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How to use Fire method of log Package

Best K6 code snippet using log.Fire

log.go

Source:log.go

1package model2import (3	"context"4	"fmt"5	"sync"6	"time"7	"github.com/derailed/k9s/internal"8	"github.com/derailed/k9s/internal/client"9	"github.com/derailed/k9s/internal/color"10	"github.com/derailed/k9s/internal/config"11	"github.com/derailed/k9s/internal/dao"12	"github.com/rs/zerolog/log"13)14// LogsListener represents a log model listener.15type LogsListener interface {16	// LogChanged notifies the model changed.17	LogChanged([][]byte)18	// LogCleared indicates logs are cleared.19	LogCleared()20	// LogFailed indicates a log failure.21	LogFailed(error)22	// LogStop indicates logging was canceled.23	LogStop()24	// LogResume indicates loggings has resumed.25	LogResume()26	// LogCanceled indicates no more logs will come.27	LogCanceled()28}29// Log represents a resource logger.30type Log struct {31	factory      dao.Factory32	lines        *dao.LogItems33	listeners    []LogsListener34	gvr          client.GVR35	logOptions   *dao.LogOptions36	cancelFn     context.CancelFunc37	mx           sync.RWMutex38	filter       string39	lastSent     int40	flushTimeout time.Duration41}42// NewLog returns a new model.43func NewLog(gvr client.GVR, opts *dao.LogOptions, flushTimeout time.Duration) *Log {44	return &Log{45		gvr:          gvr,46		logOptions:   opts,47		lines:        dao.NewLogItems(),48		flushTimeout: flushTimeout,49	}50}51func (l *Log) GVR() client.GVR {52	return l.gvr53}54func (l *Log) LogOptions() *dao.LogOptions {55	return l.logOptions56}57// SinceSeconds returns since seconds option.58func (l *Log) SinceSeconds() int64 {59	l.mx.RLock()60	defer l.mx.RUnlock()61	return l.logOptions.SinceSeconds62}63// IsHead returns log head option.64func (l *Log) IsHead() bool {65	l.mx.RLock()66	defer l.mx.RUnlock()67	return l.logOptions.Head68}69// ToggleShowTimestamp toggles to logs timestamps.70func (l *Log) ToggleShowTimestamp(b bool) {71	l.logOptions.ShowTimestamp = b72	l.Refresh()73}74func (l *Log) Head(ctx context.Context) {75	l.mx.Lock()76	{77		l.logOptions.Head = true78	}79	l.mx.Unlock()80	l.Restart(ctx)81}82// SetSinceSeconds sets the logs retrieval time.83func (l *Log) SetSinceSeconds(ctx context.Context, i int64) {84	l.logOptions.SinceSeconds, l.logOptions.Head = i, false85	l.Restart(ctx)86}87// Configure sets logger configuration.88func (l *Log) Configure(opts *config.Logger) {89	l.logOptions.Lines = int64(opts.TailCount)90	l.logOptions.SinceSeconds = opts.SinceSeconds91}92// GetPath returns resource path.93func (l *Log) GetPath() string {94	return l.logOptions.Path95}96// GetContainer returns the resource container if any or "" otherwise.97func (l *Log) GetContainer() string {98	return l.logOptions.Container99}100// HasDefaultContainer returns true if the pod has a default container, false otherwise.101func (l *Log) HasDefaultContainer() bool {102	return l.logOptions.DefaultContainer != ""103}104// Init initializes the model.105func (l *Log) Init(f dao.Factory) {106	l.factory = f107}108// Clear