[ci] use github actions

.github/workflows/main.yml

@@ -0,0 +1,32 @@
+name: main
+on:
+  - push
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Setup Go
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.13
+        id: go
+      - name: Code checkout
+        uses: actions/checkout@v1
+      - name: Test
+        run: |
+          go test -v ./... -coverprofile=coverage.txt -covermode=atomic
+          go test -v ./... -race
+      - name: Build
+        run: |
+          GOOS=linux go build
+          GOOS=darwin go build
+          GOOS=freebsd go build
+          GOOS=windows go build
+          GOARCH=386 go build
+      - name: Publish coverage
+        uses: codecov/codecov-action@v1.0.0
+        with:
+          token: ${{secrets.CODECOV_TOKEN}}
+          file: ./coverage.txt
+

.travis.yml

@@ -1,20 +0,0 @@
-language: go
-
-go:
-  - 1.12.x
-
-script:
-  # build test for supported platforms
-  - GOOS=linux go build
-  - GOOS=darwin go build
-  - GOOS=freebsd go build
-  - GOOS=windows go build
-  - GOARCH=386 go build
-
-  # run tests on a standard platform
-  - go test -v ./... -coverprofile=coverage.txt -covermode=atomic
-  - go test -v ./... -race
-
-after_success:
-  # Upload coverage results to codecov.io
-  - bash <(curl -s https://codecov.io/bash)

README.md

@@ -1,4 +1,4 @@
-[![Build Status](https://travis-ci.org/VictoriaMetrics/metrics.svg)](https://travis-ci.org/VictoriaMetrics/metrics)
+[![Build Status](https://github.com/VictoriaMetrics/metrics/workflows/main/badge.svg)](https://github.com/VictoriaMetrics/metrics/actions)
 [![GoDoc](https://godoc.org/github.com/VictoriaMetrics/metrics?status.svg)](http://godoc.org/github.com/VictoriaMetrics/metrics)
 [![Go Report](https://goreportcard.com/badge/github.com/VictoriaMetrics/metrics)](https://goreportcard.com/report/github.com/VictoriaMetrics/metrics)
 [![codecov](https://codecov.io/gh/VictoriaMetrics/metrics/branch/master/graph/badge.svg)](https://codecov.io/gh/VictoriaMetrics/metrics)