Class: Ramaze::Reloader::WatchStat

Inherits:

Object

• Object
• Ramaze::Reloader::WatchStat

show all

Defined in:

lib/ramaze/reloader/watch_stat.rb

Instance Method Summary (collapse)

• - (Object) call(cooldown)
• - (Object) changed_files

  return files changed since last call.

• - (Object) close

  no need for cleanup.

• - (WatchStat) initialize constructor

  A new instance of WatchStat.

• - (Object) remove_watch(file)

  stop watching a file for changes.

• - (Object) safe_stat(file)
• - (Object) watch(file)

  start watching a file for changes true if succeeded, false if failure.

• - (Boolean) watching?(file)

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# File 'lib/ramaze/reloader/watch_stat.rb', line 4

def initialize
  # @files[file_path] = stat
  @files = {}
  @last = Time.now
end

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# File 'lib/ramaze/reloader/watch_stat.rb', line 10

def call(cooldown)
  if cooldown and Time.now > @last + cooldown
    yield
    @last = Time.now
  end
end

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# File 'lib/ramaze/reloader/watch_stat.rb', line 40

def changed_files
  @files.each do |file, stat|
    if new_stat = safe_stat(file)
      if new_stat.mtime > stat.mtime
        @files[file] = new_stat
        yield(file)
      end
    end
  end
end

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# File 'lib/ramaze/reloader/watch_stat.rb', line 36

def close
end

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# File 'lib/ramaze/reloader/watch_stat.rb', line 31

def remove_watch(file)
  @files.delete(file)
end

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# File 'lib/ramaze/reloader/watch_stat.rb', line 51

def safe_stat(file)
  File.stat(file)
rescue Errno::ENOENT, Errno::ENOTDIR
  nil
end

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# File 'lib/ramaze/reloader/watch_stat.rb', line 19

def watch(file)
  return true if watching?(file) # if already watching
  if stat = safe_stat(file)
    @files[file] = stat
  end
end

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# File 'lib/ramaze/reloader/watch_stat.rb', line 26

def watching?(file)
  @files.has_key?(file)
end