the logs.109func (l *Log) Clear() {110	l.mx.Lock()111	{112		l.lines.Clear()113		l.lastSent = 0114	}115	l.mx.Unlock()116	l.fireLogCleared()117}118// Refresh refreshes the logs.119func (l *Log) Refresh() {120	l.fireLogCleared()121	ll := make([][]byte, l.lines.Len())122	l.lines.Render(0, l.logOptions.ShowTimestamp, ll)123	l.fireLogChanged(ll)124}125// Restart restarts the logger.126func (l *Log) Restart(ctx context.Context) {127	l.Stop()128	l.Clear()129	l.fireLogResume()130	l.Start(ctx)131}132// Start starts logging.133func (l *Log) Start(ctx context.Context) {134	if err := l.load(ctx); err != nil {135		log.Error().Err(err).Msgf("Tail logs failed!")136		l.fireLogError(err)137	}138}139// Stop terminates logging.140func (l *Log) Stop() {141	l.cancel()142}143// Set sets the log lines (for testing only!)144func (l *Log) Set(lines *dao.LogItems) {145	l.mx.Lock()146	{147		l.lines.Merge(lines)148	}149	l.mx.Unlock()150	l.fireLogCleared()151	ll := make([][]byte, l.lines.Len())152	l.lines.Render(0, l.logOptions.ShowTimestamp, ll)153	l.fireLogChanged(ll)154}155// ClearFilter resets the log filter if any.156func (l *Log) ClearFilter() {157	l.mx.Lock()158	{159		l.filter = ""160	}161	l.mx.Unlock()162	l.fireLogCleared()163	ll := make([][]byte, l.lines.Len())164	l.lines.Render(0, l.logOptions.ShowTimestamp, ll)165	l.fireLogChanged(ll)166}167// Filter filters the model using either fuzzy or regexp.168func (l *Log) Filter(q string) {169	l.mx.Lock()170	{171		l.filter = q172	}173	l.mx.Unlock()174	l.fireLogCleared()175	l.fireLogBuffChanged(0)176}177func (l *Log) cancel() {178	l.mx.Lock()179	defer l.mx.Unlock()180	if l.cancelFn != nil {181		l.cancelFn()182		log.Debug().Msgf("!!! LOG-MODEL CANCELED !!!")183		l.cancelFn = nil184	}185}186func (l *Log) load(ctx context.Context) error {187	accessor, err := dao.AccessorFor(l.factory, l.gvr)188	if err != nil {189		return err190	}191	loggable, ok := accessor.(dao.Loggable)192	if !ok {193		return fmt.Errorf("Resource %s is not Loggable", l.gvr)194	}195	l.cancel()196	ctx = context.WithValue(ctx, internal.KeyFactory, l.factory)197	ctx, l.cancelFn = context.WithCancel(ctx)198	cc, err := loggable.TailLogs(ctx, l.logOptions)199	if err != nil {200		log.Error().Err(err).Msgf("Tail logs failed")201		l.cancel()202		l.fireLogError(err)203	}204	for _, c := range cc {205		go l.updateLogs(ctx, c)206	}207	return nil208}209// Append adds a log line.210func (l *Log) Append(line *dao.LogItem) {211	if line == nil || line.IsEmpty() {212		return213	}214	l.mx.Lock()215	defer l.mx.Unlock()216	l.logOptions.SinceTime = line.GetTimestamp()217	if l.lines.Len() < int(l.logOptions.Lines) {218		l.lines.Add(line)219		return220	}221	l.lines.Shift(line)222	l.lastSent--223	if l.lastSent < 0 {224		l.lastSent = 0225	}226}227// Notify fires of notifications to the listeners.228func (l *Log) Notify() {229	l.mx.Lock()230	defer l.mx.Unlock()231	if l.lastSent < l.lines.Len() {232		l.fireLogBuffChanged(l.lastSent)233		l.lastSent = l.lines.Len()234	}235}236// ToggleAllContainers toggles to show all containers logs.237func (l *Log) ToggleAllContainers(ctx