Personal Blog Deployment

_config.yml

# 
# == Configuration relevant to deployment
post:
  template: _post.txt
  extension: md
editor: 'mvim -v'
git:
  branch: master
transfer:
  command: rsync
  settings: -avp --delete
  source: _site/
  destination: "username@url.site/www/dir"

Rakefile

#
# == Dependencies
#

require 'rake'
require 'yaml'
require 'fileutils'
require 'rbconfig'

#
# == Configuration
#

# Set "rake watch" as default task
task :default => :watch

#Tag date YYYY-MM-DD HH:MM:SS +/-TTTT
TAG_DATE = Time.now.strftime("%Y-%m-%d-%H-%M")
# Load the configuration file
CONFIG = YAML.load_file("_config.yml")
# Get and parse the date
DATE = Time.now.strftime("%Y-%m-%d")
# Current time
CURRENT_TIME= Time.now.strftime("%Y-%m-%d %H:%M:%S")

#
# == Helper functions
#

# Execute a system command
def execute(command)
  system "#{command}"
end

# Chech the title
def check_title(title)
  if title.nil? or title.empty?
    raise "Please add a title to your file."
  end
end

# Transform the filename and date to a slug
def transform_to_slug(title, extension)
  characters = /("|'|!|\?|:|\s\z)/
  whitespace = /\s/
  "#{title.gsub(characters,"").gsub(whitespace,"-").downcase}.#{extension}"
end


# Save the file with the title in the YAML front matter
def write_file(content, title, directory, filename)
  parsed_content = "#{content.sub("title:", "title: \"#{title}\"")}#{content.sub("date:", "date: \"#{CURRENT_TIME}\"")}"
  content = content.gsub("title:", "title: \"#{title}\"")
  parsed_content = content.gsub("date:", "date: \"#{CURRENT_TIME}\"")
  #parsed_content = parsed_content + "#{content.sub("date:", "date: \"#{CURRENT_TIME}\"")}"
  File.write("#{directory}/#{filename}", parsed_content)
  puts "#{filename} was created in '#{directory}'."
end

# Create the file with the slug and open the default editor
def create_file(directory, filename, content, title, editor)
  if File.exists?("#{directory}/#{filename}")
    raise "The file already exists."
  else
    write_file(content, title, directory, filename)
    if editor && !editor.nil?
      sleep 1
      execute("#{editor} #{directory}/#{filename}")
    end
  end
end

# Allow passing argv to tasks without throwing
# undefined task errors.
def escape_argv(argv)
  # This defines an empty task at runtime for
  # each argv item.
  argv.each { |a| task a.to_sym do ; end }
end

#
# == Tasks
#

# rake post "My Post Title"
desc "Create a post in _posts"
task :post do
  escape_argv(ARGV)
  title = ARGV[1]
  if title.nil? or title.empty?
    raise "Please add a title to your file."
  end
  template = CONFIG["post"]["template"]
  extension = CONFIG["post"]["extension"]
  editor = CONFIG["editor"]
  filename = transform_to_slug("#{DATE}-#{title}", extension)
  content = File.read(template)
  create_file('_posts', filename, content, title, editor)
end

# rake build
desc "Build the site"
task :build do
  execute("bundle exec jekyll build")
end

# rake deploy "Commit message"
desc "Deploy the site to a remote git repo"
task :deploy do
  escape_argv(ARGV)
  message = ARGV[1]
  branch = CONFIG["git"]["branch"]
  command = CONFIG["transfer"]["command"]
  source = CONFIG["transfer"]["source"]
  destination = CONFIG["transfer"]["destination"]
  settings = CONFIG["transfer"]["settings"]
  if message.nil? or message.empty?
    message = CURRENT_TIME
  end
  if branch.nil? or branch.empty?
    raise "Please add a branch."
  else
    execute("bundle exec jekyll build")
    execute("git add .")
    execute("git tag #{TAG_DATE}")
    execute("git commit -m \"#{CURRENT_TIME}\"")
    execute("git push --follow-tags origin #{branch} && git push --tags")
  end
  if command.nil? or command.empty?
    raise "Please choose a file transfer command."
  else
    Rake::Task[:build].invoke
    execute("rsync #{settings} #{source} #{destination}")
    puts "Your site was transfered."
  end
end