Rakefile

require "rubygems"
require "bundler/setup"
require "stringex"
require "date"
require "fileutils"


source_dir = "."
new_page_ext    = "markdown"
new_post_ext    = "markdown"
posts_dir       = "_posts"    # directory for blog files
deploy_dir      = "_github_deploy"   # deploy directory (for Github pages
public_dir      = "_site"    # compiled site directory
deploy_branch   = "master"
github_repository_url = "git@github.com:joelmccracken/joelmccracken.github.com"


# usage rake new_page[my-new-page] or rake new_page[my-new-page.html] or rake new_page (defaults to "new-page.markdown")
desc "Create a new page in #{source_dir}/(filename)/index.#{new_page_ext}"
task :new_page, :filename do |t, args|
  raise "### You haven't set anything up yet. First run `rake install` to set up an Octopress theme." unless File.directory?(source_dir)
  args.with_defaults(:filename => 'new-page')
  page_dir = [source_dir]
  if args.filename.downcase =~ /(^.+\/)?(.+)/
    filename, dot, extension = $2.rpartition('.').reject(&:empty?)         # Get filename and extension
    title = filename
    page_dir.concat($1.downcase.sub(/^\//, '').split('/')) unless $1.nil?  # Add path to page_dir Array
    if extension.nil?
      page_dir << filename
      filename = "index"
    end
    extension ||= new_page_ext
    page_dir = page_dir.map! { |d| d = d.to_url }.join('/')                # Sanitize path
    filename = filename.downcase.to_url

    mkdir_p page_dir
    file = "#{page_dir}/#{filename}.#{extension}"
    if File.exist?(file)
      abort("rake aborted!") if ask("#{file} already exists. Do you want to overwrite?", ['y', 'n']) == 'n'
    end
    puts "Creating new page: #{file}"
    open(file, 'w') do |page|
      page.puts "---"
      page.puts "layout: page"
      page.puts "title: \"#{title}\""
      page.puts "date: #{Time.now.strftime('%Y-%m-%d %H:%M')}"
      page.puts "comments: true"
      page.puts "sharing: true"
      page.puts "footer: true"
      page.puts "---"
    end
  else
    puts "Syntax error: #{args.filename} contains unsupported characters"
  end
end

desc "copy dot files for deployment"
task :copydot, :source, :dest do |t, args|
  FileList["#{args.source}/**/.*"].exclude("**/.", "**/..", "**/.DS_Store", "**/._*").each do |file|
    cp_r file, file.gsub(/#{args.source}/, "#{args.dest}") unless File.directory?(file)
  end
end







# usage rake new_post[my-new-post] or rake new_post['my new post'] or rake new_post (defaults to "new-post")
desc "Begin a new post in #{source_dir}/#{posts_dir}"
task :new_post, :title do |t, args|
  if args.title
    title = args.title
  else
    title = get_stdin("Enter a title for your post: ")
  end
  raise "### You haven't set anything up yet. First run `rake install` to set up an Octopress theme." unless File.directory?(source_dir)
  mkdir_p "#{source_dir}/#{posts_dir}"
  filename = "#{source_dir}/#{posts_dir}/#{Time.now.strftime('%Y-%m-%d')}-#{title.to_url}.#{new_post_ext}"
  if File.exist?(filename)
    abort("rake aborted!") if ask("#{filename} already exists. Do you want to overwrite?", ['y', 'n']) == 'n'
  end
  puts "Creating new post: #{filename}"
  open(filename, 'w') do |post|
    post.puts "---"
    post.puts "layout: post"
    post.puts "title: \"#{title.gsub(/&/,'&amp;')}\""
    post.puts "date: #{Time.now.strftime('%Y-%m-%d %H:%M:%S %z')}"
    post.puts "comments: true"
    post.puts "categories: "
    post.puts "---"
  end
end

