It works

mina_reboot.gemspec

@@ -0,0 +1,23 @@
+# coding: utf-8
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'mina/reboot/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = "mina_reboot"
+  spec.version       = MinaReboot::VERSION
+  spec.authors       = ["Gregory Eremin"]
+  spec.email         = ["g@erem.in"]
+  spec.summary       = %q{Generates cron @reboot script from Minafile}
+  spec.description   = %q{Generates cron @reboot script from Minafile every time you deploy, so your app will start automatically in case of server reboot}
+  spec.homepage      = "https://github.com/localhots/mina_reboot"
+  spec.license       = "MIT"
+
+  spec.files         = `git ls-files -z`.split("\x0")
+  spec.executables   = []
+  spec.test_files    = []
+  spec.require_paths = ["lib"]
+
+  spec.add_development_dependency "bundler", "~> 1.7"
+  spec.add_development_dependency "rake", "~> 10.0"
+end