From 1f95c8a0c92739b098d37e8e188fb3d02ed92527 Mon Sep 17 00:00:00 2001
From: David Harris <daharr@umich.edu>
Date: Wed, 5 Jun 2019 09:31:39 -0700
Subject: [PATCH] Cache ruby installs

---
 .circleci/config.yml | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 4c96f53d..81c4921e 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -7,10 +7,23 @@ jobs:
       TERM: dumb
     steps:
       - checkout
+      - restore_cache:
+          keys:
+            - bundle-v1-{{ checksum "Gemfile.lock" }}
+            - bundle-v1
+
+      - run: # Install Ruby dependencies
+          name: Bundle Install
+          command: bundle check || bundle install
+
+      # Store bundle cache for Ruby dependencies
+      - save_cache:
+          key: bundle-v1-{{ checksum "Gemfile.lock" }}
+          paths:
+            - vendor/bundle
       - run:
           name: Prepare environment
           command: |
-            bundle install
             java -version
 
       - run: