Rake task to update Jekyll repo with new TWBS version

bootstrap.rake

require 'pathname'
require 'erb'
require 'yaml'
require 'active_support/core_ext/hash'

require 'highline/import'

jekyll_config = YAML.load(ERB.new(File.read('_config.yml')).result).deep_symbolize_keys

ROOTDIR   = Pathname(File.expand_path("../", __FILE__))

PUBLICDIR = ROOTDIR.join(jekyll_config.fetch(:destination, '_site'))
SOURCEDIR = ROOTDIR.join(jekyll_config.fetch(:source, '.'))
SASSDIR   = ROOTDIR.join(SOURCEDIR, jekyll_config.fetch(:sass,'_sass'))
TMPDIR    = ROOTDIR.join('tmp')

def bootstrap_remote(version)
  "https://github.com/twbs/bootstrap-sass/archive/v#{version}.tar.gz"
end
def bootstrap_archive(version)
  "v#{version}.tar.gz"
end
def bootstrap_archive_dir(version)
  "bootstrap-sass-#{version}"
end

namespace :bootstrap do
  desc "Update Bootstrap Version"
  task :update, :version do |t, args|
    version = args.version || ask("Bootstrap Version? ") {|q| q.default = '3.2.0'}
    cd TMPDIR do
      sh "wget #{bootstrap_remote(version)}"
      sh "tar zxvf #{bootstrap_archive(version)}"
    end

    assets = TMPDIR.join(bootstrap_archive_dir(version), "assets")

    cd SASSDIR.join("bootstrap") do
      rm_rf "*"
      cp_r assets.join("stylesheets").children, "."
    end
    cd SOURCEDIR.join("javascripts") do
      rm_rf "bootstrap*"
      cp_r assets.join("javascripts").children, "."
    end
    cd SOURCEDIR.join("fonts") do
      rm_rf "bootstrap"
      cp_r assets.join("fonts/bootstrap"), "."
    end
  end
end

JEKYLL-BOOTSTRAP-UPDATE-README.md

Let's say you have a Jekyll site that you are using bootstrap-sass on, and you want to update to a new version.

This rake task will pull in the new version, unpack it, and move things into the appropriate locations, based on your _config.yml file.

touche