lib/pushover/config.rb in pushover-0.2.0 vs lib/pushover/config.rb in pushover-0.3.1

@@ -1,40 +1,62 @@
 require 'fileutils'
 
 module Pushover
+  # This is an extended [Hash] that adds some saving features via yajl.
   class ConfigBlob < Hash
-    BaseDir = "#{Dir.home}/.config/pushover"
+    attr_accessor :save_file
 
+    # @return [String] the dirname of the save file.
+    def save_dir
+      File.dirname @save_file
+    end
+
     def initialize(load = true)
-      FileUtils.mkdir_p BaseDir if !Dir.exist? BaseDir
+      @save_file = "#{Dir.home}/.config/pushover/config.json"
+
       self.load if load
     end
 
-    def file
-      "#{BaseDir}/config.json"
+    # Clear the config file (not implemented)
+    def clear
     end
 
+    # Save the config, will raise an exception if the file exists.
     def save
+      FileUtils.mkdir_p save_dir if !Dir.exist? save_dir
       if any?
         # I do this the long way because I want an immediate sync.
-        f = open(file, 'w')
+        f = open(@save_file, 'w')
         f.write Yajl.dump self
         f.sync
         f.close
       end
     end
 
-    def save!
-      FileUtils.rm file if File.file? file
+    # Backup our save file, will remove original in the process.
+    def backupSave
+      FileUtils.mv @save_file, "#{@save_file}.bak" if File.file? @save_file
+    end
+
+    # Save the config, removing the existing one if necessary.
+    def save!(backup = true)
+      if backup
+        backupSave
+      else
+        FileUtils.rm @save_file if File.file? @save_file
+      end
+
       save
     end
 
+    # Load the config file if it is available.
     def load
-      if File.exist?(self.file) && File.stat(self.file).size > 0
-        h = Yajl.load open(file, 'r').read
+      if File.exist?(@save_file) && File.stat(@save_file).size > 0
+        h = Yajl.load open(@save_file, 'r').read
         h.each { |k,v| self[k.to_sym] = v}
       end
     end
   end
 
+  # A convenience instance of config, provides Pushover.Config.
   Config = ConfigBlob.new
 end