context.Context) {238	l.logOptions.ToggleAllContainers()239	l.Restart(ctx)240}241func (l *Log) updateLogs(ctx context.Context, c dao.LogChan) {242	defer log.Debug().Msgf("<<< LOG-MODEL UPDATER DONE %s!!!!", l.logOptions.Info())243	log.Debug().Msgf(">>> START LOG-MODEL UPDATER %s", l.logOptions.Info())244	for {245		select {246		case item, ok := <-c:247			if !ok {248				l.Append(item)249				l.Notify()250				return251			}252			if item == dao.ItemEOF {253				l.fireCanceled()254				return255			}256			l.Append(item)257			var overflow bool258			l.mx.RLock()259			{260				overflow = int64(l.lines.Len()-l.lastSent) > l.logOptions.Lines261			}262			l.mx.RUnlock()263			if overflow {264				l.Notify()265			}266		case <-time.After(l.flushTimeout):267			l.Notify()268		case <-ctx.Done():269			return270		}271	}272}273// AddListener adds a new model listener.274func (l *Log) AddListener(listener LogsListener) {275	l.mx.Lock()276	defer l.mx.Unlock()277	l.listeners = append(l.listeners, listener)278}279// RemoveListener delete a listener from the list.280func (l *Log) RemoveListener(listener LogsListener) {281	l.mx.Lock()282	defer l.mx.Unlock()283	victim := -1284	for i, lis := range l.listeners {285		if lis == listener {286			victim = i287			break288		}289	}290	if victim >= 0 {291		l.listeners = append(l.listeners[:victim], l.listeners[victim+1:]...)292	}293}294func (l *Log) applyFilter(index int, q string) ([][]byte, error) {295	if q == "" {296		return nil, nil297	}298	matches, indices, err := l.lines.Filter(index, q, l.logOptions.ShowTimestamp)299	if err != nil {300		return nil, err301	}302	// No filter!303	if matches == nil {304		ll := make([][]byte, l.lines.Len())305		l.lines.Render(index, l.logOptions.ShowTimestamp, ll)306		return ll, nil307	}308	// Blank filter309	if len(matches) == 0 {310		return nil, nil311	}312	filtered := make([][]byte, 0, len(matches))313	ll := make([][]byte, l.lines.Len())314	l.lines.Lines(index, l.logOptions.ShowTimestamp, ll)315	for i, idx := range matches {316		filtered = append(filtered, color.Highlight(ll[idx], indices[i], 209))317	}318	return filtered, nil319}320func (l *Log) fireLogBuffChanged(index int) {321	ll := make([][]byte, l.lines.Len()-index)322	if l.filter == "" {323		l.lines.Render(index, l.logOptions.ShowTimestamp, ll)324	} else {325		ff, err := l.applyFilter(index, l.filter)326		if err != nil {327			l.fireLogError(err)328			return329		}330		ll = ff331	}332	if len(ll) > 0 {333		l.fireLogChanged(ll)334	}335}336func (l *Log) fireLogResume() {337	for _, lis := range l.listeners {338		lis.LogResume()339	}340}341func (l *Log) fireCanceled() {342	for _, lis := range l.listeners {343		lis.LogCanceled()344	}345}346func (l *Log) fireLogError(err error) {347	for _, lis := range l.listeners {348		lis.LogFailed(err)349	}350}351func (l *Log) fireLogChanged(lines [][]byte) {352	for _, lis := range l.listeners {353		lis.LogChanged(lines)354	}355}356func (l *Log) fireLogCleared() {357	var ll []LogsListener358	l.mx.RLock()359	{360		ll = l.listeners361	}362	l.mx.RUnlock()363	for _, lis := range ll {364		lis.LogCleared()365	}366}...

