Class: Waitress::LESSWatcher

Inherits:
Object
  • Object
show all
Defined in:
lib/waitress/util/less_watcher.rb

Constant Summary collapse

@@details = 
{}
@@mtimes = 
{}
@@watchtime = 
30

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(files, &action) ⇒ LESSWatcher

Returns a new instance of LESSWatcher.



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# File 'lib/waitress/util/less_watcher.rb', line 23

def initialize files, &action
  files.each { |x| @@details[x] = action }
end

Class Method Details

.check ⇒ Object 



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# File 'lib/waitress/util/less_watcher.rb', line 27

def self.check
  @@details.each do |file, action|
    m = mtime_including_imports(file)
    if (@@mtimes[file].nil?) || (m > @@mtimes[file])
      @@mtimes[file] = m
      action.call file
    end
  end
end

.mtime(file) ⇒ Object 



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# File 'lib/waitress/util/less_watcher.rb', line 18

def self.mtime(file)
  return 0 unless File.file?(file)
  File.mtime(file).to_i
end

.mtime_including_imports(file) ⇒ Object

Stolen from Guard



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# File 'lib/waitress/util/less_watcher.rb', line 38

def self.mtime_including_imports(file)
  mtimes = [mtime(file)]
  File.readlines(file).each do |line|
    next unless line =~ /^\s*@import ['"]([^'"]+)/

    imported = File.join(File.dirname(file), Regexp.last_match[1])

    mod_time = if imported =~ /\.le?ss$/
                 mtime(imported)
               else
                 [mtime("#{imported}.less"), mtime("#{imported}.lss")].max
               end
    mtimes << mod_time
  end
  mtimes.max
end

.set_time(time) ⇒ Object 



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# File 'lib/waitress/util/less_watcher.rb', line 14

def self.set_time time
  @@watchtime = time
end