chore: make methods consistent in signatures (#1971)

* chore: make methods consistent in signatures

* test: fix fails

.github/FUNDING.yml

@@ -9,4 +9,5 @@ community_bridge: # Replace with a single Community Bridge project-name e.g., cl
 liberapay: # Replace with a single Liberapay username
 issuehunt: # Replace with a single IssueHunt username
 otechie: # Replace with a single Otechie username
-custom: https://gitee.com/kevwan/static/raw/master/images/sponsor.jpg
+custom: # https://gitee.com/kevwan/static/raw/master/images/sponsor.jpg
+ethereum: 0x5052b7f6B937B02563996D23feb69b38D06Ca150 | kevwan

.github/workflows/go.yml

@@ -7,32 +7,50 @@ on:
     branches: [ master ]
 
 jobs:
-  build:
-    name: Build
+  test-linux:
+    name: Linux
     runs-on: ubuntu-latest
     steps:
+      - name: Set up Go 1.x
+        uses: actions/setup-go@v2
+        with:
+          go-version: ^1.15
+        id: go
 
-    - name: Set up Go 1.x
-      uses: actions/setup-go@v2
-      with:
-        go-version: ^1.14
-      id: go
+      - name: Check out code into the Go module directory
+        uses: actions/checkout@v2
 
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v2
+      - name: Get dependencies
+        run: |
+          go get -v -t -d ./...
 
-    - name: Get dependencies
-      run: |
-        go get -v -t -d ./...
+      - name: Lint
+        run: |
+          go vet -stdmethods=false $(go list ./...)
+          go install mvdan.cc/gofumpt@latest
+          test -z "$(gofumpt -l -extra .)" || echo "Please run 'gofumpt -l -w -extra .'"
 
-    - name: Lint
-      run: |
-        go vet -stdmethods=false $(go list ./...)
-        go install mvdan.cc/gofumpt@latest
-        test -z "$(gofumpt -s -l -extra .)" || echo "Please run 'gofumpt -l -w -extra .'"
+      - name: Test
+        run: go test -race -coverprofile=coverage.txt -covermode=atomic ./...
 
-    - name: Test
-      run: go test -race -coverprofile=coverage.txt -covermode=atomic ./...
+      - name: Codecov
+        uses: codecov/codecov-action@v2
 
-    - name: Codecov
-      uses: codecov/codecov-action@v2
+  test-win:
+    name: Windows
+    runs-on: windows-latest
+    steps:
+      - name: Set up Go 1.x
+        uses: actions/setup-go@v2
+        with:
+          go-version: ^1.15
+
+      - name: Checkout codebase
+        uses: actions/checkout@v2
+
+      - name: Test
+        run: |
+          go mod verify
+          go mod download
+          go test -v -race ./...
+          cd tools/goctl && go build -v goctl.go

.github/workflows/issue-translator.yml

@@ -0,0 +1,18 @@
+name: 'issue-translator'
+on: 
+  issue_comment: 
+    types: [created]
+  issues: 
+    types: [opened]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: tomsun28/issues-translate-action@v2.6
+        with:
+          IS_MODIFY_TITLE: true
+          # not require, default false, . Decide whether to modify the issue title
+          # if true, the robot account @Issues-translate-bot must have modification permissions, invite @Issues-translate-bot to your project or use your custom bot.
+          CUSTOM_BOT_NOTE: Bot detected the issue body's language is not English, translate it automatically. 👯👭🏻🧑‍🤝‍🧑👫🧑🏿‍🤝‍🧑🏻👩🏾‍🤝‍👨🏿👬🏿
+          # not require. Customize the translation robot prefix message.

.github/workflows/release.yaml

@@ -0,0 +1,28 @@
+on:
+  push:
+    tags:
+      - "tools/goctl/*"
+jobs:
+  releases-matrix:
+    name: Release goctl binary
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        # build and publish in parallel: linux/386, linux/amd64, linux/arm64,
+        # windows/386, windows/amd64, windows/arm64, darwin/amd64, darwin/arm64
+        goos: [ linux, windows, darwin ]
+        goarch: [ "386", amd64, arm64 ]
+        exclude:
+          - goarch: "386"
+            goos: darwin
+    steps:
+      - uses: actions/checkout@v2
+      - uses: zeromicro/go-zero-release-action@master
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          goos: ${{ matrix.goos }}
+          goarch: ${{ matrix.goarch }}
+          goversion: "https://dl.google.com/go/go1.17.5.linux-amd64.tar.gz"
+          project_path: "tools/goctl"
+          binary_name: "goctl"
+          extra_files: tools/goctl/goctl.md

.gitignore

@@ -16,7 +16,9 @@
 **/logs
 
 # for test purpose
-adhoc
+**/adhoc
+go.work
+go.work.sum
 
 # gitlab ci
 .cache

CONTRIBUTING.md

@@ -40,7 +40,7 @@ We will help you to contribute in different areas like filing issues, developing
 getting your work reviewed and merged.
 
 If you have questions about the development process,
-feel free to [file an issue](https://github.com/tal-tech/go-zero/issues/new/choose).
+feel free to [file an issue](https://github.com/zeromicro/go-zero/issues/new/choose).
 
 ## Find something to work on
 
@@ -50,10 +50,10 @@ Here is how you get started.
 
 ### Find a good first topic
 
-[go-zero](https://github.com/tal-tech/go-zero) has beginner-friendly issues that provide a good first issue.
-For example, [go-zero](https://github.com/tal-tech/go-zero) has
-[help wanted](https://github.com/tal-tech/go-zero/issues?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22) and
-[good first issue](https://github.com/tal-tech/go-zero/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22)
+[go-zero](https://github.com/zeromicro/go-zero) has beginner-friendly issues that provide a good first issue.
+For example, [go-zero](https://github.com/zeromicro/go-zero) has
+[help wanted](https://github.com/zeromicro/go-zero/issues?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22) and
+[good first issue](https://github.com/zeromicro/go-zero/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22)
 labels for issues that should not need deep knowledge of the system.
 We can help new contributors who wish to work on such issues.
 
@@ -79,7 +79,7 @@ This is a rough outline of what a contributor's workflow looks like:
 - Create a topic branch from where to base the contribution. This is usually master.
 - Make commits of logical units.
 - Push changes in a topic branch to a personal fork of the repository.
-- Submit a pull request to [go-zero](https://github.com/tal-tech/go-zero).
+- Submit a pull request to [go-zero](https://github.com/zeromicro/go-zero).
 
 ## Creating Pull Requests
 

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2020 xiaoheiban_server_go
+Copyright (c) 2022 zeromicro
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

ROADMAP.md

@@ -20,9 +20,9 @@ We hope that the items listed below will inspire further engagement from the com
 - [x] Support `goctl bug` to report bugs conveniently
 
 ## 2022
-- [ ] Support `goctl mock` command to start a mocking server with given `.api` file
-- [ ] Add `httpx.Client` with governance, like circuit breaker etc.
+- [x] Support `context` in redis related methods for timeout and tracing
+- [x] Support `context` in sql related methods for timeout and tracing
+- [x] Support `context` in mongodb related methods for timeout and tracing
+- [x] Add `httpc.Do` with HTTP call governance, like circuit breaker etc.
 - [ ] Support `goctl doctor` command to report potential issues for given service
-- [ ] Support `context` in redis related methods for timeout and tracing
-- [ ] Support `context` in sql related methods for timeout and tracing
-- [ ] Support `context` in mongodb related methods for timeout and tracing
+- [ ] Support `goctl mock` command to start a mocking server with given `.api` file

core/bloom/bloom.go

@@ -4,8 +4,8 @@ import (
 	"errors"
 	"strconv"
 
-	"github.com/tal-tech/go-zero/core/hash"
-	"github.com/tal-tech/go-zero/core/stores/redis"
+	"github.com/zeromicro/go-zero/core/hash"
+	"github.com/zeromicro/go-zero/core/stores/redis"
 )
 
 const (
@@ -69,11 +69,8 @@ func (f *Filter) Exists(data []byte) (bool, error) {
 	if err != nil {
 		return false, err
 	}
-	if !isSet {
-		return false, nil
-	}
 
-	return true, nil
+	return isSet, nil
 }
 
 func (f *Filter) getLocations(data []byte) []uint {

core/bloom/bloom_test.go

@@ -4,7 +4,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/stores/redis/redistest"
+	"github.com/zeromicro/go-zero/core/stores/redis/redistest"
 )
 
 func TestRedisBitSet_New_Set_Test(t *testing.T) {

core/breaker/breaker.go

@@ -5,12 +5,12 @@ import (
 	"fmt"
 	"strings"
 	"sync"
+	"time"
 
-	"github.com/tal-tech/go-zero/core/mathx"
-	"github.com/tal-tech/go-zero/core/proc"
-	"github.com/tal-tech/go-zero/core/stat"
-	"github.com/tal-tech/go-zero/core/stringx"
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/mathx"
+	"github.com/zeromicro/go-zero/core/proc"
+	"github.com/zeromicro/go-zero/core/stat"
+	"github.com/zeromicro/go-zero/core/stringx"
 )
 
 const (
@@ -171,7 +171,7 @@ func (lt loggedThrottle) allow() (Promise, error) {
 func (lt loggedThrottle) doReq(req func() error, fallback func(err error) error, acceptable Acceptable) error {
 	return lt.logError(lt.internalThrottle.doReq(req, fallback, func(err error) bool {
 		accept := acceptable(err)
-		if !accept {
+		if !accept && err != nil {
 			lt.errWin.add(err.Error())
 		}
 		return accept
@@ -198,7 +198,7 @@ type errorWindow struct {
 
 func (ew *errorWindow) add(reason string) {
 	ew.lock.Lock()
-	ew.reasons[ew.index] = fmt.Sprintf("%s %s", timex.Time().Format(timeFormat), reason)
+	ew.reasons[ew.index] = fmt.Sprintf("%s %s", time.Now().Format(timeFormat), reason)
 	ew.index = (ew.index + 1) % numHistoryReasons
 	ew.count = mathx.MinInt(ew.count+1, numHistoryReasons)
 	ew.lock.Unlock()

core/breaker/breaker_test.go

@@ -8,7 +8,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/stat"
+	"github.com/zeromicro/go-zero/core/stat"
 )
 
 func init() {

core/breaker/breakers_test.go

@@ -6,7 +6,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/stat"
+	"github.com/zeromicro/go-zero/core/stat"
 )
 
 func init() {

core/breaker/googlebreaker.go

@@ -4,8 +4,8 @@ import (
 	"math"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/collection"
-	"github.com/tal-tech/go-zero/core/mathx"
+	"github.com/zeromicro/go-zero/core/collection"
+	"github.com/zeromicro/go-zero/core/mathx"
 )
 
 const (

core/breaker/googlebreaker_test.go

@@ -7,9 +7,9 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/collection"
-	"github.com/tal-tech/go-zero/core/mathx"
-	"github.com/tal-tech/go-zero/core/stat"
+	"github.com/zeromicro/go-zero/core/collection"
+	"github.com/zeromicro/go-zero/core/mathx"
+	"github.com/zeromicro/go-zero/core/stat"
 )
 
 const (

core/cmdline/input_test.go

@@ -8,8 +8,8 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/iox"
-	"github.com/tal-tech/go-zero/core/lang"
+	"github.com/zeromicro/go-zero/core/iox"
+	"github.com/zeromicro/go-zero/core/lang"
 )
 
 func TestEnterToContinue(t *testing.T) {

core/codec/aesecb.go

@@ -7,7 +7,7 @@ import (
 	"encoding/base64"
 	"errors"
 
-	"github.com/tal-tech/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/logx"
 )
 
 // ErrPaddingSize indicates bad padding size.

core/codec/rsa_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/fs"
+	"github.com/zeromicro/go-zero/core/fs"
 )
 
 const (

core/collection/cache.go

@@ -6,9 +6,9 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/logx"
-	"github.com/tal-tech/go-zero/core/mathx"
-	"github.com/tal-tech/go-zero/core/syncx"
+	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/mathx"
+	"github.com/zeromicro/go-zero/core/syncx"
 )
 
 const (
@@ -98,13 +98,18 @@ func (c *Cache) Get(key string) (interface{}, bool) {
 
 // Set sets value into c with key.
 func (c *Cache) Set(key string, value interface{}) {
+	c.SetWithExpire(key, value, c.expire)
+}
+
+// SetWithExpire sets value into c with key and expire with the given value.
+func (c *Cache) SetWithExpire(key string, value interface{}, expire time.Duration) {
 	c.lock.Lock()
 	_, ok := c.data[key]
 	c.data[key] = value
 	c.lruCache.add(key)
 	c.lock.Unlock()
 
-	expiry := c.unstableExpiry.AroundDuration(c.expire)
+	expiry := c.unstableExpiry.AroundDuration(expire)
 	if ok {
 		c.timingWheel.MoveTimer(key, expiry)
 	} else {

core/collection/cache_test.go

@@ -18,7 +18,7 @@ func TestCacheSet(t *testing.T) {
 	assert.Nil(t, err)
 
 	cache.Set("first", "first element")
-	cache.Set("second", "second element")
+	cache.SetWithExpire("second", "second element", time.Second*3)
 
 	value, ok := cache.Get("first")
 	assert.True(t, ok)

core/collection/fifo_test.go

@@ -61,3 +61,41 @@ func TestPutMore(t *testing.T) {
 		assert.Equal(t, string(element), string(body.([]byte)))
 	}
 }
+
+func TestPutMoreWithHeaderNotZero(t *testing.T) {
+	elements := [][]byte{
+		[]byte("hello"),
+		[]byte("world"),
+		[]byte("again"),
+	}
+	queue := NewQueue(4)
+	for i := range elements {
+		queue.Put(elements[i])
+	}
+
+	// take 1
+	body, ok := queue.Take()
+	assert.True(t, ok)
+	element, ok := body.([]byte)
+	assert.True(t, ok)
+	assert.Equal(t, element, []byte("hello"))
+
+	// put more
+	queue.Put([]byte("b4"))
+	queue.Put([]byte("b5")) // will store in elements[0]
+	queue.Put([]byte("b6")) // cause expansion
+
+	results := [][]byte{
+		[]byte("world"),
+		[]byte("again"),
+		[]byte("b4"),
+		[]byte("b5"),
+		[]byte("b6"),
+	}
+
+	for _, element := range results {
+		body, ok := queue.Take()
+		assert.True(t, ok)
+		assert.Equal(t, string(element), string(body.([]byte)))
+	}
+}

core/collection/rollingwindow.go

@@ -4,7 +4,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/timex"
 )
 
 type (

core/collection/rollingwindow_test.go

@@ -6,7 +6,7 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/stringx"
+	"github.com/zeromicro/go-zero/core/stringx"
 )
 
 const duration = time.Millisecond * 50

core/collection/safemap_test.go

@@ -4,7 +4,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/stringx"
+	"github.com/zeromicro/go-zero/core/stringx"
 )
 
 func TestSafeMap(t *testing.T) {

core/collection/set.go

@@ -1,8 +1,8 @@
 package collection
 
 import (
-	"github.com/tal-tech/go-zero/core/lang"
-	"github.com/tal-tech/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/lang"
+	"github.com/zeromicro/go-zero/core/logx"
 )
 
 const (

core/collection/set_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/logx"
 )
 
 func init() {

core/collection/timingwheel.go

@@ -2,16 +2,22 @@ package collection
 
 import (
 	"container/list"
+	"errors"
 	"fmt"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/lang"
-	"github.com/tal-tech/go-zero/core/threading"
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/lang"
+	"github.com/zeromicro/go-zero/core/threading"
+	"github.com/zeromicro/go-zero/core/timex"
 )
 
 const drainWorkers = 8
 
+var (
+	ErrClosed   = errors.New("TimingWheel is closed already")
+	ErrArgument = errors.New("incorrect task argument")
+)
+
 type (
 	// Execute defines the method to execute the task.
 	Execute func(key, value interface{})
@@ -59,14 +65,15 @@ type (
 // NewTimingWheel returns a TimingWheel.
 func NewTimingWheel(interval time.Duration, numSlots int, execute Execute) (*TimingWheel, error) {
 	if interval <= 0 || numSlots <= 0 || execute == nil {
-		return nil, fmt.Errorf("interval: %v, slots: %d, execute: %p", interval, numSlots, execute)
+		return nil, fmt.Errorf("interval: %v, slots: %d, execute: %p",
+			interval, numSlots, execute)
 	}
 
 	return newTimingWheelWithClock(interval, numSlots, execute, timex.NewTicker(interval))
 }
 
-func newTimingWheelWithClock(interval time.Duration, numSlots int, execute Execute, ticker timex.Ticker) (
-	*TimingWheel, error) {
+func newTimingWheelWithClock(interval time.Duration, numSlots int, execute Execute,
+	ticker timex.Ticker) (*TimingWheel, error) {
 	tw := &TimingWheel{
 		interval:      interval,
 		ticker:        ticker,
@@ -89,47 +96,67 @@ func newTimingWheelWithClock(interval time.Duration, numSlots int, execute Execu
 }
 
 // Drain drains all items and executes them.
-func (tw *TimingWheel) Drain(fn func(key, value interface{})) {
-	tw.drainChannel <- fn
+func (tw *TimingWheel) Drain(fn func(key, value interface{})) error {
+	select {
+	case tw.drainChannel <- fn:
+		return nil
+	case <-tw.stopChannel:
+		return ErrClosed
+	}
 }
 
 // MoveTimer moves the task with the given key to the given delay.
-func (tw *TimingWheel) MoveTimer(key interface{}, delay time.Duration) {
+func (tw *TimingWheel) MoveTimer(key interface{}, delay time.Duration) error {
 	if delay <= 0 || key == nil {
-		return
+		return ErrArgument
 	}
 
-	tw.moveChannel <- baseEntry{
+	select {
+	case tw.moveChannel <- baseEntry{
 		delay: delay,
 		key:   key,
+	}:
+		return nil
+	case <-tw.stopChannel:
+		return ErrClosed
 	}
 }
 
 // RemoveTimer removes the task with the given key.
-func (tw *TimingWheel) RemoveTimer(key interface{}) {
+func (tw *TimingWheel) RemoveTimer(key interface{}) error {
 	if key == nil {
-		return
+		return ErrArgument
 	}
 
-	tw.removeChannel <- key
+	select {
+	case tw.removeChannel <- key:
+		return nil
+	case <-tw.stopChannel:
+		return ErrClosed
+	}
 }
 
 // SetTimer sets the task value with the given key to the delay.
-func (tw *TimingWheel) SetTimer(key, value interface{}, delay time.Duration) {
+func (tw *TimingWheel) SetTimer(key, value interface{}, delay time.Duration) error {
 	if delay <= 0 || key == nil {
-		return
+		return ErrArgument
 	}
 
-	tw.setChannel <- timingEntry{
+	select {
+	case tw.setChannel <- timingEntry{
 		baseEntry: baseEntry{
 			delay: delay,
 			key:   key,
 		},
 		value: value,
+	}:
+		return nil
+	case <-tw.stopChannel:
+		return ErrClosed
 	}
 }
 
-// Stop stops tw.
+// Stop stops tw. No more actions after stopping a TimingWheel.
 func (tw *TimingWheel) Stop() {
 	close(tw.stopChannel)
 }

core/collection/timingwheel_test.go

@@ -8,10 +8,10 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/lang"
-	"github.com/tal-tech/go-zero/core/stringx"
-	"github.com/tal-tech/go-zero/core/syncx"
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/lang"
+	"github.com/zeromicro/go-zero/core/stringx"
+	"github.com/zeromicro/go-zero/core/syncx"
+	"github.com/zeromicro/go-zero/core/timex"
 )
 
 const (
@@ -28,7 +28,6 @@ func TestTimingWheel_Drain(t *testing.T) {
 	ticker := timex.NewFakeTicker()
 	tw, _ := newTimingWheelWithClock(testStep, 10, func(k, v interface{}) {
 	}, ticker)
-	defer tw.Stop()
 	tw.SetTimer("first", 3, testStep*4)
 	tw.SetTimer("second", 5, testStep*7)
 	tw.SetTimer("third", 7, testStep*7)
@@ -56,6 +55,8 @@ func TestTimingWheel_Drain(t *testing.T) {
 	})
 	time.Sleep(time.Millisecond * 100)
 	assert.Equal(t, 0, count)
+	tw.Stop()
+	assert.Equal(t, ErrClosed, tw.Drain(func(key, value interface{}) {}))
 }
 
 func TestTimingWheel_SetTimerSoon(t *testing.T) {
@@ -102,6 +103,13 @@ func TestTimingWheel_SetTimerWrongDelay(t *testing.T) {
 	})
 }
 
