v 0.0.4 fix error when no exiftag config given in config file

Author: benib

README.md

@@ -39,7 +39,7 @@ These paths are relative to your sites root. Don't add leading and trailing slas
 
 ## License
 
-Copyright (C) 2013 Beni Buess (http://benel.net/)
+Copyright (C) 2013 - 2015 Beni Buess (http://benel.net/)
 
 The MIT License
 

jekyll-exiftag-0.0.4.gem

@@ -1,7 +1,7 @@
 Gem::Specification.new do |gem|
   gem.name        = 'jekyll-exiftag'
-  gem.version     = '0.0.3'
-  gem.date        = '2015-06-09'
+  gem.version     = '0.0.4'
+  gem.date        = '2015-10-13'
   gem.summary     = "jekyll-exiftag provides exif data in jekyll sites"
   gem.description = "jekyll-exiftag is a LiquidTag Extension for Jekyll to get Exif data from images"
   gem.authors     = ["Beni Buess"]
@@ -10,5 +10,5 @@ Gem::Specification.new do |gem|
   gem.homepage    = 'http://github.com/benib/jekyll-exiftag'
 
   gem.add_dependency "exifr"
-  
+
 end

jekyll-exiftag.gemspec

@@ -6,7 +6,7 @@
 # Usage:
 #
 # {% exiftag tagname,[source],[file] %}
-# 
+#
 # Everything given as tagname is called on EXIFR::JPEG, so this could be model oder f_number.to_f (see https://github.com/remvee/exifr)
 # If you give a source, this source is used build the fullpath for the given file (you can also configure them in _config.yml, see below)
 # If the file is given, this is the file to get Exif Tags for, this can be alternatively defined in the YAML Front Matter as img: file
@@ -35,7 +35,7 @@ def initialize(tag_name, params, token)
 
     def render(context)
       sources = Array.new()
-      if context.registers[:site].config['exiftag']['sources']
+      if if context.registers[:site].config['exiftag'] and context.registers[:site].config['exiftag']['sources']
         sources.unshift(*context.registers[:site].config['exiftag']['sources'])
       end
 
@@ -46,15 +46,15 @@ def render(context)
       if @args.count > 1
         sources.unshift(@args[1])
       end
-      
+
       # the image can be passed as the third parameter
       if @args.count > 2
         img = @args[2]
       # or be defined in the YAML Front Matter like img: <file>
       else
         img = context.environments.first["page"]["img"]
       end
-      
+
       # first check if the given img is already the path
       if File.exist?(img)
         file_name = img
@@ -73,7 +73,7 @@ def render(context)
         ""
       end
     end
-    
+
     def split_params(params)
       params.split(",").map(&:strip)
     end