try converting to circle 2.0

.circleci/config.yaml

@@ -0,0 +1,33 @@
+version: 2
+jobs:
+  build:
+    machine: true
+    steps:
+      - checkout
+      - restore-cache:
+          keys:
+            - stack-{{ checksum “stack.yaml” }}
+      - run: wget https://github.com/commercialhaskell/stack/releases/download/v1.6.1/stack-1.6.1-linux-x86_64.tar.gz -O /tmp/stack.tar.gz
+      - run: sudo mkdir /tmp/stack-download
+      - run: sudo tar -xzf /tmp/stack.tar.gz -C /tmp/stack-download
+      - run: sudo chmod +x /tmp/stack-download/stack-1.6.1-linux-x86_64/stack
+      - run: sudo mv /tmp/stack-download/stack-1.6.1-linux-x86_64/stack /usr/bin/stack
+      - run: stack --install-ghc runghc -j1 site build
+      - save-cache:
+          key: stack-{{ checksum “stack.yaml” }}
+          paths:
+            - “~/.stack”
+            - “.stack-work”
+  deploy:
+    machine: true
+    steps:
+      - run: sudo apt-get update -yy && sudo apt-get install awscli
+      - run: stack --install-ghc runghc -j1 site deploy
+
+
+workflows:
+  version: 2
+  build_and_deploy:
+    jobs:
+      - build
+      - deploy

stack.yaml

@@ -0,0 +1,7 @@
+resolver: lts-9.21
+
+packages:
+  - "."
+
+extra-deps:
+  - hakyll