patch.rb in rubocop-git-kjanoudi-0.1.4

- old
+ new

@@ -2,19 +2,21 @@
 # copy from https://github.com/thoughtbot/hound/blob/d2f3933/app/models/patch.rb
 class Patch
   RANGE_INFORMATION_LINE = /^@@ .+\+(?<line_number>\d+),/
   MODIFIED_LINE = /^\+(?!\+|\+)/
   NOT_REMOVED_LINE = /^[^-]/
+  PATCH_INFO_LINE = /\+([0-9,]+)/
 
   def initialize(body)
     @body = body || ''
+    @changes = []
   end
 
   def additions
     line_number = 0
 
-    lines.each_with_index.inject([]) do |additions, (content, patch_position)|
+    lines.each_with_index.inject(@changes) do |additions, (content, patch_position)|
       case content
       when RANGE_INFORMATION_LINE
         line_number = Regexp.last_match[:line_number].to_i
       when MODIFIED_LINE
         additions << Line.new(content, line_number, patch_position)
@@ -23,9 +25,34 @@
         line_number += 1
       end
 
       additions
     end
+  end
+
+  # maps out additions line numbers to indicate start and end of code changes
+  # [[5,7], [11,11]] indicates changes from line 5, 6, 7 and then
+  # another one at 11
+  def additions_map
+    if @changes.empty?
+      self.additions
+    end
+
+    map = []
+    starting_line = ending_line = 0
+
+    @changes.each do |addition|
+      if starting_line == 0
+        starting_line = ending_line = addition.line_number
+      elsif addition.line_number == ( ending_line + 1 )
+        ending_line = addition.line_number
+      else # this row is not part of the last rows "group"
+        map.push([starting_line, ending_line])
+        starting_line = ending_line = addition.line_number
+      end
+    end
+    map.push([starting_line, ending_line])
+    map
   end
 
   private
 
   def lines