handle commit messages with quotation marks

CHANGELOG

@@ -5,6 +5,7 @@
     - this should also result in less problems with IM version changes
     - some preliminary test work on using image_sorcery instead too
     - perhaps finally kill issue #9 from continually resurfacing
+  * make sure quotes are properly handled in commit messages
 
 0.3.4 (27 December 2012)
   * Add uploldz plugin for posting to a remote server (thx @cnvandev)

features/lolcommits.feature

@@ -140,3 +140,8 @@ Feature: Basic UI functionality
     Then the output should contain "Can't do that since we're not in a valid git repository!"
       And the exit status should be 1
 
+  Scenario: handle commit messages with quotation marks
+    Given I am in a git repository named "shellz" with lolcommits enabled
+    When I successfully run `git commit --allow-empty -m 'i hate \"air quotes\" dont you'`
+    Then the exit status should be 0
+      And there should be exactly 1 jpg in "../.lolcommits/shellz"

lib/lolcommits/plugins/loltext.rb

@@ -25,7 +25,7 @@ def mm_run
         c.pointsize '48'
         c.interline_spacing '-9'
         c.font font_location
-        c.annotate '0', word_wrap(self.runner.message)
+        c.annotate '0', clean_msg(self.runner.message)
       end
 
       image.combine_options do |c|
@@ -68,6 +68,18 @@ def mm_run
 
     private
 
+    # do whatever is required to commit message to get it clean and ready for imagemagick
+    def clean_msg(text)
+      wrapped_text = word_wrap text
+      escape_quotes wrapped_text
+    end
+
+    # conversion for quotation marks to avoid shell interpretation 
+    # does not seem to be a safe way to escape cross-platform?
+    def escape_quotes(text)
+      text.gsub(/"/, "''")
+    end
+
     # convenience method for word wrapping
     # based on https://github.com/cmdrkeene/memegen/blob/master/lib/meme_generator.rb
     def word_wrap(text, col = 27)