From 29791d1972a960666b894a82978798ae613615be Mon Sep 17 00:00:00 2001
From: Micooz <micooz@hotmail.com>
Date: Sat, 14 Oct 2017 22:53:02 +0800
Subject: [PATCH] bin: load libsodium library before run main()

---
 bin/cli.js | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/bin/cli.js b/bin/cli.js
index 8426665..ac48e4e 100644
--- a/bin/cli.js
+++ b/bin/cli.js
@@ -53,7 +53,7 @@ function getOptionValue(opt) {
   return undefined;
 }
 
-(function main() {
+function main() {
   if (argv.length < 3) {
     return console.log(usage);
   }
@@ -107,4 +107,13 @@ function getOptionValue(opt) {
 
   // other cases
   console.log(usage);
-})();
+}
+
+// libsodium-wrappers need to be loaded asynchronously
+// so we must wait for it ready before run main().
+// https://github.com/jedisct1/libsodium.js#usage-as-a-module
+const _sodium = require('libsodium-wrappers');
+_sodium.ready
+  // a handy way to access libsodium without fighting with Promise
+  .then(() => global.libsodium = _sodium)
+  .then(main);