Merge branch 'kumavis-patch-1' of github.com:MetaMask/metamask-plugin into kumavis-patch-1

1 files changed, 24 insertions, 0 deletions

diff --git a/app/scripts/lib/nodeify.js b/app/scripts/lib/nodeify.js
new file mode 100644
index 000000000..51d89a8fb
--- /dev/null
+++ b/app/scripts/lib/nodeify.js
@@ -0,0 +1,24 @@
+module.exports = function (promiseFn) {
+  return function () {
+    var args = []
+    for (var i = 0; i < arguments.length - 1; i++) {
+      args.push(arguments[i])
+    }
+    var cb = arguments[arguments.length - 1]
+
+    const nodeified = promiseFn.apply(this, args)
+
+    if (!nodeified) {
+      const methodName = String(promiseFn).split('(')[0]
+      throw new Error(`The ${methodName} did not return a Promise, but was nodeified.`)
+    }
+    nodeified.then(function (result) {
+      cb(null, result)
+    })
+    .catch(function (reason) {
+      cb(reason)
+    })
+
+    return nodeified
+  }
+}