+func TestTimingWheel_SetTimerAfterClose(t *testing.T) {
+	ticker := timex.NewFakeTicker()
+	tw, _ := newTimingWheelWithClock(testStep, 10, func(k, v interface{}) {}, ticker)
+	tw.Stop()
+	assert.Equal(t, ErrClosed, tw.SetTimer("any", 3, testStep))
+}
+
 func TestTimingWheel_MoveTimer(t *testing.T) {
 	run := syncx.NewAtomicBool()
 	ticker := timex.NewFakeTicker()
@@ -111,7 +119,6 @@ func TestTimingWheel_MoveTimer(t *testing.T) {
 		assert.Equal(t, 3, v.(int))
 		ticker.Done()
 	}, ticker)
-	defer tw.Stop()
 	tw.SetTimer("any", 3, testStep*4)
 	tw.MoveTimer("any", testStep*7)
 	tw.MoveTimer("any", -testStep)
@@ -125,6 +132,8 @@ func TestTimingWheel_MoveTimer(t *testing.T) {
 	}
 	assert.Nil(t, ticker.Wait(waitTime))
 	assert.True(t, run.True())
+	tw.Stop()
+	assert.Equal(t, ErrClosed, tw.MoveTimer("any", time.Millisecond))
 }
 
 func TestTimingWheel_MoveTimerSoon(t *testing.T) {
@@ -175,6 +184,7 @@ func TestTimingWheel_RemoveTimer(t *testing.T) {
 		ticker.Tick()
 	}
 	tw.Stop()
+	assert.Equal(t, ErrClosed, tw.RemoveTimer("any"))
 }
 
 func TestTimingWheel_SetTimer(t *testing.T) {

core/color/color.go

@@ -0,0 +1,73 @@
+package color
+
+import "github.com/fatih/color"
+
+const (
+	// NoColor is no color for both foreground and background.
+	NoColor Color = iota
+	// FgBlack is the foreground color black.
+	FgBlack
+	// FgRed is the foreground color red.
+	FgRed
+	// FgGreen is the foreground color green.
+	FgGreen
+	// FgYellow is the foreground color yellow.
+	FgYellow
+	// FgBlue is the foreground color blue.
+	FgBlue
+	// FgMagenta is the foreground color magenta.
+	FgMagenta
+	// FgCyan is the foreground color cyan.
+	FgCyan
+	// FgWhite is the foreground color white.
+	FgWhite
+
+	// BgBlack is the background color black.
+	BgBlack
+	// BgRed is the background color red.
+	BgRed
+	// BgGreen is the background color green.
+	BgGreen
+	// BgYellow is the background color yellow.
+	BgYellow
+	// BgBlue is the background color blue.
+	BgBlue
+	// BgMagenta is the background color magenta.
+	BgMagenta
+	// BgCyan is the background color cyan.
+	BgCyan
+	// BgWhite is the background color white.
+	BgWhite
+)
+
+var colors = map[Color][]color.Attribute{
+	FgBlack:   {color.FgBlack, color.Bold},
+	FgRed:     {color.FgRed, color.Bold},
+	FgGreen:   {color.FgGreen, color.Bold},
+	FgYellow:  {color.FgYellow, color.Bold},
+	FgBlue:    {color.FgBlue, color.Bold},
+	FgMagenta: {color.FgMagenta, color.Bold},
+	FgCyan:    {color.FgCyan, color.Bold},
+	FgWhite:   {color.FgWhite, color.Bold},
+	BgBlack:   {color.BgBlack, color.FgHiWhite, color.Bold},
+	BgRed:     {color.BgRed, color.FgHiWhite, color.Bold},
+	BgGreen:   {color.BgGreen, color.FgHiWhite, color.Bold},
+	BgYellow:  {color.BgHiYellow, color.FgHiBlack, color.Bold},
+	BgBlue:    {color.BgBlue, color.FgHiWhite, color.Bold},
+	BgMagenta: {color.BgMagenta, color.FgHiWhite, color.Bold},
+	BgCyan:    {color.BgCyan, color.FgHiWhite, color.Bold},
+	BgWhite:   {color.BgHiWhite, color.FgHiBlack, color.Bold},
+}
+
+type Color uint32
+
+// WithColor returns a string with the given color applied.
+func WithColor(text string, colour Color) string {
+	c := color.New(colors[colour]...)
+	return c.Sprint(text)
+}
+
+// WithColorPadding returns a string with the given color applied with leading and trailing spaces.
+func WithColorPadding(text string, colour Color) string {
+	return WithColor(" "+text+" ", colour)
+}

core/color/color_test.go

@@ -0,0 +1,17 @@
+package color
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestWithColor(t *testing.T) {
+	output := WithColor("Hello", BgRed)
+	assert.Equal(t, "Hello", output)
+}
+
+func TestWithColorPadding(t *testing.T) {
+	output := WithColorPadding("Hello", BgRed)
+	assert.Equal(t, " Hello ", output)
+}

core/conf/config.go

@@ -6,24 +6,26 @@ import (
 	"log"
 	"os"
 	"path"
+	"strings"
 
-	"github.com/tal-tech/go-zero/core/mapping"
+	"github.com/zeromicro/go-zero/core/mapping"
 )
 
 var loaders = map[string]func([]byte, interface{}) error{
-	".json": LoadConfigFromJsonBytes,
-	".yaml": LoadConfigFromYamlBytes,
-	".yml":  LoadConfigFromYamlBytes,
+	".json": LoadFromJsonBytes,
+	".toml": LoadFromTomlBytes,
+	".yaml": LoadFromYamlBytes,
+	".yml":  LoadFromYamlBytes,
 }
 
-// LoadConfig loads config into v from file, .json, .yaml and .yml are acceptable.
-func LoadConfig(file string, v interface{}, opts ...Option) error {
+// Load loads config into v from file, .json, .yaml and .yml are acceptable.
+func Load(file string, v interface{}, opts ...Option) error {
 	content, err := ioutil.ReadFile(file)
 	if err != nil {
 		return err
 	}
 
-	loader, ok := loaders[path.Ext(file)]
+	loader, ok := loaders[strings.ToLower(path.Ext(file))]
 	if !ok {
 		return fmt.Errorf("unrecognized file type: %s", file)
 	}
@@ -40,19 +42,42 @@ func LoadConfig(file string, v interface{}, opts ...Option) error {
 	return loader(content, v)
 }
 
-// LoadConfigFromJsonBytes loads config into v from content json bytes.
-func LoadConfigFromJsonBytes(content []byte, v interface{}) error {
+// LoadConfig loads config into v from file, .json, .yaml and .yml are acceptable.
+// Deprecated: use Load instead.
+func LoadConfig(file string, v interface{}, opts ...Option) error {
+	return Load(file, v, opts...)
+}
+
+// LoadFromJsonBytes loads config into v from content json bytes.
+func LoadFromJsonBytes(content []byte, v interface{}) error {
 	return mapping.UnmarshalJsonBytes(content, v)
 }
 
-// LoadConfigFromYamlBytes loads config into v from content yaml bytes.
-func LoadConfigFromYamlBytes(content []byte, v interface{}) error {
+// LoadConfigFromJsonBytes loads config into v from content json bytes.
+// Deprecated: use LoadFromJsonBytes instead.
+func LoadConfigFromJsonBytes(content []byte, v interface{}) error {
+	return LoadFromJsonBytes(content, v)
+}
+
+// LoadFromTomlBytes loads config into v from content toml bytes.
+func LoadFromTomlBytes(content []byte, v interface{}) error {
+	return mapping.UnmarshalTomlBytes(content, v)
+}
+
+// LoadFromYamlBytes loads config into v from content yaml bytes.
+func LoadFromYamlBytes(content []byte, v interface{}) error {
 	return mapping.UnmarshalYamlBytes(content, v)
 }
 
+// LoadConfigFromYamlBytes loads config into v from content yaml bytes.
+// Deprecated: use LoadFromYamlBytes instead.
+func LoadConfigFromYamlBytes(content []byte, v interface{}) error {
+	return LoadFromYamlBytes(content, v)
+}
+
 // MustLoad loads config into v from path, exits on error.
 func MustLoad(path string, v interface{}, opts ...Option) {
-	if err := LoadConfig(path, v, opts...); err != nil {
+	if err := Load(path, v, opts...); err != nil {
 		log.Fatalf("error: config file %s, %s", path, err.Error())
 	}
 }

core/conf/config_test.go

@@ -6,19 +6,19 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/fs"
-	"github.com/tal-tech/go-zero/core/hash"
+	"github.com/zeromicro/go-zero/core/fs"
+	"github.com/zeromicro/go-zero/core/hash"
 )
 
 func TestLoadConfig_notExists(t *testing.T) {
-	assert.NotNil(t, LoadConfig("not_a_file", nil))
+	assert.NotNil(t, Load("not_a_file", nil))
 }
 
 func TestLoadConfig_notRecogFile(t *testing.T) {
 	filename, err := fs.TempFilenameWithText("hello")
 	assert.Nil(t, err)
 	defer os.Remove(filename)
-	assert.NotNil(t, LoadConfig(filename, nil))
+	assert.NotNil(t, Load(filename, nil))
 }
 
 func TestConfigJson(t *testing.T) {
@@ -57,6 +57,58 @@ func TestConfigJson(t *testing.T) {
 	}
 }
 
+func TestConfigToml(t *testing.T) {
+	text := `a = "foo"
+b = 1
+c = "${FOO}"
+d = "abcd!@#$112"
+`
+	os.Setenv("FOO", "2")
+	defer os.Unsetenv("FOO")
+	tmpfile, err := createTempFile(".toml", text)
+	assert.Nil(t, err)
+	defer os.Remove(tmpfile)
+
+	var val struct {
+		A string `json:"a"`
+		B int    `json:"b"`
+		C string `json:"c"`
+		D string `json:"d"`
+	}
+	MustLoad(tmpfile, &val)
+	assert.Equal(t, "foo", val.A)
+	assert.Equal(t, 1, val.B)
+	assert.Equal(t, "${FOO}", val.C)
+	assert.Equal(t, "abcd!@#$112", val.D)
+}
+
+func TestConfigTomlEnv(t *testing.T) {
+	text := `a = "foo"
+b = 1
+c = "${FOO}"
+d = "abcd!@#112"
+`
+	os.Setenv("FOO", "2")
+	defer os.Unsetenv("FOO")
+	tmpfile, err := createTempFile(".toml", text)
+	assert.Nil(t, err)
+	defer os.Remove(tmpfile)
+
+	var val struct {
+		A string `json:"a"`
+		B int    `json:"b"`
+		C string `json:"c"`
+		D string `json:"d"`
+	}
+
+	MustLoad(tmpfile, &val, UseEnv())
+	assert.Equal(t, "foo", val.A)
+	assert.Equal(t, 1, val.B)
+	assert.Equal(t, "2", val.C)
+	assert.Equal(t, "abcd!@#112", val.D)
+
+}
+
 func TestConfigJsonEnv(t *testing.T) {
 	tests := []string{
 		".json",

core/conf/properties.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/tal-tech/go-zero/core/iox"
+	"github.com/zeromicro/go-zero/core/iox"
 )
 
 // PropertyError represents a configuration error message.

core/conf/properties_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/fs"
+	"github.com/zeromicro/go-zero/core/fs"
 )
 
 func TestProperties(t *testing.T) {

core/conf/readme.md

@@ -0,0 +1,45 @@
+## How to use
+
+1. Define a config structure, like below:
+
+```go
+RestfulConf struct {
+	Host         string        `json:",default=0.0.0.0"`
+	Port         int
+	LogMode      string        `json:",options=[file,console]"
+	Verbose      bool          `json:",optional"`
+	MaxConns     int           `json:",default=10000"`
+	MaxBytes     int64         `json:",default=1048576"`
+	Timeout      time.Duration `json:",default=3s"`
+	CpuThreshold int64         `json:",default=900,range=[0:1000]"`
+}
+```
+
+2. Write the yaml or json config file:
+
+```yaml
+# most fields are optional or have default values
+Port: 8080
+LogMode: console
+# you can use env settings
+MaxBytes: ${MAX_BYTES}
+```
+
+3. Load the config from a file:
+
+```go
+// exit on error
+var config RestfulConf
+conf.MustLoad(configFile, &config)
+
+// or handle the error on your own
+var config RestfulConf
+if err := conf.Load(configFile, &config); err != nil {
+  log.Fatal(err)
+}
+
+// enable reading from environments
+var config RestfulConf
+conf.MustLoad(configFile, &config, conf.UseEnv())
+```
+

core/contextx/unmarshaler.go

@@ -3,7 +3,7 @@ package contextx
 import (
 	"context"
 
-	"github.com/tal-tech/go-zero/core/mapping"
+	"github.com/zeromicro/go-zero/core/mapping"
 )
 
 const contextTagKey = "ctx"

core/discov/accountregistry.go

@@ -1,6 +1,6 @@
 package discov
 
-import "github.com/tal-tech/go-zero/core/discov/internal"
+import "github.com/zeromicro/go-zero/core/discov/internal"
 
 // RegisterAccount registers the username/password to the given etcd cluster.
 func RegisterAccount(endpoints []string, user, pass string) {

core/discov/accountregistry_test.go

@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/discov/internal"
-	"github.com/tal-tech/go-zero/core/stringx"
+	"github.com/zeromicro/go-zero/core/discov/internal"
+	"github.com/zeromicro/go-zero/core/stringx"
 )
 
 func TestRegisterAccount(t *testing.T) {

core/discov/clients.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/tal-tech/go-zero/core/discov/internal"
+	"github.com/zeromicro/go-zero/core/discov/internal"
 )
 
 const (

core/discov/clients_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/discov/internal"
+	"github.com/zeromicro/go-zero/core/discov/internal"
 )
 
 var mockLock sync.Mutex

core/discov/config.go

@@ -2,6 +2,13 @@ package discov
 
 import "errors"
 
+var (
+	// errEmptyEtcdHosts indicates that etcd hosts are empty.
+	errEmptyEtcdHosts = errors.New("empty etcd hosts")
+	// errEmptyEtcdKey indicates that etcd key is empty.
+	errEmptyEtcdKey = errors.New("empty etcd key")
+)
+
 // EtcdConf is the config item with the given key on etcd.
 type EtcdConf struct {
 	Hosts              []string
@@ -27,9 +34,9 @@ func (c EtcdConf) HasTLS() bool {
 // Validate validates c.
 func (c EtcdConf) Validate() error {
 	if len(c.Hosts) == 0 {
-		return errors.New("empty etcd hosts")
+		return errEmptyEtcdHosts
 	} else if len(c.Key) == 0 {
-		return errors.New("empty etcd key")
+		return errEmptyEtcdKey
 	} else {
 		return nil
 	}

core/discov/internal/accountmanager_test.go

@@ -4,7 +4,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/stringx"
+	"github.com/zeromicro/go-zero/core/stringx"
 )
 
 func TestAccount(t *testing.T) {

core/discov/internal/registry.go

@@ -9,11 +9,11 @@ import (
 	"sync"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/contextx"
-	"github.com/tal-tech/go-zero/core/lang"
-	"github.com/tal-tech/go-zero/core/logx"
-	"github.com/tal-tech/go-zero/core/syncx"
-	"github.com/tal-tech/go-zero/core/threading"
+	"github.com/zeromicro/go-zero/core/contextx"
+	"github.com/zeromicro/go-zero/core/lang"
+	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/syncx"
+	"github.com/zeromicro/go-zero/core/threading"
 	clientv3 "go.etcd.io/etcd/client/v3"
 )
 

core/discov/internal/registry_test.go

@@ -7,10 +7,10 @@ import (
 
 	"github.com/golang/mock/gomock"
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/contextx"
-	"github.com/tal-tech/go-zero/core/lang"
-	"github.com/tal-tech/go-zero/core/logx"
-	"github.com/tal-tech/go-zero/core/stringx"
+	"github.com/zeromicro/go-zero/core/contextx"
+	"github.com/zeromicro/go-zero/core/lang"
+	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/stringx"
 	"go.etcd.io/etcd/api/v3/mvccpb"
 	clientv3 "go.etcd.io/etcd/client/v3"
 )

core/discov/publisher.go

@@ -1,12 +1,12 @@
 package discov
 
 import (
-	"github.com/tal-tech/go-zero/core/discov/internal"
-	"github.com/tal-tech/go-zero/core/lang"
-	"github.com/tal-tech/go-zero/core/logx"
-	"github.com/tal-tech/go-zero/core/proc"
-	"github.com/tal-tech/go-zero/core/syncx"
-	"github.com/tal-tech/go-zero/core/threading"
+	"github.com/zeromicro/go-zero/core/discov/internal"
+	"github.com/zeromicro/go-zero/core/lang"
+	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/proc"
+	"github.com/zeromicro/go-zero/core/syncx"
+	"github.com/zeromicro/go-zero/core/threading"
 	clientv3 "go.etcd.io/etcd/client/v3"
 )
 

core/discov/publisher_test.go

@@ -8,10 +8,10 @@ import (
 
 	"github.com/golang/mock/gomock"
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/discov/internal"
-	"github.com/tal-tech/go-zero/core/lang"
-	"github.com/tal-tech/go-zero/core/logx"
-	"github.com/tal-tech/go-zero/core/stringx"
+	"github.com/zeromicro/go-zero/core/discov/internal"
+	"github.com/zeromicro/go-zero/core/lang"
+	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/stringx"
 	clientv3 "go.etcd.io/etcd/client/v3"
 )
 

core/discov/subscriber.go

@@ -4,9 +4,9 @@ import (
 	"sync"
 	"sync/atomic"
 
-	"github.com/tal-tech/go-zero/core/discov/internal"
-	"github.com/tal-tech/go-zero/core/logx"
-	"github.com/tal-tech/go-zero/core/syncx"
+	"github.com/zeromicro/go-zero/core/discov/internal"
+	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/syncx"
 )
 
 type (

core/discov/subscriber_test.go

@@ -5,8 +5,8 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/discov/internal"
-	"github.com/tal-tech/go-zero/core/stringx"
+	"github.com/zeromicro/go-zero/core/discov/internal"
+	"github.com/zeromicro/go-zero/core/stringx"
 )
 
 const (

core/errorx/batcherror.go

@@ -11,10 +11,12 @@ type (
 	errorArray []error
 )
 
-// Add adds err to be.
-func (be *BatchError) Add(err error) {
-	if err != nil {
-		be.errs = append(be.errs, err)
+// Add adds errs to be, nil errors are ignored.
+func (be *BatchError) Add(errs ...error) {
+	for _, err := range errs {
+		if err != nil {
+			be.errs = append(be.errs, err)
+		}
 	}
 }
 

core/executors/delayexecutor.go

@@ -4,7 +4,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/threading"
+	"github.com/zeromicro/go-zero/core/threading"
 )
 
 // A DelayExecutor delays a tasks on given delay interval.

core/executors/lessexecutor.go

@@ -3,8 +3,8 @@ package executors
 import (
 	"time"
 
-	"github.com/tal-tech/go-zero/core/syncx"
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/syncx"
+	"github.com/zeromicro/go-zero/core/timex"
 )
 
 // A LessExecutor is an executor to limit execution once within given time interval.

