How to Add Category or Tag to Github Page Posts

[updated 2015.09.13] This adding method is only for my project pages (gh-pages) GitBlogs, and for octopress, the way is builded in.

[updated 2015.06.07] For adding category or tag automatically through python script, go to here.

Introduction

The index page includes cat_tag_for_index.html for showing all the categories and tags, and the number of the corresponding posts.

The _layouts/default.html describes the content of a post, because post includes it. In the _layout/default.html file, it includes the cat_tag.html template as the category and tag info in the beginning of the post. And cat_tag.html also includes the date behind.

_data/categories.yml and _data/tags.yml describe all the categories and tags.

Category

To add a category:

1. add the category in _data/categories.yml. The slug tag is used as the id, the name is used as the description, and the color is used as the background color.

2. in folder blog/category/, add a .md file with the category as the file name. use the following as the content (change category_name to the real category name):

   ---
   layout: blog_by_category
   cat: category_name
   permalink: /blog/category/category_name/
   ---
   

Now we can use category: category_name in the post YAML header to indicate the category of the post.

Note: the category name can not contain capital letter. For example, testCat will not work as a new category.

Tag

Adding a new tag is very similar to adding a new category.