Upgrade the vendored version of FSSM to 0.1.0, this fixes some bugs with jruby and adds inotify support for linux.

lib/vendor/fssm.rb

@@ -28,9 +28,8 @@ module FSSM
 end
 
 require 'thread'
-require 'pathname'
 
-require 'fssm/ext'
+require 'fssm/pathname'
 require 'fssm/support'
 require 'fssm/tree'
 require 'fssm/path'

lib/vendor/fssm/backends/fsevents.rb

@@ -1,4 +1,4 @@
-require 'fssm/fsevents'
+require File.join(File.dirname(__FILE__), 'rubycocoa/fsevents')
 
 module FSSM::Backends
   class FSEvents

lib/vendor/fssm/backends/inotify.rb

@@ -0,0 +1,25 @@
+module FSSM::Backends
+  class Inotify
+    def initialize
+      @notifier = INotify::Notifier.new
+    end
+
+    def add_path(path, preload=true)
+      handler = FSSM::State.new(path)
+
+      @notifier.watch(path.to_s, :all_events) do |event|
+        handler.refresh(event.name)
+      end
+
+      handler.refresh(path.to_pathname, true) if preload
+    end
+
+    def run
+      begin
+        @notifier.run
+      rescue Interrupt
+      end
+    end
+
+  end
+end

lib/vendor/fssm/backends/polling.rb

@@ -1,8 +1,8 @@
 module FSSM::Backends
   class Polling
     def initialize(options={})
-      @handlers  = []
+      @handlers = []
-      @latency   = options[:latency]   || 1
+      @latency = options[:latency] || 1.5
     end
 
     def add_path(path, preload=true)

lib/vendor/fssm/backends/rubycocoa/fsevents.rb

@@ -6,6 +6,7 @@ module Rucola
       attr_reader :fsevents_object
       attr_reader :id
       attr_reader :path
+
       def initialize(fsevents_object, id, path)
         @fsevents_object, @id, @path = fsevents_object, id, path
       end
@@ -22,7 +23,8 @@ module Rucola
       end
     end
 
-    class StreamError < StandardError; end
+    class StreamError < StandardError;
+    end
 
     attr_reader :paths
     attr_reader :stream
@@ -91,11 +93,11 @@ module Rucola
       paths.each { |path| raise ArgumentError, "The specified path (#{path}) does not exist." unless File.exist?(path) }
 
       @allocator = options[:allocator] || OSX::KCFAllocatorDefault
-      @context   = options[:context]   || nil
+      @context = options[:context] || nil
-      @since     = options[:since]     || OSX::KFSEventStreamEventIdSinceNow
+      @since = options[:since] || OSX::KFSEventStreamEventIdSinceNow
-      @latency   = options[:latency]   || 0.0
+      @latency = options[:latency] || 0.0
-      @flags     = options[:flags]     || 0
+      @flags = options[:flags] || 0
-      @stream    = options[:stream]    || nil
+      @stream = options[:stream] || nil
 
       @user_callback = block
       @callback = Proc.new do |stream, client_callback_info, number_of_events, paths_pointer, event_flags, event_ids|

