Added golangci-lint config

.golangci.yml

@@ -0,0 +1,14 @@
+# options for analysis running
+run:
+  tests: false
+
+output:
+  print-issued-lines: false
+
+linters:
+  disable:
+    - errcheck
+    - govet
+    - gosimple
+    - unused
+    - staticcheck

.travis.yml

@@ -27,12 +27,14 @@ cache:
     - $GOPATH/pkg
 
 before_install:
+  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.15.0
   - echo "TRAVIS_GO_VERSION=${TRAVIS_GO_VERSION}"
 
 install:
   - go get github.com/mattn/goveralls
 
 script:
+  - golangci-lint run
   - make test COVERAGE_DIR=/tmp/coverage
 
 after_success: