Added code to change the extension of a post based on the format used to write the post in MT.

lib/jekyll/migrators/mt.rb

@@ -5,6 +5,7 @@
 require 'rubygems'
 require 'sequel'
 require 'fileutils'
+require 'yaml'
 
 # NOTE: This converter requires Sequel and the MySQL gems.
 # The MySQL gem can be difficult to install on OS X. Once you have MySQL
@@ -17,7 +18,7 @@ module Jekyll
     # This query will pull blog posts from all entries across all blogs. If
     # you've got unpublished, deleted or otherwise hidden posts please sift
     # through the created posts to make sure nothing is accidently published.
-    QUERY = "SELECT entry_id, entry_basename, entry_text, entry_text_more, entry_created_on, entry_title FROM mt_entry"
+    QUERY = "SELECT entry_id, entry_basename, entry_text, entry_text_more, entry_created_on, entry_title, entry_convert_breaks FROM mt_entry"
 
     def self.process(dbname, user, pass, host = 'localhost')
       db = Sequel.mysql(dbname, :user => user, :password => pass, :host => host)
@@ -30,6 +31,7 @@ module Jekyll
         date = post[:entry_created_on]
         content = post[:entry_text]
         more_content = post[:entry_text_more]
+        entry_convert_breaks = post[:entry_convert_breaks]
 
         # Be sure to include the body and extended body.
         if more_content != nil
@@ -39,7 +41,7 @@ module Jekyll
         # Ideally, this script would determine the post format (markdown, html
         # , etc) and create files with proper extensions. At this point it
         # just assumes that markdown will be acceptable.
-        name = [date.year, date.month, date.day, slug].join('-') + ".markdown"
+        name = [date.year, date.month, date.day, slug].join('-') + '.' + self.suffix(entry_convert_breaks)
 
         data = {
            'layout' => 'post',
@@ -55,5 +57,21 @@ module Jekyll
       end
 
     end
+    
+    def self.suffix(entry_type)
+      if entry_type.nil? || entry_type.include?("markdown")
+          # The markdown plugin I have saves this as "markdown_with_smarty_pants", so I just look for "markdown".
+          "markdown"
+        elsif entry_type.include?("textile")
+          # This is saved as "textile_2" on my installation of MT 5.1.
+          "textile"
+        elsif entry_type == "0" || entry_type.include?("richtext")
+          # richtext looks to me like it's saved as HTML, so I include it here.
+          "html"
+        else
+          # Other values might need custom work.
+          entry_type
+      end
+    end
   end
 end