desc "deploy public directory to github pages"
multitask :push do
  puts "## Building"
  system 'jekyll build'
  puts "## Deploying branch to Github Pages "
  puts "## Pulling any updates from Github Pages "
  cd "#{deploy_dir}" do
    system "git pull"
  end
  (Dir["#{deploy_dir}/*"]).each { |f| rm_rf(f) }
  Rake::Task[:copydot].invoke(public_dir, deploy_dir)
  puts "\n## Copying #{public_dir} to #{deploy_dir}"
  cp_r "#{public_dir}/.", deploy_dir
  cd "#{deploy_dir}" do
    system "git add -A"
    puts "\n## Committing: Site updated at #{Time.now.utc}"
    message = "Site updated at #{Time.now.utc}"
    system "git commit -m \"#{message}\""
    puts "\n## Pushing generated #{deploy_dir} website"
    system "git push origin #{deploy_branch} -f"
    puts "\n## Github Pages deploy complete"
  end
end





desc "Set up _deploy folder and deploy branch for Github Pages deployment"
task :setup_github_pages, :repo do |t, args|
  repo_url = github_repository_url
  protocol = (repo_url.match(/(^git)@/).nil?) ? 'https' : 'git'
  if protocol == 'git'
    user = repo_url.match(/:([^\/]+)/)[1]
  else
    user = repo_url.match(/github\.com\/([^\/]+)/)[1]
  end
  branch = (repo_url.match(/\/[\w-]+\.github\.(?:io|com)/).nil?) ? 'gh-pages' : 'master'
  project = (branch == 'gh-pages') ? repo_url.match(/\/([^\.]+)/)[1] : ''
  unless (`git remote -v` =~ /origin.+?octopress(?:\.git)?/).nil?
    # If octopress is still the origin remote (from cloning) rename it to octopress
    system "git remote rename origin octopress"
    if branch == 'master'
      # If this is a user/organization pages repository, add the correct origin remote
      # and checkout the source branch for committing changes to the blog source.
      system "git remote add origin #{repo_url}"
      puts "Added remote #{repo_url} as origin"
      system "git config branch.master.remote origin"
      puts "Set origin as default remote"
      system "git branch -m master source"
      puts "Master branch renamed to 'source' for committing your blog source files"
    else
      unless !public_dir.match("#{project}").nil?
        system "rake set_root_dir[#{project}]"
      end
    end
  end
  jekyll_config = IO.read('_config.yml')
  jekyll_config.sub!(/^url:.*$/, "url: #{blog_url(user, project)}")
  File.open('_config.yml', 'w') do |f|
    f.write jekyll_config
  end
  rm_rf deploy_dir
  mkdir deploy_dir
  cd "#{deploy_dir}" do
    system "git init"
    system "echo 'My Octopress Page is coming soon &hellip;' > index.html"
    system "git add ."
    system "git commit -m \"Octopress init\""
    system "git branch -m gh-pages" unless branch == 'master'
    system "git remote add origin #{repo_url}"
    rakefile = IO.read(__FILE__)
    rakefile.sub!(/deploy_branch(\s*)=(\s*)(["'])[\w-]*["']/, "deploy_branch\\1=\\2\\3#{branch}\\3")
    rakefile.sub!(/deploy_default(\s*)=(\s*)(["'])[\w-]*["']/, "deploy_default\\1=\\2\\3push\\3")
    File.open(__FILE__, 'w') do |f|
      f.write rakefile
    end
  end
  puts "\n---\n## Now you can deploy to #{repo_url} with `rake deploy` ##"
end



def blog_url(user, project)
  url = if File.exists?('source/CNAME')
    "http://#{IO.read('source/CNAME').strip}"
  else
    "http://#{user}.github.io"
  end
  url += "/#{project}" unless project == ''
  url
end



desc "list posts that already exist, because I forget what I've written in the past"
task "list-posts" do |t|
  Dir["_posts/*"].each do |post_name|
    puts readable_name(post_name)
  end
end


def readable_name filename
  name_parts = filename.match /(\d+-\d+-\d+)-(.*)\.(markdown|md)/
  name_parts[2].gsub "-", " "
end