feat: retry github requests

lib/github.js

@@ -1,7 +1,33 @@
 const url = require('url')
 
 const _ = require('lodash')
-const Github = require('github')
+const { promisify } = require('bluebird')
+const promiseRetry = require('promise-retry')
+
+function ghRetry (ghapi) {
+  const httpSend = ghapi.prototype.httpSend
+  ghapi.prototype.httpSend = function (msg, block, callback) {
+    const send = promisify(httpSend.bind(this, msg, block))
+    promiseRetry(retry => {
+      return send().catch(err => {
+        const type = err.code || err.message
+        if (!['ETIMEDOUT', 'ECONNREFUSED', 'ECONNRESET', 'ESOCKETTIMEDOUT'].includes(type)) {
+          throw err
+        }
+
+        retry(err)
+      })
+    }, {
+      retries: 5,
+      minTimeout: 3000
+    })
+    .then(res => callback(null, res))
+    .catch(callback)
+  }
+  return ghapi
+}
+
+const Github = ghRetry(require('github'))
 
 const githubHost = {}