64 lines
1.3 KiB
Ruby
64 lines
1.3 KiB
Ruby
|
require 'sys/uname'
|
||
|
|
|
||
|
|
module Guard
|
||
|
|
class Listener
|
||
|
|
attr_reader :last_event, :callback, :pipe
|
||
|
|
|
||
|
|
def initialize
|
||
|
|
update_last_event
|
||
|
|
end
|
||
|
|
|
||
|
|
def on_change(&block)
|
||
|
|
@callback = block
|
||
|
|
end
|
||
|
|
|
||
|
|
def start
|
||
|
|
@pipe = case Sys::Uname.sysname
|
||
|
|
when 'Darwin'
|
||
|
|
IO.popen("#{bin_path}/fsevent_watch .")
|
||
|
|
when 'Linux'
|
||
|
|
IO.popen("#{bin_path}/inotify_watch .")
|
||
|
|
end
|
||
|
|
watch_change
|
||
|
|
end
|
||
|
|
|
||
|
|
def stop
|
||
|
|
Process.kill("HUP", pipe.pid) if pipe
|
||
|
|
end
|
||
|
|
|
||
|
|
private
|
||
|
|
|
||
|
|
def watch_change
|
||
|
|
while !pipe.eof?
|
||
|
|
if line = pipe.readline
|
||
|
|
modified_dirs = line.split(" ")
|
||
|
|
files = modified_files(modified_dirs)
|
||
|
|
update_last_event
|
||
|
|
callback.call(files)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
def modified_files(dirs)
|
||
|
|
files = potentially_modified_files(dirs).select { |file| recent_file?(file) }
|
||
|
|
files.map! { |file| file.gsub("#{Dir.pwd}/", '') }
|
||
|
|
end
|
||
|
|
|
||
|
|
def potentially_modified_files(dirs)
|
||
|
|
Dir.glob(dirs.map { |dir| "#{dir}*" })
|
||
|
|
end
|
||
|
|
|
||
|
|
def recent_file?(file)
|
||
|
|
File.mtime(file) >= last_event
|
||
|
|
end
|
||
|
|
|
||
|
|
def update_last_event
|
||
|
|
@last_event = Time.now
|
||
|
|
end
|
||
|
|
|
||
|
|
def bin_path
|
||
|
|
File.expand_path(File.join(File.dirname(__FILE__), '..', '..', 'bin'))
|
||
|
|
end
|
||
|
|
|
||
|
|
end
|
||
|
|
end
|