From 1a4b86233f04c212ec1d26cc13a418d2448c8c88 Mon Sep 17 00:00:00 2001
From: KOBAYASHI Shuji <shuujii@gmail.com>
Date: Thu, 30 Apr 2020 13:30:55 +0900
Subject: Refine `.travis.yml`

* Disable automatic update and clean up on `brew install` (install time
  160 sec -> 5 sec).
* Avoid using deprecated keys.
---
 .travis.yml | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 2d83cbcdf..7d6d82457 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,15 +1,14 @@
 language: c
 
-sudo: false
-
-matrix:
+jobs:
   - os: linux
-    sudo: false
   - os: osx
     before_install:
-      - brew install bison
+      - HOMEBREW_NO_AUTO_UPDATE=1 HOMEBREW_NO_INSTALL_CLEANUP=1 brew install bison
       - export PATH="/usr/local/opt/bison/bin:$PATH"
 
 env:
   - MRUBY_CONFIG=travis_config.rb
-script: "rake -m && rake test"
+
+script:
+  - rake -m && rake test
-- 
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