From 10a0b5d5b69675d7ecb5b8712e5da0a1518ca374 Mon Sep 17 00:00:00 2001
From: Juan Pedro Villa Isaza <jpvillaisaza@gmail.com>
Date: Tue, 29 May 2018 08:44:00 -0500
Subject: [PATCH] Update CircleCI 2.0 caching strategy (#19)

---
 .circleci/config.yml | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index ae5a258..cc2d233 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -7,12 +7,14 @@ jobs:
       - checkout
       - restore_cache:
           keys:
-            - stack
+            - v1-.stack-{{ checksum "stack.yaml" }}-{{ checksum "licensor.cabal" }}
+            - v1-.stack-{{ checksum "stack.yaml" }}
+            - v1-.stack-
       - run:
           name: Build dependencies
           command: stack build --only-dependencies
       - save_cache:
-          key: stack
+          key: v1-.stack-{{ checksum "stack.yaml" }}-{{ checksum "licensor.cabal" }}
           paths:
             - ~/.stack/
       - run: