add ci & fix format error

.github/ISSUE_TEMPLATE/bug-report.md

+---
+name: Bug Report
+about: Report a bug
+labels: kind/bug
+
+---
+
+<!-- Please use this template while reporting a bug and provide as much info as possible. Not doing so may result in your bug not being addressed in a timely manner. Thanks!
+
+-->
+
+
+**What happened**:
+
+**What you expected to happen**:
+
+**How to reproduce it (as minimally and precisely as possible)**:
+
+**Anything else we need to know?**:

.github/ISSUE_TEMPLATE/enhancement.md

+---
+name: Enhancement Request
+about: Suggest an enhancement
+labels: kind/feature
+
+---
+<!-- Please only use this template for submitting enhancement requests -->
+
+**What would you like to be added**:
+
+**Why is this needed**:
\ No newline at end of file

.github/PULL_REQUEST_TEMPLATE.md

+<!--  Thanks for sending a pull request! 
+-->
+
+**What this PR does**:
+
+**Which issue(s) this PR fixes**:
+<!--
+*Automatically closes linked issue when PR is merged.
+Usage: `Fixes #<issue number>`, or `Fixes (paste link of issue)`.
+_If PR is about `failing-tests or flakes`, please post the related issues/tests in a comment and do not use `Fixes`_*
+-->
+Fixes #
+
+**Special notes for your reviewer**:
+
+**Does this PR introduce a user-facing change?**:
+<!--
+If no, just write "NONE" in the release-note block below.
+If yes, a release note is required:
+Enter your extended release note in the block below. If the PR requires additional action from users switching to the new release, include the string "action required".
+-->
+```release-note
+
+```
\ No newline at end of file

.golangci.yml

+linters-settings:
+  govet:
+    check-shadowing: true
+  golint:
+    min-confidence: 0
+  gocyclo:
+    min-complexity: 10
+  maligned:
+    suggest-new: true
+  dupl:
+    threshold: 100
+  goconst:
+    min-len: 2
+    min-occurrences: 2
+  depguard:
+    list-type: blacklist
+    packages:
+      # logging is allowed only by logutils.Log, logrus
+      # is allowed to use only in logutils package
+      - github.com/sirupsen/logrus
+  misspell:
+    locale: US
+  lll:
+    line-length: 140
+  goimports:
+    local-prefixes: github.com/golangci/golangci-lint
+  gocritic:
+    enabled-tags:
+      - performance
+      - style
+      - experimental
+    disabled-checks:
+      - wrapperFunc
+
+linters:
+  enable-all: true
+  disable:
+    - maligned
+    - prealloc
+    - gochecknoglobals
+
+run:
+  skip-dirs:
+    - test/testdata_etc
+    - pkg/golinters/goanalysis/(checker|passes)
+
+issues:
+  exclude-rules:
+    - text: "weak cryptographic primitive"
+      linters:
+        - gosec
+
+# golangci.com configuration
+# https://github.com/golangci/golangci/wiki/Configuration
+service:
+  golangci-lint-version: 1.15.x # use the fixed version to not introduce new linters unexpectedly
+  prepare:
+    - echo "here I can run custom commands, but no preparation needed for this repo"

.travis.yml

+language: go
+
+go:
+  - "1.11"
+  - "1.12"
+
+script:
+  - go fmt ./... && [[ -z `git status -s` ]]
+  - GO111MODULE=on && go mod vendor && go test ./... -bench . -race -v
+

README.md

 # gost
 
+[![Build Status](https://travis-ci.org/dubbogo/gost.png?branch=master)](https://travis-ci.org/dubbogo/gost)
+[![GoCover](http://gocover.io/_badge/github.com/dubbogo/gost)](http://gocover.io/github.com/dubbogo/gost)
+[![GoDoc](https://godoc.org/github.com/dubbogo/gost?status.svg)](https://godoc.org/github.com/dubbogo/gost)
+
 A go sdk for [Apache Dubbo-go](github.com/apache/dubbo-go).
 
 ## bytes

sync/deadlock.go

 package gxsync
+
 // ref: github.com/sasha-s/go-deadlock
 
 import (

sync/deadlock_map.go

@@ -2,7 +2,6 @@
 
 package gxsync
 
-
 // ref: github.com/sasha-s/go-deadlock
 
 import "sync"

sync/enable.go

@@ -11,4 +11,3 @@ func EnableDeadlock(enable bool) {
 		Opts.DisableLockOrderDetection = false
 	}
 }
-

time/wheel_test.go

 package gxtime
 
 import (
-	"fmt"
 	"sync"
 	"testing"
 	"time"
 )
 
 // output:
-// timer costs: 100002 ms
+// timer costs: 30001 ms
 // --- PASS: TestNewWheel (100.00s)
 func TestWheel(t *testing.T) {
 	var (
@@ -18,23 +17,23 @@ func TestWheel(t *testing.T) {
 	)
 	wheel = NewWheel(TimeMillisecondDuration(100), 20)
 	defer func() {
-		fmt.Println("timer costs:", cw.Count()/1e6, "ms")
+		t.Log("timer costs:", cw.Count()/1e6, "ms")
 		wheel.Stop()
 	}()
 
 	cw.Start()
 	for {
 		<-wheel.After(TimeMillisecondDuration(1000))
-		fmt.Println("loop:", index)
+		t.Log("loop:", index)
 		index++
-		if index >= 150 {
+		if index >= 30 {
 			return
 		}
 	}
 }
 
 // output:
-// timer costs: 150001 ms
+// timer costs: 45001 ms
 // --- PASS: TestNewWheel2 (150.00s)
 func TestWheels(t *testing.T) {
 	var (
@@ -44,7 +43,7 @@ func TestWheels(t *testing.T) {
 	)
 	wheel = NewWheel(TimeMillisecondDuration(100), 20)
 	defer func() {
-		fmt.Println("timer costs:", cw.Count()/1e6, "ms") //
+		t.Log("timer costs:", cw.Count()/1e6, "ms") //
 		wheel.Stop()
 	}()
 
@@ -53,9 +52,9 @@ func TestWheels(t *testing.T) {
 		var index int
 		for {
 			<-wheel.After(d)
-			fmt.Println("loop:", index, ", interval:", d)
+			t.Log("loop:", index, ", interval:", d)
 			index++
-			if index >= 100 {
+			if index >= 30 {
 				return
 			}
 		}