add keyth_check_file, update gemspec and readme, alter shebang paths on commands

Author: KludgeKML

README.md

@@ -43,8 +43,7 @@ For example, my_values.yml was:
 
 ### TOOLS:
 
-bin/keyth_admin allows you to add, remove, or list keys in your local store
+keyth_admin allows you to add, remove, or list keys in your local store
 
-### TODO:
+keyth_check_file checks to see if a supplied file contains any of the keys listed in the keystore, and fails with suggested replacements if any are found. This can be called from (for example) a git hook to check that committed files don't contain any of the keys you're storing locally.
 
-Support code for Ruby GitHooks that will automatically flag any key listed in the key repository that has somehow escaped into commitable files.

bin/keyth_admin

@@ -1,4 +1,4 @@
-#! /usr/bin/ruby
+#! /usr/bin/env ruby
 # encoding: utf-8
 require 'keyth'
 

bin/keyth_check_file

@@ -0,0 +1,26 @@
+#! /usr/bin/env ruby
+# encoding: utf-8
+require 'keyth'
+
+unless ARGV[0]
+  puts 'Usage: keyth_check_file <file>'
+  exit 1
+end
+
+unless File.file?(ARGV[0])
+  puts "ERROR: #{ARGV[0]} not found"
+  exit 1
+end
+
+errors = []
+file_contents = File.read(ARGV[0])
+Keyth.keys.each do |k, v|
+  if file_contents.include?(v)
+    errors << "Found: #{v} replace with keyth:#{k}"
+  end
+end
+
+exit 0 if errors.empty?
+
+errors.each { |e| puts e }
+exit 1

keyth.gemspec

@@ -1,14 +1,15 @@
 # encoding: utf-8
 Gem::Specification.new do |s|
   s.name        = 'keyth'
-  s.version     = '0.1.0'
-  s.date        = '2014-08-16'
+  s.version     = '0.2.0'
+  s.date        = '2014-08-17'
   s.summary     = 'Keyth!'
   s.description = 'Handles named keys for use in config files'
   s.authors     = ['K M Lawrence']
   s.email       = 'keith@kludge.co'
-  s.executables = ['keyth_admin']
-  s.files       = ['lib/keyth.rb', 'lib/keyth/yaml.rb', 'lib/keyth/dotenv.rb', 'bin/keyth_admin']
+  s.executables = ['keyth_admin', 'keyth_check_file']
+  s.files       = ['lib/keyth.rb', 'lib/keyth/yaml.rb', 'lib/keyth/dotenv.rb',
+                   'bin/keyth_admin', 'bin/keyth_check_file']
   s.homepage    = 'http://rubygems.org/gems/keyth'
   s.license     = 'MIT'
 end