core/executors/lessexecutor_test.go

@@ -5,7 +5,7 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/timex"
 )
 
 func TestLessExecutor_DoOrDiscard(t *testing.T) {

core/executors/periodicalexecutor.go

@@ -6,11 +6,11 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/lang"
-	"github.com/tal-tech/go-zero/core/proc"
-	"github.com/tal-tech/go-zero/core/syncx"
-	"github.com/tal-tech/go-zero/core/threading"
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/lang"
+	"github.com/zeromicro/go-zero/core/proc"
+	"github.com/zeromicro/go-zero/core/syncx"
+	"github.com/zeromicro/go-zero/core/threading"
+	"github.com/zeromicro/go-zero/core/timex"
 )
 
 const idleRound = 10

core/executors/periodicalexecutor_test.go

@@ -8,7 +8,7 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/timex"
 )
 
 const threshold = 10

core/filex/file_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/fs"
+	"github.com/zeromicro/go-zero/core/fs"
 )
 
 const (

core/filex/lookup_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/fs"
+	"github.com/zeromicro/go-zero/core/fs"
 )
 
 func TestSplitLineChunks(t *testing.T) {

core/filex/rangereader.go

@@ -5,6 +5,9 @@ import (
 	"os"
 )
 
+// errExceedFileSize indicates that the file size is exceeded.
+var errExceedFileSize = errors.New("exceed file size")
+
 // A RangeReader is used to read a range of content from a file.
 type RangeReader struct {
 	file  *os.File
@@ -29,7 +32,7 @@ func (rr *RangeReader) Read(p []byte) (n int, err error) {
 	}
 
 	if rr.stop < rr.start || rr.start >= stat.Size() {
-		return 0, errors.New("exceed file size")
+		return 0, errExceedFileSize
 	}
 
 	if rr.stop-rr.start < int64(len(p)) {

core/filex/rangereader_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/fs"
+	"github.com/zeromicro/go-zero/core/fs"
 )
 
 func TestRangeReader(t *testing.T) {

core/fs/temps.go

@@ -4,7 +4,7 @@ import (
 	"io/ioutil"
 	"os"
 
-	"github.com/tal-tech/go-zero/core/hash"
+	"github.com/zeromicro/go-zero/core/hash"
 )
 
 // TempFileWithText creates the temporary file with the given content,

core/fs/temps_test.go

@@ -0,0 +1,49 @@
+package fs
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestTempFileWithText(t *testing.T) {
+	f, err := TempFileWithText("test")
+	if err != nil {
+		t.Error(err)
+	}
+	if f == nil {
+		t.Error("TempFileWithText returned nil")
+	}
+	if f.Name() == "" {
+		t.Error("TempFileWithText returned empty file name")
+	}
+	defer os.Remove(f.Name())
+
+	bs, err := ioutil.ReadAll(f)
+	assert.Nil(t, err)
+	if len(bs) != 4 {
+		t.Error("TempFileWithText returned wrong file size")
+	}
+	if f.Close() != nil {
+		t.Error("TempFileWithText returned error on close")
+	}
+}
+
+func TestTempFilenameWithText(t *testing.T) {
+	f, err := TempFilenameWithText("test")
+	if err != nil {
+		t.Error(err)
+	}
+	if f == "" {
+		t.Error("TempFilenameWithText returned empty file name")
+	}
+	defer os.Remove(f)
+
+	bs, err := ioutil.ReadFile(f)
+	assert.Nil(t, err)
+	if len(bs) != 4 {
+		t.Error("TempFilenameWithText returned wrong file size")
+	}
+}

core/fx/parallel.go

@@ -1,6 +1,6 @@
 package fx
 
-import "github.com/tal-tech/go-zero/core/threading"
+import "github.com/zeromicro/go-zero/core/threading"
 
 // Parallel runs fns parallelly and waits for done.
 func Parallel(fns ...func()) {

core/fx/retry.go

@@ -1,6 +1,6 @@
 package fx
 
-import "github.com/tal-tech/go-zero/core/errorx"
+import "github.com/zeromicro/go-zero/core/errorx"
 
 const defaultRetryTimes = 3
 

core/fx/stream.go

@@ -4,9 +4,9 @@ import (
 	"sort"
 	"sync"
 
-	"github.com/tal-tech/go-zero/core/collection"
-	"github.com/tal-tech/go-zero/core/lang"
-	"github.com/tal-tech/go-zero/core/threading"
+	"github.com/zeromicro/go-zero/core/collection"
+	"github.com/zeromicro/go-zero/core/lang"
+	"github.com/zeromicro/go-zero/core/threading"
 )
 
 const (

core/fx/stream_test.go

@@ -13,7 +13,8 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/stringx"
+	"github.com/zeromicro/go-zero/core/stringx"
+	"go.uber.org/goleak"
 )
 
 func TestBuffer(t *testing.T) {
@@ -563,9 +564,6 @@ func equal(t *testing.T, stream Stream, data []interface{}) {
 }
 
 func runCheckedTest(t *testing.T, fn func(t *testing.T)) {
-	goroutines := runtime.NumGoroutine()
+	defer goleak.VerifyNone(t)
 	fn(t)
-	// let scheduler schedule first
-	time.Sleep(time.Millisecond)
-	assert.True(t, runtime.NumGoroutine() <= goroutines)
 }

core/hash/consistenthash.go

@@ -6,8 +6,8 @@ import (
 	"strconv"
 	"sync"
 
-	"github.com/tal-tech/go-zero/core/lang"
-	"github.com/tal-tech/go-zero/core/mapping"
+	"github.com/zeromicro/go-zero/core/lang"
+	"github.com/zeromicro/go-zero/core/mapping"
 )
 
 const (

core/hash/consistenthash_test.go

@@ -6,7 +6,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/mathx"
+	"github.com/zeromicro/go-zero/core/mathx"
 )
 
 const (

core/iox/read_test.go

@@ -9,8 +9,8 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/fs"
-	"github.com/tal-tech/go-zero/core/stringx"
+	"github.com/zeromicro/go-zero/core/fs"
+	"github.com/zeromicro/go-zero/core/stringx"
 )
 
 func TestReadText(t *testing.T) {

core/jsonx/json.go

@@ -51,5 +51,5 @@ func unmarshalUseNumber(decoder *json.Decoder, v interface{}) error {
 }
 
 func formatError(v string, err error) error {
-	return fmt.Errorf("string: `%s`, error: `%s`", v, err.Error())
+	return fmt.Errorf("string: `%s`, error: `%w`", v, err)
 }

core/jsonx/json_test.go

@@ -0,0 +1,87 @@
+package jsonx
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestMarshal(t *testing.T) {
+	var v = struct {
+		Name string `json:"name"`
+		Age  int    `json:"age"`
+	}{
+		Name: "John",
+		Age:  30,
+	}
+	bs, err := Marshal(v)
+	assert.Nil(t, err)
+	assert.Equal(t, `{"name":"John","age":30}`, string(bs))
+}
+
+func TestUnmarshal(t *testing.T) {
+	const s = `{"name":"John","age":30}`
+	var v struct {
+		Name string `json:"name"`
+		Age  int    `json:"age"`
+	}
+	err := Unmarshal([]byte(s), &v)
+	assert.Nil(t, err)
+	assert.Equal(t, "John", v.Name)
+	assert.Equal(t, 30, v.Age)
+}
+
+func TestUnmarshalError(t *testing.T) {
+	const s = `{"name":"John","age":30`
+	var v struct {
+		Name string `json:"name"`
+		Age  int    `json:"age"`
+	}
+	err := Unmarshal([]byte(s), &v)
+	assert.NotNil(t, err)
+}
+
+func TestUnmarshalFromString(t *testing.T) {
+	const s = `{"name":"John","age":30}`
+	var v struct {
+		Name string `json:"name"`
+		Age  int    `json:"age"`
+	}
+	err := UnmarshalFromString(s, &v)
+	assert.Nil(t, err)
+	assert.Equal(t, "John", v.Name)
+	assert.Equal(t, 30, v.Age)
+}
+
+func TestUnmarshalFromStringError(t *testing.T) {
+	const s = `{"name":"John","age":30`
+	var v struct {
+		Name string `json:"name"`
+		Age  int    `json:"age"`
+	}
+	err := UnmarshalFromString(s, &v)
+	assert.NotNil(t, err)
+}
+
+func TestUnmarshalFromRead(t *testing.T) {
+	const s = `{"name":"John","age":30}`
+	var v struct {
+		Name string `json:"name"`
+		Age  int    `json:"age"`
+	}
+	err := UnmarshalFromReader(strings.NewReader(s), &v)
+	assert.Nil(t, err)
+	assert.Equal(t, "John", v.Name)
+	assert.Equal(t, 30, v.Age)
+}
+
+func TestUnmarshalFromReaderError(t *testing.T) {
+	const s = `{"name":"John","age":30`
+	var v struct {
+		Name string `json:"name"`
+		Age  int    `json:"age"`
+	}
+	err := UnmarshalFromReader(strings.NewReader(s), &v)
+	assert.NotNil(t, err)
+}

core/limit/periodlimit.go

@@ -5,26 +5,23 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/stores/redis"
+	"github.com/zeromicro/go-zero/core/stores/redis"
 )
 
-const (
-	// to be compatible with aliyun redis, we cannot use `local key = KEYS[1]` to reuse the key
-	periodScript = `local limit = tonumber(ARGV[1])
+// to be compatible with aliyun redis, we cannot use `local key = KEYS[1]` to reuse the key
+const periodScript = `local limit = tonumber(ARGV[1])
 local window = tonumber(ARGV[2])
 local current = redis.call("INCRBY", KEYS[1], 1)
 if current == 1 then
     redis.call("expire", KEYS[1], window)
-    return 1
-elseif current < limit then
+end
+if current < limit then
     return 1
 elseif current == limit then
     return 2
 else
     return 0
 end`
-	zoneDiff = 3600 * 8 // GMT+8 for our services
-)
 
 const (
 	// Unknown means not initialized state.
@@ -104,7 +101,9 @@ func (h *PeriodLimit) Take(key string) (int, error) {
 
 func (h *PeriodLimit) calcExpireSeconds() int {
 	if h.align {
-		unix := time.Now().Unix() + zoneDiff
+		now := time.Now()
+		_, offset := now.Zone()
+		unix := now.Unix() + int64(offset)
 		return h.period - int(unix%int64(h.period))
 	}
 
@@ -112,6 +111,8 @@ func (h *PeriodLimit) calcExpireSeconds() int {
 }
 
 // Align returns a func to customize a PeriodLimit with alignment.
+// For example, if we want to limit end users with 5 sms verification messages every day,
+// we need to align with the local timezone and the start of the day.
 func Align() PeriodOption {
 	return func(l *PeriodLimit) {
 		l.align = true

core/limit/periodlimit_test.go

@@ -5,8 +5,8 @@ import (
 
 	"github.com/alicebob/miniredis/v2"
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/stores/redis"
-	"github.com/tal-tech/go-zero/core/stores/redis/redistest"
+	"github.com/zeromicro/go-zero/core/stores/redis"
+	"github.com/zeromicro/go-zero/core/stores/redis/redistest"
 )
 
 func TestPeriodLimit_Take(t *testing.T) {
@@ -23,10 +23,9 @@ func TestPeriodLimit_RedisUnavailable(t *testing.T) {
 
 	const (
 		seconds = 1
-		total   = 100
 		quota   = 5
 	)
-	l := NewPeriodLimit(seconds, quota, redis.NewRedis(s.Addr(), redis.NodeType), "periodlimit")
+	l := NewPeriodLimit(seconds, quota, redis.New(s.Addr()), "periodlimit")
 	s.Close()
 	val, err := l.Take("first")
 	assert.NotNil(t, err)
@@ -66,3 +65,13 @@ func testPeriodLimit(t *testing.T, opts ...PeriodOption) {
 	assert.Equal(t, 1, hitQuota)
 	assert.Equal(t, total-quota, overQuota)
 }
+
+func TestQuotaFull(t *testing.T) {
+	s, err := miniredis.Run()
+	assert.Nil(t, err)
+
+	l := NewPeriodLimit(1, 1, redis.New(s.Addr()), "periodlimit")
+	val, err := l.Take("first")
+	assert.Nil(t, err)
+	assert.Equal(t, HitQuota, val)
+}

core/limit/tokenlimit.go

@@ -7,8 +7,8 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/logx"
-	"github.com/tal-tech/go-zero/core/stores/redis"
+	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/stores/redis"
 	xrate "golang.org/x/time/rate"
 )
 
@@ -85,8 +85,8 @@ func (lim *TokenLimiter) Allow() bool {
 }
 
 // AllowN reports whether n events may happen at time now.
-// Use this method if you intend to drop / skip events that exceed the rate rate.
-// Otherwise use Reserve or Wait.
+// Use this method if you intend to drop / skip events that exceed the rate.
+// Otherwise, use Reserve or Wait.
 func (lim *TokenLimiter) AllowN(now time.Time, n int) bool {
 	return lim.reserveN(now, n)
 }
@@ -112,7 +112,8 @@ func (lim *TokenLimiter) reserveN(now time.Time, n int) bool {
 	// Lua boolean false -> r Nil bulk reply
 	if err == redis.Nil {
 		return false
-	} else if err != nil {
+	}
+	if err != nil {
 		logx.Errorf("fail to use rate limiter: %s, use in-process limiter for rescue", err)
 		lim.startMonitor()
 		return lim.rescueLimiter.AllowN(now, n)

core/limit/tokenlimit_test.go

@@ -6,9 +6,9 @@ import (
 
 	"github.com/alicebob/miniredis/v2"
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/logx"
-	"github.com/tal-tech/go-zero/core/stores/redis"
-	"github.com/tal-tech/go-zero/core/stores/redis/redistest"
+	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/stores/redis"
+	"github.com/zeromicro/go-zero/core/stores/redis/redistest"
 )
 
 func init() {

core/load/adaptiveshedder.go

@@ -7,11 +7,11 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/collection"
-	"github.com/tal-tech/go-zero/core/logx"
-	"github.com/tal-tech/go-zero/core/stat"
-	"github.com/tal-tech/go-zero/core/syncx"
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/collection"
+	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/stat"
+	"github.com/zeromicro/go-zero/core/syncx"
+	"github.com/zeromicro/go-zero/core/timex"
 )
 
 const (

core/load/adaptiveshedder_test.go

@@ -8,11 +8,11 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/collection"
-	"github.com/tal-tech/go-zero/core/logx"
-	"github.com/tal-tech/go-zero/core/mathx"
-	"github.com/tal-tech/go-zero/core/stat"
-	"github.com/tal-tech/go-zero/core/syncx"
+	"github.com/zeromicro/go-zero/core/collection"
+	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/mathx"
+	"github.com/zeromicro/go-zero/core/stat"
+	"github.com/zeromicro/go-zero/core/syncx"
 )
 
 const (

core/load/sheddergroup.go

@@ -3,7 +3,7 @@ package load
 import (
 	"io"
 
-	"github.com/tal-tech/go-zero/core/syncx"
+	"github.com/zeromicro/go-zero/core/syncx"
 )
 
 // A ShedderGroup is a manager to manage key based shedders.

core/load/sheddingstat.go

@@ -4,8 +4,8 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/logx"
-	"github.com/tal-tech/go-zero/core/stat"
+	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/stat"
 )
 
 type (

core/logx/color.go

@@ -0,0 +1,26 @@
+package logx
+
+import (
+	"sync/atomic"
+
+	"github.com/zeromicro/go-zero/core/color"
+)
+
+// WithColor is a helper function to add color to a string, only in plain encoding.
+func WithColor(text string, colour color.Color) string {
+	if atomic.LoadUint32(&encoding) == plainEncodingType {
+		return color.WithColor(text, colour)
+	}
+
+	return text
+}
+
+// WithColorPadding is a helper function to add color to a string with leading and trailing spaces,
+// only in plain encoding.
+func WithColorPadding(text string, colour color.Color) string {
+	if atomic.LoadUint32(&encoding) == plainEncodingType {
+		return color.WithColorPadding(text, colour)
+	}
+
+	return text
+}

core/logx/color_test.go

@@ -0,0 +1,33 @@
+package logx
+
+import (
+	"sync/atomic"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/zeromicro/go-zero/core/color"
+)
+
+func TestWithColor(t *testing.T) {
+	old := atomic.SwapUint32(&encoding, plainEncodingType)
+	defer atomic.StoreUint32(&encoding, old)
+
+	output := WithColor("hello", color.BgBlue)
+	assert.Equal(t, "hello", output)
+
+	atomic.StoreUint32(&encoding, jsonEncodingType)
+	output = WithColor("hello", color.BgBlue)
+	assert.Equal(t, "hello", output)
+}
+
+func TestWithColorPadding(t *testing.T) {
+	old := atomic.SwapUint32(&encoding, plainEncodingType)
+	defer atomic.StoreUint32(&encoding, old)
+
+	output := WithColorPadding("hello", color.BgBlue)
+	assert.Equal(t, " hello ", output)
+
+	atomic.StoreUint32(&encoding, jsonEncodingType)
+	output = WithColorPadding("hello", color.BgBlue)
+	assert.Equal(t, "hello", output)
+}

core/logx/config.go

@@ -3,10 +3,11 @@ package logx
 // A LogConf is a logging config.
 type LogConf struct {
 	ServiceName         string `json:",optional"`
-	Mode                string `json:",default=console,options=console|file|volume"`
+	Mode                string `json:",default=console,options=[console,file,volume]"`
+	Encoding            string `json:",default=json,options=[json,plain]"`
 	TimeFormat          string `json:",optional"`
 	Path                string `json:",default=logs"`
-	Level               string `json:",default=info,options=info|error|severe"`
+	Level               string `json:",default=info,options=[info,error,severe]"`
 	Compress            bool   `json:",optional"`
 	KeepDays            int    `json:",optional"`
 	StackCooldownMillis int    `json:",default=100"`

core/logx/durationlogger.go

@@ -1,17 +1,13 @@
 package logx
 
 import (
+	"context"
 	"fmt"
-	"io"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/timex"
 )
 
-const durationCallerDepth = 3
-
-type durationLogger logEntry
-
 // WithDuration returns a Logger which logs the given duration.
 func WithDuration(d time.Duration) Logger {
 	return &durationLogger{
@@ -19,57 +15,62 @@ func WithDuration(d time.Duration) Logger {
 	}
 }
 
+type durationLogger logEntry
+
 func (l *durationLogger) Error(v ...interface{}) {
-	if shallLog(ErrorLevel) {
-		l.write(errorLog, levelError, formatWithCaller(fmt.Sprint(v...), durationCallerDepth))
-	}
+	l.err(fmt.Sprint(v...))
 }
 
 func (l *durationLogger) Errorf(format string, v ...interface{}) {
-	if shallLog(ErrorLevel) {
-		l.write(errorLog, levelError, formatWithCaller(fmt.Sprintf(format, v...), durationCallerDepth))
-	}
+	l.err(fmt.Sprintf(format, v...))
 }
 
 func (l *durationLogger) Errorv(v interface{}) {
-	if shallLog(ErrorLevel) {
-		l.write(errorLog, levelError, v)
-	}
+	l.err(v)
+}
+
+func (l *durationLogger) Errorw(msg string, fields ...LogField) {
+	l.err(msg, fields...)
 }
 
 func (l *durationLogger) Info(v ...interface{}) {
-	if shallLog(InfoLevel) {
-		l.write(infoLog, levelInfo, fmt.Sprint(v...))
-	}
+	l.info(fmt.Sprint(v...))
 }
 
 func (l *durationLogger) Infof(format string, v ...interface{}) {
-	if shallLog(InfoLevel) {
-		l.write(infoLog, levelInfo, fmt.Sprintf(format, v...))
-	}
+	l.info(fmt.Sprintf(format, v...))
 }
 
 func (l *durationLogger) Infov(v interface{}) {
-	if shallLog(InfoLevel) {
-		l.write(infoLog, levelInfo, v)
-	}
+	l.info(v)
+}
+
+func (l *durationLogger) Infow(msg string, fields ...LogField) {
+	l.info(msg, fields...)
 }
 
 func (l *durationLogger) Slow(v ...interface{}) {
-	if shallLog(ErrorLevel) {
-		l.write(slowLog, levelSlow, fmt.Sprint(v...))
-	}
+	l.slow(fmt.Sprint(v...))
 }
 
 func (l *durationLogger) Slowf(format string, v ...interface{}) {
-	if shallLog(ErrorLevel) {
-		l.write(slowLog, levelSlow, fmt.Sprintf(format, v...))
-	}
+	l.slow(fmt.Sprintf(format, v...))
 }
 
 func (l *durationLogger) Slowv(v interface{}) {
-	if shallLog(ErrorLevel) {
-		l.write(slowLog, levelSlow, v)
+	l.slow(v)
+}
+
+func (l *durationLogger) Sloww(msg string, fields ...LogField) {
+	l.slow(msg, fields...)
+}
+
+func (l *durationLogger) WithContext(ctx context.Context) Logger {
+	return &traceLogger{
+		ctx: ctx,
+		logEntry: logEntry{
+			Duration: l.Duration,
+		},
 	}
 }
 
