tests: use GitHub Actions for CI

also add go-1.14 and go-1.15 to test matrix

keep Travis-CI temporarily

.github/workflows/test.yml

@@ -0,0 +1,42 @@
+name: tests
+
+on:
+  push:         {branches: [master]}
+  pull_request: {branches: [master]}
+
+jobs:
+  test:
+    runs-on: ubuntu-20.04
+    timeout-minutes: 30
+    strategy:
+      fail-fast: false
+      matrix:
+        imgtag:
+          - "golang:1.12-buster"
+          - "golang:1.13-buster"
+          - "golang:1.14-buster"
+          - "golang:1.15-buster"
+        goarch:
+          - "amd64"
+          - "386"
+
+    container: "${{matrix.imgtag}}"
+    env:
+      GOPATH: "${{github.workspace}}/go"
+      GOARCH: "${{matrix.goarch}}"
+      SRCDIR: "go/src/github.com/nsqio/nsq"
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          path: ${{env.SRCDIR}}
+
+      - name: build
+        run: |
+          cd $SRCDIR
+          make all
+
+      - name: test
+        run: |
+          cd $SRCDIR
+          ./test.sh

test.sh

@@ -1,7 +1,6 @@
 #!/bin/sh
 set -e
 
-export GO111MODULE=on
 GOMAXPROCS=1 go test -timeout 90s ./...
 GOMAXPROCS=4 go test -timeout 90s -race ./...
 
@@ -15,3 +14,9 @@ for dir in apps/*/ bench/*/; do
         echo "(skipped $dir)"
     fi
 done
+
+FMTDIFF="$(find apps internal nsqd nsqlookupd -name '*.go' -exec gofmt -d '{}' ';')"
+if [ -n "$FMTDIFF" ]; then
+    printf '%s\n' "$FMTDIFF"
+    exit 1
+fi