hook_test.go

Source:hook_test.go

...9	. "github.com/sirupsen/logrus"10	. "github.com/sirupsen/logrus/internal/testutils"11)12type TestHook struct {13	Fired bool14}15func (hook *TestHook) Fire(entry *Entry) error {16	hook.Fired = true17	return nil18}19func (hook *TestHook) Levels() []Level {20	return []Level{21		TraceLevel,22		DebugLevel,23		InfoLevel,24		WarnLevel,25		ErrorLevel,26		FatalLevel,27		PanicLevel,28	}29}30func TestHookFires(t *testing.T) {31	hook := new(TestHook)32	LogAndAssertJSON(t, func(log *Logger) {33		log.Hooks.Add(hook)34		assert.Equal(t, hook.Fired, false)35		log.Print("test")36	}, func(fields Fields) {37		assert.Equal(t, hook.Fired, true)38	})39}40type ModifyHook struct {41}42func (hook *ModifyHook) Fire(entry *Entry) error {43	entry.Data["wow"] = "whale"44	return nil45}46func (hook *ModifyHook) Levels() []Level {47	return []Level{48		TraceLevel,49		DebugLevel,50		InfoLevel,51		WarnLevel,52		ErrorLevel,53		FatalLevel,54		PanicLevel,55	}56}57func TestHookCanModifyEntry(t *testing.T) {58	hook := new(ModifyHook)59	LogAndAssertJSON(t, func(log *Logger) {60		log.Hooks.Add(hook)61		log.WithField("wow", "elephant").Print("test")62	}, func(fields Fields) {63		assert.Equal(t, fields["wow"], "whale")64	})65}66func TestCanFireMultipleHooks(t *testing.T) {67	hook1 := new(ModifyHook)68	hook2 := new(TestHook)69	LogAndAssertJSON(t, func(log *Logger) {70		log.Hooks.Add(hook1)71		log.Hooks.Add(hook2)72		log.WithField("wow", "elephant").Print("test")73	}, func(fields Fields) {74		assert.Equal(t, fields["wow"], "whale")75		assert.Equal(t, hook2.Fired, true)76	})77}78type SingleLevelModifyHook struct {79	ModifyHook80}81func (h *SingleLevelModifyHook) Levels() []Level {82	return []Level{InfoLevel}83}84func TestHookEntryIsPristine(t *testing.T) {85	l := New()86	b := &bytes.Buffer{}87	l.Formatter = &JSONFormatter{}88	l.Out = b89	l.AddHook(&SingleLevelModifyHook{})90	l.Error("error message")91	data := map[string]string{}92	err := json.Unmarshal(b.Bytes(), &data)93	require.NoError(t, err)94	_, ok := data["wow"]95	require.False(t, ok)96	b.Reset()97	l.Info("error message")98	data = map[string]string{}99	err = json.Unmarshal(b.Bytes(), &data)100	require.NoError(t, err)101	_, ok = data["wow"]102	require.True(t, ok)103	b.Reset()104	l.Error("error message")105	data = map[string]string{}106	err = json.Unmarshal(b.Bytes(), &data)107	require.NoError(t, err)108	_, ok = data["wow"]109	require.False(t, ok)110	b.Reset()111}112type ErrorHook struct {113	Fired bool114}115func (hook *ErrorHook) Fire(entry *Entry) error {116	hook.Fired = true117	return nil118}119func (hook *ErrorHook) Levels() []Level {120	return []Level{121		ErrorLevel,122	}123}124func TestErrorHookShouldntFireOnInfo(t *testing.T) {125	hook := new(ErrorHook)126	LogAndAssertJSON(t, func(log *Logger) {127		log.Hooks.Add(hook)128		log.Info("test")129	}, func(fields Fields) {130		assert.Equal(t, hook.Fired, false)131	})132}133func TestErrorHookShouldFireOnError(t *testing.T) {134	hook := new(ErrorHook)135	LogAndAssertJSON(t, func(log *Logger) {136		log.Hooks.Add(hook)137		log.Error("test")138	}, func(fields Fields) {139		assert.Equal(t, hook.Fired, true)140	})141}142func TestAddHookRace(t *testing.T) {143	var wg sync.WaitGroup144	wg.Add(2)145	hook := new(ErrorHook)146	LogAndAssertJSON(t, func(log *Logger) {147		go func() {148			defer wg.Done()149			log.AddHook(hook)150		}()151		go func() {152			defer wg.Done()153			log.Error("test")154		}()155		wg.Wait()156	}, func(fields Fields) {157		// the line may have been logged158		// before the hook was added, so we can't159		// actually assert on the hook160	})161}162type HookCallFunc struct {163	F func()164}165func (h *HookCallFunc) Levels() []Level {166	return AllLevels167}168func (h *HookCallFunc) Fire(e *Entry) error {169	h.F()170	return nil171}172func TestHookFireOrder(t *testing.T) {173	checkers := []string{}174	h := LevelHooks{}175	h.Add(&HookCallFunc{F: func() { checkers = append(checkers, "first hook") }})176	h.Add(&HookCallFunc{F: func() { checkers = append(checkers, "second hook") }})177	h.Add(&HookCallFunc{F: func() { checkers = append(checkers, "third hook") }})178	if err := h.Fire(InfoLevel, &Entry{}); err != nil {179		t.Error("unexpected error:", err)180	}181	require.Equal(t, []string{"first hook", "second hook", "third hook"}, checkers)182}...

Fire

Using AI Code Generation

1log.Fire("Hello World")2log.Fire("Hello World")3log.Fire("Hello World")4For example, if you want to make the log variable visible to all the files in the same package and also to all the files in the other packages that import the package, you can use the following code:5import "github.com/username/package-name"6log.Fire("Hello World")7import "github.com/username/package-name"8log.Fire("Hello World")9import "github.com/username/package-name"10log.Fire("Hello World")11import "github.com/username/package-name"12log.Fire("Hello World")

Fire

Using AI Code Generation

1log.Fire("Hello World")2log.Fire("Hello World")3log.Fire("Hello World")4log.Fire("Hello World")5log.Fire("Hello World")6log.Fire("Hello World")7log.Fire("Hello World")8log.Fire("Hello World")9log.Fire("Hello World")10log.Fire("Hello World")11log.Fire("Hello World")12log.Fire("Hello World")13log.Fire("Hello World")14log.Fire("Hello World")15log.Fire("Hello World")16log.Fire("Hello World")17log.Fire("Hello World")18log.Fire("Hello World")19log.Fire("Hello World")20log.Fire("Hello World")21log.Fire("Hello World")22log.Fire("Hello World")

