Class: Opal::Rails::FileWatcher

Inherits:
Object
  • Object
show all
Defined in:
lib/opal/rails/file_watcher.rb

Instance Method Summary collapse

Constructor Details

#initialize(files:, extra_directories: [], &callback) ⇒ FileWatcher 



8
9
10
11
12
 
# File 'lib/opal/rails/file_watcher.rb', line 8

def initialize(files:, extra_directories: [], &callback)
  @files = normalize_paths(files)
  @extra_directories = normalize_paths(extra_directories)
  @callback = callback
end

Instance Method Details

#start ⇒ Object 



14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
# File 'lib/opal/rails/file_watcher.rb', line 14

def start
  require 'listen'

  @listener = Listen.to(*directories) do |modified, added, removed|
    callback.call(
      modified: normalize_paths(modified),
      added: normalize_paths(added),
      removed: normalize_paths(removed)
    )
  end
  @listener.start
rescue LoadError
  raise Error, 'opal:watch requires the listen gem'
end

#stop ⇒ Object 



29
30
31
 
# File 'lib/opal/rails/file_watcher.rb', line 29

def stop
  @listener&.stop
end