Class: Ace::Item

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

Overview

This class represents the items which will be eventually rendered like concrete posts, tags etc.

Direct Known Subclasses

Asset, Static

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(metadata, content) ⇒ Item

Returns a new instance of Item.



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# File 'lib/ace.rb', line 103

def initialize(metadata, content)
  @metadata = metadata
  @content  = content
end

Instance Attribute Details

#content ⇒ Object

Content can be anything, not just a string.



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# File 'lib/ace.rb', line 101

def content
  @content
end

#metadata ⇒ Object

Content can be anything, not just a string.



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# File 'lib/ace.rb', line 101

def metadata
  @metadata
end

#original_path ⇒ Object

Returns the value of attribute original_path.



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# File 'lib/ace.rb', line 102

def original_path
  @original_path
end

#output_path ⇒ Object 



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# File 'lib/ace.rb', line 165

def output_path
  @output_path ||= begin
    unless self.original_path.nil?
      self.original_path.sub("content", "output")
    end
  end
end

Class Method Details

.after(filter, *args) ⇒ Object 



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# File 'lib/ace.rb', line 92

def self.after(filter, *args)
  self.after_filters << filter.new(*args)
end

.after_filters ⇒ Object 



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# File 'lib/ace.rb', line 88

def self.after_filters
  @after_filters ||= Array.new
end

.all_instances ⇒ Object 



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# File 'lib/ace.rb', line 76

def self.all_instances
  self.all_subclasses.map(&:instances).flatten
end

.all_subclasses ⇒ Object 



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# File 'lib/ace.rb', line 72

def self.all_subclasses
  self.subclasses + self.subclasses.map(&:subclasses).flatten
end

.before(filter, *args) ⇒ Object 



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# File 'lib/ace.rb', line 84

def self.before(filter, *args)
  self.before_filters << filter.new(*args)
end

.before_filters ⇒ Object 



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# File 'lib/ace.rb', line 80

def self.before_filters
  @before_filters ||= Array.new
end

.create(metadata, content) ⇒ Object 



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# File 'lib/ace.rb', line 96

def self.create(metadata, content)
  self.new(metadata, content).tap(&:register)
end

.inherited(subclass) ⇒ Object 



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# File 'lib/ace.rb', line 52

def self.inherited(subclass)
  self.subclasses << subclass

  self.before_filters.each do |instance|
    subclass.before_filters << instance.dup
  end

  self.after_filters.each do |instance|
    subclass.after_filters << instance.dup
  end
end

.instances ⇒ Object 



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# File 'lib/ace.rb', line 68

def self.instances
  @instances ||= Array.new
end

.subclasses ⇒ Object 



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# File 'lib/ace.rb', line 64

def self.subclasses
  @subclasses ||= [self]
end

Instance Method Details

#base_url ⇒ Object 



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# File 'lib/ace.rb', line 142

def base_url
  self.config[:base_url]
end

#config ⇒ Object 



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# File 'lib/ace.rb', line 108

def config
  @config ||= begin
    YAML::load_file("config.yml").inject(Hash.new) do |hash, pair|
      hash.merge!(pair[0].to_sym => pair[1])
    end
  end
end

#digest(data) ⇒ Object 



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# File 'lib/ace.rb', line 154

def digest(data)
  Digest::SHA1.hexdigest(data)
end

#feeds ⇒ Object 



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# File 'lib/ace.rb', line 158

def feeds
  @feeds ||= begin
    RSSFeed.subclasses.map(&:new)
  end
end

#permalink ⇒ Object 



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# File 'lib/ace.rb', line 146

def permalink
  if self.config[:base_url].nil?
    raise "You have to add :base_url into config.yml or redefine #base_url method!"
  end

  "#{self.base_url}#{self.server_path}"
end

#register ⇒ Object 



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# File 'lib/ace.rb', line 116

def register
  instances = self.class.instances
  unless instances.include?(self)
    self.class.instances << self
  end
end

#render ⇒ Object 



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# File 'lib/ace.rb', line 127

def render
  output = self.class.before_filters.inject(self.content) do |buffer, filter|
    filter.call(self, buffer)
  end

  self.class.after_filters.inject(output) do |buffer, filter|
    filter.call(self, buffer)
  end
end

#save! ⇒ Object 



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# File 'lib/ace.rb', line 173

def save!
  puts "~ [RENDER] #{self.output_path}"
  content = self.render # so filters can influence output_path

  begin
    old_content = File.open(self.output_path, "rb") { |f| f.read }
  rescue
    old_content = ''
  end

  if self.digest(content) != self.digest(old_content)
    warn "~ CRC isn't same, save new content into #{self.output_path}"
    # puts old_content.inspect
    # puts content.inspect

    FileUtils.mkdir_p File.dirname(self.output_path)
    File.open(self.output_path, "w") do |file|
      file.puts(content)
    end
  end
end

#server_path ⇒ Object 



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# File 'lib/ace.rb', line 137

def server_path
  absolute = self.output_path.sub(/^output\//, "")
  "/#{absolute}"
end

#unregister ⇒ Object 



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# File 'lib/ace.rb', line 123

def unregister
  self.class.instances.delete(self)
end