@@ -78,11 +79,23 @@ func (l *durationLogger) WithDuration(duration time.Duration) Logger {
 	return l
 }
 
-func (l *durationLogger) write(writer io.Writer, level string, val interface{}) {
-	outputJson(writer, &durationLogger{
-		Timestamp: getTimestamp(),
-		Level:     level,
-		Content:   val,
-		Duration:  l.Duration,
-	})
+func (l *durationLogger) err(v interface{}, fields ...LogField) {
+	if shallLog(ErrorLevel) {
+		fields = append(fields, Field(durationKey, l.Duration))
+		getWriter().Error(v, fields...)
+	}
+}
+
+func (l *durationLogger) info(v interface{}, fields ...LogField) {
+	if shallLog(InfoLevel) {
+		fields = append(fields, Field(durationKey, l.Duration))
+		getWriter().Info(v, fields...)
+	}
+}
+
+func (l *durationLogger) slow(v interface{}, fields ...LogField) {
+	if shallLog(ErrorLevel) {
+		fields = append(fields, Field(durationKey, l.Duration))
+		getWriter().Slow(v, fields...)
+	}
 }

core/logx/durationlogger_test.go

@@ -1,73 +1,161 @@
 package logx
 
 import (
-	"log"
+	"context"
 	"strings"
+	"sync/atomic"
 	"testing"
 	"time"
 
 	"github.com/stretchr/testify/assert"
+	"go.opentelemetry.io/otel"
+	sdktrace "go.opentelemetry.io/otel/sdk/trace"
 )
 
 func TestWithDurationError(t *testing.T) {
-	var builder strings.Builder
-	log.SetOutput(&builder)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	WithDuration(time.Second).Error("foo")
-	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+	assert.True(t, strings.Contains(w.String(), "duration"), w.String())
 }
 
 func TestWithDurationErrorf(t *testing.T) {
-	var builder strings.Builder
-	log.SetOutput(&builder)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	WithDuration(time.Second).Errorf("foo")
-	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+	assert.True(t, strings.Contains(w.String(), "duration"), w.String())
 }
 
 func TestWithDurationErrorv(t *testing.T) {
-	var builder strings.Builder
-	log.SetOutput(&builder)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	WithDuration(time.Second).Errorv("foo")
-	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+	assert.True(t, strings.Contains(w.String(), "duration"), w.String())
+}
+
+func TestWithDurationErrorw(t *testing.T) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	WithDuration(time.Second).Errorw("foo", Field("foo", "bar"))
+	assert.True(t, strings.Contains(w.String(), "duration"), w.String())
+	assert.True(t, strings.Contains(w.String(), "foo"), w.String())
+	assert.True(t, strings.Contains(w.String(), "bar"), w.String())
 }
 
 func TestWithDurationInfo(t *testing.T) {
-	var builder strings.Builder
-	log.SetOutput(&builder)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	WithDuration(time.Second).Info("foo")
-	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+	assert.True(t, strings.Contains(w.String(), "duration"), w.String())
+}
+
+func TestWithDurationInfoConsole(t *testing.T) {
+	old := atomic.LoadUint32(&encoding)
+	atomic.StoreUint32(&encoding, plainEncodingType)
+	defer func() {
+		atomic.StoreUint32(&encoding, old)
+	}()
+
+	w := new(mockWriter)
+	o := writer.Swap(w)
+	defer writer.Store(o)
+
+	WithDuration(time.Second).Info("foo")
+	assert.True(t, strings.Contains(w.String(), "ms"), w.String())
 }
 
 func TestWithDurationInfof(t *testing.T) {
-	var builder strings.Builder
-	log.SetOutput(&builder)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	WithDuration(time.Second).Infof("foo")
-	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+	assert.True(t, strings.Contains(w.String(), "duration"), w.String())
 }
 
 func TestWithDurationInfov(t *testing.T) {
-	var builder strings.Builder
-	log.SetOutput(&builder)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	WithDuration(time.Second).Infov("foo")
-	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+	assert.True(t, strings.Contains(w.String(), "duration"), w.String())
+}
+
+func TestWithDurationInfow(t *testing.T) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	WithDuration(time.Second).Infow("foo", Field("foo", "bar"))
+	assert.True(t, strings.Contains(w.String(), "duration"), w.String())
+	assert.True(t, strings.Contains(w.String(), "foo"), w.String())
+	assert.True(t, strings.Contains(w.String(), "bar"), w.String())
+}
+
+func TestWithDurationWithContextInfow(t *testing.T) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	otp := otel.GetTracerProvider()
+	tp := sdktrace.NewTracerProvider(sdktrace.WithSampler(sdktrace.AlwaysSample()))
+	otel.SetTracerProvider(tp)
+	defer otel.SetTracerProvider(otp)
+
+	ctx, _ := tp.Tracer("foo").Start(context.Background(), "bar")
+	WithDuration(time.Second).WithContext(ctx).Infow("foo", Field("foo", "bar"))
+	assert.True(t, strings.Contains(w.String(), "duration"), w.String())
+	assert.True(t, strings.Contains(w.String(), "foo"), w.String())
+	assert.True(t, strings.Contains(w.String(), "bar"), w.String())
+	assert.True(t, strings.Contains(w.String(), "trace"), w.String())
+	assert.True(t, strings.Contains(w.String(), "span"), w.String())
 }
 
 func TestWithDurationSlow(t *testing.T) {
-	var builder strings.Builder
-	log.SetOutput(&builder)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	WithDuration(time.Second).Slow("foo")
-	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+	assert.True(t, strings.Contains(w.String(), "duration"), w.String())
 }
 
 func TestWithDurationSlowf(t *testing.T) {
-	var builder strings.Builder
-	log.SetOutput(&builder)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	WithDuration(time.Second).WithDuration(time.Hour).Slowf("foo")
-	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+	assert.True(t, strings.Contains(w.String(), "duration"), w.String())
 }
 
 func TestWithDurationSlowv(t *testing.T) {
-	var builder strings.Builder
-	log.SetOutput(&builder)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	WithDuration(time.Second).WithDuration(time.Hour).Slowv("foo")
-	assert.True(t, strings.Contains(builder.String(), "duration"), builder.String())
+	assert.True(t, strings.Contains(w.String(), "duration"), w.String())
+}
+
+func TestWithDurationSloww(t *testing.T) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	WithDuration(time.Second).WithDuration(time.Hour).Sloww("foo", Field("foo", "bar"))
+	assert.True(t, strings.Contains(w.String(), "duration"), w.String())
+	assert.True(t, strings.Contains(w.String(), "foo"), w.String())
+	assert.True(t, strings.Contains(w.String(), "bar"), w.String())
 }

core/logx/lesslogger_test.go

@@ -1,7 +1,6 @@
 package logx
 
 import (
-	"log"
 	"strings"
 	"testing"
 
@@ -9,23 +8,27 @@ import (
 )
 
 func TestLessLogger_Error(t *testing.T) {
-	var builder strings.Builder
-	log.SetOutput(&builder)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	l := NewLessLogger(500)
 	for i := 0; i < 100; i++ {
 		l.Error("hello")
 	}
 
-	assert.Equal(t, 1, strings.Count(builder.String(), "\n"))
+	assert.Equal(t, 1, strings.Count(w.String(), "\n"))
 }
 
 func TestLessLogger_Errorf(t *testing.T) {
-	var builder strings.Builder
-	log.SetOutput(&builder)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	l := NewLessLogger(500)
 	for i := 0; i < 100; i++ {
 		l.Errorf("hello")
 	}
 
-	assert.Equal(t, 1, strings.Count(builder.String(), "\n"))
+	assert.Equal(t, 1, strings.Count(w.String(), "\n"))
 }

core/logx/limitedexecutor.go

@@ -4,8 +4,8 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/syncx"
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/syncx"
+	"github.com/zeromicro/go-zero/core/timex"
 )
 
 type limitedExecutor struct {

core/logx/limitedexecutor_test.go

@@ -6,7 +6,7 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/timex"
 )
 
 func TestLimitedExecutor_logOrDiscard(t *testing.T) {

core/logx/logger.go

@@ -0,0 +1,38 @@
+package logx
+
+import (
+	"context"
+	"time"
+)
+
+// A Logger represents a logger.
+type Logger interface {
+	// Error logs a message at error level.
+	Error(...interface{})
+	// Errorf logs a message at error level.
+	Errorf(string, ...interface{})
+	// Errorv logs a message at error level.
+	Errorv(interface{})
+	// Errorw logs a message at error level.
+	Errorw(string, ...LogField)
+	// Info logs a message at info level.
+	Info(...interface{})
+	// Infof logs a message at info level.
+	Infof(string, ...interface{})
+	// Infov logs a message at info level.
+	Infov(interface{})
+	// Infow logs a message at info level.
+	Infow(string, ...LogField)
+	// Slow logs a message at slow level.
+	Slow(...interface{})
+	// Slowf logs a message at slow level.
+	Slowf(string, ...interface{})
+	// Slowv logs a message at slow level.
+	Slowv(interface{})
+	// Sloww logs a message at slow level.
+	Sloww(string, ...LogField)
+	// WithContext returns a new logger with the given context.
+	WithContext(context.Context) Logger
+	// WithDuration returns a new logger with the given duration.
+	WithDuration(time.Duration) Logger
+}

core/logx/logs.go

@@ -1,82 +1,29 @@
 package logx
 
 import (
-	"encoding/json"
-	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"os"
 	"path"
-	"runtime"
 	"runtime/debug"
-	"strconv"
-	"strings"
-	"sync"
 	"sync/atomic"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/iox"
-	"github.com/tal-tech/go-zero/core/sysx"
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/sysx"
 )
 
-const (
-	// InfoLevel logs everything
-	InfoLevel = iota
-	// ErrorLevel includes errors, slows, stacks
-	ErrorLevel
-	// SevereLevel only log severe messages
-	SevereLevel
-)
-
-const (
-	accessFilename = "access.log"
-	errorFilename  = "error.log"
-	severeFilename = "severe.log"
-	slowFilename   = "slow.log"
-	statFilename   = "stat.log"
-
-	consoleMode = "console"
-	volumeMode  = "volume"
-
-	levelAlert  = "alert"
-	levelInfo   = "info"
-	levelError  = "error"
-	levelSevere = "severe"
-	levelFatal  = "fatal"
-	levelSlow   = "slow"
-	levelStat   = "stat"
-
-	backupFileDelimiter = "-"
-	callerInnerDepth    = 5
-	flags               = 0x0
-)
+const callerDepth = 5
 
 var (
-	// ErrLogPathNotSet is an error that indicates the log path is not set.
-	ErrLogPathNotSet = errors.New("log path must be set")
-	// ErrLogNotInitialized is an error that log is not initialized.
-	ErrLogNotInitialized = errors.New("log not initialized")
-	// ErrLogServiceNameNotSet is an error that indicates that the service name is not set.
-	ErrLogServiceNameNotSet = errors.New("log service name must be set")
-
-	timeFormat   = "2006-01-02T15:04:05.000Z07"
-	writeConsole bool
-	logLevel     uint32
+	timeFormat = "2006-01-02T15:04:05.000Z07:00"
+	logLevel   uint32
+	encoding   uint32 = jsonEncodingType
 	// use uint32 for atomic operations
 	disableStat uint32
-	infoLog     io.WriteCloser
-	errorLog    io.WriteCloser
-	severeLog   io.WriteCloser
-	slowLog     io.WriteCloser
-	statLog     io.WriteCloser
-	stackLog    io.Writer
 
-	once        sync.Once
-	initialized uint32
-	options     logOptions
+	options logOptions
+	writer  = new(atomicWriter)
 )
 
 type (
@@ -84,103 +31,37 @@ type (
 		Timestamp string      `json:"@timestamp"`
 		Level     string      `json:"level"`
 		Duration  string      `json:"duration,omitempty"`
+		Caller    string      `json:"caller,omitempty"`
 		Content   interface{} `json:"content"`
 	}
 
+	logEntryWithFields map[string]interface{}
+
 	logOptions struct {
 		gzipEnabled           bool
 		logStackCooldownMills int
 		keepDays              int
 	}
 
+	// LogField is a key-value pair that will be added to the log entry.
+	LogField struct {
+		Key   string
+		Value interface{}
+	}
+
 	// LogOption defines the method to customize the logging.
 	LogOption func(options *logOptions)
-
-	// A Logger represents a logger.
-	Logger interface {
-		Error(...interface{})
-		Errorf(string, ...interface{})
-		Errorv(interface{})
-		Info(...interface{})
-		Infof(string, ...interface{})
-		Infov(interface{})
-		Slow(...interface{})
-		Slowf(string, ...interface{})
-		Slowv(interface{})
-		WithDuration(time.Duration) Logger
-	}
 )
 
-// MustSetup sets up logging with given config c. It exits on error.
-func MustSetup(c LogConf) {
-	Must(SetUp(c))
-}
-
-// SetUp sets up the logx. If already set up, just return nil.
-// we allow SetUp to be called multiple times, because for example
-// we need to allow different service frameworks to initialize logx respectively.
-// the same logic for SetUp
-func SetUp(c LogConf) error {
-	if len(c.TimeFormat) > 0 {
-		timeFormat = c.TimeFormat
-	}
-
-	switch c.Mode {
-	case consoleMode:
-		setupWithConsole(c)
-		return nil
-	case volumeMode:
-		return setupWithVolume(c)
-	default:
-		return setupWithFiles(c)
-	}
-}
-
 // Alert alerts v in alert level, and the message is written to error log.
 func Alert(v string) {
-	outputText(errorLog, levelAlert, v)
+	getWriter().Alert(v)
 }
 
 // Close closes the logging.
 func Close() error {
-	if writeConsole {
-		return nil
-	}
-
-	if atomic.LoadUint32(&initialized) == 0 {
-		return ErrLogNotInitialized
-	}
-
-	atomic.StoreUint32(&initialized, 0)
-
-	if infoLog != nil {
-		if err := infoLog.Close(); err != nil {
-			return err
-		}
-	}
-
-	if errorLog != nil {
-		if err := errorLog.Close(); err != nil {
-			return err
-		}
-	}
-
-	if severeLog != nil {
-		if err := severeLog.Close(); err != nil {
-			return err
-		}
-	}
-
-	if slowLog != nil {
-		if err := slowLog.Close(); err != nil {
-			return err
-		}
-	}
-
-	if statLog != nil {
-		if err := statLog.Close(); err != nil {
-			return err
-		}
+	if w := writer.Swap(nil); w != nil {
+		return w.(io.Closer).Close()
 	}
 
 	return nil
@@ -188,16 +69,7 @@ func Close() error {
 
 // Disable disables the logging.
 func Disable() {
-	once.Do(func() {
-		atomic.StoreUint32(&initialized, 1)
-
-		infoLog = iox.NopCloser(ioutil.Discard)
-		errorLog = iox.NopCloser(ioutil.Discard)
-		severeLog = iox.NopCloser(ioutil.Discard)
-		slowLog = iox.NopCloser(ioutil.Discard)
-		statLog = iox.NopCloser(ioutil.Discard)
-		stackLog = ioutil.Discard
-	})
+	writer.Store(nopWriter{})
 }
 
 // DisableStat disables the stat logs.
@@ -207,22 +79,12 @@ func DisableStat() {
 
 // Error writes v into error log.
 func Error(v ...interface{}) {
-	ErrorCaller(1, v...)
-}
-
-// ErrorCaller writes v with context into error log.
-func ErrorCaller(callDepth int, v ...interface{}) {
-	errorTextSync(fmt.Sprint(v...), callDepth+callerInnerDepth)
-}
-
-// ErrorCallerf writes v with context in format into error log.
-func ErrorCallerf(callDepth int, format string, v ...interface{}) {
-	errorTextSync(fmt.Errorf(format, v...).Error(), callDepth+callerInnerDepth)
+	errorTextSync(fmt.Sprint(v...))
 }
 
 // Errorf writes v with format into error log.
 func Errorf(format string, v ...interface{}) {
-	ErrorCallerf(1, format, v...)
+	errorTextSync(fmt.Errorf(format, v...).Error())
 }
 
 // ErrorStack writes v along with call stack into error log.
@@ -243,6 +105,49 @@ func Errorv(v interface{}) {
 	errorAnySync(v)
 }
 
+// Errorw writes msg along with fields into error log.
+func Errorw(msg string, fields ...LogField) {
+	errorFieldsSync(msg, fields...)
+}
+
+// Field returns a LogField for the given key and value.
+func Field(key string, value interface{}) LogField {
+	switch val := value.(type) {
+	case error:
+		return LogField{Key: key, Value: val.Error()}
+	case []error:
+		var errs []string
+		for _, err := range val {
+			errs = append(errs, err.Error())
+		}
+		return LogField{Key: key, Value: errs}
+	case time.Duration:
+		return LogField{Key: key, Value: fmt.Sprint(val)}
+	case []time.Duration:
+		var durs []string
+		for _, dur := range val {
+			durs = append(durs, fmt.Sprint(dur))
+		}
+		return LogField{Key: key, Value: durs}
+	case []time.Time:
+		var times []string
+		for _, t := range val {
+			times = append(times, fmt.Sprint(t))
+		}
+		return LogField{Key: key, Value: times}
+	case fmt.Stringer:
+		return LogField{Key: key, Value: val.String()}
+	case []fmt.Stringer:
+		var strs []string
+		for _, str := range val {
+			strs = append(strs, str.String())
+		}
+		return LogField{Key: key, Value: strs}
+	default:
+		return LogField{Key: key, Value: val}
+	}
+}
+
 // Info writes v into access log.
 func Info(v ...interface{}) {
 	infoTextSync(fmt.Sprint(v...))
@@ -258,14 +163,32 @@ func Infov(v interface{}) {
 	infoAnySync(v)
 }
 
-// Must checks if err is nil, otherwise logs the err and exits.
+// Infow writes msg along with fields into access log.
+func Infow(msg string, fields ...LogField) {
+	infoFieldsSync(msg, fields...)
+}
+
+// Must checks if err is nil, otherwise logs the error and exits.
 func Must(err error) {
-	if err != nil {
-		msg := formatWithCaller(err.Error(), 3)
-		log.Print(msg)
-		outputText(severeLog, levelFatal, msg)
-		os.Exit(1)
+	if err == nil {
+		return
 	}
+
+	msg := err.Error()
+	log.Print(msg)
+	getWriter().Severe(msg)
+	os.Exit(1)
+}
+
+// MustSetup sets up logging with given config c. It exits on error.
+func MustSetup(c LogConf) {
+	Must(SetUp(c))
+}
+
+// Reset clears the writer and resets the log level.
+func Reset() Writer {
+	SetLevel(InfoLevel)
+	return writer.Swap(nil)
 }
 
 // SetLevel sets the logging level. It can be used to suppress some logs.
@@ -273,6 +196,43 @@ func SetLevel(level uint32) {
 	atomic.StoreUint32(&logLevel, level)
 }
 
