Class: Compass::Commands::WatchProject

Inherits:
UpdateProject show all
Defined in:
lib/compass/commands/watch_project.rb

Instance Attribute Summary collapse

Attributes inherited from ProjectBase

#options, #project_name

Attributes inherited from Base

#options, #working_path

Attributes included from Actions

#logger

Instance Method Summary collapse

Methods inherited from UpdateProject

#initialize, #new_compiler_instance

Methods inherited from ProjectBase

#execute, #initialize

Methods inherited from Base

#execute, #initialize

Methods included from Actions

#basename, #compile, #copy, #directory, #relativize, #remove, #separate, #strip_trailing_separator, #write_file

Constructor Details

This class inherits a constructor from Compass::Commands::UpdateProject

Instance Attribute Details

#last_sass_files ⇒ Object

Returns the value of attribute last_sass_files.



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# File 'lib/compass/commands/watch_project.rb', line 10

def last_sass_files
  @last_sass_files
end

#last_update_time ⇒ Object

Returns the value of attribute last_update_time.



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# File 'lib/compass/commands/watch_project.rb', line 10

def last_update_time
  @last_update_time
end

Instance Method Details

#perform ⇒ Object 



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# File 'lib/compass/commands/watch_project.rb', line 12

def perform
  Signal.trap("INT") do
    puts ""
    exit 0
  end
  puts ">>> Compass is watching for changes. Press Ctrl-C to Stop."
  loop do
    # TODO: Make this efficient by using filesystem monitoring.
    compiler = new_compiler_instance(:quiet => true)
    remove_obsolete_css(compiler)
    recompile(compiler)
    sleep 1
  end
end

#recompile(compiler) ⇒ Object 



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# File 'lib/compass/commands/watch_project.rb', line 37

def recompile(compiler)
  if file = compiler.out_of_date?
    begin
      puts ">>> Change detected to: #{file}"
      compiler.run
    rescue StandardError => e
      ::Compass::Exec.report_error(e, options)
    end
  end
end

#remove_obsolete_css(compiler) ⇒ Object 



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# File 'lib/compass/commands/watch_project.rb', line 27

def remove_obsolete_css(compiler)
  sass_files = compiler.sass_files
  deleted_sass_files = (last_sass_files || []) - sass_files
  deleted_sass_files.each do |deleted_sass_file|
    css_file = compiler.corresponding_css_file(deleted_sass_file)
    remove(css_file) if File.exists?(css_file)
  end
  self.last_sass_files = sass_files
end