61 lines
1.3 KiB
Ruby
61 lines
1.3 KiB
Ruby
require 'rbconfig'
|
|
|
|
module FSSM::Support
|
|
class << self
|
|
def backend
|
|
@@backend ||= case
|
|
when mac? && !jruby? && carbon_core?
|
|
'FSEvents'
|
|
when linux? && rb_inotify?
|
|
'Inotify'
|
|
else
|
|
'Polling'
|
|
end
|
|
end
|
|
|
|
def jruby?
|
|
defined?(JRUBY_VERSION)
|
|
end
|
|
|
|
def mac?
|
|
Config::CONFIG['target_os'] =~ /darwin/i
|
|
end
|
|
|
|
def linux?
|
|
Config::CONFIG['target_os'] =~ /linux/i
|
|
end
|
|
|
|
def carbon_core?
|
|
begin
|
|
require 'osx/foundation'
|
|
OSX.require_framework '/System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.framework'
|
|
true
|
|
rescue LoadError
|
|
STDERR.puts("Warning: Unable to load CarbonCore. FSEvents will be unavailable.")
|
|
false
|
|
end
|
|
end
|
|
|
|
def rb_inotify?
|
|
found = begin
|
|
require 'rb-inotify'
|
|
INotify::Notifier.ancestors.include?(IO)
|
|
rescue LoadError
|
|
false
|
|
end
|
|
STDERR.puts("Warning: Unable to load rb-inotify >= 0.3.0. Inotify will be unavailable.") unless found
|
|
found
|
|
end
|
|
|
|
def use_block(context, block)
|
|
return if block.nil?
|
|
if block.arity == 1
|
|
block.call(context)
|
|
else
|
|
context.instance_eval(&block)
|
|
end
|
|
end
|
|
|
|
end
|
|
end
|