change variables to point to option parser, updated readme

README.md

@@ -10,13 +10,19 @@ or more of these older versions.
 
 Run the script like this:
 
-    clientbucket.rb /path/to/file
+    clientbucket.rb -t /path/to/file -c path/to/client/bucket
 
-Where /path/to/file is the file on the system that you're looking for old versions of.
+Where /path/to/file is the file on the system that you're looking for old versions of. If you run it by itself, it will return the following help screen:
+
+    Usage: clientbucket.rb -t target_path -c clientbucket_path
+        -t, --target_path target_path    path of the file to restore
+        -c clientbucket_path,            where to restore from. Defaults to /var/lib/puppet/clientbucket
+            --clientbucket_path
+        -h, --help  
 
 The script runs interactively and prompts you for what you want to do. An example:
 
-    # clientbucket.rb /some/test/file
+    # clientbucket.rb -t /some/test/file
     [0]: 41f59421026a473a0378c58d539069c6 Thu Feb 09 15:56:36 +0000 2012
     [1]: 6bc6ab38660066ea8cf0743b889bd075 Mon Feb 20 15:23:59 +0000 2012
     [2]: 74da6d605bfd7ecad38904bc35a0292a Thu May 24 13:45:10 +0100 2012

clientbucket.rb

@@ -1,42 +1,38 @@
-#!/usr/bin/ruby
+#!/usr/bin/env ruby
 
 require 'rubygems'
 require 'find'
 require 'optparse'
 
+ARGV << '-h' if ARGV.empty?
 options = {:target_path => nil, :clientbucket_path => nil}
-parser = OptionParser.new do |opts|
+OptionParser.new do |opts|
   opts.banner = "Usage: clientbucket.rb -t target_path -c clientbucket_path"
   
-  opts.on("-t", "--target_path target_path", "path to file to restore") do |t|
+  opts.on("-t", "--target_path target_path", "path of the file to restore") do |t|
     options[:target_path] = t
   end
 
-  opts.on("-c", "--clientbucket_path clientbucket_path", "path to file to restore") do |c|
+  opts.on("-c", "--clientbucket_path clientbucket_path", "where to restore from. Defaults to /var/lib/puppet/clientbucket") do |c|
     options[:clientbucket_path] = c
   end
-end
 
-parser.parse!
-
-if options[:target_path] == nil
-  print 'Enter target path: '
-  options[:target_path] = gets.chomp
-end
+  opts.on_tail("-h", "--help", "Show this message") do
+    puts opts
+    exit
+  end
+end.parse!
 
 if options[:clientbucket_path] == nil
-  print 'Enter clientbucket path: '
-  options[:clientbucket_path] = gets.chomp
+  # We are keeping it on old path, as there are installations that have not moved on 
+  # to Puppet 4
+  options[:clientbucket_path] = "/var/lib/puppet/clientbucket"
 end
 
-target_path = options[:target_path]
-
-clientbucket_path =  options[:clientbucket_path]
-
 available_files = Array.new
 
 begin
-  Find.find(clientbucket_path) do |file_path|
+  Find.find(options[:clientbucket_path]) do |file_path|
 
     # Skip directories and "contents" files
     next if FileTest.directory?(file_path)
@@ -45,7 +41,7 @@ begin
     # See if this file has a path the user was looking for
     path = File.open(file_path).first
     path.chomp!
-    if target_path == path
+    if options[:target_path] == path
 
       # Get the md5 string the file is referred to by
       file_path =~ /([^\/]+)\/paths$/;
@@ -64,11 +60,11 @@ begin
 
   end
 rescue
-  puts "Unable to open file path #{clientbucket_path}"
+  puts "Unable to open file path #{options[:clientbucket_path]}"
 end
 # See if we found any files for the user
 if available_files.length == 0
-  puts "No files with path #{target_path} exist in the clientbucket"
+  puts "No files with path #{options[:target_path]} exist in the clientbucket"
   exit 2
 end
 
@@ -125,16 +121,16 @@ while true
     when "v"
       system("vim #{available_files[number][:contents_path]}")
     when "d"
-      system("diff #{available_files[number][:contents_path]} #{target_path}")
+      system("diff #{available_files[number][:contents_path]} #{options[:target_path]}")
     when "u"
-      system("diff -u #{available_files[number][:contents_path]} #{target_path}")
+      system("diff -u #{available_files[number][:contents_path]} #{options[:target_path]}")
     when "r"
-      print "Restore to (default is to restore to #{target_path}): "
+      print "Restore to (default is to restore to #{options[:target_path]}): "
       choice = gets.strip
       choice.chomp!
 
       # If not specified, use the default
-      restore_path = target_path
+      restore_path = options[:target_path]
       if choice != ''
         restore_path = choice
       end