lib/vendor/fssm/cache.rb

@@ -1,193 +0,0 @@
-class FSSM::Cache
-  module Common
-    include Enumerable
-
-    def initialize
-      @children = Hash.new
-    end
-
-    def each(prefix='./', &block)
-      @children.each do |segment, node|
-        cprefix = Pathname.for(prefix.dup).join(segment)
-        block.call(cprefix, node)
-        node.each(cprefix, &block)
-      end
-    end
-
-    protected
-    
-    def with_lock
-      @mutex.lock
-      yield
-      @mutex.unlock
-    end
-    
-    def descendant(path)
-      recurse_on_key(path, false)
-    end
-
-    def descendant!(path)
-      recurse_on_key(path, true)
-    end
-
-    def child(segment)
-      has_child?(segment) ? @children["#{segment}"] : nil
-    end
-
-    def child!(segment)
-      (@children["#{segment}"] ||= Node.new)
-    end
-
-    def has_child?(segment)
-      @children.include?("#{segment}")
-    end
-
-    def remove_child(segment)
-      @children.delete("#{segment}")
-    end
-
-    def remove_children
-      @children.clear
-    end
-
-    def recurse_on_key(key, create)
-      key = sanitize_key(key)
-      node = self
-
-      until key.empty?
-        segment = key.shift
-        node = create ? node.child!(segment) : node.child(segment)
-        return nil unless node
-      end
-
-      node
-    end
-
-    def key_for_path(path)
-      Pathname.for(path).names
-    end
-
-    def relative_path(path)
-      sanitize_path(path, false)
-    end
-
-    def absolute_path(path)
-      sanitize_path(path, true)
-    end
-
-    def sanitize_path(path, absolute)
-      if path.is_a?(Array)
-        first = absolute ? '/' : path.shift
-        path = path.inject(Pathname.new("#{first}")) do |pathname, segment|
-          pathname.join("#{segment}")
-        end
-        path
-      else
-        path = Pathname.for(path)
-        absolute ? path.expand_path : path
-      end
-    end
-  end
-
-  class Node
-    include Common
-    
-    attr_accessor :mtime
-    attr_accessor :ftype
-
-    def <=>(other)
-      self.mtime <=> other.mtime
-    end
-
-    def from_path(path)
-      path = absolute_path(path)
-      @mtime = path.mtime
-      @ftype = path.ftype
-    end
-
-    protected
-
-    def sanitize_key(key)
-      key_for_path(relative_path(key))
-    end
-  end
-
-  include Common
-  
-  def initialize
-    @mutex = Mutex.new
-    super
-  end
-
-  def clear
-    @mutex.lock
-    @children.clear
-    @mutex.unlock
-  end
-
-  def set(path)
-    unset(path)
-    node = descendant!(path)
-    node.from_path(path)
-    node.mtime
-  end
-
-  def unset(path='/')    
-    key = sanitize_key(path)
-
-    if key.empty?
-      self.clear
-      return nil
-    end
-    
-    segment = key.pop
-    node = descendant(key)
-
-    return unless node
-    
-    @mutex.lock
-    node.remove_child(segment)
-    @mutex.unlock    
-    
-    nil
-  end
-
-  def files
-    ftype('file')
-  end
-
-  def directories
-    ftype('directory')
-  end
-
-  protected
-  
-  def each(&block)
-    prefix='/'
-    super(prefix, &block)
-  end
-
-  def ftype(ft)
-    inject({}) do |hash, entry|
-      path, node = entry
-      hash["#{path}"] = node.mtime if node.ftype == ft
-      hash
-    end
-  end
-  
-  def descendant(path)
-    node = recurse_on_key(path, false)
-    node
-  end
-
-  def descendant!(path)
-    @mutex.lock
-    node = recurse_on_key(path, true)
-    @mutex.unlock
-    node
-  end
-
-  def sanitize_key(key)
-    key_for_path(absolute_path(key))
-  end
-end

lib/vendor/fssm/ext.rb

@@ -1,37 +0,0 @@
-class Pathname
-  class << self
-    def for(path)
-      path.is_a?(Pathname) ? path : new(path)
-    end
-  end
-  
-  # before overwriting chop_basename:
-  #   %total - 29.50%
-  #   %self - 20.50%
-  # after overwriting chop_basename:
-  #   %total - 24.36%
-  #   %self - 15.47%
-  CHOP_PAT = /\A#{SEPARATOR_PAT}?\z/
-  def chop_basename(path)
-    base = File.basename(path)
-    # the original version of this method recalculates this regexp
-    # each run, despite the pattern never changing.
-    if CHOP_PAT =~ base
-      return nil
-    else
-      return path[0, path.rindex(base)], base
-    end
-  end
-  
-  def segments
-    prefix, names = split_names(@path)
-    names.unshift(prefix) unless prefix.empty?
-    names.shift if names[0] == '.'
-    names
-  end
-  
-  def names
-    prefix, names = split_names(@path)
-    names
-  end
-end

lib/vendor/fssm/path.rb

@@ -75,14 +75,14 @@ class FSSM::Path
   end
 
   def split_path(path)
-    path = Pathname.for(path)
+    path = FSSM::Pathname.for(path)
     [@path, (path.relative? ? path : path.relative_path_from(@path))]
   end
 
   def set_path(path)
-    path = Pathname.for(path)
+    path = FSSM::Pathname.for(path)
     raise FSSM::FileNotFoundError, "#{path}" unless path.exist?
-    @path = path.realpath
+    @path = path.expand_path
   end
 
   def set_glob(glob)

