pkgerrors: quick refactoring for better readibility

.travis.yml

@@ -4,8 +4,6 @@ go:
 - "1.8"
 - "1.9"
 - "1.10"
-- "1.11"
-- "1.12"
 - "master"
 matrix:
   allow_failures:

README.md

@@ -53,7 +53,7 @@ func main() {
     // UNIX Time is faster and smaller than most timestamps
     // If you set zerolog.TimeFieldFormat to an empty string,
     // logs will write with UNIX time
-    zerolog.TimeFieldFormat = zerolog.TimeFormatUnix
+    zerolog.TimeFieldFormat = ""
 
     log.Print("hello world")
 }
@@ -76,20 +76,15 @@ import (
 )
 
 func main() {
-    zerolog.TimeFieldFormat = zerolog.TimeFormatUnix
+    zerolog.TimeFieldFormat = ""
 
     log.Debug().
         Str("Scale", "833 cents").
         Float64("Interval", 833.09).
         Msg("Fibonacci is everywhere")
-    
-    log.Debug().
-        Str("Name", "Tom").
-        Send()
 }
 
-// Output: {"level":"debug","Scale":"833 cents","Interval":833.09,"time":1562212768,"message":"Fibonacci is everywhere"}
-// Output: {"level":"debug","Name":"Tom","time":1562212768}
+// Output: {"time":1524104936,"level":"debug","Scale":"833 cents","Interval":833.09,"message":"Fibonacci is everywhere"}
 ```
 
 > You'll note in the above example that when adding contextual fields, the fields are strongly typed. You can find the full list of supported fields [here](#standard-types)
@@ -107,7 +102,7 @@ import (
 )
 
 func main() {
-    zerolog.TimeFieldFormat = zerolog.TimeFormatUnix
+    zerolog.TimeFieldFormat = ""
 
     log.Info().Msg("hello world")
 }
@@ -125,7 +120,6 @@ func main() {
 * warn (`zerolog.WarnLevel`, 2)
 * info (`zerolog.InfoLevel`, 1)
 * debug (`zerolog.DebugLevel`, 0)
-* trace (`zerolog.TraceLevel`, -1)
 
 You can set the Global logging level to any of these options using the `SetGlobalLevel` function in the zerolog package, passing in one of the given constants above, e.g. `zerolog.InfoLevel` would be the "info" level.  Whichever level is chosen, all logs with a level greater than or equal to that level will be written. To turn off logging entirely, pass the `zerolog.Disabled` constant.
 
@@ -144,7 +138,7 @@ import (
 )
 
 func main() {
-    zerolog.TimeFieldFormat = zerolog.TimeFormatUnix
+    zerolog.TimeFieldFormat = ""
     debug := flag.Bool("debug", false, "sets log level to debug")
 
     flag.Parse()
@@ -195,7 +189,7 @@ import (
 )
 
 func main() {
-    zerolog.TimeFieldFormat = zerolog.TimeFormatUnix
+    zerolog.TimeFieldFormat = ""
 
     log.Log().
         Str("foo", "bar").
@@ -221,7 +215,7 @@ func main() {
     err := errors.New("A repo man spends his life getting into tense situations")
     service := "myservice"
 
-    zerolog.TimeFieldFormat = zerolog.TimeFormatUnix
+    zerolog.TimeFieldFormat = ""
 
     log.Fatal().
         Err(err).
@@ -480,10 +474,12 @@ Some settings can be changed and will by applied to all loggers:
 * `zerolog.LevelFieldName`: Can be set to customize level field name.
 * `zerolog.MessageFieldName`: Can be set to customize message field name.
 * `zerolog.ErrorFieldName`: Can be set to customize `Err` field name.
-* `zerolog.TimeFieldFormat`: Can be set to customize `Time` field value formatting. If set with `zerolog.TimeFormatUnix`, `zerolog.TimeFormatUnixMs` or `zerolog.TimeFormatUnixMicro`, times are formated as UNIX timestamp.
-* `zerolog.DurationFieldUnit`: Can be set to customize the unit for time.Duration type fields added by `Dur` (default: `time.Millisecond`).
-* `zerolog.DurationFieldInteger`: If set to `true`, `Dur` fields are formatted as integers instead of floats (default: `false`). 
-* `zerolog.ErrorHandler`: Called whenever zerolog fails to write an event on its output. If not set, an error is printed on the stderr. This handler must be thread safe and non-blocking.
+* `zerolog.TimeFieldFormat`: Can be set to customize `Time` field value formatting. If set with an empty string, times are formated as UNIX timestamp.
+    // DurationFieldUnit defines the unit for time.Duration type fields added
+    // using the Dur method.
+* `DurationFieldUnit`: Sets the unit of the fields added by `Dur` (default: `time.Millisecond`).
+* `DurationFieldInteger`: If set to true, `Dur` fields are formatted as integers instead of floats.
+* `ErrorHandler`: Called whenever zerolog fails to write an event on its output. If not set, an error is printed on the stderr. This handler must be thread safe and non-blocking.
 
 ## Field Types
 
@@ -582,7 +578,7 @@ Log a static string, without any context or `printf`-style templating:
 
 ## Caveats
 
-Note that zerolog does no de-duplication of fields. Using the same key multiple times creates multiple keys in final JSON:
+Note that zerolog does de-duplication fields. Using the same key multiple times creates multiple keys in final JSON:
 
