Class: Jekyll::Site

Inherits:
Object
  • Object
show all
Defined in:
lib/jekyll/site.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ Site

Initialize the site

+config+ is a Hash containing site configurations details

Returns <Site>



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# File 'lib/jekyll/site.rb', line 11

def initialize(config)
  self.config          = config.clone

  self.source          = File.expand_path(config['source'])
  self.dest            = config['destination']
  self.lsi             = config['lsi']
  self.pygments        = config['pygments']
  self.permalink_style = config['permalink'].to_sym
  self.exclude         = config['exclude'] || []

  self.reset
  self.setup
end

Instance Attribute Details

#categories ⇒ Object

Returns the value of attribute categories.



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# File 'lib/jekyll/site.rb', line 4

def categories
  @categories
end

#config ⇒ Object

Returns the value of attribute config.



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# File 'lib/jekyll/site.rb', line 4

def config
  @config
end

#dest ⇒ Object

Returns the value of attribute dest.



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# File 'lib/jekyll/site.rb', line 4

def dest
  @dest
end

#exclude ⇒ Object

Returns the value of attribute exclude.



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# File 'lib/jekyll/site.rb', line 4

def exclude
  @exclude
end

#layouts ⇒ Object

Returns the value of attribute layouts.



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# File 'lib/jekyll/site.rb', line 4

def layouts
  @layouts
end

#lsi ⇒ Object

Returns the value of attribute lsi.



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# File 'lib/jekyll/site.rb', line 4

def lsi
  @lsi
end

#pages ⇒ Object

Returns the value of attribute pages.



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# File 'lib/jekyll/site.rb', line 4

def pages
  @pages
end

#permalink_style ⇒ Object

Returns the value of attribute permalink_style.



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# File 'lib/jekyll/site.rb', line 4

def permalink_style
  @permalink_style
end

#posts ⇒ Object

Returns the value of attribute posts.



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# File 'lib/jekyll/site.rb', line 4

def posts
  @posts
end

#pygments ⇒ Object

Returns the value of attribute pygments.



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# File 'lib/jekyll/site.rb', line 4

def pygments
  @pygments
end

#source ⇒ Object

Returns the value of attribute source.



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# File 'lib/jekyll/site.rb', line 4

def source
  @source
end

#static_files ⇒ Object

Returns the value of attribute static_files.



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# File 'lib/jekyll/site.rb', line 4

def static_files
  @static_files
end

#stylesheets ⇒ Object

Returns the value of attribute stylesheets.



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# File 'lib/jekyll/site.rb', line 4

def stylesheets
  @stylesheets
end

#tags ⇒ Object

Returns the value of attribute tags.



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# File 'lib/jekyll/site.rb', line 4

def tags
  @tags
end

Instance Method Details

#filter_entries(entries) ⇒ Object

Filter out any files/directories that are hidden or backup files (start with “.” or “#” or end with “~”), or contain site content (start with “_”), or are excluded in the site configuration, unless they are web server files such as ‘.htaccess’



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# File 'lib/jekyll/site.rb', line 269

def filter_entries(entries)
  entries = entries.reject do |e|
    unless ['.htaccess'].include?(e)
      ['.', '_', '#'].include?(e[0..0]) || e[-1..-1] == '~' || self.exclude.include?(e)
    end
  end
end

#paginate(page) ⇒ Object

Paginates the blog’s posts. Renders the index.html file into paginated directories, ie: page2/index.html, page3/index.html, etc and adds more site-wide data.

+page+ is the index.html Page that requires pagination

=> { “page” => <Number>,

"per_page" => <Number>,
"posts" => [<Post>],
"total_posts" => <Number>,
"total_pages" => <Number>,
"previous_page" => <Number>,
"next_page" => <Number> }



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# File 'lib/jekyll/site.rb', line 289

def paginate(page)
  all_posts = site_payload['site']['posts']
  pages = Pager.calculate_pages(all_posts, self.config['paginate'].to_i)
  (1..pages).each do |num_page|
    pager = Pager.new(self.config, num_page, all_posts, pages)
    if num_page > 1
      newpage = Page.new(self, self.source, page.dir, page.name)
      newpage.render(self.layouts, site_payload.merge({'paginator' => pager.to_hash}))
      newpage.dir = File.join(page.dir, "page#{num_page}")
      self.pages << newpage
    else
      page.render(self.layouts, site_payload.merge({'paginator' => pager.to_hash}))
    end
  end
end

