Module: CSS::Watcher

Defined in:
lib/css/watcher.rb

Overview

Watcher

The stylesheet watcher is in charge of monitoring modifications made to a specific stylesheet, then refreshing browsers appropriately while keeping your text editor in focus.

Defined Under Namespace

Classes: Error, NoWatchURLError

Constant Summary collapse

@@last_checked =

When the stylesheet was last checked for modifications.

0

Class Method Summary collapse

Class Method Details

.get_url_from_stylesheet(file) ⇒ Object

Parse url from file. This should be in the format of /* watch: example.com/path/ */ which is then used as the page to refresh to.

Raises:



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# File 'lib/css/watcher.rb', line 28

def get_url_from_stylesheet file
  url = $1.strip if File.read(file).match /watch: +((https?|file):\/\/.*?)\*\//i
  raise NoWatchURLError, "No '/* watch: url */' found in #{file}" if url.nil?
  url
end

.refresh_browsers_to_url(browsers, url) ⇒ Object

Refresh all browsers to the specified url.



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# File 'lib/css/watcher.rb', line 37

def refresh_browsers_to_url browsers, url
  browsers.each do |browser|
    system 'open -a %s %s --background' % [browser, url]
  end
end

.stylesheet_has_changed?(file) ⇒ Boolean

Check if a stylesheet has been modified within the last interval checked.



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# File 'lib/css/watcher.rb', line 47

def stylesheet_has_changed? file
  status = File.new(file).mtime.to_i > @@last_checked
  @@last_checked = Time.now.to_i
  status
end