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(source, dest) ⇒ Site

Initialize the site

+source+ is String path to the source directory containing
         the proto-site
+dest+ is the String path to the directory where the generated
       site should be written

Returns <Site>



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# File 'lib/jekyll/site.rb', line 14

def initialize(source, dest)
  self.source = source
  self.dest = dest
  self.layouts = {}
  self.posts = []
end

Instance Attribute Details

#dest ⇒ Object

Returns the value of attribute dest.



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

def dest
  @dest
end

#layouts ⇒ Object

Returns the value of attribute layouts.



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# File 'lib/jekyll/site.rb', line 5

def layouts
  @layouts
end

#posts ⇒ Object

Returns the value of attribute posts.



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# File 'lib/jekyll/site.rb', line 5

def posts
  @posts
end

#source ⇒ Object

Returns the value of attribute source.



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

def source
  @source
end

Instance Method Details

#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 135

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.

Returns nothing



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

def process
  self.read_layouts
  self.transform_pages
  self.write_posts
end

#read_layouts ⇒ Object

Read all the files in <source>/_layouts except backup files (end with “~”) into memory for later use.

Returns nothing



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

def read_layouts
  base = File.join(self.source, "_layouts")
  entries = Dir.entries(base)
  entries = entries.reject { |e| e[-1..-1] == '~' }
  entries = entries.reject { |e| File.directory?(File.join(base, e)) }
  
  entries.each do |f|
    name = f.split(".")[0..-2].join(".")
    self.layouts[name] = Layout.new(base, f)
  end
rescue Errno::ENOENT => e
  # ignore missing layout dir
end

#read_posts(dir) ⇒ Object

Read all the files in <base>/_posts except backup files (end with “~”) and create a new Post object with each one.

Returns nothing



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# File 'lib/jekyll/site.rb', line 53

def read_posts(dir)
  base = File.join(self.source, dir, '_posts')
  
  entries = []
  Dir.chdir(base) { entries = Dir['**/*'] }
  entries = entries.reject { |e| e[-1..-1] == '~' }
  entries = entries.reject { |e| File.directory?(File.join(base, e)) }

  # first pass processes, but does not yet render post content
  entries.each do |f|
    if Post.valid?(f)
      post = Post.new(self.source, dir, f)
      self.posts << post
    end
  end
  
  # second pass renders each post now that full site payload is available
  self.posts.each do |post|
    post.render(self.layouts, site_payload)
  end
  
  self.posts.sort!
rescue Errno::ENOENT => e
  # ignore missing layout dir
end

#site_payload ⇒ Object

The Hash payload containing site-wide data

Returns => {“time” => <Time>,

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



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# File 'lib/jekyll/site.rb', line 150

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

#transform_pages(dir = '') ⇒ Object

Copy all regular files from <source> to <dest>/ ignoring any files/directories that are hidden or backup files (start with “.” or end with “~”) or contain site content (start with “_”) unless they are “_posts” directories

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 96

def transform_pages(dir = '')
  base = File.join(self.source, dir)
  entries = Dir.entries(base)
  entries = entries.reject { |e| e[-1..-1] == '~' }
  entries = entries.reject do |e|
    (e != '_posts') and ['.', '_'].include?(e[0..0])
  end

  # we need to make sure to process _posts *first* otherwise they 
  # might not be available yet to other templates as {{ site.posts }}
  if entries.include?('_posts')
    entries.delete('_posts')
    read_posts(dir)
  end

  entries.each do |f|
    if File.directory?(File.join(base, f))
      next if self.dest.sub(/\/$/, '') == File.join(base, f)
      transform_pages(File.join(dir, f))
    else
      first3 = File.open(File.join(self.source, dir, f)) { |fd| fd.read(3) }

      if first3 == "---"
        # file appears to have a YAML header so process it as a page
        page = Page.new(self.source, dir, f)
        page.render(self.layouts, site_payload)
        page.write(self.dest)
      else
        # otherwise copy the file without transforming it
        FileUtils.mkdir_p(File.join(self.dest, dir))
        FileUtils.cp(File.join(self.source, dir, f), File.join(self.dest, dir, f))
      end
    end
  end
end

#write_posts ⇒ Object

Write each post to <dest>/<year>/<month>/<day>/<slug>

Returns nothing



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# File 'lib/jekyll/site.rb', line 82

def write_posts
  self.posts.each do |post|
    post.write(self.dest)
  end
end