 ```go
 logger := zerolog.New(os.Stderr).With().Timestamp().Logger()
@@ -592,4 +588,4 @@ logger.Info().
 // Output: {"level":"info","time":1494567715,"time":1494567715,"message":"dup"}
 ```
 
-In this case, many consumers will take the last value, but this is not guaranteed; check yours if in doubt.
+However, it’s not a big deal as JSON accepts dup keys; the last one prevails.

array.go

@@ -85,12 +85,6 @@ func (a *Array) Hex(val []byte) *Array {
 	return a
 }
 
-// RawJSON adds already encoded JSON to the array.
-func (a *Array) RawJSON(val []byte) *Array {
-	a.buf = appendJSON(enc.AppendArrayDelim(a.buf), val)
-	return a
-}
-
 // Err serializes and appends the err to the array.
 func (a *Array) Err(err error) *Array {
 	marshaled := ErrorMarshalFunc(err)

array_test.go

@@ -24,11 +24,10 @@ func TestArray(t *testing.T) {
 		Str("a").
 		Bytes([]byte("b")).
 		Hex([]byte{0x1f}).
-		RawJSON([]byte(`{"some":"json"}`)).
 		Time(time.Time{}).
 		IPAddr(net.IP{192, 168, 0, 10}).
 		Dur(0)
-	want := `[true,1,2,3,4,5,6,7,8,9,10,11.98122,12.987654321,"a","b","1f",{"some":"json"},"0001-01-01T00:00:00Z","192.168.0.10",0]`
+	want := `[true,1,2,3,4,5,6,7,8,9,10,11.98122,12.987654321,"a","b","1f","0001-01-01T00:00:00Z","192.168.0.10",0]`
 	if got := decodeObjectToStr(a.write([]byte{})); got != want {
 		t.Errorf("Array.write()\ngot:  %s\nwant: %s", got, want)
 	}

benchmark_test.go

@@ -234,7 +234,7 @@ func BenchmarkLogFieldType(b *testing.B) {
 
 func BenchmarkContextFieldType(b *testing.B) {
 	oldFormat := TimeFieldFormat
-	TimeFieldFormat = TimeFormatUnix
+	TimeFieldFormat = ""
 	defer func() { TimeFieldFormat = oldFormat }()
 	bools := []bool{true, false, true, false, true, false, true, false, true, false}
 	ints := []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

binary_test.go

@@ -108,19 +108,6 @@ func ExampleLogger_Printf() {
 	// Output: {"level":"debug","message":"hello world"}
 }
 
-func ExampleLogger_Trace() {
-	dst := bytes.Buffer{}
-	log := New(&dst)
-
-	log.Trace().
-		Str("foo", "bar").
-		Int("n", 123).
-		Msg("hello world")
-
-	fmt.Println(decodeIfBinaryToString(dst.Bytes()))
-	// Output: {"level":"trace","foo":"bar","n":123,"message":"hello world"}
-}
-
 func ExampleLogger_Debug() {
 	dst := bytes.Buffer{}
 	log := New(&dst)

console.go

@@ -13,6 +13,11 @@ import (
 	"time"
 )
 
+const (
+	colorBold = iota + 1
+	colorFaint
+)
+
 const (
 	colorBlack = iota + 30
 	colorRed
@@ -22,9 +27,6 @@ const (
 	colorMagenta
 	colorCyan
 	colorWhite
-
-	colorBold     = 1
-	colorDarkGray = 90
 )
 
 var (
