Add CI example

example-ci/.gitlab-ci.yml

@@ -0,0 +1,69 @@
+stages:
+- build
+- test
+- release
+
+compile:go1.11:
+  stage: build
+  image: golang:1.11
+  script:
+  - go build
+
+compile:go1.10:
+  stage: build
+  image: golang:1.10
+  script:
+  - go build
+
+test:
+  stage: test
+  image: golang:1.11
+  script:
+  - go test -cover
+
+formatting:
+  stage: test
+  image: golang:1.11
+  script:
+  - test $(go fmt -l | wc -l) -eq 0
+
+vet:
+  stage: test
+  image: golang:1.11
+  script:
+  - go vet .
+
+lint:
+  stage: test
+  image: golang:1.11
+  before_script:
+  - GO111MODULE=off go get golang.org/x/lint/golint
+  script:
+  - golint -set_exit_status .
+
+release-nightly:
+  stage: release
+  image:
+    name: goreleaser/goreleaser:v0.101.0
+    entrypoint: ["/bin/sh", "-c"]
+  script:
+  - goreleaser release --snapshot --skip-publish
+  artifacts:
+    paths:
+    - dist/*.tar.gz
+    expire_in: 1 week
+  only:
+  - master
+
+release:
+  stage: release
+  image:
+    name: goreleaser/goreleaser:v0.101.0
+    entrypoint: ["/bin/sh", "-c"]
+  script:
+  - goreleaser release --skip-publish
+  artifacts:
+    paths:
+    - dist/*.tar.gz
+  only:
+  - tags

example-ci/.goreleaser.yml

@@ -0,0 +1,36 @@
+project_name: helloworld
+before:
+  hooks:
+    - go mod download
+builds:
+- env:
+  - CGO_ENABLED=0
+  binary: hello
+  goos:
+  - darwin
+  - linux
+  - windows
+  - openbsd
+  - freebsd
+  goarch:
+  - amd64
+  - 386
+  - arm64
+  - arm
+archive:
+  replacements:
+    darwin: macos
+    linux: linux
+    windows: windows
+    386: i386
+    amd64: x86_64
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ .Tag }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+    - '^docs:'
+    - '^test:'

example-ci/docker-compose.yml

@@ -0,0 +1,24 @@
+version: "3"
+services: 
+  gitlab:
+    image: gitlab/gitlab-ce:latest
+    ports:
+      - "80:80"
+      - "22:22"
+    volumes:
+      - config:/etc/gitlab
+      - logs:/var/log/gitlab
+      - data:/var/opt/gitlab
+    hostname: gitlab.local
+    environment:
+      GITLAB_OMNIBUS_CONFIG: |
+        external_url 'http://gitlab'
+  
+  runner:
+    image: gitlab/gitlab-runner:alpine
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+volumes:
+  config: {}
+  data: {}
+  logs: {}

example-ci/go.mod

@@ -0,0 +1 @@
+module github.com/martin-helmich/go-tips/example-ci

example-ci/main.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"os"
+)
+
+// PrintHello prints hello
+func PrintHello(out io.Writer) error {
+	_, err := fmt.Fprintln(out, "Hello World")
+	return err
+}
+
+func main() {
+	err := PrintHello(os.Stdout)
+	if err != nil {
+		panic(err)
+	}
+}

example-ci/main_test.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"bytes"
+	"testing"
+)
+
+func TestPrintHelloPrintsHello(t *testing.T) {
+	buf := bytes.Buffer{}
+	err := PrintHello(&buf)
+
+	if err != nil {
+		t.Fatalf("err is expected nil, got: %s", err)
+	}
+
+	out := buf.String()
+
+	if out != "Hello World\n" {
+		t.Fatalf(`output is not "Hello World\n"; got: "%s"`, out)
+	}
+}