+// SetWriter sets the logging writer. It can be used to customize the logging.
+// Call Reset before calling SetWriter again.
+func SetWriter(w Writer) {
+	if writer.Load() == nil {
+		writer.Store(w)
+	}
+}
+
+// SetUp sets up the logx. If already set up, just return nil.
+// we allow SetUp to be called multiple times, because for example
+// we need to allow different service frameworks to initialize logx respectively.
+// the same logic for SetUp
+func SetUp(c LogConf) error {
+	setupLogLevel(c)
+
+	if len(c.TimeFormat) > 0 {
+		timeFormat = c.TimeFormat
+	}
+
+	switch c.Encoding {
+	case plainEncoding:
+		atomic.StoreUint32(&encoding, plainEncodingType)
+	default:
+		atomic.StoreUint32(&encoding, jsonEncodingType)
+	}
+
+	switch c.Mode {
+	case fileMode:
+		return setupWithFiles(c)
+	case volumeMode:
+		return setupWithVolume(c)
+	default:
+		setupWithConsole()
+		return nil
+	}
+}
+
 // Severe writes v into severe log.
 func Severe(v ...interface{}) {
 	severeSync(fmt.Sprint(v...))
@@ -298,6 +258,11 @@ func Slowv(v interface{}) {
 	slowAnySync(v)
 }
 
+// Sloww writes msg along with fields into slow log.
+func Sloww(msg string, fields ...LogField) {
+	slowFieldsSync(msg, fields...)
+}
+
 // Stat writes v into stat log.
 func Stat(v ...interface{}) {
 	statSync(fmt.Sprint(v...))
@@ -340,52 +305,30 @@ func createOutput(path string) (io.WriteCloser, error) {
 
 func errorAnySync(v interface{}) {
 	if shallLog(ErrorLevel) {
-		outputAny(errorLog, levelError, v)
+		getWriter().Error(v)
 	}
 }
 
-func errorTextSync(msg string, callDepth int) {
+func errorFieldsSync(content string, fields ...LogField) {
 	if shallLog(ErrorLevel) {
-		outputError(errorLog, msg, callDepth)
+		getWriter().Error(content, fields...)
 	}
 }
 
-func formatWithCaller(msg string, callDepth int) string {
-	var buf strings.Builder
-
-	caller := getCaller(callDepth)
-	if len(caller) > 0 {
-		buf.WriteString(caller)
-		buf.WriteByte(' ')
+func errorTextSync(msg string) {
+	if shallLog(ErrorLevel) {
+		getWriter().Error(msg)
 	}
-
-	buf.WriteString(msg)
-
-	return buf.String()
 }
 
-func getCaller(callDepth int) string {
-	var buf strings.Builder
-
-	_, file, line, ok := runtime.Caller(callDepth)
-	if ok {
-		short := file
-		for i := len(file) - 1; i > 0; i-- {
-			if file[i] == '/' {
-				short = file[i+1:]
-				break
-			}
-		}
-		buf.WriteString(short)
-		buf.WriteByte(':')
-		buf.WriteString(strconv.Itoa(line))
+func getWriter() Writer {
+	w := writer.Load()
+	if w == nil {
+		w = newConsoleWriter()
+		writer.Store(w)
 	}
 
-	return buf.String()
-}
-
-func getTimestamp() string {
-	return timex.Time().Format(timeFormat)
+	return w
 }
 
 func handleOptions(opts []LogOption) {
@@ -396,46 +339,19 @@ func handleOptions(opts []LogOption) {
 
 func infoAnySync(val interface{}) {
 	if shallLog(InfoLevel) {
-		outputAny(infoLog, levelInfo, val)
+		getWriter().Info(val)
+	}
+}
+
+func infoFieldsSync(content string, fields ...LogField) {
+	if shallLog(InfoLevel) {
+		getWriter().Info(content, fields...)
 	}
 }
 
 func infoTextSync(msg string) {
 	if shallLog(InfoLevel) {
-		outputText(infoLog, levelInfo, msg)
-	}
-}
-
-func outputAny(writer io.Writer, level string, val interface{}) {
-	info := logEntry{
-		Timestamp: getTimestamp(),
-		Level:     level,
-		Content:   val,
-	}
-	outputJson(writer, info)
-}
-
-func outputText(writer io.Writer, level, msg string) {
-	info := logEntry{
-		Timestamp: getTimestamp(),
-		Level:     level,
-		Content:   msg,
-	}
-	outputJson(writer, info)
-}
-
-func outputError(writer io.Writer, msg string, callDepth int) {
-	content := formatWithCaller(msg, callDepth)
-	outputText(writer, levelError, content)
-}
-
-func outputJson(writer io.Writer, info interface{}) {
-	if content, err := json.Marshal(info); err != nil {
-		log.Println(err.Error())
-	} else if atomic.LoadUint32(&initialized) == 0 || writer == nil {
-		log.Println(string(content))
-	} else {
-		writer.Write(append(content, '\n'))
+		getWriter().Info(msg)
 	}
 }
 
@@ -450,72 +366,18 @@ func setupLogLevel(c LogConf) {
 	}
 }
 
-func setupWithConsole(c LogConf) {
-	once.Do(func() {
-		atomic.StoreUint32(&initialized, 1)
-		writeConsole = true
-		setupLogLevel(c)
-
-		infoLog = newLogWriter(log.New(os.Stdout, "", flags))
-		errorLog = newLogWriter(log.New(os.Stderr, "", flags))
-		severeLog = newLogWriter(log.New(os.Stderr, "", flags))
-		slowLog = newLogWriter(log.New(os.Stderr, "", flags))
-		stackLog = newLessWriter(errorLog, options.logStackCooldownMills)
-		statLog = infoLog
-	})
+func setupWithConsole() {
+	SetWriter(newConsoleWriter())
 }
 
 func setupWithFiles(c LogConf) error {
-	var opts []LogOption
-	var err error
-
-	if len(c.Path) == 0 {
-		return ErrLogPathNotSet
+	w, err := newFileWriter(c)
+	if err != nil {
+		return err
 	}
 
-	opts = append(opts, WithCooldownMillis(c.StackCooldownMillis))
-	if c.Compress {
-		opts = append(opts, WithGzip())
-	}
-	if c.KeepDays > 0 {
-		opts = append(opts, WithKeepDays(c.KeepDays))
-	}
-
-	accessFile := path.Join(c.Path, accessFilename)
-	errorFile := path.Join(c.Path, errorFilename)
-	severeFile := path.Join(c.Path, severeFilename)
-	slowFile := path.Join(c.Path, slowFilename)
-	statFile := path.Join(c.Path, statFilename)
-
-	once.Do(func() {
-		atomic.StoreUint32(&initialized, 1)
-		handleOptions(opts)
-		setupLogLevel(c)
-
-		if infoLog, err = createOutput(accessFile); err != nil {
-			return
-		}
-
-		if errorLog, err = createOutput(errorFile); err != nil {
-			return
-		}
-
-		if severeLog, err = createOutput(severeFile); err != nil {
-			return
-		}
-
-		if slowLog, err = createOutput(slowFile); err != nil {
-			return
-		}
-
-		if statLog, err = createOutput(statFile); err != nil {
-			return
-		}
-
-		stackLog = newLessWriter(errorLog, options.logStackCooldownMills)
-	})
-
-	return err
+	SetWriter(w)
+	return nil
 }
 
 func setupWithVolume(c LogConf) error {
@@ -529,7 +391,7 @@ func setupWithVolume(c LogConf) error {
 
 func severeSync(msg string) {
 	if shallLog(SevereLevel) {
-		outputText(severeLog, levelSevere, fmt.Sprintf("%s\n%s", msg, string(debug.Stack())))
+		getWriter().Severe(fmt.Sprintf("%s\n%s", msg, string(debug.Stack())))
 	}
 }
 
@@ -543,43 +405,30 @@ func shallLogStat() bool {
 
 func slowAnySync(v interface{}) {
 	if shallLog(ErrorLevel) {
-		outputAny(slowLog, levelSlow, v)
+		getWriter().Slow(v)
+	}
+}
+
+func slowFieldsSync(content string, fields ...LogField) {
+	if shallLog(ErrorLevel) {
+		getWriter().Slow(content, fields...)
 	}
 }
 
 func slowTextSync(msg string) {
 	if shallLog(ErrorLevel) {
-		outputText(slowLog, levelSlow, msg)
+		getWriter().Slow(msg)
 	}
 }
 
 func stackSync(msg string) {
 	if shallLog(ErrorLevel) {
-		outputText(stackLog, levelError, fmt.Sprintf("%s\n%s", msg, string(debug.Stack())))
+		getWriter().Stack(fmt.Sprintf("%s\n%s", msg, string(debug.Stack())))
 	}
 }
 
 func statSync(msg string) {
 	if shallLogStat() && shallLog(InfoLevel) {
-		outputText(statLog, levelStat, msg)
+		getWriter().Stat(msg)
 	}
 }
-
-type logWriter struct {
-	logger *log.Logger
-}
-
-func newLogWriter(logger *log.Logger) logWriter {
-	return logWriter{
-		logger: logger,
-	}
-}
-
-func (lw logWriter) Close() error {
-	return nil
-}
-
-func (lw logWriter) Write(data []byte) (int, error) {
-	lw.logger.Print(string(data))
-	return len(data), nil
-}

core/logx/logs_test.go

@@ -4,10 +4,10 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io"
 	"io/ioutil"
 	"log"
 	"os"
+	"reflect"
 	"runtime"
 	"strings"
 	"sync"
@@ -19,8 +19,9 @@ import (
 )
 
 var (
-	s    = []byte("Sending #11 notification (id: 1451875113812010473) in #1 connection")
-	pool = make(chan []byte, 1)
+	s           = []byte("Sending #11 notification (id: 1451875113812010473) in #1 connection")
+	pool        = make(chan []byte, 1)
+	_    Writer = (*mockWriter)(nil)
 )
 
 type mockWriter struct {
@@ -28,10 +29,46 @@ type mockWriter struct {
 	builder strings.Builder
 }
 
-func (mw *mockWriter) Write(data []byte) (int, error) {
+func (mw *mockWriter) Alert(v interface{}) {
 	mw.lock.Lock()
 	defer mw.lock.Unlock()
-	return mw.builder.Write(data)
+	output(&mw.builder, levelAlert, v)
+}
+
+func (mw *mockWriter) Error(v interface{}, fields ...LogField) {
+	mw.lock.Lock()
+	defer mw.lock.Unlock()
+	output(&mw.builder, levelError, v, fields...)
+}
+
+func (mw *mockWriter) Info(v interface{}, fields ...LogField) {
+	mw.lock.Lock()
+	defer mw.lock.Unlock()
+	output(&mw.builder, levelInfo, v, fields...)
+}
+
+func (mw *mockWriter) Severe(v interface{}) {
+	mw.lock.Lock()
+	defer mw.lock.Unlock()
+	output(&mw.builder, levelSevere, v)
+}
+
+func (mw *mockWriter) Slow(v interface{}, fields ...LogField) {
+	mw.lock.Lock()
+	defer mw.lock.Unlock()
+	output(&mw.builder, levelSlow, v, fields...)
+}
+
+func (mw *mockWriter) Stack(v interface{}) {
+	mw.lock.Lock()
+	defer mw.lock.Unlock()
+	output(&mw.builder, levelError, v)
+}
+
+func (mw *mockWriter) Stat(v interface{}, fields ...LogField) {
+	mw.lock.Lock()
+	defer mw.lock.Unlock()
+	output(&mw.builder, levelStat, v, fields...)
 }
 
 func (mw *mockWriter) Close() error {
@@ -56,155 +93,376 @@ func (mw *mockWriter) String() string {
 	return mw.builder.String()
 }
 
+func TestField(t *testing.T) {
+	tests := []struct {
+		name string
+		f    LogField
+		want map[string]interface{}
+	}{
+		{
+			name: "error",
+			f:    Field("foo", errors.New("bar")),
+			want: map[string]interface{}{
+				"foo": "bar",
+			},
+		},
+		{
+			name: "errors",
+			f:    Field("foo", []error{errors.New("bar"), errors.New("baz")}),
+			want: map[string]interface{}{
+				"foo": []interface{}{"bar", "baz"},
+			},
+		},
+		{
+			name: "strings",
+			f:    Field("foo", []string{"bar", "baz"}),
+			want: map[string]interface{}{
+				"foo": []interface{}{"bar", "baz"},
+			},
+		},
+		{
+			name: "duration",
+			f:    Field("foo", time.Second),
+			want: map[string]interface{}{
+				"foo": "1s",
+			},
+		},
+		{
+			name: "durations",
+			f:    Field("foo", []time.Duration{time.Second, 2 * time.Second}),
+			want: map[string]interface{}{
+				"foo": []interface{}{"1s", "2s"},
+			},
+		},
+		{
+			name: "times",
+			f: Field("foo", []time.Time{
+				time.Date(2020, time.January, 1, 0, 0, 0, 0, time.UTC),
+				time.Date(2020, time.January, 2, 0, 0, 0, 0, time.UTC),
+			}),
+			want: map[string]interface{}{
+				"foo": []interface{}{"2020-01-01 00:00:00 +0000 UTC", "2020-01-02 00:00:00 +0000 UTC"},
+			},
+		},
+		{
+			name: "stringer",
+			f:    Field("foo", ValStringer{val: "bar"}),
+			want: map[string]interface{}{
+				"foo": "bar",
+			},
+		},
+		{
+			name: "stringers",
+			f:    Field("foo", []fmt.Stringer{ValStringer{val: "bar"}, ValStringer{val: "baz"}}),
+			want: map[string]interface{}{
+				"foo": []interface{}{"bar", "baz"},
+			},
+		},
+	}
+
+	for _, test := range tests {
+		test := test
+		t.Run(test.name, func(t *testing.T) {
+			w := new(mockWriter)
+			old := writer.Swap(w)
+			defer writer.Store(old)
+
+			Infow("foo", test.f)
+			validateFields(t, w.String(), test.want)
+		})
+	}
+}
+
 func TestFileLineFileMode(t *testing.T) {
-	writer := new(mockWriter)
-	errorLog = writer
-	atomic.StoreUint32(&initialized, 1)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	file, line := getFileLine()
 	Error("anything")
-	assert.True(t, writer.Contains(fmt.Sprintf("%s:%d", file, line+1)))
+	assert.True(t, w.Contains(fmt.Sprintf("%s:%d", file, line+1)))
 
-	writer.Reset()
 	file, line = getFileLine()
 	Errorf("anything %s", "format")
-	assert.True(t, writer.Contains(fmt.Sprintf("%s:%d", file, line+1)))
+	assert.True(t, w.Contains(fmt.Sprintf("%s:%d", file, line+1)))
 }
 
 func TestFileLineConsoleMode(t *testing.T) {
-	writer := new(mockWriter)
-	writeConsole = true
-	errorLog = newLogWriter(log.New(writer, "[ERROR] ", flags))
-	atomic.StoreUint32(&initialized, 1)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	file, line := getFileLine()
 	Error("anything")
-	assert.True(t, writer.Contains(fmt.Sprintf("%s:%d", file, line+1)))
+	assert.True(t, w.Contains(fmt.Sprintf("%s:%d", file, line+1)))
 
-	writer.Reset()
+	w.Reset()
 	file, line = getFileLine()
 	Errorf("anything %s", "format")
-	assert.True(t, writer.Contains(fmt.Sprintf("%s:%d", file, line+1)))
+	assert.True(t, w.Contains(fmt.Sprintf("%s:%d", file, line+1)))
 }
 
 func TestStructedLogAlert(t *testing.T) {
-	doTestStructedLog(t, levelAlert, func(writer io.WriteCloser) {
-		errorLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelAlert, w, func(v ...interface{}) {
 		Alert(fmt.Sprint(v...))
 	})
 }
 
 func TestStructedLogError(t *testing.T) {
-	doTestStructedLog(t, levelError, func(writer io.WriteCloser) {
-		errorLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelError, w, func(v ...interface{}) {
 		Error(v...)
 	})
 }
 
 func TestStructedLogErrorf(t *testing.T) {
-	doTestStructedLog(t, levelError, func(writer io.WriteCloser) {
-		errorLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelError, w, func(v ...interface{}) {
 		Errorf("%s", fmt.Sprint(v...))
 	})
 }
 
 func TestStructedLogErrorv(t *testing.T) {
-	doTestStructedLog(t, levelError, func(writer io.WriteCloser) {
-		errorLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelError, w, func(v ...interface{}) {
 		Errorv(fmt.Sprint(v...))
 	})
 }
 
+func TestStructedLogErrorw(t *testing.T) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelError, w, func(v ...interface{}) {
+		Errorw(fmt.Sprint(v...), Field("foo", "bar"))
+	})
+}
+
 func TestStructedLogInfo(t *testing.T) {
-	doTestStructedLog(t, levelInfo, func(writer io.WriteCloser) {
-		infoLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelInfo, w, func(v ...interface{}) {
 		Info(v...)
 	})
 }
 
 func TestStructedLogInfof(t *testing.T) {
-	doTestStructedLog(t, levelInfo, func(writer io.WriteCloser) {
-		infoLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelInfo, w, func(v ...interface{}) {
 		Infof("%s", fmt.Sprint(v...))
 	})
 }
 
 func TestStructedLogInfov(t *testing.T) {
-	doTestStructedLog(t, levelInfo, func(writer io.WriteCloser) {
-		infoLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelInfo, w, func(v ...interface{}) {
 		Infov(fmt.Sprint(v...))
 	})
 }
 
+func TestStructedLogInfow(t *testing.T) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelInfo, w, func(v ...interface{}) {
+		Infow(fmt.Sprint(v...), Field("foo", "bar"))
+	})
+}
+
+func TestStructedLogInfoConsoleAny(t *testing.T) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLogConsole(t, w, func(v ...interface{}) {
+		old := atomic.LoadUint32(&encoding)
+		atomic.StoreUint32(&encoding, plainEncodingType)
+		defer func() {
+			atomic.StoreUint32(&encoding, old)
+		}()
+
+		Infov(v)
+	})
+}
+
+func TestStructedLogInfoConsoleAnyString(t *testing.T) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLogConsole(t, w, func(v ...interface{}) {
+		old := atomic.LoadUint32(&encoding)
+		atomic.StoreUint32(&encoding, plainEncodingType)
+		defer func() {
+			atomic.StoreUint32(&encoding, old)
+		}()
+
+		Infov(fmt.Sprint(v...))
+	})
+}
+
+func TestStructedLogInfoConsoleAnyError(t *testing.T) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLogConsole(t, w, func(v ...interface{}) {
+		old := atomic.LoadUint32(&encoding)
+		atomic.StoreUint32(&encoding, plainEncodingType)
+		defer func() {
+			atomic.StoreUint32(&encoding, old)
+		}()
+
+		Infov(errors.New(fmt.Sprint(v...)))
+	})
+}
+
+func TestStructedLogInfoConsoleAnyStringer(t *testing.T) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLogConsole(t, w, func(v ...interface{}) {
+		old := atomic.LoadUint32(&encoding)
+		atomic.StoreUint32(&encoding, plainEncodingType)
+		defer func() {
+			atomic.StoreUint32(&encoding, old)
+		}()
+
+		Infov(ValStringer{
+			val: fmt.Sprint(v...),
+		})
+	})
+}
+
+func TestStructedLogInfoConsoleText(t *testing.T) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLogConsole(t, w, func(v ...interface{}) {
+		old := atomic.LoadUint32(&encoding)
+		atomic.StoreUint32(&encoding, plainEncodingType)
+		defer func() {
+			atomic.StoreUint32(&encoding, old)
+		}()
+
+		Info(fmt.Sprint(v...))
+	})
+}
+
 func TestStructedLogSlow(t *testing.T) {
-	doTestStructedLog(t, levelSlow, func(writer io.WriteCloser) {
-		slowLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelSlow, w, func(v ...interface{}) {
 		Slow(v...)
 	})
 }
 
 func TestStructedLogSlowf(t *testing.T) {
-	doTestStructedLog(t, levelSlow, func(writer io.WriteCloser) {
-		slowLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelSlow, w, func(v ...interface{}) {
 		Slowf(fmt.Sprint(v...))
 	})
 }
 
 func TestStructedLogSlowv(t *testing.T) {
-	doTestStructedLog(t, levelSlow, func(writer io.WriteCloser) {
-		slowLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelSlow, w, func(v ...interface{}) {
 		Slowv(fmt.Sprint(v...))
 	})
 }
 
+func TestStructedLogSloww(t *testing.T) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelSlow, w, func(v ...interface{}) {
+		Sloww(fmt.Sprint(v...), Field("foo", time.Second))
+	})
+}
+
 func TestStructedLogStat(t *testing.T) {
-	doTestStructedLog(t, levelStat, func(writer io.WriteCloser) {
-		statLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelStat, w, func(v ...interface{}) {
 		Stat(v...)
 	})
 }
 
 func TestStructedLogStatf(t *testing.T) {
-	doTestStructedLog(t, levelStat, func(writer io.WriteCloser) {
-		statLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelStat, w, func(v ...interface{}) {
 		Statf(fmt.Sprint(v...))
 	})
 }
 
 func TestStructedLogSevere(t *testing.T) {
-	doTestStructedLog(t, levelSevere, func(writer io.WriteCloser) {
-		severeLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelSevere, w, func(v ...interface{}) {
 		Severe(v...)
 	})
 }
 
 func TestStructedLogSeveref(t *testing.T) {
-	doTestStructedLog(t, levelSevere, func(writer io.WriteCloser) {
-		severeLog = writer
-	}, func(v ...interface{}) {
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
+	doTestStructedLog(t, levelSevere, w, func(v ...interface{}) {
 		Severef(fmt.Sprint(v...))
 	})
 }
 
 func TestStructedLogWithDuration(t *testing.T) {
 	const message = "hello there"
-	writer := new(mockWriter)
-	infoLog = writer
-	atomic.StoreUint32(&initialized, 1)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	WithDuration(time.Second).Info(message)
 	var entry logEntry
-	if err := json.Unmarshal([]byte(writer.builder.String()), &entry); err != nil {
+	if err := json.Unmarshal([]byte(w.String()), &entry); err != nil {
 		t.Error(err)
 	}
 	assert.Equal(t, levelInfo, entry.Level)
@@ -215,11 +473,12 @@ func TestStructedLogWithDuration(t *testing.T) {
 func TestSetLevel(t *testing.T) {
 	SetLevel(ErrorLevel)
 	const message = "hello there"
-	writer := new(mockWriter)
-	infoLog = writer
-	atomic.StoreUint32(&initialized, 1)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	Info(message)
-	assert.Equal(t, 0, writer.builder.Len())
+	assert.Equal(t, 0, w.builder.Len())
 }
 
 func TestSetLevelTwiceWithMode(t *testing.T) {
@@ -228,29 +487,35 @@ func TestSetLevelTwiceWithMode(t *testing.T) {
 		"console",
 		"volumn",
 	}
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	for _, mode := range testModes {
-		testSetLevelTwiceWithMode(t, mode)
+		testSetLevelTwiceWithMode(t, mode, w)
 	}
 }
 
 func TestSetLevelWithDuration(t *testing.T) {
 	SetLevel(ErrorLevel)
 	const message = "hello there"
-	writer := new(mockWriter)
-	infoLog = writer
-	atomic.StoreUint32(&initialized, 1)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	WithDuration(time.Second).Info(message)
-	assert.Equal(t, 0, writer.builder.Len())
+	assert.Equal(t, 0, w.builder.Len())
 }
 
 func TestErrorfWithWrappedError(t *testing.T) {
 	SetLevel(ErrorLevel)
 	const message = "there"
-	writer := new(mockWriter)
-	errorLog = writer
-	atomic.StoreUint32(&initialized, 1)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
+
 	Errorf("hello %w", errors.New(message))
-	assert.True(t, strings.Contains(writer.builder.String(), "hello there"))
+	assert.True(t, strings.Contains(w.String(), "hello there"))
 }
 
 func TestMustNil(t *testing.T) {
@@ -258,6 +523,11 @@ func TestMustNil(t *testing.T) {
 }
 
 func TestSetup(t *testing.T) {
+	defer func() {
+		SetLevel(InfoLevel)
+		atomic.StoreUint32(&encoding, jsonEncodingType)
+	}()
+
 	MustSetup(LogConf{
 		ServiceName: "any",
 		Mode:        "console",
@@ -272,6 +542,17 @@ func TestSetup(t *testing.T) {
 		Mode:        "volume",
 		Path:        os.TempDir(),
 	})
+	MustSetup(LogConf{
+		ServiceName: "any",
+		Mode:        "console",
+		TimeFormat:  timeFormat,
+	})
+	MustSetup(LogConf{
+		ServiceName: "any",
+		Mode:        "console",
+		Encoding:    plainEncoding,
+	})
+
 	assert.NotNil(t, setupWithVolume(LogConf{}))
 	assert.NotNil(t, setupWithFiles(LogConf{}))
 	assert.Nil(t, setupWithFiles(LogConf{
@@ -292,6 +573,8 @@ func TestSetup(t *testing.T) {
 	_, err := createOutput("")
 	assert.NotNil(t, err)
 	Disable()
+	SetLevel(InfoLevel)
+	atomic.StoreUint32(&encoding, jsonEncodingType)
 }
 
 func TestDisable(t *testing.T) {
@@ -301,7 +584,6 @@ func TestDisable(t *testing.T) {
 	WithKeepDays(1)(&opt)
 	WithGzip()(&opt)
 	assert.Nil(t, Close())
-	writeConsole = false
 	assert.Nil(t, Close())
 }
 
@@ -309,11 +591,20 @@ func TestDisableStat(t *testing.T) {
 	DisableStat()
 
 	const message = "hello there"
-	writer := new(mockWriter)
-	statLog = writer
-	atomic.StoreUint32(&initialized, 1)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
 	Stat(message)
-	assert.Equal(t, 0, writer.builder.Len())
+	assert.Equal(t, 0, w.builder.Len())
+}
+
+func TestSetWriter(t *testing.T) {
+	Reset()
+	SetWriter(nopWriter{})
+	assert.NotNil(t, writer.Load())
+	assert.True(t, writer.Load() == nopWriter{})
+	SetWriter(new(mockWriter))
+	assert.True(t, writer.Load() == nopWriter{})
 }
 
 func TestWithGzip(t *testing.T) {
@@ -415,15 +706,11 @@ func put(b []byte) {
 	}
 }
 
-func doTestStructedLog(t *testing.T, level string, setup func(writer io.WriteCloser),
-	write func(...interface{})) {
+func doTestStructedLog(t *testing.T, level string, w *mockWriter, write func(...interface{})) {
 	const message = "hello there"
-	writer := new(mockWriter)
-	setup(writer)
-	atomic.StoreUint32(&initialized, 1)
 	write(message)
 	var entry logEntry
-	if err := json.Unmarshal([]byte(writer.builder.String()), &entry); err != nil {
+	if err := json.Unmarshal([]byte(w.String()), &entry); err != nil {
 		t.Error(err)
 	}
 	assert.Equal(t, level, entry.Level)
@@ -432,7 +719,14 @@ func doTestStructedLog(t *testing.T, level string, setup func(writer io.WriteClo
 	assert.True(t, strings.Contains(val, message))
 }
 
-func testSetLevelTwiceWithMode(t *testing.T, mode string) {
+func doTestStructedLogConsole(t *testing.T, w *mockWriter, write func(...interface{})) {
+	const message = "hello there"
+	write(message)
+	assert.True(t, strings.Contains(w.String(), message))
+}
+
+func testSetLevelTwiceWithMode(t *testing.T, mode string, w *mockWriter) {
+	writer.Store(nil)
 	SetUp(LogConf{
 		Mode:  mode,
 		Level: "error",
@@ -444,15 +738,35 @@ func testSetLevelTwiceWithMode(t *testing.T, mode string) {
 		Path:  "/dev/null",
 	})
 	const message = "hello there"
-	writer := new(mockWriter)
-	infoLog = writer
-	atomic.StoreUint32(&initialized, 1)
 	Info(message)
-	assert.Equal(t, 0, writer.builder.Len())
+	assert.Equal(t, 0, w.builder.Len())
 	Infof(message)
-	assert.Equal(t, 0, writer.builder.Len())
+	assert.Equal(t, 0, w.builder.Len())
 	ErrorStack(message)
-	assert.Equal(t, 0, writer.builder.Len())
+	assert.Equal(t, 0, w.builder.Len())
 	ErrorStackf(message)
-	assert.Equal(t, 0, writer.builder.Len())
+	assert.Equal(t, 0, w.builder.Len())
+}
+
+type ValStringer struct {
+	val string
+}
+
+func (v ValStringer) String() string {
+	return v.val
+}
+
+func validateFields(t *testing.T, content string, fields map[string]interface{}) {
+	var m map[string]interface{}
+	if err := json.Unmarshal([]byte(content), &m); err != nil {
+		t.Error(err)
+	}
+
+	for k, v := range fields {
+		if reflect.TypeOf(v).Kind() == reflect.Slice {
+			assert.EqualValues(t, v, m[k])
+		} else {
+			assert.Equal(t, v, m[k], content)
+		}
+	}
 }

core/logx/logwriter.go

@@ -0,0 +1,22 @@
+package logx
+
+import "log"
+
+type logWriter struct {
+	logger *log.Logger
+}
+
+func newLogWriter(logger *log.Logger) logWriter {
+	return logWriter{
+		logger: logger,
+	}
+}
+
+func (lw logWriter) Close() error {
+	return nil
+}
+
+func (lw logWriter) Write(data []byte) (int, error) {
+	lw.logger.Print(string(data))
+	return len(data), nil
+}

core/logx/readme-cn.md

@@ -0,0 +1,197 @@
+<IMG align="right" width="150px" src="https://raw.githubusercontent.com/zeromicro/zero-doc/main/doc/images/go-zero.png">
+
+# logx
+
+[English](readme.md) | 简体中文
+
+## logx 配置
+
+```go
+type LogConf struct {
+	ServiceName         string `json:",optional"`
+	Mode                string `json:",default=console,options=[console,file,volume]"`
+	Encoding            string `json:",default=json,options=[json,plain]"`
+	TimeFormat          string `json:",optional"`
+	Path                string `json:",default=logs"`
+	Level               string `json:",default=info,options=[info,error,severe]"`
+	Compress            bool   `json:",optional"`
+	KeepDays            int    `json:",optional"`
+	StackCooldownMillis int    `json:",default=100"`
+}
+```
+
+- `ServiceName`：设置服务名称，可选。在 `volume` 模式下，该名称用于生成日志文件。在 `rest/zrpc` 服务中，名称将被自动设置为 `rest`或`zrpc` 的名称。
+- `Mode`：输出日志的模式，默认是 `console`
+  - `console` 模式将日志写到 `stdout/stderr`
+  - `file` 模式将日志写到 `Path` 指定目录的文件中
+  - `volume` 模式在 docker 中使用，将日志写入挂载的卷中
+- `Encoding`: 指示如何对日志进行编码，默认是 `json`
+  - `json`模式以 json 格式写日志
+  - `plain`模式用纯文本写日志，并带有终端颜色显示
+- `TimeFormat`：自定义时间格式，可选。默认是 `2006-01-02T15:04:05.000Z07:00`
+- `Path`：设置日志路径，默认为 `logs`
+- `Level`: 用于过滤日志的日志级别。默认为 `info`
+  - `info`，所有日志都被写入
+  - `error`, `info` 的日志被丢弃
+  - `severe`, `info` 和 `error` 日志被丢弃，只有 `severe` 日志被写入
+- `Compress`: 是否压缩日志文件，只在 `file` 模式下工作
+- `KeepDays`：日志文件被保留多少天，在给定的天数之后，过期的文件将被自动删除。对 `console` 模式没有影响
+- `StackCooldownMillis`：多少毫秒后再次写入堆栈跟踪。用来避免堆栈跟踪日志过多
+
+## 打印日志方法
+
+```go
+type Logger interface {
+	// Error logs a message at error level.
+	Error(...interface{})
+	// Errorf logs a message at error level.
+	Errorf(string, ...interface{})
+	// Errorv logs a message at error level.
+	Errorv(interface{})
+	// Errorw logs a message at error level.
+	Errorw(string, ...LogField)
+	// Info logs a message at info level.
+	Info(...interface{})
+	// Infof logs a message at info level.
+	Infof(string, ...interface{})
+	// Infov logs a message at info level.
+	Infov(interface{})
+	// Infow logs a message at info level.
+	Infow(string, ...LogField)
+	// Slow logs a message at slow level.
+	Slow(...interface{})
+	// Slowf logs a message at slow level.
+	Slowf(string, ...interface{})
+	// Slowv logs a message at slow level.
+	Slowv(interface{})
+	// Sloww logs a message at slow level.
+	Sloww(string, ...LogField)
+	// WithContext returns a new logger with the given context.
+	WithContext(context.Context) Logger
+	// WithDuration returns a new logger with the given duration.
+	WithDuration(time.Duration) Logger
+}
+```
+
+- `Error`, `Info`, `Slow`: 将任何类型的信息写进日志，使用 `fmt.Sprint(...)` 来转换为 `string`
+- `Errorf`, `Infof`, `Slowf`: 将指定格式的信息写入日志
+- `Errorv`, `Infov`, `Slowv`: 将任何类型的信息写入日志，用 `json marshal` 编码
+- `Errorw`, `Infow`, `Sloww`: 写日志，并带上给定的 `key:value` 字段
+- `WithContext`：将给定的 ctx 注入日志信息，例如用于记录 `trace-id`和`span-id`
+- `WithDuration`: 将指定的时间写入日志信息中，字段名为 `duration`
+
+## 与第三方日志库集成
+
+- zap
+  - 实现：[https://github.com/zeromicro/zero-contrib/blob/main/logx/zapx/zap.go](https://github.com/zeromicro/zero-contrib/blob/main/logx/zapx/zap.go)
+  - 使用示例：[https://github.com/zeromicro/zero-examples/blob/main/logx/zaplog/main.go](https://github.com/zeromicro/zero-examples/blob/main/logx/zaplog/main.go)
+- logrus
+  - 实现：[https://github.com/zeromicro/zero-contrib/blob/main/logx/logrusx/logrus.go](https://github.com/zeromicro/zero-contrib/blob/main/logx/logrusx/logrus.go)
+  - 使用示例：[https://github.com/zeromicro/zero-examples/blob/main/logx/logrus/main.go](https://github.com/zeromicro/zero-examples/blob/main/logx/logrus/main.go)
+
+对于其它的日志库，请参考上面示例实现，并欢迎提交 `PR` 到 [https://github.com/zeromicro/zero-contrib](https://github.com/zeromicro/zero-contrib)
+
+## 将日志写到指定的存储
+
+`logx`定义了两个接口，方便自定义 `logx`，将日志写入任何存储。
+
+- `logx.NewWriter(w io.Writer)`
+- `logx.SetWriter(write logx.Writer)`
+
+例如，如果我们想把日志写进kafka，而不是控制台或文件，我们可以像下面这样做。
+
+```go
+type KafkaWriter struct {
+	Pusher *kq.Pusher
+}
+
+func NewKafkaWriter(pusher *kq.Pusher) *KafkaWriter {
+	return &KafkaWriter{
+		Pusher: pusher,
+	}
+}
+
+func (w *KafkaWriter) Write(p []byte) (n int, err error) {
+	// writing log with newlines, trim them.
+	if err := w.Pusher.Push(strings.TrimSpace(string(p))); err != nil {
+		return 0, err
+	}
+
+	return len(p), nil
+}
+
+func main() {
+	pusher := kq.NewPusher([]string{"localhost:9092"}, "go-zero")
+	defer pusher.Close()
+
+	writer := logx.NewWriter(NewKafkaWriter(pusher))
+	logx.SetWriter(writer)
+  
+	// more code
+}
+```
+
+完整代码：[https://github.com/zeromicro/zero-examples/blob/main/logx/tokafka/main.go](https://github.com/zeromicro/zero-examples/blob/main/logx/tokafka/main.go)
+
+## 过滤敏感字段
+
+如果我们需要防止  `password` 字段被记录下来，我们可以像下面这样实现。
+
+```go
+type (
+	Message struct {
+		Name     string
+		Password string
+		Message  string
+	}
+
+	SensitiveLogger struct {
+		logx.Writer
+	}
+)
+
+func NewSensitiveLogger(writer logx.Writer) *SensitiveLogger {
+	return &SensitiveLogger{
+		Writer: writer,
+	}
+}
+
+func (l *SensitiveLogger) Info(msg interface{}, fields ...logx.LogField) {
+	if m, ok := msg.(Message); ok {
+		l.Writer.Info(Message{
+			Name:     m.Name,
+			Password: "******",
+			Message:  m.Message,
+		}, fields...)
+	} else {
+		l.Writer.Info(msg, fields...)
+	}
+}
+
+func main() {
+	// setup logx to make sure originalWriter not nil,
+	// the injected writer is only for filtering, like a middleware.
+
+	originalWriter := logx.Reset()
+	writer := NewSensitiveLogger(originalWriter)
+	logx.SetWriter(writer)
+
+	logx.Infov(Message{
+		Name:     "foo",
+		Password: "shouldNotAppear",
+		Message:  "bar",
+	})
+  
+	// more code
+}
+```
+
+完整代码：[https://github.com/zeromicro/zero-examples/blob/main/logx/filterfields/main.go](https://github.com/zeromicro/zero-examples/blob/main/logx/filterfields/main.go)
+
+## 更多示例
+
+[https://github.com/zeromicro/zero-examples/tree/main/logx](https://github.com/zeromicro/zero-examples/tree/main/logx)
+
+## Give a Star! ⭐
+
+如果你正在使用或者觉得这个项目对你有帮助，请 **star** 支持，感谢！

core/logx/readme.md

@@ -0,0 +1,197 @@
+<img align="right" width="150px" src="https://raw.githubusercontent.com/zeromicro/zero-doc/main/doc/images/go-zero.png">
+
+# logx
+
+English | [简体中文](readme-cn.md)
+
+## logx configurations
+
+```go
+type LogConf struct {
+	ServiceName         string `json:",optional"`
+	Mode                string `json:",default=console,options=[console,file,volume]"`
+	Encoding            string `json:",default=json,options=[json,plain]"`
+	TimeFormat          string `json:",optional"`
+	Path                string `json:",default=logs"`
+	Level               string `json:",default=info,options=[info,error,severe]"`
+	Compress            bool   `json:",optional"`
+	KeepDays            int    `json:",optional"`
+	StackCooldownMillis int    `json:",default=100"`
+}
+```
+
+- `ServiceName`: set the service name, optional. on `volume` mode, the name is used to generate the log files. Within `rest/zrpc` services, the name will be set to the name of `rest` or `zrpc` automatically.
+- `Mode`: the mode to output the logs, default is `console`.
+  -  `console` mode writes the logs to `stdout/stderr`.
+  - `file` mode writes the logs to the files specified by `Path`.
+  - `volume` mode is used in docker, to write logs into mounted volumes.
+- `Encoding`: indicates how to encode the logs, default is `json`.
+  - `json` mode writes the logs in json format.
+  - `plain` mode writes the logs with plain text, with terminal color enabled.
+- `TimeFormat`: customize the time format, optional. Default is `2006-01-02T15:04:05.000Z07:00`.
+- `Path`: set the log path, default to `logs`.
+- `Level`: the logging level to filter logs. Default is `info`.
+  - `info`, all logs are written.
+  - `error`, `info` logs are suppressed.
+  - `severe`, `info` and `error` logs are suppressed, only `severe` logs are written.
+- `Compress`: whether or not to compress log files, only works with `file` mode.
+- `KeepDays`: how many days that the log files are kept, after the given days, the outdated files will be deleted automatically. It has no effect on `console` mode.
+- `StackCooldownMillis`: how many milliseconds to rewrite stacktrace again. It’s used to avoid stacktrace flooding.
+
+## Logging methods
+
+```go
+type Logger interface {
+	// Error logs a message at error level.
+	Error(...interface{})
+	// Errorf logs a message at error level.
+	Errorf(string, ...interface{})
+	// Errorv logs a message at error level.
+	Errorv(interface{})
+	// Errorw logs a message at error level.
+	Errorw(string, ...LogField)
+	// Info logs a message at info level.
+	Info(...interface{})
+	// Infof logs a message at info level.
+	Infof(string, ...interface{})
+	// Infov logs a message at info level.
+	Infov(interface{})
+	// Infow logs a message at info level.
+	Infow(string, ...LogField)
+	// Slow logs a message at slow level.
+	Slow(...interface{})
+	// Slowf logs a message at slow level.
+	Slowf(string, ...interface{})
+	// Slowv logs a message at slow level.
+	Slowv(interface{})
+	// Sloww logs a message at slow level.
+	Sloww(string, ...LogField)
+	// WithContext returns a new logger with the given context.
+	WithContext(context.Context) Logger
+	// WithDuration returns a new logger with the given duration.
+	WithDuration(time.Duration) Logger
+}
+```
+
+- `Error`, `Info`, `Slow`: write any kind of messages into logs, with like `fmt.Sprint(…)`.
+- `Errorf`, `Infof`, `Slowf`: write messages with given format into logs.
+- `Errorv`, `Infov`, `Slowv`: write any kind of messages into logs, with json marshalling to encode them.
+- `Errorw`, `Infow`, `Sloww`: write the string message with given `key:value` fields.
+- `WithContext`: inject the given ctx into the log messages, typically used to log `trace-id` and `span-id`.
+- `WithDuration`: write elapsed duration into the log messages, with key `duration`.
+
+## Integrating with third-party logging libs
+
+- zap
+  - implementation: [https://github.com/zeromicro/zero-contrib/blob/main/logx/zapx/zap.go](https://github.com/zeromicro/zero-contrib/blob/main/logx/zapx/zap.go)
+  - usage example: [https://github.com/zeromicro/zero-examples/blob/main/logx/zaplog/main.go](https://github.com/zeromicro/zero-examples/blob/main/logx/zaplog/main.go)
+- logrus
+  - implementation: [https://github.com/zeromicro/zero-contrib/blob/main/logx/logrusx/logrus.go](https://github.com/zeromicro/zero-contrib/blob/main/logx/logrusx/logrus.go)
+  - usage example: [https://github.com/zeromicro/zero-examples/blob/main/logx/logrus/main.go](https://github.com/zeromicro/zero-examples/blob/main/logx/logrus/main.go)
+
+For more libs, please implement and PR to [https://github.com/zeromicro/zero-contrib](https://github.com/zeromicro/zero-contrib)
+
+## Write the logs to specific stores
+
+`logx` defined two interfaces to let you customize `logx` to write logs into any stores.
+
+- `logx.NewWriter(w io.Writer)`
+- `logx.SetWriter(writer logx.Writer)`
+
+For example, if we want to write the logs into kafka instead of console or files, we can do it like below:
+
+```go
+type KafkaWriter struct {
+	Pusher *kq.Pusher
+}
+
+func NewKafkaWriter(pusher *kq.Pusher) *KafkaWriter {
+	return &KafkaWriter{
+		Pusher: pusher,
+	}
+}
+
+func (w *KafkaWriter) Write(p []byte) (n int, err error) {
+	// writing log with newlines, trim them.
+	if err := w.Pusher.Push(strings.TrimSpace(string(p))); err != nil {
+		return 0, err
+	}
+
+	return len(p), nil
+}
+
+func main() {
+	pusher := kq.NewPusher([]string{"localhost:9092"}, "go-zero")
+	defer pusher.Close()
+
+	writer := logx.NewWriter(NewKafkaWriter(pusher))
+	logx.SetWriter(writer)
+  
+	// more code
+}
+```
+
+Complete code: [https://github.com/zeromicro/zero-examples/blob/main/logx/tokafka/main.go](https://github.com/zeromicro/zero-examples/blob/main/logx/tokafka/main.go)
+
+## Filtering sensitive fields
+
+If we need to prevent the `password` fields from logging, we can do it like below:
+
+```go
+type (
+	Message struct {
+		Name     string
+		Password string
+		Message  string
+	}
+
+	SensitiveLogger struct {
+		logx.Writer
+	}
+)
+
+func NewSensitiveLogger(writer logx.Writer) *SensitiveLogger {
+	return &SensitiveLogger{
+		Writer: writer,
+	}
+}
+
+func (l *SensitiveLogger) Info(msg interface{}, fields ...logx.LogField) {
+	if m, ok := msg.(Message); ok {
+		l.Writer.Info(Message{
+			Name:     m.Name,
+			Password: "******",
+			Message:  m.Message,
+		}, fields...)
+	} else {
+		l.Writer.Info(msg, fields...)
+	}
+}
+
+func main() {
+	// setup logx to make sure originalWriter not nil,
+	// the injected writer is only for filtering, like a middleware.
+
+	originalWriter := logx.Reset()
+	writer := NewSensitiveLogger(originalWriter)
+	logx.SetWriter(writer)
+
+	logx.Infov(Message{
+		Name:     "foo",
+		Password: "shouldNotAppear",
+		Message:  "bar",
+	})
+  
+	// more code
+}
+```
+
+Complete code: [https://github.com/zeromicro/zero-examples/blob/main/logx/filterfields/main.go](https://github.com/zeromicro/zero-examples/blob/main/logx/filterfields/main.go)
+
+## More examples
+
+[https://github.com/zeromicro/zero-examples/tree/main/logx](https://github.com/zeromicro/zero-examples/tree/main/logx)
+
+## Give a Star! ⭐
+
+If you like or are using this project to learn or start your solution, please give it a star. Thanks!

core/logx/rotatelogger.go

@@ -13,9 +13,8 @@ import (
 	"sync"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/fs"
-	"github.com/tal-tech/go-zero/core/lang"
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/fs"
+	"github.com/zeromicro/go-zero/core/lang"
 )
 
 const (
@@ -211,6 +210,12 @@ func (l *RotateLogger) maybeCompressFile(file string) {
 			ErrorStack(r)
 		}
 	}()
+
+	if _, err := os.Stat(file); err != nil {
+		// file not exists or other error, ignore compression
+		return
+	}
+
 	compressLogFile(file)
 }
 
@@ -290,12 +295,12 @@ func (l *RotateLogger) write(v []byte) {
 }
 
 func compressLogFile(file string) {
-	start := timex.Now()
+	start := time.Now()
 	Infof("compressing log file: %s", file)
 	if err := gzipFile(file); err != nil {
 		Errorf("compress error: %s", err)
 	} else {
-		Infof("compressed log file: %s, took %s", file, timex.Since(start))
+		Infof("compressed log file: %s, took %s", file, time.Since(start))
 	}
 }
 

core/logx/rotatelogger_test.go

@@ -8,7 +8,7 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/fs"
+	"github.com/zeromicro/go-zero/core/fs"
 )
 
 func TestDailyRotateRuleMarkRotated(t *testing.T) {
@@ -57,6 +57,12 @@ func TestRotateLoggerGetBackupFilename(t *testing.T) {
 }
 
 func TestRotateLoggerMayCompressFile(t *testing.T) {
+	old := os.Stdout
+	os.Stdout = os.NewFile(0, os.DevNull)
+	defer func() {
+		os.Stdout = old
+	}()
+
 	filename, err := fs.TempFilenameWithText("foo")
 	assert.Nil(t, err)
 	if len(filename) > 0 {
@@ -70,15 +76,18 @@ func TestRotateLoggerMayCompressFile(t *testing.T) {
 }
 
 func TestRotateLoggerMayCompressFileTrue(t *testing.T) {
+	old := os.Stdout
+	os.Stdout = os.NewFile(0, os.DevNull)
+	defer func() {
+		os.Stdout = old
+	}()
+
 	filename, err := fs.TempFilenameWithText("foo")
 	assert.Nil(t, err)
 	logger, err := NewLogger(filename, new(DailyRotateRule), true)
 	assert.Nil(t, err)
 	if len(filename) > 0 {
-		defer func() {
-			os.Remove(filename)
-			os.Remove(filepath.Base(logger.getBackupFilename()) + ".gz")
-		}()
+		defer os.Remove(filepath.Base(logger.getBackupFilename()) + ".gz")
 	}
 	logger.maybeCompressFile(filename)
 	_, err = os.Stat(filename)
@@ -92,7 +101,6 @@ func TestRotateLoggerRotate(t *testing.T) {
 	assert.Nil(t, err)
 	if len(filename) > 0 {
 		defer func() {
-			os.Remove(filename)
 			os.Remove(logger.getBackupFilename())
 			os.Remove(filepath.Base(logger.getBackupFilename()) + ".gz")
 		}()
@@ -102,6 +110,10 @@ func TestRotateLoggerRotate(t *testing.T) {
 	case *os.LinkError:
 		// avoid rename error on docker container
 		assert.Equal(t, syscall.EXDEV, v.Err)
+	case *os.PathError:
+		// ignore remove error for tests,
+		// files are cleaned in GitHub actions.
+		assert.Equal(t, "remove", v.Op)
 	default:
 		assert.Nil(t, err)
 	}
@@ -115,12 +127,18 @@ func TestRotateLoggerWrite(t *testing.T) {
 	assert.Nil(t, err)
 	if len(filename) > 0 {
 		defer func() {
-			os.Remove(filename)
 			os.Remove(logger.getBackupFilename())
 			os.Remove(filepath.Base(logger.getBackupFilename()) + ".gz")
 		}()
 	}
+	// the following write calls cannot be changed to Write, because of DATA RACE.
 	logger.write([]byte(`foo`))
 	rule.rotatedTime = time.Now().Add(-time.Hour * 24).Format(dateFormat)
 	logger.write([]byte(`bar`))
+	logger.Close()
+	logger.write([]byte(`baz`))
+}
+
+func TestLogWriterClose(t *testing.T) {
+	assert.Nil(t, newLogWriter(nil).Close())
 }

core/logx/syslog_test.go

@@ -29,20 +29,24 @@ func TestRedirector(t *testing.T) {
 }
 
 func captureOutput(f func()) string {
-	atomic.StoreUint32(&initialized, 1)
-	writer := new(mockWriter)
-	infoLog = writer
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	defer writer.Store(old)
 
 	prevLevel := atomic.LoadUint32(&logLevel)
 	SetLevel(InfoLevel)
 	f()
 	SetLevel(prevLevel)
 
-	return writer.builder.String()
+	return w.String()
 }
 
 func getContent(jsonStr string) string {
 	var entry logEntry
 	json.Unmarshal([]byte(jsonStr), &entry)
-	return entry.Content.(string)
+	val, ok := entry.Content.(string)
+	if ok {
+		return val
+	}
+	return ""
 }

core/logx/tracelogger.go

@@ -3,72 +3,79 @@ package logx
 import (
 	"context"
 	"fmt"
-	"io"
 	"time"
 
-	"github.com/tal-tech/go-zero/core/timex"
+	"github.com/zeromicro/go-zero/core/timex"
 	"go.opentelemetry.io/otel/trace"
 )
 
+// WithContext sets ctx to log, for keeping tracing information.
+func WithContext(ctx context.Context) Logger {
+	return &traceLogger{
+		ctx: ctx,
+	}
+}
+
 type traceLogger struct {
 	logEntry
-	Trace string `json:"trace,omitempty"`
-	Span  string `json:"span,omitempty"`
-	ctx   context.Context
+	ctx context.Context
 }
 
 func (l *traceLogger) Error(v ...interface{}) {
-	if shallLog(ErrorLevel) {
-		l.write(errorLog, levelError, formatWithCaller(fmt.Sprint(v...), durationCallerDepth))
-	}
+	l.err(fmt.Sprint(v...))
 }
 
 func (l *traceLogger) Errorf(format string, v ...interface{}) {
-	if shallLog(ErrorLevel) {
-		l.write(errorLog, levelError, formatWithCaller(fmt.Sprintf(format, v...), durationCallerDepth))
-	}
+	l.err(fmt.Sprintf(format, v...))
 }
 
 func (l *traceLogger) Errorv(v interface{}) {
-	if shallLog(ErrorLevel) {
-		l.write(errorLog, levelError, v)
-	}
+	l.err(fmt.Sprint(v))
+}
+
+func (l *traceLogger) Errorw(msg string, fields ...LogField) {
+	l.err(msg, fields...)
 }
 
 func (l *traceLogger) Info(v ...interface{}) {
-	if shallLog(InfoLevel) {
-		l.write(infoLog, levelInfo, fmt.Sprint(v...))
-	}
+	l.info(fmt.Sprint(v...))
 }
 
 func (l *traceLogger) Infof(format string, v ...interface{}) {
-	if shallLog(InfoLevel) {
-		l.write(infoLog, levelInfo, fmt.Sprintf(format, v...))
-	}
+	l.info(fmt.Sprintf(format, v...))
 }
 
 func (l *traceLogger) Infov(v interface{}) {
-	if shallLog(InfoLevel) {
-		l.write(infoLog, levelInfo, v)
-	}
+	l.info(v)
+}
+
+func (l *traceLogger) Infow(msg string, fields ...LogField) {
+	l.info(msg, fields...)
 }
 
 func (l *traceLogger) Slow(v ...interface{}) {
-	if shallLog(ErrorLevel) {
-		l.write(slowLog, levelSlow, fmt.Sprint(v...))
-	}
+	l.slow(fmt.Sprint(v...))
 }
 
 func (l *traceLogger) Slowf(format string, v ...interface{}) {
-	if shallLog(ErrorLevel) {
-		l.write(slowLog, levelSlow, fmt.Sprintf(format, v...))
-	}
+	l.slow(fmt.Sprintf(format, v...))
 }
 
 func (l *traceLogger) Slowv(v interface{}) {
-	if shallLog(ErrorLevel) {
-		l.write(slowLog, levelSlow, v)
+	l.slow(v)
+}
+
+func (l *traceLogger) Sloww(msg string, fields ...LogField) {
+	l.slow(msg, fields...)
+}
+
+func (l *traceLogger) WithContext(ctx context.Context) Logger {
+	if ctx == nil {
+		return l
 	}
+
+	l.ctx = ctx
+	return l
 }
 
 func (l *traceLogger) WithDuration(duration time.Duration) Logger {
@@ -76,23 +83,37 @@ func (l *traceLogger) WithDuration(duration time.Duration) Logger {
 	return l
 }
 
-func (l *traceLogger) write(writer io.Writer, level string, val interface{}) {
-	outputJson(writer, &traceLogger{
-		logEntry: logEntry{
-			Timestamp: getTimestamp(),
-			Level:     level,
-			Duration:  l.Duration,
-			Content:   val,
-		},
-		Trace: traceIdFromContext(l.ctx),
-		Span:  spanIdFromContext(l.ctx),
-	})
+func (l *traceLogger) buildFields(fields ...LogField) []LogField {
+	if len(l.Duration) > 0 {
+		fields = append(fields, Field(durationKey, l.Duration))
+	}
+	traceID := traceIdFromContext(l.ctx)
+	if len(traceID) > 0 {
+		fields = append(fields, Field(traceKey, traceID))
+	}
+	spanID := spanIdFromContext(l.ctx)
+	if len(spanID) > 0 {
+		fields = append(fields, Field(spanKey, spanID))
+	}
+
+	return fields
 }
 
-// WithContext sets ctx to log, for keeping tracing information.
-func WithContext(ctx context.Context) Logger {
-	return &traceLogger{
-		ctx: ctx,
+func (l *traceLogger) err(v interface{}, fields ...LogField) {
+	if shallLog(ErrorLevel) {
+		getWriter().Error(v, l.buildFields(fields...)...)
+	}
+}
+
+func (l *traceLogger) info(v interface{}, fields ...LogField) {
+	if shallLog(InfoLevel) {
+		getWriter().Info(v, l.buildFields(fields...)...)
+	}
+}
+
+func (l *traceLogger) slow(v interface{}, fields ...LogField) {
+	if shallLog(ErrorLevel) {
+		getWriter().Slow(v, l.buildFields(fields...)...)
 	}
 }
 

core/logx/tracelogger_test.go

@@ -2,7 +2,8 @@ package logx
 
 import (
 	"context"
-	"log"
+	"encoding/json"
+	"io"
 	"strings"
 	"sync/atomic"
 	"testing"
@@ -13,111 +14,207 @@ import (
 	sdktrace "go.opentelemetry.io/otel/sdk/trace"
 )
 
-const (
-	traceKey = "trace"
-	spanKey  = "span"
-)
-
 func TestTraceLog(t *testing.T) {
-	var buf mockWriter
-	atomic.StoreUint32(&initialized, 1)
+	SetLevel(InfoLevel)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	writer.lock.RLock()
+	defer func() {
+		writer.lock.RUnlock()
+		writer.Store(old)
+	}()
+
 	otp := otel.GetTracerProvider()
 	tp := sdktrace.NewTracerProvider(sdktrace.WithSampler(sdktrace.AlwaysSample()))
 	otel.SetTracerProvider(tp)
 	defer otel.SetTracerProvider(otp)
 
-	ctx, _ := tp.Tracer("foo").Start(context.Background(), "bar")
-	WithContext(ctx).(*traceLogger).write(&buf, levelInfo, testlog)
-	assert.True(t, strings.Contains(buf.String(), traceKey))
-	assert.True(t, strings.Contains(buf.String(), spanKey))
+	ctx, span := tp.Tracer("foo").Start(context.Background(), "bar")
+	defer span.End()
+
+	WithContext(ctx).Info(testlog)
+	validate(t, w.String(), true, true)
 }
 
 func TestTraceError(t *testing.T) {
-	var buf mockWriter
-	atomic.StoreUint32(&initialized, 1)
-	errorLog = newLogWriter(log.New(&buf, "", flags))
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	writer.lock.RLock()
+	defer func() {
+		writer.lock.RUnlock()
+		writer.Store(old)
+	}()
+
 	otp := otel.GetTracerProvider()
 	tp := sdktrace.NewTracerProvider(sdktrace.WithSampler(sdktrace.AlwaysSample()))
 	otel.SetTracerProvider(tp)
 	defer otel.SetTracerProvider(otp)
 
-	ctx, _ := tp.Tracer("foo").Start(context.Background(), "bar")
-	l := WithContext(ctx).(*traceLogger)
-	SetLevel(InfoLevel)
+	ctx, span := tp.Tracer("foo").Start(context.Background(), "bar")
+	defer span.End()
+
+	var nilCtx context.Context
+	l := WithContext(context.Background())
+	l = l.WithContext(nilCtx)
+	l = l.WithContext(ctx)
+	SetLevel(ErrorLevel)
 	l.WithDuration(time.Second).Error(testlog)
-	assert.True(t, strings.Contains(buf.String(), traceKey))
-	assert.True(t, strings.Contains(buf.String(), spanKey))
-	buf.Reset()
+	validate(t, w.String(), true, true)
+	w.Reset()
 	l.WithDuration(time.Second).Errorf(testlog)
-	assert.True(t, strings.Contains(buf.String(), traceKey))
-	assert.True(t, strings.Contains(buf.String(), spanKey))
-	buf.Reset()
+	validate(t, w.String(), true, true)
+	w.Reset()
 	l.WithDuration(time.Second).Errorv(testlog)
-	assert.True(t, strings.Contains(buf.String(), traceKey))
-	assert.True(t, strings.Contains(buf.String(), spanKey))
+	validate(t, w.String(), true, true)
+	w.Reset()
+	l.WithDuration(time.Second).Errorw(testlog, Field("foo", "bar"))
+	validate(t, w.String(), true, true)
+	assert.True(t, strings.Contains(w.String(), "foo"), w.String())
+	assert.True(t, strings.Contains(w.String(), "bar"), w.String())
 }
 
 func TestTraceInfo(t *testing.T) {
-	var buf mockWriter
-	atomic.StoreUint32(&initialized, 1)
-	infoLog = newLogWriter(log.New(&buf, "", flags))
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	writer.lock.RLock()
+	defer func() {
+		writer.lock.RUnlock()
+		writer.Store(old)
+	}()
+
 	otp := otel.GetTracerProvider()
 	tp := sdktrace.NewTracerProvider(sdktrace.WithSampler(sdktrace.AlwaysSample()))
 	otel.SetTracerProvider(tp)
 	defer otel.SetTracerProvider(otp)
 
