From 73e6221fb6846b2b696516d8321704adb653e834 Mon Sep 17 00:00:00 2001
From: joneshf <jones3.hardy@gmail.com>
Date: Sun, 29 Jul 2018 09:22:00 -0700
Subject: [PATCH] Use the cache to circumvent building

Since we use `stack` to run `hpack` to generate the cabal file,
we need `stack` to have its cache all setup properly.

We could eschew `hpack` to relax this requirement...
---
 .circleci/config.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 38111f6..cfc1c3f 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -5,6 +5,12 @@ jobs:
       - image: haskell:8.2.2
     steps:
       - checkout
+      - restore_cache:
+          keys:
+            - v1-stack-{{ checksum "package.yaml" }}-{{ checksum "stack.yaml" }}
+            - v1-stack-{{ checksum "package.yaml" }}-
+            - v1-stack-
+          name: Restoring stack cache
       - run:
           name: Build sdist
           command: make sdist