lib/vendor/fssm/pathname.rb

@@ -0,0 +1,528 @@
+# The bundled ruby pathname library is a slow and hideous beast.
+# There. I said it. This version is based on pathname3.
+
+module FSSM
+  class Pathname < String
+
+    SEPARATOR = Regexp.quote(File::SEPARATOR)
+
+    if File::ALT_SEPARATOR
+      ALT_SEPARATOR = Regexp.quote(File::ALT_SEPARATOR)
+      SEPARATOR_PAT = Regexp.compile("[#{SEPARATOR}#{ALT_SEPARATOR}]")
+    else
+      SEPARATOR_PAT = Regexp.compile(SEPARATOR)
+    end
+
+    if RUBY_PLATFORM =~ /(:?mswin|mingw|bccwin)/
+      PREFIX_PAT = Regexp.compile("^([A-Za-z]:#{SEPARATOR_PAT})")
+    else
+      PREFIX_PAT = Regexp.compile("^(#{SEPARATOR_PAT})")
+    end
+
+    class << self
+      def for(path)
+        path = path.is_a?(::FSSM::Pathname) ? path : new(path)
+        path.dememo
+        path
+      end
+    end
+
+    def initialize(path)
+      if path =~ %r{\0}
+        raise ArgumentError, "path cannot contain ASCII NULLs"
+      end
+
+      dememo
+
+      super(path)
+    end
+
+    def to_path
+      self
+    end
+
+    def to_s
+      "#{self}"
+    end
+
+    alias to_str to_s
+
+    def to_a
+      return @segments if @segments
+      set_prefix_and_names
+      @segments = @names.dup
+      @segments.delete('.')
+      @segments.unshift(@prefix) unless @prefix.empty?
+      @segments
+    end
+
+    alias segments to_a
+
+    def each_filename(&block)
+      to_a.each(&block)
+    end
+
+    def ascend
+      parts = to_a
+      parts.length.downto(1) do |i|
+        yield self.class.join(parts[0, i])
+      end
+    end
+
+    def descend
+      parts = to_a
+      1.upto(parts.length) do |i|
+        yield self.class.join(parts[0, i])
+      end
+    end
+
+    def root?
+      set_prefix_and_names
+      @names.empty? && !@prefix.empty?
+    end
+
+    def parent
+      self + '..'
+    end
+
+    def relative?
+      set_prefix_and_names
+      @prefix.empty?
+    end
+
+    def absolute?
+      !relative?
+    end
+
+    def +(path)
+      dup << path
+    end
+
+    def <<(path)
+      replace(join(path).cleanpath!)
+    end
+
+    def cleanpath!
+      parts = to_a
+      final = []
+
+      parts.each do |part|
+        case part
+          when '.' then
+            next
+          when '..' then
+            case final.last
+              when '..' then
+                final.push('..')
+              when nil then
+                final.push('..')
+              else
+                final.pop
+            end
+          else
+            final.push(part)
+        end
+      end
+
+      replace(final.empty? ? Dir.pwd : File.join(*final))
+    end
+
+    def cleanpath
+      dup.cleanpath!
+    end
+
+    def realpath
+      raise unless self.exist?
+
+      if File.symlink?(self)
+        file = self.dup
+
+        while true
+          file = File.join(File.dirname(file), File.readlink(file))
+          break unless File.symlink?(file)
+        end
+
+        self.class.new(file).clean
+      else
+        self.class.new(Dir.pwd) + self
+      end
+    end
+
+    def relative_path_from(base)
+      base = self.class.for(base)
+
+      if self.absolute? != base.absolute?
+        raise ArgumentError, 'no relative path between a relative and absolute'
+      end
+
+      if self.prefix != base.prefix
+        raise ArgumentError, "different prefix: #{@prefix.inspect} and #{base.prefix.inspect}"
+      end
+
+      base = base.cleanpath!.segments
+      dest = dup.cleanpath!.segments
+
+      while !dest.empty? && !base.empty? && dest[0] == base[0]
+        base.shift
+        dest.shift
+      end
+
+      base.shift if base[0] == '.'
+      dest.shift if dest[0] == '.'
+
+      if base.include?('..')
+        raise ArgumentError, "base directory may not contain '..'"
+      end
+
+      path = base.fill('..') + dest
+      path = self.class.join(*path)
+      path = self.class.new('.') if path.empty?
+
+      path
+    end
+
+    def replace(path)
+      if path =~ %r{\0}
+        raise ArgumentError, "path cannot contain ASCII NULLs"
+      end
+
+      dememo
+
+      super(path)
+    end
+
+    def unlink
+      Dir.unlink(self)
+      true
+    rescue Errno::ENOTDIR
+      File.unlink(self)
+      true
+    end
+
+    def prefix
+      set_prefix_and_names
+      @prefix
+    end
+
+    def names
+      set_prefix_and_names
+      @names
+    end
+
+    def dememo
+      @set = nil
+      @segments = nil
+      @prefix = nil
+      @names = nil
+    end
+
+    private
+
+    def set_prefix_and_names
+      return if @set
+
+      @names = []
+
+      if (match = PREFIX_PAT.match(self))
+        @prefix = match[0].to_s
+        @names += match.post_match.split(SEPARATOR_PAT)
+      else
+        @prefix = ''
+        @names += self.split(SEPARATOR_PAT)
+      end
+
+      @names.compact!
