From cd7584888230a8a537e445ab7f9e8a436d0ee427 Mon Sep 17 00:00:00 2001
From: "J. Ryan Stinnett" <jryans@gmail.com>
Date: Wed, 13 Mar 2019 12:28:07 +0000
Subject: [PATCH] Use modern Yarn version on Travis CI

Travis CI uses a quite old version of Yarn by default. This adds Yarn's
recommended incantation for using the latest stable version.
---
 .travis.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 823517fc5aa..07c5c305290 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,8 @@
 language: node_js
 node_js:
     - "10.11.0"
+before_install:
+    - curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.13.0
+    - export PATH=$HOME/.yarn/bin:$PATH
 script:
     - ./travis.sh