-	ctx, _ := tp.Tracer("foo").Start(context.Background(), "bar")
-	l := WithContext(ctx).(*traceLogger)
+	ctx, span := tp.Tracer("foo").Start(context.Background(), "bar")
+	defer span.End()
+
+	SetLevel(InfoLevel)
+	l := WithContext(ctx)
+	l.WithDuration(time.Second).Info(testlog)
+	validate(t, w.String(), true, true)
+	w.Reset()
+	l.WithDuration(time.Second).Infof(testlog)
+	validate(t, w.String(), true, true)
+	w.Reset()
+	l.WithDuration(time.Second).Infov(testlog)
+	validate(t, w.String(), true, true)
+	w.Reset()
+	l.WithDuration(time.Second).Infow(testlog, Field("foo", "bar"))
+	validate(t, w.String(), true, true)
+	assert.True(t, strings.Contains(w.String(), "foo"), w.String())
+	assert.True(t, strings.Contains(w.String(), "bar"), w.String())
+}
+
+func TestTraceInfoConsole(t *testing.T) {
+	old := atomic.SwapUint32(&encoding, jsonEncodingType)
+	defer atomic.StoreUint32(&encoding, old)
+
+	w := new(mockWriter)
+	o := writer.Swap(w)
+	writer.lock.RLock()
+	defer func() {
+		writer.lock.RUnlock()
+		writer.Store(o)
+	}()
+
+	otp := otel.GetTracerProvider()
+	tp := sdktrace.NewTracerProvider(sdktrace.WithSampler(sdktrace.AlwaysSample()))
+	otel.SetTracerProvider(tp)
+	defer otel.SetTracerProvider(otp)
+
+	ctx, span := tp.Tracer("foo").Start(context.Background(), "bar")
+	defer span.End()
+
+	l := WithContext(ctx)
 	SetLevel(InfoLevel)
 	l.WithDuration(time.Second).Info(testlog)
-	assert.True(t, strings.Contains(buf.String(), traceKey))
-	assert.True(t, strings.Contains(buf.String(), spanKey))
-	buf.Reset()
+	validate(t, w.String(), true, true)
+	w.Reset()
 	l.WithDuration(time.Second).Infof(testlog)
-	assert.True(t, strings.Contains(buf.String(), traceKey))
-	assert.True(t, strings.Contains(buf.String(), spanKey))
-	buf.Reset()
+	validate(t, w.String(), true, true)
+	w.Reset()
 	l.WithDuration(time.Second).Infov(testlog)
-	assert.True(t, strings.Contains(buf.String(), traceKey))
-	assert.True(t, strings.Contains(buf.String(), spanKey))
+	validate(t, w.String(), true, true)
 }
 
 func TestTraceSlow(t *testing.T) {
-	var buf mockWriter
-	atomic.StoreUint32(&initialized, 1)
-	slowLog = newLogWriter(log.New(&buf, "", flags))
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	writer.lock.RLock()
+	defer func() {
+		writer.lock.RUnlock()
+		writer.Store(old)
+	}()
+
 	otp := otel.GetTracerProvider()
 	tp := sdktrace.NewTracerProvider(sdktrace.WithSampler(sdktrace.AlwaysSample()))
 	otel.SetTracerProvider(tp)
 	defer otel.SetTracerProvider(otp)
 
-	ctx, _ := tp.Tracer("foo").Start(context.Background(), "bar")
-	l := WithContext(ctx).(*traceLogger)
+	ctx, span := tp.Tracer("foo").Start(context.Background(), "bar")
+	defer span.End()
+
+	l := WithContext(ctx)
 	SetLevel(InfoLevel)
 	l.WithDuration(time.Second).Slow(testlog)
-	assert.True(t, strings.Contains(buf.String(), traceKey))
-	assert.True(t, strings.Contains(buf.String(), spanKey))
-	buf.Reset()
+	assert.True(t, strings.Contains(w.String(), traceKey))
+	assert.True(t, strings.Contains(w.String(), spanKey))
+	w.Reset()
 	l.WithDuration(time.Second).Slowf(testlog)
-	assert.True(t, strings.Contains(buf.String(), traceKey))
-	assert.True(t, strings.Contains(buf.String(), spanKey))
-	buf.Reset()
+	validate(t, w.String(), true, true)
+	w.Reset()
 	l.WithDuration(time.Second).Slowv(testlog)
-	assert.True(t, strings.Contains(buf.String(), traceKey))
-	assert.True(t, strings.Contains(buf.String(), spanKey))
+	validate(t, w.String(), true, true)
+	w.Reset()
+	l.WithDuration(time.Second).Sloww(testlog, Field("foo", "bar"))
+	validate(t, w.String(), true, true)
+	assert.True(t, strings.Contains(w.String(), "foo"), w.String())
+	assert.True(t, strings.Contains(w.String(), "bar"), w.String())
 }
 
 func TestTraceWithoutContext(t *testing.T) {
-	var buf mockWriter
-	atomic.StoreUint32(&initialized, 1)
-	infoLog = newLogWriter(log.New(&buf, "", flags))
-	l := WithContext(context.Background()).(*traceLogger)
+	w := new(mockWriter)
+	old := writer.Swap(w)
+	writer.lock.RLock()
+	defer func() {
+		writer.lock.RUnlock()
+		writer.Store(old)
+	}()
+
+	l := WithContext(context.Background())
 	SetLevel(InfoLevel)
 	l.WithDuration(time.Second).Info(testlog)
-	assert.False(t, strings.Contains(buf.String(), traceKey))
-	assert.False(t, strings.Contains(buf.String(), spanKey))
-	buf.Reset()
+	validate(t, w.String(), false, false)
+	w.Reset()
 	l.WithDuration(time.Second).Infof(testlog)
-	assert.False(t, strings.Contains(buf.String(), traceKey))
-	assert.False(t, strings.Contains(buf.String(), spanKey))
+	validate(t, w.String(), false, false)
+}
+
+func validate(t *testing.T, body string, expectedTrace, expectedSpan bool) {
+	var val mockValue
+	dec := json.NewDecoder(strings.NewReader(body))
+
+	for {
+		var doc mockValue
+		err := dec.Decode(&doc)
+		if err == io.EOF {
+			// all done
+			break
+		}
+		if err != nil {
+			continue
+		}
+
+		val = doc
+	}
+
+	assert.Equal(t, expectedTrace, len(val.Trace) > 0, body)
+	assert.Equal(t, expectedSpan, len(val.Span) > 0, body)
+}
+
+type mockValue struct {
+	Trace string `json:"trace"`
+	Span  string `json:"span"`
 }

core/logx/util.go

@@ -0,0 +1,35 @@
+package logx
+
+import (
+	"fmt"
+	"runtime"
+	"strings"
+	"time"
+)
+
+func getCaller(callDepth int) string {
+	_, file, line, ok := runtime.Caller(callDepth)
+	if !ok {
+		return ""
+	}
+
+	return prettyCaller(file, line)
+}
+
+func getTimestamp() string {
+	return time.Now().Format(timeFormat)
+}
+
+func prettyCaller(file string, line int) string {
+	idx := strings.LastIndexByte(file, '/')
+	if idx < 0 {
+		return fmt.Sprintf("%s:%d", file, line)
+	}
+
+	idx = strings.LastIndexByte(file[:idx], '/')
+	if idx < 0 {
+		return fmt.Sprintf("%s:%d", file, line)
+	}
+
+	return fmt.Sprintf("%s:%d", file[idx+1:], line)
+}

core/logx/util_test.go

@@ -0,0 +1,72 @@
+package logx
+
+import (
+	"path/filepath"
+	"runtime"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGetCaller(t *testing.T) {
+	_, file, _, _ := runtime.Caller(0)
+	assert.Contains(t, getCaller(1), filepath.Base(file))
+	assert.True(t, len(getCaller(1<<10)) == 0)
+}
+
+func TestGetTimestamp(t *testing.T) {
+	ts := getTimestamp()
+	tm, err := time.Parse(timeFormat, ts)
+	assert.Nil(t, err)
+	assert.True(t, time.Since(tm) < time.Minute)
+}
+
+func TestPrettyCaller(t *testing.T) {
+	tests := []struct {
+		name string
+		file string
+		line int
+		want string
+	}{
+		{
+			name: "regular",
+			file: "logx_test.go",
+			line: 123,
+			want: "logx_test.go:123",
+		},
+		{
+			name: "relative",
+			file: "adhoc/logx_test.go",
+			line: 123,
+			want: "adhoc/logx_test.go:123",
+		},
+		{
+			name: "long path",
+			file: "github.com/zeromicro/go-zero/core/logx/util_test.go",
+			line: 12,
+			want: "logx/util_test.go:12",
+		},
+		{
+			name: "local path",
+			file: "/Users/kevin/go-zero/core/logx/util_test.go",
+			line: 1234,
+			want: "logx/util_test.go:1234",
+		},
+	}
+
+	for _, test := range tests {
+		test := test
+		t.Run(test.name, func(t *testing.T) {
+			assert.Equal(t, test.want, prettyCaller(test.file, test.line))
+		})
+	}
+}
+
+func BenchmarkGetCaller(b *testing.B) {
+	b.ReportAllocs()
+
+	for i := 0; i < b.N; i++ {
+		getCaller(1)
+	}
+}

core/logx/vars.go

@@ -0,0 +1,61 @@
+package logx
+
+import "errors"
+
+const (
+	// InfoLevel logs everything
+	InfoLevel uint32 = iota
+	// ErrorLevel includes errors, slows, stacks
+	ErrorLevel
+	// SevereLevel only log severe messages
+	SevereLevel
+)
+
+const (
+	jsonEncodingType = iota
+	plainEncodingType
+
+	jsonEncoding     = "json"
+	plainEncoding    = "plain"
+	plainEncodingSep = '\t'
+)
+
+const (
+	accessFilename = "access.log"
+	errorFilename  = "error.log"
+	severeFilename = "severe.log"
+	slowFilename   = "slow.log"
+	statFilename   = "stat.log"
+
+	consoleMode = "console"
+	fileMode    = "file"
+	volumeMode  = "volume"
+
+	levelAlert  = "alert"
+	levelInfo   = "info"
+	levelError  = "error"
+	levelSevere = "severe"
+	levelFatal  = "fatal"
+	levelSlow   = "slow"
+	levelStat   = "stat"
+
+	backupFileDelimiter = "-"
+	flags               = 0x0
+)
+
+const (
+	callerKey    = "caller"
+	contentKey   = "content"
+	durationKey  = "duration"
+	levelKey     = "level"
+	spanKey      = "span"
+	timestampKey = "@timestamp"
+	traceKey     = "trace"
+)
+
+var (
+	// ErrLogPathNotSet is an error that indicates the log path is not set.
+	ErrLogPathNotSet = errors.New("log path must be set")
+	// ErrLogServiceNameNotSet is an error that indicates that the service name is not set.
+	ErrLogServiceNameNotSet = errors.New("log service name must be set")
+)

core/logx/writer.go

@@ -0,0 +1,348 @@
+package logx
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"path"
+	"strings"
+	"sync"
+	"sync/atomic"
+
+	"github.com/zeromicro/go-zero/core/color"
+)
+
+type (
+	Writer interface {
+		Alert(v interface{})
+		Close() error
+		Error(v interface{}, fields ...LogField)
+		Info(v interface{}, fields ...LogField)
+		Severe(v interface{})
+		Slow(v interface{}, fields ...LogField)
+		Stack(v interface{})
+		Stat(v interface{}, fields ...LogField)
+	}
+
+	atomicWriter struct {
+		writer Writer
+		lock   sync.RWMutex
+	}
+
+	concreteWriter struct {
+		infoLog   io.WriteCloser
+		errorLog  io.WriteCloser
+		severeLog io.WriteCloser
+		slowLog   io.WriteCloser
+		statLog   io.WriteCloser
+		stackLog  io.Writer
+	}
+)
+
+// NewWriter creates a new Writer with the given io.Writer.
+func NewWriter(w io.Writer) Writer {
+	lw := newLogWriter(log.New(w, "", flags))
+
+	return &concreteWriter{
+		infoLog:   lw,
+		errorLog:  lw,
+		severeLog: lw,
+		slowLog:   lw,
+		statLog:   lw,
+		stackLog:  lw,
+	}
+}
+
+func (w *atomicWriter) Load() Writer {
+	w.lock.RLock()
+	defer w.lock.RUnlock()
+	return w.writer
+}
+
+func (w *atomicWriter) Store(v Writer) {
+	w.lock.Lock()
+	w.writer = v
+	w.lock.Unlock()
+}
+
+func (w *atomicWriter) Swap(v Writer) Writer {
+	w.lock.Lock()
+	old := w.writer
+	w.writer = v
+	w.lock.Unlock()
+	return old
+}
+
+func newConsoleWriter() Writer {
+	outLog := newLogWriter(log.New(os.Stdout, "", flags))
+	errLog := newLogWriter(log.New(os.Stderr, "", flags))
+	return &concreteWriter{
+		infoLog:   outLog,
+		errorLog:  errLog,
+		severeLog: errLog,
+		slowLog:   errLog,
+		stackLog:  newLessWriter(errLog, options.logStackCooldownMills),
+		statLog:   outLog,
+	}
+}
+
+func newFileWriter(c LogConf) (Writer, error) {
+	var err error
+	var opts []LogOption
+	var infoLog io.WriteCloser
+	var errorLog io.WriteCloser
+	var severeLog io.WriteCloser
+	var slowLog io.WriteCloser
+	var statLog io.WriteCloser
+	var stackLog io.Writer
+
+	if len(c.Path) == 0 {
+		return nil, ErrLogPathNotSet
+	}
+
+	opts = append(opts, WithCooldownMillis(c.StackCooldownMillis))
+	if c.Compress {
+		opts = append(opts, WithGzip())
+	}
+	if c.KeepDays > 0 {
+		opts = append(opts, WithKeepDays(c.KeepDays))
+	}
+
+	accessFile := path.Join(c.Path, accessFilename)
+	errorFile := path.Join(c.Path, errorFilename)
+	severeFile := path.Join(c.Path, severeFilename)
+	slowFile := path.Join(c.Path, slowFilename)
+	statFile := path.Join(c.Path, statFilename)
+
+	handleOptions(opts)
+	setupLogLevel(c)
+
+	if infoLog, err = createOutput(accessFile); err != nil {
+		return nil, err
+	}
+
+	if errorLog, err = createOutput(errorFile); err != nil {
+		return nil, err
+	}
+
+	if severeLog, err = createOutput(severeFile); err != nil {
+		return nil, err
+	}
+
+	if slowLog, err = createOutput(slowFile); err != nil {
+		return nil, err
+	}
+
+	if statLog, err = createOutput(statFile); err != nil {
+		return nil, err
+	}
+
+	stackLog = newLessWriter(errorLog, options.logStackCooldownMills)
+
+	return &concreteWriter{
+		infoLog:   infoLog,
+		errorLog:  errorLog,
+		severeLog: severeLog,
+		slowLog:   slowLog,
+		statLog:   statLog,
+		stackLog:  stackLog,
+	}, nil
+}
+
+func (w *concreteWriter) Alert(v interface{}) {
+	output(w.errorLog, levelAlert, v)
+}
+
+func (w *concreteWriter) Close() error {
+	if err := w.infoLog.Close(); err != nil {
+		return err
+	}
+
+	if err := w.errorLog.Close(); err != nil {
+		return err
+	}
+
+	if err := w.severeLog.Close(); err != nil {
+		return err
+	}
+
+	if err := w.slowLog.Close(); err != nil {
+		return err
+	}
+
+	return w.statLog.Close()
+}
+
+func (w *concreteWriter) Error(v interface{}, fields ...LogField) {
+	output(w.errorLog, levelError, v, fields...)
+}
+
+func (w *concreteWriter) Info(v interface{}, fields ...LogField) {
+	output(w.infoLog, levelInfo, v, fields...)
+}
+
+func (w *concreteWriter) Severe(v interface{}) {
+	output(w.severeLog, levelFatal, v)
+}
+
+func (w *concreteWriter) Slow(v interface{}, fields ...LogField) {
+	output(w.slowLog, levelSlow, v, fields...)
+}
+
+func (w *concreteWriter) Stack(v interface{}) {
+	output(w.stackLog, levelError, v)
+}
+
+func (w *concreteWriter) Stat(v interface{}, fields ...LogField) {
+	output(w.statLog, levelStat, v, fields...)
+}
+
+type nopWriter struct{}
+
+func (n nopWriter) Alert(_ interface{}) {
+}
+
+func (n nopWriter) Close() error {
+	return nil
+}
+
+func (n nopWriter) Error(_ interface{}, _ ...LogField) {
+}
+
+func (n nopWriter) Info(_ interface{}, _ ...LogField) {
+}
+
+func (n nopWriter) Severe(_ interface{}) {
+}
+
+func (n nopWriter) Slow(_ interface{}, _ ...LogField) {
+}
+
+func (n nopWriter) Stack(_ interface{}) {
+}
+
+func (n nopWriter) Stat(_ interface{}, _ ...LogField) {
+}
+
+func buildFields(fields ...LogField) []string {
+	var items []string
+
+	for _, field := range fields {
+		items = append(items, fmt.Sprintf("%s=%v", field.Key, field.Value))
+	}
+
+	return items
+}
+
+func output(writer io.Writer, level string, val interface{}, fields ...LogField) {
+	fields = append(fields, Field(callerKey, getCaller(callerDepth)))
+
+	switch atomic.LoadUint32(&encoding) {
+	case plainEncodingType:
+		writePlainAny(writer, level, val, buildFields(fields...)...)
+	default:
+		entry := make(logEntryWithFields)
+		for _, field := range fields {
+			entry[field.Key] = field.Value
+		}
+		entry[timestampKey] = getTimestamp()
+		entry[levelKey] = level
+		entry[contentKey] = val
+		writeJson(writer, entry)
+	}
+}
+
+func wrapLevelWithColor(level string) string {
+	var colour color.Color
+	switch level {
+	case levelAlert:
+		colour = color.FgRed
+	case levelError:
+		colour = color.FgRed
+	case levelFatal:
+		colour = color.FgRed
+	case levelInfo:
+		colour = color.FgBlue
+	case levelSlow:
+		colour = color.FgYellow
+	case levelStat:
+		colour = color.FgGreen
+	}
+
+	if colour == color.NoColor {
+		return level
+	}
+
+	return color.WithColorPadding(level, colour)
+}
+
+func writeJson(writer io.Writer, info interface{}) {
+	if content, err := json.Marshal(info); err != nil {
+		log.Println(err.Error())
+	} else if writer == nil {
+		log.Println(string(content))
+	} else {
+		writer.Write(append(content, '\n'))
+	}
+}
+
+func writePlainAny(writer io.Writer, level string, val interface{}, fields ...string) {
+	level = wrapLevelWithColor(level)
+
+	switch v := val.(type) {
+	case string:
+		writePlainText(writer, level, v, fields...)
+	case error:
+		writePlainText(writer, level, v.Error(), fields...)
+	case fmt.Stringer:
+		writePlainText(writer, level, v.String(), fields...)
+	default:
+		var buf strings.Builder
+		buf.WriteString(getTimestamp())
+		buf.WriteByte(plainEncodingSep)
+		buf.WriteString(level)
+		buf.WriteByte(plainEncodingSep)
+		if err := json.NewEncoder(&buf).Encode(val); err != nil {
+			log.Println(err.Error())
+			return
+		}
+
+		for _, item := range fields {
+			buf.WriteByte(plainEncodingSep)
+			buf.WriteString(item)
+		}
+		buf.WriteByte('\n')
+		if writer == nil {
+			log.Println(buf.String())
+			return
+		}
+
+		if _, err := fmt.Fprint(writer, buf.String()); err != nil {
+			log.Println(err.Error())
+		}
+	}
+}
+
+func writePlainText(writer io.Writer, level, msg string, fields ...string) {
+	var buf strings.Builder
+	buf.WriteString(getTimestamp())
+	buf.WriteByte(plainEncodingSep)
+	buf.WriteString(level)
+	buf.WriteByte(plainEncodingSep)
+	buf.WriteString(msg)
+	for _, item := range fields {
+		buf.WriteByte(plainEncodingSep)
+		buf.WriteString(item)
+	}
+	buf.WriteByte('\n')
+	if writer == nil {
+		log.Println(buf.String())
+		return
+	}
+
+	if _, err := fmt.Fprint(writer, buf.String()); err != nil {
+		log.Println(err.Error())
+	}
+}