1 files changed, 0 insertions, 159 deletions
diff --git a/lib/pstore.rb b/lib/pstore.rb
deleted file mode 100644
index 4a3434b283..0000000000
--- a/lib/pstore.rb
+++ /dev/null
@@ -1,159 +0,0 @@
-#
-# How to use:
-#
-# db = PStore.new("/tmp/foo")
-# db.transaction do
-#   p db.roots
-#   ary = db["root"] = [1,2,3,4]
-#   ary[0] = [1,1.5]
-# end
-
-# db.transaction do
-#   p db["root"]
-# end
-
-require "ftools"
-require "digest/md5"
-
-class PStore
-  class Error < StandardError
-  end
-
-  def initialize(file)
-    dir = File::dirname(file)
-    unless File::directory? dir
-      raise PStore::Error, format("directory %s does not exist", dir)
-    end
-    unless File::writable? dir
-      raise PStore::Error, format("directory %s not writable", dir)
-    end
-    if File::exist? file and not File::readable? file
-      raise PStore::Error, format("file %s not readable", file)
-    end
-    @transaction = false
-    @filename = file
-    @abort = false
-  end
-
-  def in_transaction
-    raise PStore::Error, "not in transaction" unless @transaction
-  end
-  private :in_transaction
-
-  def [](name)
-    in_transaction
-    unless @table.key? name
-      raise PStore::Error, format("undefined root name `%s'", name)
-    end
-    @table[name]
-  end
-  def []=(name, value)
-    in_transaction
-    @table[name] = value
-  end
-  def delete(name)
-    in_transaction
-    @table.delete name
-  end
-
-  def roots
-    in_transaction
-    @table.keys
-  end
-  def root?(name)
-    in_transaction
-    @table.key? name
-  end
-  def path
-    @filename
-  end
-
-  def commit
-    in_transaction
-    @abort = false
-    throw :pstore_abort_transaction
-  end
-  def abort
-    in_transaction
-    @abort = true
-    throw :pstore_abort_transaction
-  end
-
-  def transaction(read_only=false)
-    raise PStore::Error, "nested transaction" if @transaction
-    begin
-      @transaction = true
-      value = nil
-      backup = @filename+"~"
-      begin
-	file = File::open(@filename, "rb+")
-	orig = true
-      rescue Errno::ENOENT
-	raise if read_only
-	file = File::open(@filename, "wb+")
-      end
-      file.flock(read_only ? File::LOCK_SH : File::LOCK_EX)
-      if read_only
-	@table = Marshal::load(file)
-      elsif orig
-	content = file.read
-	@table = Marshal::load(content)
-	size = content.size
-	md5 = Digest::MD5.digest(content)
-	content = nil		# unreference huge data
-      else
-	@table = {}
-      end
-      begin
-	catch(:pstore_abort_transaction) do
-	  value = yield(self)
-	end
-      rescue Exception
-	@abort = true
-	raise
-      ensure
-	if !read_only && !@abort
-	  file.rewind
-	  content = Marshal::dump(@table)
-	  if !md5 || size != content.size || md5 != Digest::MD5.digest(content)
-	    File::copy @filename, backup
-	    begin
-	      file.write(content)
-	      file.truncate(file.pos)
-	      content = nil		# unreference huge data
-	    rescue
-	      File::rename backup, @filename if File::exist?(backup)
-	      raise
-	    end
-	  end
-	end
-	@abort = false
-      end
-    ensure
-      @table = nil
-      @transaction = false
-      file.close if file
-    end
-    value
-  end
-end
-
-if __FILE__ == $0
-  db = PStore.new("/tmp/foo")
-  db.transaction do
-    p db.roots
-    ary = db["root"] = [1,2,3,4]
-    ary[1] = [1,1.5]
-  end
-
-  1000.times do
-    db.transaction do
-      db["root"][0] += 1
-      p db["root"][0]
-    end
-  end
-
-  db.transaction(true) do
-    p db["root"]
-  end
-end