@@ -295,20 +297,9 @@ func consoleDefaultFormatTimestamp(timeFormat string, noColor bool) Formatter {
 				t = ts.Format(timeFormat)
 			}
 		case json.Number:
-			i, err := tt.Int64()
-			if err != nil {
-				t = tt.String()
-			} else {
-				var sec, nsec int64 = i, 0
-				if TimeFieldFormat == TimeFormatUnixMs {
-					nsec = int64(time.Duration(i) * time.Millisecond)
-					sec = 0
-				}
-				ts := time.Unix(sec, nsec).UTC()
-				t = ts.Format(timeFormat)
-			}
+			t = tt.String()
 		}
-		return colorize(t, colorDarkGray, noColor)
+		return colorize(t, colorFaint, noColor)
 	}
 }
 
@@ -317,8 +308,6 @@ func consoleDefaultFormatLevel(noColor bool) Formatter {
 		var l string
 		if ll, ok := i.(string); ok {
 			switch ll {
-			case "trace":
-				l = colorize("TRC", colorMagenta, noColor)
 			case "debug":
 				l = colorize("DBG", colorYellow, noColor)
 			case "info":
@@ -335,11 +324,7 @@ func consoleDefaultFormatLevel(noColor bool) Formatter {
 				l = colorize("???", colorBold, noColor)
 			}
 		} else {
-			if i == nil {
-				l = colorize("???", colorBold, noColor)
-			} else {
-				l = strings.ToUpper(fmt.Sprintf("%s", i))[0:3]
-			}
+			l = strings.ToUpper(fmt.Sprintf("%s", i))[0:3]
 		}
 		return l
 	}
@@ -357,22 +342,19 @@ func consoleDefaultFormatCaller(noColor bool) Formatter {
 				c = strings.TrimPrefix(c, cwd)
 				c = strings.TrimPrefix(c, "/")
 			}
-			c = colorize(c, colorBold, noColor) + colorize(" >", colorCyan, noColor)
+			c = colorize(c, colorBold, noColor) + colorize(" >", colorFaint, noColor)
 		}
 		return c
 	}
 }
 
 func consoleDefaultFormatMessage(i interface{}) string {
-	if i == nil {
-		return ""
-	}
 	return fmt.Sprintf("%s", i)
 }
 
 func consoleDefaultFormatFieldName(noColor bool) Formatter {
 	return func(i interface{}) string {
-		return colorize(fmt.Sprintf("%s=", i), colorCyan, noColor)
+		return colorize(fmt.Sprintf("%s=", i), colorFaint, noColor)
 	}
 }
 

console_test.go

@@ -76,7 +76,7 @@ func TestConsoleWriter(t *testing.T) {
 		buf := &bytes.Buffer{}
 		w := zerolog.ConsoleWriter{Out: buf, NoColor: true, PartsOrder: []string{"foo"}}
 
-		_, err := w.Write([]byte(`{"foo": "DEFAULT"}`))
+		_, err := w.Write([]byte(`{"foo" : "DEFAULT"}`))
 		if err != nil {
 			t.Errorf("Unexpected error when writing output: %s", err)
 		}
@@ -92,12 +92,12 @@ func TestConsoleWriter(t *testing.T) {
 		buf := &bytes.Buffer{}
 		w := zerolog.ConsoleWriter{Out: buf, NoColor: false}
 
-		_, err := w.Write([]byte(`{"level": "warn", "message": "Foobar"}`))
+		_, err := w.Write([]byte(`{"level" : "warn", "message" : "Foobar"}`))
 		if err != nil {
