Simplify msftidy with Find.find and add fixed()

Also, enforce binary encoding like the other Metasploit tools.

This opens the door to fixing files that have things that could be fixed
programmatically.

    [SeeRM #8497]

tools/msftidy.rb

@@ -1,10 +1,13 @@
 #!/usr/bin/env ruby
+# -*- coding: binary -*-
 #
 # Check (recursively) for style compliance violations and other
 # tree inconsistencies.
 #
 # by jduck and friends
 #
+require 'fileutils'
+require 'find'
 
 CHECK_OLD_RUBIES = !!ENV['MSF_CHECK_OLD_RUBIES']
 
@@ -22,6 +25,10 @@ class String
     "\e[1;33;40m#{self}\e[0m"
   end
 
+  def green
+    "\e[1;32;40m#{self}\e[0m"
+  end
+
   def ascii_only?
     self =~ Regexp.new('[\x00-\x08\x0b\x0c\x0e-\x19\x7f-\xff]', nil, 'n') ? false : true
   end
@@ -31,9 +38,12 @@ class Msftidy
 
   LONG_LINE_LENGTH = 200 # From 100 to 200 which is stupidly long
 
+  attr_reader :full_filepath, :source, :name
+
   def initialize(source_file)
+    @full_filepath = source_file
     @source  = load_file(source_file)
-    @name    = source_file
+    @name    = File.basename(source_file)
   end
 
   public
@@ -56,6 +66,11 @@ class Msftidy
     puts "#{@name}#{line_msg} - [#{'ERROR'.red}] #{txt}"
   end
 
+  def fixed(txt, line=0)
+    line_msg = (line>0) ? ":#{line.to_s}" : ''
+    puts "#{@name}#{line_msg} - [#{'FIXED'.green}] #{txt}"
+  end
+
 
   ##
   #
@@ -234,12 +249,12 @@ class Msftidy
     end
   end
 
-  def test_old_rubies(f_rel)
+  def test_old_rubies
     return true unless CHECK_OLD_RUBIES
     return true unless Object.const_defined? :RVM
-    puts "Checking syntax for #{f_rel}."
+    puts "Checking syntax for #{@name}."
     rubies ||= RVM.list_strings
-    res = %x{rvm all do ruby -c #{f_rel}}.split("\n").select {|msg| msg =~ /Syntax OK/}
+    res = %x{rvm all do ruby -c #{@full_filepath}}.split("\n").select {|msg| msg =~ /Syntax OK/}
     error("Fails alternate Ruby version check") if rubies.size != res.size
   end
 
@@ -411,14 +426,14 @@ class Msftidy
   end
 end
 
-def run_checks(f_rel)
-  tidy = Msftidy.new(f_rel)
+def run_checks(full_filepath)
+  tidy = Msftidy.new(full_filepath)
   tidy.check_ref_identifiers
   tidy.check_old_keywords
   tidy.check_verbose_option
   tidy.check_badchars
   tidy.check_extname
-  tidy.test_old_rubies(f_rel)
+  tidy.test_old_rubies
   tidy.check_ranking
   tidy.check_disclosure_date
   tidy.check_title_casing
@@ -441,33 +456,11 @@ if dirs.length < 1
   exit(1)
 end
 
-dirs.each { |dir|
-  f = nil
-  old_dir = nil
-
-  if dir
-    if File.file?(dir)
-      # whoa, a single file!
-      f = File.basename(dir)
-      dir = File.dirname(dir)
-    end
-
-    old_dir = Dir.getwd
-    Dir.chdir(dir)
-    dparts = dir.split('/')
-  else
-    dparts = []
+dirs.each do |dir|
+  Find.find(dir) do |full_filepath|
+    next if full_filepath =~ /\.git[\x5c\x2f]/
+    next unless File.file? full_filepath
+    next unless full_filepath =~ /\.rb$/
+    run_checks(full_filepath)
   end
-
-  # Only one file?
-  if f
-    run_checks(f)
-  else
-    # Do a recursive check of the specified directory
-    Dir.glob('**/*.rb') { |f|
-      run_checks(f)
-    }
-  end
-
-  Dir.chdir(old_dir)
-}
+end