Class: Ginsu::Knife

Inherits:
Object
  • Object
show all
Defined in:
lib/ginsu/knife.rb,
lib/ginsu/config.rb

Constant Summary collapse

@@defaults = 
{ 
  :source => 'static',
  :partials => [],
  :pages => [],
  :templates => [],
  :links => [],
  :folders => []
}
@@config = 
Ginsu::Config.new(@@defaults)

Class Method Summary collapse

Class Method Details

.configure {|@@config| ... } ⇒ Object

Yields to given block to configure the Ginsu.

Yields:

  • (@@config)

Raises:

  • (ArgumentError) 


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# File 'lib/ginsu/config.rb', line 41

def configure(&block)
  raise ArgumentError, "Block must be provided to configure" unless block_given?
  yield @@config
end

.folders ⇒ Object 



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# File 'lib/ginsu/knife.rb', line 123

def self.folders
  @@config.folders.each do |folder|

    source = File.join(FileUtils.pwd, @@config.source, folder[:static])
    destination = File.join('public', folder[:static])

    puts "Purging '#{destination}'..."

    FileUtils.rm_rf destination
    
    puts "Recursively copying '#{source}' to '#{destination}'..."

    puts "Each folder requires a :static parameter with the name of the static resource" +
         "    to copy to the public/ directory in your Rails application." if
         folder[:static].blank?

    FileUtils.cp_r source, destination
    
  end
end

.links ⇒ Object 



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# File 'lib/ginsu/knife.rb', line 106

def self.links
  @@config.links.each do |link|

    source = File.join(FileUtils.pwd, @@config.source, link[:static])
    destination = File.join('public', link[:static])

    puts "Linking '#{source}' to '#{destination}'..."

    puts "Each link requires a :static parameter with the name of the static resource" +
         "    to link to the public/ directory in your Rails application." if
         link[:static].blank?

    FileUtils.ln_s source, destination, :force => true unless File.exists? destination
    
  end
end

.pages(parameters = nil) ⇒ Object 



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# File 'lib/ginsu/knife.rb', line 12

def self.pages parameters=nil
  files = (parameters and parameters[:partials]) ? @@config.partials : @@config.pages
  files.each do |file|

    # These should probably raise errors.
    puts "Error: Each file requires a :static parameter to specify the source file." if
      file[:static].blank?
    puts "Error: Each file requires a :search parameter with a search string." if
      file[:search].blank?
    puts "Error: Each file requires a :partial parameter with the name of the destination template." if
      file[:partial].blank?

    # Open the static source HTML file.
    static_source_string = ''
    static_source_path = File.join(@@config.source, file[:static])
    File.open(static_source_path, "r") { |f|
      static_source_string = ''
      # Run a proc on each line?
      if file[:do]
        f.each {|line| static_source_string << file[:do].call(line)}
      else
        static_source_string = f.read
      end
    }
    static_source = Hpricot(static_source_string)

    # Use Hpricot to slice out the desired element.
    found = static_source.search(file[:search]).first

    # Make sure that the target folder exists.
    unless File.exists?(target_folder = File.join('app/views/', File.dirname(file[:partial])))
      Dir.mkdir(target_folder)
    end

    # Drop that found string into the appropriate partial.
    target_filename = file[:partial]
    puts "Slicing '#{target_filename}' from '#{static_source_path}'..."
    target_filename.gsub!(/\/([^\_][^\/]+$)/) {|string| '/_' + $1 } if
      parameters and parameters[:partials]
    target_filename += '.html.erb' unless target_filename =~ /\./
    target_filename = File.join('app/views/', target_filename)
    File.open(target_filename, 'w') do |f|
      f.write(found)
    end
    
  end
end

.partials ⇒ Object 



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# File 'lib/ginsu/knife.rb', line 60

def self.partials
  self.pages :partials => true
end

.slice ⇒ Object 



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# File 'lib/ginsu/knife.rb', line 4

def self.slice
  self.partials
  self.pages
  self.templates
  self.links
  self.folders
end

.templates(parameters = nil) ⇒ Object 



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# File 'lib/ginsu/knife.rb', line 64

def self.templates parameters=nil
  files = @@config.templates
  files.each do |file|

    # These should probably raise errors.
    puts "Error: Each file requires a :static parameter to specify the source file." if
      file[:static].blank?
    puts "Error: Each file requires a :search parameter with a search string." if
      file[:search].blank?
    puts "Error: Each file requires a :template parameter with the name of the destination template." if
      file[:template].blank?

    # Open the static source HTML file.
    static_source_string = ''
    static_source_path = File.join(@@config.source, file[:static])
    File.open(static_source_path, "r") { |f|
      static_source_string = ''
      # Run a proc on each line?
      if file[:do]
        f.each {|line| static_source_string << file[:do].call(line)}
      else
        static_source_string = f.read
      end
    }
    static_source = Hpricot(static_source_string)

    # Use Hpricot to replace the desired element.
    static_source.at(file[:search]).swap(file[:replace])
    found = static_source.to_original_html

    # Drop that found string into the appropriate partial.
    target_filename = file[:template]
    puts "Slicing template '#{target_filename}' from '#{static_source_path}'..."
    target_filename += '.html.erb' unless target_filename =~ /\./
    target_filename = File.join('app/views/layouts', target_filename)
    File.open(target_filename, 'w') do |f|
      f.write(found)
    end
    
  end
end