+      @names.delete('')
+
+      @set = true
+    end
+
+  end
+
+  class Pathname
+    class << self
+      def glob(pattern, flags=0)
+        dirs = Dir.glob(pattern, flags)
+        dirs.map! {|path| new(path)}
+
+        if block_given?
+          dirs.each {|dir| yield dir}
+          nil
+        else
+          dirs
+        end
+      end
+
+      def [](pattern)
+        Dir[pattern].map! {|path| new(path)}
+      end
+
+      def pwd
+        new(Dir.pwd)
+      end
+    end
+
+    def entries
+      Dir.entries(self).map! {|e| FSSM::Pathname.new(e) }
+    end
+
+    def mkdir(mode = 0777)
+      Dir.mkdir(self, mode)
+    end
+
+    def opendir(&blk)
+      Dir.open(self, &blk)
+    end
+
+    def rmdir
+      Dir.rmdir(self)
+    end
+
+    def chdir
+      blk = lambda { yield self } if block_given?
+      Dir.chdir(self, &blk)
+    end
+  end
+
+  class Pathname
+    def blockdev?
+      FileTest.blockdev?(self)
+    end
+
+    def chardev?
+      FileTest.chardev?(self)
+    end
+
+    def directory?
+      FileTest.directory?(self)
+    end
+
+    def executable?
+      FileTest.executable?(self)
+    end
+
+    def executable_real?
+      FileTest.executable_real?(self)
+    end
+
+    def exists?
+      FileTest.exists?(self)
+    end
+
+    def file?
+      FileTest.file?(self)
+    end
+
+    def grpowned?
+      FileTest.grpowned?(self)
+    end
+
+    def owned?
+      FileTest.owned?(self)
+    end
+
+    def pipe?
+      FileTest.pipe?(self)
+    end
+
+    def readable?
+      FileTest.readable?(self)
+    end
+
+    def readable_real?
+      FileTest.readable_real?(self)
+    end
+
+    def setgid?
+      FileTest.setgit?(self)
+    end
+
+    def setuid?
+      FileTest.setuid?(self)
+    end
+
+    def socket?
+      FileTest.socket?(self)
+    end
+
+    def sticky?
+      FileTest.sticky?(self)
+    end
+
+    def symlink?
+      FileTest.symlink?(self)
+    end
+
+    def world_readable?
+      FileTest.world_readable?(self)
+    end
+
+    def world_writable?
+      FileTest.world_writable?(self)
+    end
+
+    def writable?
+      FileTest.writable?(self)
+    end
+
+    def writable_real?
+      FileTest.writable_real?(self)
+    end
+
+    def zero?
+      FileTest.zero?(self)
+    end
+
+    alias exist? exists?
+  end
+
+  class Pathname
+    def atime
+      File.atime(self)
+    end
+
+    def ctime
+      File.ctime(self)
+    end
+
+    def ftype
+      File.ftype(self)
+    end
+
+    def lstat
+      File.lstat(self)
+    end
+
+    def mtime
+      File.mtime(self)
+    end
+
+    def stat
+      File.stat(self)
+    end
+
+    def utime(atime, mtime)
+      File.utime(self, atime, mtime)
+    end
+  end
+
+  class Pathname
+    class << self
+      def join(*parts)
+        new(File.join(*parts.reject {|p| p.empty? }))
+      end
+    end
+
+    def basename
+      self.class.new(File.basename(self))
+    end
+
+    def chmod(mode)
+      File.chmod(mode, self)
+    end
+
+    def chown(owner, group)
+      File.chown(owner, group, self)
+    end
+
+    def dirname
+      self.class.new(File.dirname(self))
+    end
+
+    def expand_path(from = nil)
+      self.class.new(File.expand_path(self, from))
+    end
+
+    def extname
+      File.extname(self)
+    end
+
+    def fnmatch?(pat, flags = 0)
+      File.fnmatch(pat, self, flags)
+    end
+
+    def join(*parts)
+      self.class.join(self, *parts)
+    end
+
+    def lchmod(mode)
+      File.lchmod(mode, self)
+    end
+
+    def lchown(owner, group)
+      File.lchown(owner, group, self)
+    end
+
+    def link(to)
+      File.link(self, to)
+    end
+
+    def open(mode = 'r', perm = nil, &blk)
+      File.open(self, mode, perm, &blk)
+    end
+
+    def readlink
+      self.class.new(File.readlink(self))
+    end
+
+    def rename(to)
+      File.rename(self, to)
+      replace(to)
+    end
+
+    def size
+      File.size(self)
+    end
+
+    def size?
+      File.size?(self)
+    end
+
+    def symlink(to)
+      File.symlink(self, to)
+    end
+
+    def truncate
+      File.truncate(self)
+    end
+  end
+
+  class Pathname
+    def mkpath
+      self.class.new(FileUtils.mkpath(self))
+    end
+
+    def rmtree
+      self.class.new(FileUtils.rmtree(self).first)
+    end
+
+    def touch
+      self.class.new(FileUtils.touch(self).first)
+    end
+  end
+
+  class Pathname
+    def each_line(sep = $/, &blk)
+      IO.foreach(self, sep, &blk)
+    end
+
+    def read(len = nil, off = 0)
+      IO.read(self, len, off)
+    end
+
+    def readlines(sep = $/)
+      IO.readlines(self, sep)
+    end
+
+    def sysopen(mode = 'r', perm = nil)
+      IO.sysopen(self, mode, perm)
+    end
+  end
+
+  class Pathname
+    def find
+      Find.find(self) {|path| yield FSSM::Pathname.new(path) }
+    end
+  end
+
+end

