speed up options parsing (only require framework when running)

tools/exploit/pattern_create.rb

@@ -8,10 +8,6 @@ end
 $LOAD_PATH.unshift(File.expand_path(File.join(File.dirname(msfbase), '..', '..', 'lib')))
 $LOAD_PATH.unshift(ENV['MSF_LOCAL_LIB']) if ENV['MSF_LOCAL_LIB']
 
-require 'msfenv'
-require 'msf/core'
-require 'msf/base'
-require 'rex/text'
 require 'optparse'
 
 module PatternCreate
@@ -40,10 +36,15 @@ module PatternCreate
 
       if options.empty?
         raise OptionParser::MissingArgument, 'No options set, try -h for usage'
-      elsif options[:length].blank? && options[:sets]
+      elsif options[:length].nil? && options[:sets]
         raise OptionParser::MissingArgument, '-l <length> is required'
       end
 
+      require 'msfenv'
+      require 'msf/core'
+      require 'msf/base'
+      require 'rex/text'
+
       options[:sets] = nil unless options[:sets]
 
       options

tools/exploit/pattern_offset.rb

@@ -8,10 +8,6 @@ end
 $LOAD_PATH.unshift(File.expand_path(File.join(File.dirname(msfbase), '..', '..', 'lib')))
 $LOAD_PATH.unshift(ENV['MSF_LOCAL_LIB']) if ENV['MSF_LOCAL_LIB']
 
-require 'msfenv'
-require 'msf/core'
-require 'msf/base'
-require 'rex/text'
 require 'optparse'
 
 module PatternOffset
@@ -19,7 +15,7 @@ module PatternOffset
     def self.parse(args)
       options = {}
       parser = OptionParser.new do |opt|
-        opt.banner = "Usage: #{__FILE__} [options]\nExample: #{__FILE__} -q Aa3A|0x39634138|0xFFFF4138\n[*] Exact match at offset 9"
+        opt.banner = "Usage: #{__FILE__} [options]\nExample: #{__FILE__} -q Aa3A\n[*] Exact match at offset 9"
         opt.separator ''
         opt.separator 'Options:'
 
@@ -45,9 +41,9 @@ module PatternOffset
 
       if options.empty?
         raise OptionParser::MissingArgument, 'No options set, try -h for usage'
-      elsif options[:query].blank?
+      elsif options[:query].nil?
         raise OptionParser::MissingArgument, '-q <query> is required'
-      elsif options[:length].blank? && options[:sets]
+      elsif options[:length].nil? && options[:sets]
         raise OptionParser::MissingArgument, '-l <length> is required'
       end
 
@@ -69,6 +65,11 @@ module PatternOffset
     end
 
     def run
+      require 'msfenv'
+      require 'msf/core'
+      require 'msf/base'
+      require 'rex/text'
+
       query = (@opts[:query])
 
       if query.length >= 8 && query.hex > 0