Fire

Using AI Code Generation

1log.Fire("Hello world")2log.Fire("Hello world")3log.Fire("Hello world")4log.Fire("Hello world")5log.Fire("Hello world")6log.Fire("Hello world")7log.Fire("Hello world")8log.Fire("Hello world")9log.Fire("Hello world")10log.Fire("Hello world")11log.Fire("Hello world")12log.Fire("Hello world")13log.Fire("Hello world")14log.Fire("Hello world")15log.Fire("Hello world")16log.Fire("Hello world")17log.Fire("Hello world")18log.Fire("Hello world")19log.Fire("Hello world")20log.Fire("Hello world")21log.Fire("Hello world")22log.Fire("Hello world")

Fire

Using AI Code Generation

1log.Fire("log message");2log.Fire("log message");3log.Fire("log message");4log.Fire("log message");5log.Fire("log message");6log.Fire("log message");7log.Fire("log message");8log.Fire("log message");9log.Fire("log message");10log.Fire("log message");11log.Fire("log message");12log.Fire("log message");13log.Fire("log message");14log.Fire("log message");15log.Fire("log message");16log.Fire("log message");17log.Fire("log message");18log.Fire("log message");19log.Fire("log message");20log.Fire("log message");21log.Fire("log message");22log.Fire("log message");

Fire

Using AI Code Generation

1import (2var log = logging.MustGetLogger("main")3func main() {4	log.Debug("this is a debug message")5	log.Info("this is an info message")6	log.Notice("this is a notice message")7	log.Warning("this is a warning message")8	log.Error("this is an error message")9	log.Critical("this is a critical message")10}

Fire

Using AI Code Generation

1log.Fire("hello world")2log.Fire("hello world")3log.Fire("hello world")4log.Fire("hello world")5log.Fire("hello world")6log.Fire("hello world")7log.Fire("hello world")8log.Fire("hello world")9log.Fire("hello world")10log.Fire("hello world")11log.Fire("hello world")12log.Fire("hello world")13log.Fire("hello world")14log.Fire("hello world")15log.Fire("hello world")16log.Fire("hello world")17log.Fire("hello world")18log.Fire("hello world")19log.Fire("hello world")20log.Fire("hello world")21log.Fire("hello world")22log.Fire("hello world")23log.Fire("hello world")24log.Fire("hello world")25log.Fire("hello world")26log.Fire("hello world")

Fire

Using AI Code Generation

1log.Fire("error", "error message")2log.Fire("info", "info message")3log.Fire("warn", "warn message")4log.Fire("debug", "debug message")5log.Fire("trace", "trace message")6log.Fire("error", "error message")7log.Fire("info", "info message")8log.Fire("warn", "warn message")9log.Fire("debug", "debug message")10log.Fire("trace", "trace message")11log.Fire("error", "error message")12log.Fire("info", "info message")13log.Fire("warn", "warn message")14log.Fire("debug", "debug message")

Fire

Using AI Code Generation

1import (2func main() {3    log := logger.New()4    log.Fire("test")5}6import (7func main() {8    log := logger.New()9    log.Fire("test")10}11import (12func main() {13    log := logger.New()14    log.Fire("test")15}16import (17func main() {18    log := logger.New()19    log.Fire("test")20}21import (22func main() {23    log := logger.New()24    log.Fire("test")25}26import (27func main() {28    log := logger.New()29    log.Fire("test")30}31import (32func main() {33    log := logger.New()34    log.Fire("test")35}36import (37func main() {38    log := logger.New()39    log.Fire("test")40}41import (42func main() {43    log := logger.New()44    log.Fire("test")45}46import (47func main() {48    log := logger.New()

Fire

Using AI Code Generation

1import (2func main() {3log.SetFlags(log.Lshortfile)4log.Println("Hello World")5log.Fatalln("Hello World")6log.Panicln("Hello World")7}8log.Panicln(0xc42000a0e8, 0x1, 0x1)9main.main()10import (11const (12type Logger struct {13}14func NewLogger() *Logger {15    return &Logger{DEBUG}16}17func (l *Logger) SetLevel(level Level) {18}19func (l *Logger) Debug(v ...interface{}) {20    if l.Level > DEBUG {21    }22    l.Output(2, fmt.Sprint(v...))23}24func (l *Logger) Info(v ...interface{}) {25    if l.Level > INFO {26    }27    l.Output(2, fmt.Sprint(v...))28}

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