Add upload task

Author: kou

Rakefile

@@ -9,6 +9,37 @@ task :tag do
   sh("git", "push", "--tags")
 end
 
+desc "Upload package to luarocks.org"
+task :upload do
+  api_key = ENV["API_KEY"]
+  if api_key.nil?
+    raise "Specify API key as API_KEY environment variable value"
+  end
+
+  rockspec_version = ""
+  File.open("xmlua.rockspec") do |rockspec|
+    rockspec.each_line do |line|
+      case line
+      when /package_version = "(.+?)"/
+        rockspec_version << $1
+      when /version = package_version \.\. "(.+?)"/
+        rockspec_version << $1
+      end
+    end
+  end
+  versioned_rockspec_filename = "xmlua-#{rockspec_version}.rockspec"
+
+  begin
+    cp("xmlua.rockspec", versioned_rockspec_filename)
+    sh("luarocks",
+       "upload",
+       "--api-key=#{api_key}",
+       versioned_rockspec_filename)
+  ensure
+    rm_f(versioned_rockspec_filename)
+  end
+end
+
 namespace :version do
   desc "Update version"
   task :update do