Refactor 'insert' function to reduce repetition

bump some gems

Author: tjgrathwell

Gemfile.lock

@@ -1,13 +1,13 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (4.1.6)
+    activesupport (4.1.7)
       i18n (~> 0.6, >= 0.6.9)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
       thread_safe (~> 0.1)
       tzinfo (~> 1.1)
-    bootstrap-sass (3.2.0.2)
+    bootstrap-sass (3.3.0.1)
       sass (~> 3.2)
     celluloid (0.16.0)
       timers (~> 4.0.0)
@@ -29,7 +29,7 @@ GEM
     eventmachine (1.0.3)
     ffi (1.9.6)
     files (0.3.1)
-    font-awesome-sass (4.2.1)
+    font-awesome-sass (4.2.2)
       sass (~> 3.2)
     hike (1.2.3)
     hitimes (1.2.2)
@@ -41,11 +41,11 @@ GEM
       celluloid (>= 0.15.2)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
-    mini_portile (0.6.0)
+    mini_portile (0.6.1)
     minitest (5.4.2)
     multi_json (1.10.1)
-    nokogiri (1.6.3.1)
-      mini_portile (= 0.6.0)
+    nokogiri (1.6.4.1)
+      mini_portile (~> 0.6.0)
     polyglot (0.3.5)
     predicated (0.2.6)
     rack (1.5.2)
@@ -80,13 +80,13 @@ GEM
       sexp_processor (~> 4.0)
     ruby_parser (3.6.3)
       sexp_processor (~> 4.1)
-    sass (3.4.6)
+    sass (3.4.7)
     sexp_processor (4.4.4)
     sinatra (1.4.5)
       rack (~> 1.4)
       rack-protection (~> 1.4)
       tilt (~> 1.3, >= 1.3.4)
-    sprockets (2.12.2)
+    sprockets (2.12.3)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)

lib/step.rb

@@ -44,18 +44,23 @@ def insert file
 
     # todo: other file types
 
-    if File.exist?(path = File.join(dir, "_#{file}.step"))
-      src = File.read(path)
-      step = Step.new(src: src, doc_path: path, container_page_name: page_name, step_stack: @step_stack)
-      widget step
-    elsif File.exist?(path = File.join(dir, "#{file}.step"))
-      src = File.read(path)
-      step = Step.new(src: src, doc_path: path, container_page_name: page_name, step_stack: @step_stack)
-      widget step
-    elsif File.exist?(path = File.join(dir, "#{file}.md"))
-      src = File.read(path)
-      message src
+    possible_paths = ["_#{file}.step", "#{file}.step", "#{file}.md"].map do |path|
+      File.join(dir, path)
     end
+
+    possible_paths.each do |path|
+      if File.exist?(path)
+        src = File.read(path)
+        if path.end_with?('.step')
+          step = Step.new(src: src, doc_path: path, container_page_name: page_name, step_stack: @step_stack)
+          return widget step
+        else
+          return message src
+        end
+      end
+    end
+
+    raise "Couldn't find a partial for #{file}!"
   end
 
   ## steps