file.rb in lux-fw-0.6.2

- old
+ new
@@ -1,9 +1,44 @@
 class File
   class << self
-    def change name
-      data = File.read(name)
-      data = yield data
-      File.write(name, data)
+    # write and create dir
+    def write_p file, data
+      path = file.split('/').reverse.drop(1).reverse.join('/')
+      FileUtils.mkdir_p(path) unless File.exist?(path)
+      self.write file, data
+      data
     end
+
+    def append path, content
+      File.open(path, 'a') do |f|
+        f.flock File::LOCK_EX
+        f.puts content
+      end
+    end
+
+    def ext name
+      out = name.to_s.split('.').last.to_s.downcase
+      [3,4].include?(out.length) ? out : nil
+    end
+
+    def delete? path
+      if File.exist?(path)
+        File.delete path
+        true
+      else
+        false
+      end
+    end
+
+    #  exit if File.is_locked?('tmp/test.lock')
+    def is_locked? lock_file
+      lock_fd = File.open(lock_file, File::RDWR|File::CREAT, 0644)
+
+      Timeout::timeout(0.1) do
+        lock_fd.flock(File::LOCK_EX)
+        return false
+      end
+    rescue Timeout::Error
+      return true
+    end
   end
-end
\ No newline at end of file
+end