CI: Add CircleCI using manastech/crystal@1.0 (#59)

.circleci/config.yml

@@ -0,0 +1,61 @@
+version: 2.1
+
+orbs:
+  crystal: manastech/crystal@1.0
+
+commands:
+  install-sqlite:
+    steps:
+      - run:
+          name: Install `sqlite`
+          command: apt-get update && apt-get install -y libsqlite3-dev
+
+jobs:
+  test:
+    parameters:
+      executor:
+        type: executor
+        default: crystal/default
+    executor: << parameters.executor >>
+    steps:
+      - install-sqlite
+      - crystal/version
+      - checkout
+      - crystal/with-shards-cache:
+          steps:
+            - crystal/shards-install
+      - crystal/spec
+      - crystal/format-check
+
+executors:
+  nightly:
+    docker:
+      - image: 'crystallang/crystal:nightly'
+    environment:
+      SHARDS_OPTS: --ignore-crystal-version
+
+workflows:
+  version: 2
+
+  build:
+    jobs:
+      - test
+      - test:
+          name: test-on-nightly
+          executor:
+            name: nightly
+
+  nightly:
+    triggers:
+      - schedule:
+          cron: "0 3 * * *"
+          filters:
+            branches:
+              only:
+                - master
+    jobs:
+      - test:
+          name: test-on-nightly
+          executor:
+            name: nightly
+