refactor cfg as object

- now default type is 'nil', which is collapsed to flat config via
  Outputs#to_cfg

- if type is not 'nil' then name is automatically set if not set by
  model

- if name and type is set, separate file is created

- if name is not set, but type is set, outputs from type are collapsed
  as with 'nil' types

This model:
  cmd 'show ip cef' do |out|
    out.type = 'poop'
    out.name = false
    out
  end

  cmd 'show process cpu' do |out|
    out.type = 'poop'
    out.name = 'my_cpu'
    out
  end

  cmd 'show memory statistics' do |out|
    out.type = 'poop'
    out.name = false
    out
  end

  cmd 'show ip bgp summary' do |out|
    out.type = 'poop'
  end

Would produce git output:
[ytti@ytti.fi ~/.config/oxidized]% ls poop
bu.ip.fi  bu.ip.fi--cpu  bu.ip.fi--show_ip_bgp_summary
[ytti@ytti.fi ~/.config/oxidized]%

bu.ip.fi contains the collapsed stuff
bu.ip.fi--cpu is manually named
bu.ip.fi--show_ip_bgp_summary is automatically named

1 files changed, 5 insertions, 11 deletions

diff --git a/lib/oxidized/string.rb b/lib/oxidized/string.rb
index b17f896..d95bcae 100644
--- a/lib/oxidized/string.rb
+++ b/lib/oxidized/string.rb
@@ -1,7 +1,7 @@
 module Oxidized
   # Used in models, contains convenience methods
   class String < String
-    attr_accessor :type, :cmd
+    attr_accessor :type, :cmd, :name
 
     # @return [Oxidized::String] copy of self with last line removed
     def cut_tail
@@ -13,17 +13,11 @@ module Oxidized
       Oxidized::String.new each_line.to_a[1..-1].join
     end
 
-    # @return clean/filename version of cmd
-    def name
-      cmd.strip.gsub(/\s+/, '_')
+    # sets @cmd and @name unless @name is already set
+    def set_cmd command
+      @cmd  = command
+      @name = @cmd.strip.gsub(/\s+/, '_') if @name == nil
     end
 
-    private
-
-    def initialize arg
-      super
-      @type = 'cfg'
-      @cmd  = 'n/a'
-    end
   end
 end