Class: Rerun::OSXWatcher

Inherits:
Watcher show all
Defined in:
lib/osxwatcher.rb

Constant Summary

Constants inherited from Watcher

Watcher::CREATED, Watcher::DELETED, Watcher::MODIFIED

Instance Attribute Summary collapse

Attributes inherited from Watcher

#directories, #priority, #sleep_time

Instance Method Summary collapse

Methods inherited from Watcher

#add_directory, #add_file, #initialize, #join, #prime, #remove_directory, #remove_file

Constructor Details

This class inherits a constructor from Rerun::Watcher

Instance Attribute Details

#last_check ⇒ Object (readonly)

Returns the value of attribute last_check.



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# File 'lib/osxwatcher.rb', line 18

def last_check
  @last_check
end

#stream ⇒ Object (readonly)

Returns the value of attribute stream.



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# File 'lib/osxwatcher.rb', line 19

def stream
  @stream
end

#valid_extensions ⇒ Object (readonly)

Returns the value of attribute valid_extensions.



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# File 'lib/osxwatcher.rb', line 18

def valid_extensions
  @valid_extensions
end

Instance Method Details

#extract_changed_files_from_paths(paths) ⇒ Object 



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# File 'lib/osxwatcher.rb', line 73

def extract_changed_files_from_paths(paths)
  changed_files = []
  paths.each do |path|
    next if ignore_path?(path)
    Dir.glob(path + "*").each do |file|
      next if ignore_file?(file)
      changed_files << file if file_changed?(file)
    end
  end
  changed_files
end

#file_changed?(file) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/osxwatcher.rb', line 85

def file_changed?(file)
  File.stat(file).mtime > last_check
end

#file_extension(file) ⇒ Object 



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# File 'lib/osxwatcher.rb', line 97

def file_extension(file)
  file =~ /\.(\w+)$/ and $1
end

#ignore_file?(file) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/osxwatcher.rb', line 93

def ignore_file?(file)
  File.basename(file).index('.') == 0 or not valid_extension?(file)
end

#ignore_path?(path) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/osxwatcher.rb', line 89

def ignore_path?(path)
  path =~ /(?:^|\/)\.(git|svn)/
end

#split_paths(paths, num_events) ⇒ Object 



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# File 'lib/osxwatcher.rb', line 66

def split_paths(paths, num_events)
  paths.regard_as('*')
  rpaths = []
  num_events.times { |i| rpaths << paths[i] }
  rpaths
end

#start ⇒ Object 



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# File 'lib/osxwatcher.rb', line 21

def start
  prime
  timestamp_checked

  dirs = Array(directories.map{|d| d.dir})
  
  mac_callback = lambda do |stream, ctx, num_events, paths, marks, event_ids|
    examine
    # changed_files = extract_changed_files_from_paths(split_paths(paths, num_events))
    # timestamp_checked
    # puts "changed files:"
    # p changed_files
    # yield changed_files unless changed_files.empty?
  end

  @stream = OSX::FSEventStreamCreate(OSX::KCFAllocatorDefault, mac_callback, nil, dirs, OSX::KFSEventStreamEventIdSinceNow, @sleep_time, 0)
  raise "Failed to create stream" unless stream

  OSX::FSEventStreamScheduleWithRunLoop(stream, OSX::CFRunLoopGetCurrent(), OSX::KCFRunLoopDefaultMode)
  unless OSX::FSEventStreamStart(stream)
    raise "Failed to start stream"
  end

  @thread = Thread.new do
    begin
      OSX::CFRunLoopRun()
    rescue Interrupt
      OSX::FSEventStreamStop(stream)
      OSX::FSEventStreamInvalidate(stream)
      OSX::FSEventStreamRelease(stream)
      @stream = nil
    end
  end

  @thread.priority = @priority
end

#stop ⇒ Object 



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# File 'lib/osxwatcher.rb', line 58

def stop
  @thread.kill
end

#timestamp_checked ⇒ Object 



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# File 'lib/osxwatcher.rb', line 62

def timestamp_checked
  @last_check = Time.now
end

#valid_extension?(file) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/osxwatcher.rb', line 101

def valid_extension?(file)
  valid_extensions.nil? or valid_extensions.include?(file_extension(file))
end