- Don't use File::Tail anymore

lib/file/tail/since.rb

@@ -1,98 +0,0 @@
-require 'rubygems'
-require 'file/tail'
-require 'yaml'
-
-class File; module Tail; 
-
-  class SinceState
-    attr_reader :inode
-    attr_reader :pos
-    attr_reader :mtime
-    attr_reader :dev 
-
-    def update(file)
-      @pos = file.pos
-      stat = file.stat
-
-      @inode = stat.ino
-      @mtime = stat.mtime.to_i
-      @dev = stat.dev
-    end
-  end
-
-  class Since < File::Tail::Logfile
-    attr_accessor :statefile
-
-    def initialize(filename)
-      super(filename)
-      statename = "#{Process.uid}.#{filename.gsub(File::SEPARATOR, ",")}"
-      @dir = "/var/run/rb_since/"
-      if !File.writable?(@dir) 
-        @dir = "#{ENV["HOME"]}/.rb_since_d"
-        if !File.exists?(@dir)
-          Dir.mkdir(@dir)
-        end
-      end
-      @statefile = "#{@dir}/#{statename}"
-      load_state
-    end
-
-    def tail(n = nil, &block)
-      super(n) do |*args|
-        yield *args
-        save_state
-      end
-    end
-
-    def lock_state(fd, &block)
-      fd.flock(File::LOCK_EX)
-      yield
-      fd.flock(File::LOCK_UN)
-    end
-
-    def load_state
-      if !File.exist?(@statefile)
-        return Hash.new
-      end
-
-      statefd = File.open(@statefile, "r");
-      lock_state(statefd) do
-        data = (YAML::load(statefd.read()) or Hash.new)
-        if data.has_key?(path)
-          state = data[path]
-          fstat = stat
-          if fstat.ino == state.inode && fstat.dev == state.dev
-            #$stdout.puts "Seek to #{state.pos}"
-            seek(state.pos, File::SEEK_SET)
-          end
-        end
-      end
-      statefd.close
-    end
-
-    def save_state
-      statefd = File.open(@statefile, "w+");
-      lock_state(statefd) do
-        # TODO(sissel): We should catch load/read exceptions
-        data = (YAML::load(statefd.read()) or Hash.new)
-        if !data.has_key?(path)
-          data[path] = SinceState.new
-        end
-
-        data[path].update(self)
-
-        statefd.truncate(0)
-        statefd.seek(0, File::SEEK_SET)
-        statefd.write(data.to_yaml)
-      end
-      statefd.close()
-    end
-  end # class Since
-
-end; end; # File::Tail
-
-if $0 == __FILE__
-  File::Tail::Since.new("/var/log/messages").tail do |line|
-    puts line
-  end
-end