Add Circle-CI (#36)

Add circle-ci

Author: bakins

.circleci/config.yml

@@ -0,0 +1,29 @@
+version: 2
+jobs:
+  test:
+    docker:
+      - image: circleci/golang:1.12
+        environment:
+          GOFLAGS: -mod=vendor
+    steps:
+      - checkout
+      - run: go test -v ./...
+  release:
+    docker:
+      - image: circleci/golang:1.12
+    steps:
+      - checkout
+      - run: ./script/release
+workflows:
+  version: 2
+  test_and_release:
+    jobs:
+      - test
+      - release:
+          requires:
+          - test
+          filters:
+            branches:
+              ignore: /.*/
+            tags:
+              only: /v[0-9]+(\.[0-9]+)*(-.*)*/

script/release

@@ -0,0 +1,27 @@
+#!/bin/bash
+set -e
+TAR_FILE="/tmp/goreleaser.tar.gz"
+RELEASES_URL="https://github.com/goreleaser/goreleaser/releases"
+test -z "$TMPDIR" && TMPDIR="$(mktemp -d)"
+
+last_version() {
+  curl -sL -o /dev/null -w %{url_effective} "$RELEASES_URL/latest" | 
+    rev | 
+    cut -f1 -d'/'| 
+    rev
+}
+
+download() {
+  test -z "$VERSION" && VERSION="$(last_version)"
+  test -z "$VERSION" && {
+    echo "Unable to get goreleaser version." >&2
+    exit 1
+  }
+  rm -f "$TAR_FILE"
+  curl -s -L -o "$TAR_FILE" \
+    "$RELEASES_URL/download/$VERSION/goreleaser_$(uname -s)_$(uname -m).tar.gz"
+}
+
+download
+tar -xf "$TAR_FILE" -C "$TMPDIR"
+"${TMPDIR}/goreleaser" "$@"