Added tag generation script

_posts/2015-06-19-writing-posts.markup

@@ -22,9 +22,15 @@ tags: [ 'tutorial' ]
 
 The *layout* and *section-type* are used by the theme.
 
-<small>
 Note: *{ Personal }* generates a static page, just like all Jekyll themes.
-So we have to create the tag pages before building and publishing the site.
-For now, this has to be done manually, which practically means that you have to add a file under the tags directory, to represent the tag, similar to the existing tutorial.html file. I plan to write a script that will parse the posts, detect the tags and then auto-generate the tag pages.
-Tracked by <a href="https://github.com/PanosSakkos/personal-jekyll-theme/issues/2" target="_blank">issue #2</a>
-</small>
+As a result we have to create the tag pages before building and publishing the site.
+
+In order to generate the tag pages, simply run the *generate-tags* script from the repo's root directory:
+
+<pre style="text-align: left">
+./scripts/generate-tags
+</pre>
+
+The script will parse all your posts, and generate the tag pages for the newly added tags.
+
+If you are not using Github Pages, you can automate the execution of this script during build time.

scripts/generate-tags

@@ -0,0 +1,24 @@
+#!/usr/bin/ruby
+
+require 'yaml'
+
+POSTS_DIR = '_posts/'
+TAGS_DIR = 'tags/'
+
+Dir.foreach(POSTS_DIR) do |post|
+
+  next if post == '.' or post == '..' or post == '.DS_Store'
+  postYaml = YAML.load_file(POSTS_DIR + post)
+  postYaml['tags'].each{|tag|
+
+    unless File.exist?(TAGS_DIR + tag + '.html')
+
+      puts('[+] Generating #' + tag + ' page')
+
+      File.open(TAGS_DIR + tag + '.html', 'w') {|f| f.write(
+      "---\nlayout: tag\nsection-type: tag\ntitle: " + tag + "\n---\n## Tag")}
+
+    end
+  }
+
+end