Add circleci config file

.circleci/config.yml

@@ -0,0 +1,60 @@
+version: 2
+jobs:
+  build:
+    docker:
+      - image: circleci/golang:1.10
+    working_directory: /go/src/github.com/jimeh/casecmp
+    steps:
+      - checkout
+      - run:
+          name: Install tools
+          command: |
+            curl -L https://github.com/golang/dep/raw/master/install.sh | sh
+      - run:
+          name: Install dependencies
+          command: dep ensure
+      - run:
+          name: Build binary
+          command: make
+      - run:
+          name: Start service
+          command: ./bin/casecmp --port=8080
+          background: true
+      - run:
+          name: Validate service is working
+          command: |
+            curl --retry 10 --retry-delay 1 --retry-connrefused \
+              http://localhost:8080/
+  release:
+    docker:
+      - image: circleci/golang:1.10
+    working_directory: /go/src/github.com/jimeh/casecmp
+    steps:
+      - checkout
+      - run:
+          name: Install tools
+          command: |
+            curl -L https://github.com/golang/dep/raw/master/install.sh | sh
+            go get github.com/goreleaser/goreleaser
+      - run:
+          name: Install dependencies
+          command: dep ensure
+      - run:
+          name: Run goreleaser
+          command: goreleaser
+workflows:
+  version: 2
+  build-and-release:
+    jobs:
+      - build:
+          filters:
+            tags:
+              only: /.*/
+      - release:
+          requires:
+            - build
+          filters:
+            branches:
+              ignore: /.*/
+            tags:
+              only: /^[0-9]+(\.[0-9]+)*/