lib/vendor/fssm/state.rb

@@ -32,7 +32,7 @@ class FSSM::State
   end
 
   def recache(base)
-    base = Pathname.for(base)
+    base = FSSM::Pathname.for(base)
     previous = @cache.files
     snapshot(base)
     current = @cache.files
@@ -40,13 +40,13 @@ class FSSM::State
   end
 
   def snapshot(base)
-    base = Pathname.for(base)
+    base = FSSM::Pathname.for(base)
     @cache.unset(base)
     @path.glob.each {|glob| add_glob(base, glob)}
   end
 
   def add_glob(base, glob)
-    Pathname.glob(base.join(glob).to_s).each do |fn|
+    FSSM::Pathname.glob(base.join(glob).to_s).each do |fn|
       @cache.set(fn)
     end
   end

lib/vendor/fssm/support.rb

@@ -1,19 +1,48 @@
+require 'rbconfig'
+
 module FSSM::Support
   class << self
     def backend
-      (mac? && carbon_core?) ? 'FSEvents' : 'Polling'
+      @@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?
-      @@mac ||= RUBY_PLATFORM =~ /darwin/i
+      Config::CONFIG['target_os'] =~ /darwin/i
+    end
+
+    def linux?
+      Config::CONFIG['target_os'] =~ /linux/i
     end
 
     def carbon_core?
-      @@carbon_core ||= begin
+      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?
+      begin
+        require 'rubygems'
+        require 'rb-inotify'
+        true
+      rescue LoadError, Gem::LoadError
+        STDERR.puts("Warning: Unable to load rb-inotify. Inotify will be unavailable.")
         false
       end
     end

lib/vendor/fssm/tree.rb

@@ -34,9 +34,9 @@ module FSSM::Tree
     def each(prefix=nil, &block)
       @children.each do |segment, node|
         cprefix = prefix ?
-                  Pathname.for(prefix).join(segment) :
+                FSSM::Pathname.for(prefix).join(segment) :
-                  Pathname.for(segment)
+                FSSM::Pathname.for(segment)
-        block.call(cprefix, node)
+        block.call([cprefix, node])
         node.each(cprefix, &block)
       end
     end
@@ -72,7 +72,7 @@ module FSSM::Tree
 
     def key_segments(key)
       return key if key.is_a?(Array)
-      Pathname.for(key).segments
+      FSSM::Pathname.for(key).segments
     end
 
     def descendant(path)
@@ -127,7 +127,7 @@ module FSSM::Tree
     end
 
     def from_path(path)
-      path = Pathname.for(path)
+      path = FSSM::Pathname.for(path)
       @ftype = path.ftype
       # this handles bad symlinks without failing. why handle bad symlinks at
       # all? well, we could still be interested in their creation and deletion.
@@ -145,7 +145,7 @@ module FSSM::Tree
     def set(path)
       # all paths set from this level need to be absolute
       # realpath will fail on broken links
-      path = Pathname.for(path).expand_path      
+      path = FSSM::Pathname.for(path).expand_path
       super(path)
     end
 
@@ -160,13 +160,13 @@ module FSSM::Tree
     def links
       ftype('link')
     end
+
     alias symlinks links
 
     private
 
     def ftype(ft)
-      inject({}) do |hash, entry|
+      inject({}) do |hash, (path, node)|
-        path, node = entry
         hash["#{path}"] = node.mtime if node.ftype == ft
         hash
       end