adds GHA (#205)

* adds GHA
* make test and host lookup error reporting less env. dependent

.circleci/config.yml

@@ -0,0 +1,11 @@
+version: 2
+jobs:
+  build:
+    working_directory: /go/src/github.com/openzipkin/zipkin-go
+    parallelism: 1
+    docker:
+      - image: circleci/golang
+    steps:
+      - checkout
+      - run: go mod download
+      - run: make vet test bench

.github/workflows/ci.yml

@@ -0,0 +1,55 @@
+name: test
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - "**/*.md"
+      - "LICENSE"
+  pull_request:
+
+jobs:
+  "CI":
+    env:
+      GO111MODULE: on
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-latest]
+        go: ["1.17"]
+        include:
+          - os: ubuntu-latest
+            go: "1.14"
+          - os: ubuntu-latest
+            go: "1.15"
+          - os: ubuntu-latest
+            go: "1.16"
+    steps:
+      # Set fetch-depth: 0 to fetch commit history and tags for use in version calculation
+      - name: Check out code
+        uses: actions/checkout@v2.3.4
+        with:
+          fetch-depth: 0
+
+      - name: Setup go
+        uses: actions/setup-go@v1
+        with:
+          go-version: ${{ matrix.go }}
+
+      - name: Lint files
+        uses: golangci/golangci-lint-action@v2
+        with:
+          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
+          version: latest
+
+      - name: Run tests
+        run: go test -coverprofile coverage.txt -v ./...
+        env:
+          CGO_ENABLED: 1
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v1
+        with:
+          name: zipkin-go test reports
+          fail_ci_if_error: true
+          files: ./coverage.txt

.golangci.yml

@@ -22,8 +22,8 @@ linters:
 
 linters-settings:
   dupl:
-    threshold: 400 
-  lll:   
+    threshold: 400
+  lll:
     line-length: 170
   gocyclo:
     min-complexity: 20

README.md

@@ -16,7 +16,6 @@ limitations under the License.
 
 # Zipkin Library for Go
 
-[![Travis CI](https://travis-ci.org/openzipkin/zipkin-go.svg?branch=master)](https://travis-ci.org/openzipkin/zipkin-go)
 [![CircleCI](https://circleci.com/gh/openzipkin/zipkin-go.svg?style=shield)](https://circleci.com/gh/openzipkin/zipkin-go)
 [![Appveyor CI](https://ci.appveyor.com/api/projects/status/1d0e5k96g10ajl63/branch/master?svg=true)](https://ci.appveyor.com/project/basvanbeek/zipkin-go)
 [![Coverage Status](https://img.shields.io/coveralls/github/openzipkin/zipkin-go.svg)](https://coveralls.io/github/openzipkin/zipkin-go?branch=master)

endpoint.go

@@ -15,6 +15,7 @@
 package zipkin
 
 import (
+	"fmt"
 	"net"
 	"strconv"
 	"strings"
@@ -54,7 +55,7 @@ func NewEndpoint(serviceName string, hostPort string) (*model.Endpoint, error) {
 
 	addrs, err := net.LookupIP(host)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("host lookup failure: %w", err)
 	}
 
 	for i := range addrs {

endpoint_test.go

@@ -107,7 +107,7 @@ func TestNewEndpointFailsDueToLookupIP(t *testing.T) {
 		t.Fatal("expected error")
 	}
 
-	if !strings.Contains(err.Error(), "no such host") {
+	if !strings.Contains(err.Error(), "host lookup failure") {
 		t.Fatalf("expected no such host error, got: %s", err.Error())
 	}
 }