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Versions: 15
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Contents
# frozen_string_literal: true
require 'listen/adapter/base'
require 'listen/adapter/bsd'
require 'listen/adapter/darwin'
require 'listen/adapter/linux'
require 'listen/adapter/polling'
require 'listen/adapter/windows'
module Listen
module Adapter
OPTIMIZED_ADAPTERS = [Darwin, Linux, BSD, Windows].freeze
POLLING_FALLBACK_MESSAGE = 'Listen will be polling for changes.'\
'Learn more at https://github.com/guard/listen#listen-adapters.'.freeze
class << self
def select(options = {})
Listen.logger.debug 'Adapter: considering polling ...'
return Polling if options[:force_polling]
Listen.logger.debug 'Adapter: considering optimized backend...'
return _usable_adapter_class if _usable_adapter_class
Listen.logger.debug 'Adapter: falling back to polling...'
_warn_polling_fallback(options)
Polling
rescue
Listen.logger.warn format('Adapter: failed: %s:%s', $ERROR_POSITION.inspect,
$ERROR_POSITION * "\n")
raise
end
private
def _usable_adapter_class
OPTIMIZED_ADAPTERS.detect(&:usable?)
end
def _warn_polling_fallback(options)
msg = options.fetch(:polling_fallback_message, POLLING_FALLBACK_MESSAGE)
Kernel.warn "[Listen warning]:\n #{msg}" if msg
end
end
end
end
Version data entries
15 entries across 15 versions & 2 rubygems