Class: Rivendell::Import::ConfigLoader

Inherits:
Object
  • Object
show all
Defined in:
lib/rivendell/import/config_loader.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file, auto_reload = false) ⇒ ConfigLoader

Returns a new instance of ConfigLoader.



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# File 'lib/rivendell/import/config_loader.rb', line 7

def initialize(file, auto_reload = false)
  self.file = file
  self.auto_reload = auto_reload
end

Instance Attribute Details

#auto_reload ⇒ Object Also known as: auto_reload?

Returns the value of attribute auto_reload.



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# File 'lib/rivendell/import/config_loader.rb', line 4

def auto_reload
  @auto_reload
end

#file ⇒ Object

Returns the value of attribute file.



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# File 'lib/rivendell/import/config_loader.rb', line 4

def file
  @file
end

Instance Method Details

#absolute_path ⇒ Object 



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# File 'lib/rivendell/import/config_loader.rb', line 53

def absolute_path
  ::File.expand_path(file)
end

#basename ⇒ Object 



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# File 'lib/rivendell/import/config_loader.rb', line 57

def basename
  ::File.basename(file)
end

#current_config ⇒ Object 



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# File 'lib/rivendell/import/config_loader.rb', line 16

def current_config
  ::File.read file
end

#directory ⇒ Object 



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# File 'lib/rivendell/import/config_loader.rb', line 61

def directory
  ::File.dirname(file)
end

#listen_file ⇒ Object 



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# File 'lib/rivendell/import/config_loader.rb', line 24

def listen_file
  return unless auto_reload?

  callback = Proc.new do |modified, added, removed|
    Rivendell::Import.logger.debug "Configuration changed ? #{[modified, added, removed].inspect}"
    if modified.include? absolute_path
      Rivendell::Import.logger.info "Configuration changed, reload it"
      load
    end
  end

  Rivendell::Import.logger.info "Listen to config file changes (#{file})"
  Listen.to(directory).filter(/^#{basename}$/).change(&callback).start
end

#listen_file_with_inotify ⇒ Object 



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# File 'lib/rivendell/import/config_loader.rb', line 39

def listen_file_with_inotify
  require 'rb-inotify'

  notifier = INotify::Notifier.new.watch(file, :modify) do
    Rivendell::Import.logger.info "Configuration changed, reload it"
    load
  end

  Thread.new do
    Rivendell::Import.logger.info "Listen to config modification (#{file})"
    notifier.run
  end
end

#load ⇒ Object 



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# File 'lib/rivendell/import/config_loader.rb', line 12

def load
  Kernel.load file
end

#save(config) ⇒ Object 



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# File 'lib/rivendell/import/config_loader.rb', line 20

def save(config)
  ::File.write absolute_path, config
end