JRubyで相対パスを含む場合に、Jarファイルの中のファイルを読めるようにするためのモンキーパッチの最新版です。

ruby>>
def cleanup_path(path)
if path.to_s.match(/^file:/) && path.is_a?(String)
jar_path, inner_path = path.split('!', 2)
inner_path = File.expand_path(inner_path)
path = [jar_path, inner_path].join('!')
end
path
end

alias :require_original :require
def require(path)
require_original cleanup_path(path)
rescue Exception => e
raise e unless path.to_s.match(/^file:/)
end

alias :load_original :load
def load(path)
load_original cleanup_path(path)
rescue Exception => e
raise e unless path.to_s.match(/^file:/)
end

class Dir
class << self
alias :aref_original :[]
def
aref_original *(args.map{|path| cleanup_path(path)})
end
end
end
class File
class << self
alias :mtime_original :mtime
def mtime(path)
if path.match(/^file:/)
jar_file, = path.split('!', 2)
path = jar_file.sub(/^file:/, '')
end
mtime_original(path)
end
end
end
<<--