        end
+      end
+
+      def no_or_skip?(arg)
+        arg =~ /^--(no|skip)-([-\w]+)$/
+        $2
+      end
+
+      # Check if the given argument is actually a shortcut.
+      #
+      def normalize_switch(arg)
+        @shorts.key?(arg) ? @shorts[arg] : arg
+      end
+
+      # Parse boolean values which can be given as --foo=true, --foo or --no-foo.
+      #
+      def parse_boolean(switch)
+        if current_is_value?
+          ["true", "TRUE", "t", "T", true].include?(shift)
+        else
+          @switches.key?(switch) || !no_or_skip?(switch)
+        end
+      end
+
+      # Parse the value at the peek analyzing if it requires an input or not.
+      #
+      def parse_peek(switch, option)
+        unless current_is_value?
+          if option.boolean?
+            # No problem for boolean types
+          elsif no_or_skip?(switch)
+            return nil # User set value to nil
+          elsif option.string? && !option.required?
+            return option.human_name # Return the option name
+          else
+            raise MalformattedArgumentError, "no value provided for option '#{switch}'"
+          end
+        end
+
+        @non_assigned_required.delete(option)
+        send(:"parse_#{option.type}", switch)
+      end
+
+  end
+end