#post_attr_hash(post_attr) ⇒ Object

Constructs a hash map of Posts indexed by the specified Post attribute

Returns => [<Post>]



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# File 'lib/jekyll/site.rb', line 243

def post_attr_hash(post_attr)
  # Build a hash map based on the specified post attribute ( post attr => array of posts )
  # then sort each array in reverse order
  hash = Hash.new { |hash, key| hash[key] = Array.new }
  self.posts.each { |p| p.send(post_attr.to_sym).each { |t| hash[t] << p } }
  hash.values.map { |sortme| sortme.sort! { |a, b| b <=> a} }
  return hash
end

#process ⇒ Object

Do the actual work of processing the site and generating the real deal. Now has 4 phases; reset, read, render, write. This allows rendering to have full site payload available.

Returns nothing



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# File 'lib/jekyll/site.rb', line 107

def process
  self.reset
  self.read
  self.render
  self.write
end

#read ⇒ Object 



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# File 'lib/jekyll/site.rb', line 114

def read
  self.read_layouts # existing implementation did this at top level only so preserved that
  self.read_directories
end

#read_directories(dir = '') ⇒ Object

Reads the directories and finds posts, pages and static files that will become part of the valid site according to the rules in filter_entries.

The +dir+ String is a relative path used to call this method
         recursively as it descends through directories

Returns nothing



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# File 'lib/jekyll/site.rb', line 214

def read_directories(dir = '')
  base = File.join(self.source, dir)
  entries = filter_entries(Dir.entries(base))

  self.read_posts(dir)
  self.read_stylesheets(dir)

  entries.each do |f|
    f_abs = File.join(base, f)
    f_rel = File.join(dir, f)
    if File.directory?(f_abs)
      next if self.dest.sub(/\/$/, '') == f_abs
      read_directories(f_rel)
    elsif !File.symlink?(f_abs)
      first3 = File.open(f_abs) { |fd| fd.read(3) }
      if first3 == "---"
        # file appears to have a YAML header so process it as a page
        pages << Page.new(self, self.source, dir, f)
      else
        # otherwise treat it as a static file
        static_files << StaticFile.new(self, self.source, dir, f)
      end
    end
  end
end

#read_layouts(dir = '') ⇒ Object

Read all the files in <source>/<dir>/_layouts and create a new Layout object with each one.

Returns nothing



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# File 'lib/jekyll/site.rb', line 123

def read_layouts(dir = '')
  base = File.join(self.source, dir, "_layouts")
  return unless File.exists?(base)
  entries = []
  Dir.chdir(base) { entries = filter_entries(Dir['*.*']) }

  entries.each do |f|
    name = f.split(".")[0..-2].join(".")
    self.layouts[name] = Layout.new(self, base, f)
  end
end

#read_posts(dir) ⇒ Object

Read all the files in <source>/<dir>/_posts and create a new Post object with each one.

Returns nothing



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# File 'lib/jekyll/site.rb', line 139

def read_posts(dir)
  base = File.join(self.source, dir, '_posts')
  return unless File.exists?(base)
  entries = Dir.chdir(base) { filter_entries(Dir['**/*']) }

  # first pass processes, but does not yet render post content
  entries.each do |f|
    if Post.valid?(f)
      post = Post.new(self, self.source, dir, f)

      if post.published
        self.posts << post
        post.categories.each { |c| self.categories[c] << post }
        post.tags.each { |c| self.tags[c] << post }
      end
    end
  end

  self.posts.sort!
end

#read_stylesheets(dir) ⇒ Object 



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# File 'lib/jekyll/site.rb', line 160

def read_stylesheets(dir)
  base = File.join(self.source, dir, '_stylesheets')
  return unless File.exists?(base)
  
  entries = []
  Dir.chdir(base) { entries = filter_entries(Dir['**/*.*']) }
  
  entries.each do |f|
    stylesheet = Stylesheet.new(self, base, dir, f)
    stylesheet.render()
    stylesheet.write(self.dest)        
  end
end

