Add onebox for GitHub pull requests

lib/oneboxer/github_pullrequest_onebox.rb

@@ -0,0 +1,26 @@
+require_dependency 'oneboxer/handlebars_onebox'
+
+module Oneboxer
+  class GithubPullrequestOnebox < HandlebarsOnebox
+
+    matcher /^https?:\/\/(?:www\.)?github\.com\/[^\/]+\/[^\/]+\/pull\/.+/
+    favicon 'github.png'
+
+    def translate_url
+      @url.match(
+        /github\.com\/(?<owner>[^\/]+)\/(?<repo>[^\/]+)\/pull\/(?<number>[^\/]+)/mi
+      ) do |match|
+        "https://api.github.com/repos/#{match[:owner]}/#{match[:repo]}/pulls/#{match[:number]}"
+      end
+    end
+
+    def parse(data)
+      result = JSON.parse(data)
+
+      result['created_at'] =
+        Time.parse(result['created_at']).strftime("%I:%M%p - %d %b %y")
+
+      result
+    end
+  end
+end