chore: adds makefile and linter.

.golangci.toml

@@ -0,0 +1,40 @@
+[run]
+  deadline = "2m"
+  skip-files = []
+
+[linters-settings]
+
+  [linters-settings.govet]
+    check-shadowing = true
+
+  [linters-settings.gocyclo]
+    min-complexity = 12.0
+
+  [linters-settings.maligned]
+    suggest-new = true
+
+  [linters-settings.goconst]
+    min-len = 3.0
+    min-occurrences = 3.0
+
+  [linters-settings.misspell]
+    locale = "US"
+
+[linters]
+  enable-all = true
+  disable = [
+    "maligned",
+    "lll",
+    "gas",
+    "dupl",
+    "prealloc",
+    "scopelint",
+  ]
+
+[issues]
+  exclude-use-default = false
+  max-per-linter = 0
+  max-same = 0
+  exclude = [
+    "`(version|commit|date)` is a global variable", # version.go
+  ]

.travis.yml

@@ -0,0 +1,31 @@
+language: go
+
+go:
+  - 1.11.x
+  - 1.x
+
+sudo: false
+
+env:
+  - GO111MODULE=on
+
+notifications:
+  email:
+    on_success: never
+    on_failure: change
+
+before_install:
+  # Install linters and misspell
+  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b $GOPATH/bin v1.12.5
+  - golangci-lint --version
+
+install:
+  - echo "TRAVIS_GO_VERSION=$TRAVIS_GO_VERSION"
+
+deploy:
+  - provider: script
+    skip_cleanup: true
+    script: curl -sL https://git.io/goreleaser | bash
+    on:
+      tags: true
+      condition: $TRAVIS_GO_VERSION =~ ^1\.x$

Makefile

@@ -0,0 +1,22 @@
+.PHONY: default clean checks test build
+
+TAG_NAME := $(shell git tag -l --contains HEAD)
+SHA := $(shell git rev-parse --short HEAD)
+VERSION := $(if $(TAG_NAME),$(TAG_NAME),$(SHA))
+
+BUILD_DATE := $(shell date -u '+%Y-%m-%d_%I:%M:%S%p')
+
+default: clean checks test build
+
+test: clean
+	go test -v -cover ./...
+
+clean:
+	rm -rf dist/ cover.out
+
+build: clean
+	@echo Version: $(VERSION) $(BUILD_DATE)
+	go build -v -ldflags '-X "main.version=${VERSION}" -X "main.commit=${SHA}" -X "main.date=${BUILD_DATE}"'
+
+checks:
+	golangci-lint run