#render ⇒ Object 



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# File 'lib/jekyll/site.rb', line 174

def render
  self.posts.each do |post|
    post.render(self.layouts, site_payload)
  end

  self.pages.dup.each do |page|
    if Pager.pagination_enabled?(self.config, page.name)
      paginate(page)
    else
      page.render(self.layouts, site_payload)
    end
  end

  self.categories.values.map { |ps| ps.sort! { |a, b| b <=> a} }
  self.tags.values.map { |ps| ps.sort! { |a, b| b <=> a} }
rescue Errno::ENOENT => e
  # ignore missing layout dir
end

#reset ⇒ Object 



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# File 'lib/jekyll/site.rb', line 25

def reset
  self.layouts         = {}
  self.stylesheets     = []
  self.posts           = []
  self.pages           = []
  self.static_files    = []
  self.categories      = Hash.new { |hash, key| hash[key] = [] }
  self.tags            = Hash.new { |hash, key| hash[key] = [] }
end

#setup ⇒ Object 



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# File 'lib/jekyll/site.rb', line 35

def setup
  # Check to see if LSI is enabled.
  require 'classifier' if self.lsi

  # Set the Markdown interpreter (and Maruku self.config, if necessary)
  case self.config['markdown']
    when 'rdiscount'
      begin
        require 'rdiscount'

        def markdown(content)
          RDiscount.new(content).to_html
        end

      rescue LoadError
        puts 'You must have the rdiscount gem installed first'
      end
    when 'maruku'
      begin
        require 'maruku'

        def markdown(content)
          Maruku.new(content).to_html
        end

        if self.config['maruku']['use_divs']
          require 'maruku/ext/div'
          puts 'Maruku: Using extended syntax for div elements.'
        end

        if self.config['maruku']['use_tex']
          require 'maruku/ext/math'
          puts "Maruku: Using LaTeX extension. Images in `#{self.config['maruku']['png_dir']}`."

          # Switch off MathML output
          MaRuKu::Globals[:html_math_output_mathml] = false
          MaRuKu::Globals[:html_math_engine] = 'none'

          # Turn on math to PNG support with blahtex
          # Resulting PNGs stored in `images/latex`
          MaRuKu::Globals[:html_math_output_png] = true
          MaRuKu::Globals[:html_png_engine] =  self.config['maruku']['png_engine']
          MaRuKu::Globals[:html_png_dir] = self.config['maruku']['png_dir']
          MaRuKu::Globals[:html_png_url] = self.config['maruku']['png_url']
        end
      rescue LoadError
        puts "The maruku gem is required for markdown support!"
      end
    else
      raise "Invalid Markdown processor: '#{self.config['markdown']}' -- did you mean 'maruku' or 'rdiscount'?"
  end

  begin
    require 'less'

    def less(content)
      Less::Engine.new(content).to_css
    end
  rescue LoadError
    # Less is not required for stylesheet handling, so no-op if it cannot be found.
  end
end

#site_payload ⇒ Object

The Hash payload containing site-wide data

Returns => {“time” => <Time>,

"posts" => [<Post>],
"categories" => [<Post>]



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# File 'lib/jekyll/site.rb', line 257

def site_payload
  {"site" => self.config.merge({
      "time"       => Time.now,
      "posts"      => self.posts.sort { |a,b| b <=> a },
      "categories" => post_attr_hash('categories'),
      "tags"       => post_attr_hash('tags')})}
end

#textile(content) ⇒ Object 



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# File 'lib/jekyll/site.rb', line 98

def textile(content)
  RedCloth.new(content).to_html
end

#write ⇒ Object

Write static files, pages and posts

Returns nothing



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# File 'lib/jekyll/site.rb', line 196

def write
  self.posts.each do |post|
    post.write(self.dest)
  end
  self.pages.each do |page|
    page.write(self.dest)
  end
  self.static_files.each do |sf|
    sf.write(self.dest)
  end
end