Deploying Jekyll site for Github pages through rake script

31 August, 2014.
Under: tech

This blog is powered by Jekyll and I use Github pages as web server.

Branch structure in Github

Github by default publish the contents of the master branch as a github page. So i have created two branches in the repository.

source: contains Jekyll based folder structure. _drafts, _posts, _site etc. All the new posts are added in the drafts folder first and then once its written fully it is then moved to _posts folder and are then ready to be published.

master: is simply a generated content from the rake script. This branch has all the HTML files that are generated using Jekyll gem.

Folder structure in Dev box

I have both the branches checked out in different folders. Both these folders are present in the same level (will be useful while generating output)

Rake script

To generate HTML

I have the Rakefile in the root level of my source branch. The rake task mentioned below will create HTML equivalent inside the _site folder.

task :generate do{
    "source"      => ".",
    "destination" => "_site"
To publish in Github

This task copies the entire _site folder into the master branch (locally). This is why i need to checkout both master and source branches separately and keep them in the same level.

After copying the contents, simply it switches to the master branch and does a git push.

Once the changes are pushed into github's master branch the changes are then reflected in your site immediately.

task :publish => [:generate] do
  cp_r "_site/.", LOCAL_DIR_NAME
  cp ".travis.yml", LOCAL_DIR_NAME
  pwd = Dir.pwd
  Dir.chdir LOCAL_DIR_NAME
  system "git add --all"
  message = "Site updated at #{}"
  system "git commit -m #{message.inspect}"
  system "git push origin master:refs/heads/master"
  Dir.chdir pwd
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