linux_wrapper.rb in ramdo-0.1.4

- old
+ new

@@ -1,21 +1,17 @@
 module Ramdo
   module Ramdisk
     class LinuxWrapper
       def initialize
-        @shm_path = "/dev/shm"
-      end
-
-      def list
-        disks = []
-
-        found_shm = false
         line = Cocaine::CommandLine.new("cat", "/proc/mounts")
         line.run.each_line do |line|
-          found_shm ||= line =~ /^tmpfs \/dev\/shm tmpfs/
+          @shm_path = Regexp.last_match[1] if line =~ /(\/shm)[\s]tmpfs[\s]rw/
         end
-        raise GeneralRamdiskException.new("#{@shm_path} not found") unless found_shm
+        raise GeneralRamdiskException.new("shm path not found") unless @shm_path
+      end
 
+      def list
+        disks = []
         Dir.glob(@shm_path + '/*').each do |dir|
           if dir =~ Instance::NAME_PATTERN
             disks << Instance.new(path: dir, device: @shm_path, size: Filesize.from("1 GB"))
           end
         end