 			t.Errorf("Unexpected error when writing output: %s", err)
 		}
 
-		expectedOutput := "\x1b[90m<nil>\x1b[0m \x1b[31mWRN\x1b[0m Foobar\n"
+		expectedOutput := "\x1b[2m<nil>\x1b[0m \x1b[31mWRN\x1b[0m Foobar\n"
 		actualOutput := buf.String()
 		if actualOutput != expectedOutput {
 			t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
@@ -109,7 +109,7 @@ func TestConsoleWriter(t *testing.T) {
 		w := zerolog.ConsoleWriter{Out: buf, NoColor: true}
 
 		d := time.Unix(0, 0).UTC().Format(time.RFC3339)
-		_, err := w.Write([]byte(`{"time": "` + d + `", "level": "debug", "message": "Foobar", "foo": "bar"}`))
+		_, err := w.Write([]byte(`{"time" : "` + d + `", "level" : "debug", "message" : "Foobar", "foo" : "bar"}`))
 		if err != nil {
 			t.Errorf("Unexpected error when writing output: %s", err)
 		}
@@ -121,104 +121,12 @@ func TestConsoleWriter(t *testing.T) {
 		}
 	})
 
-	t.Run("Unix timestamp input format", func(t *testing.T) {
-		of := zerolog.TimeFieldFormat
-		defer func() {
-			zerolog.TimeFieldFormat = of
-		}()
-		zerolog.TimeFieldFormat = zerolog.TimeFormatUnix
-
-		buf := &bytes.Buffer{}
-		w := zerolog.ConsoleWriter{Out: buf, TimeFormat: time.StampMilli, NoColor: true}
-
-		_, err := w.Write([]byte(`{"time": 1234, "level": "debug", "message": "Foobar", "foo": "bar"}`))
-		if err != nil {
-			t.Errorf("Unexpected error when writing output: %s", err)
-		}
-
-		expectedOutput := "Jan  1 00:20:34.000 DBG Foobar foo=bar\n"
-		actualOutput := buf.String()
-		if actualOutput != expectedOutput {
-			t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
-		}
-	})
-
-	t.Run("Unix timestamp ms input format", func(t *testing.T) {
-		of := zerolog.TimeFieldFormat
-		defer func() {
-			zerolog.TimeFieldFormat = of
-		}()
-		zerolog.TimeFieldFormat = zerolog.TimeFormatUnixMs
-
-		buf := &bytes.Buffer{}
-		w := zerolog.ConsoleWriter{Out: buf, TimeFormat: time.StampMilli, NoColor: true}
-
-		_, err := w.Write([]byte(`{"time": 1234567, "level": "debug", "message": "Foobar", "foo": "bar"}`))
-		if err != nil {
-			t.Errorf("Unexpected error when writing output: %s", err)
-		}
-
-		expectedOutput := "Jan  1 00:20:34.567 DBG Foobar foo=bar\n"
-		actualOutput := buf.String()
-		if actualOutput != expectedOutput {
-			t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
-		}
-	})
-
-	t.Run("No message field", func(t *testing.T) {
-		buf := &bytes.Buffer{}
-		w := zerolog.ConsoleWriter{Out: buf, NoColor: true}
-
-		_, err := w.Write([]byte(`{"level": "debug", "foo": "bar"}`))
-		if err != nil {
-			t.Errorf("Unexpected error when writing output: %s", err)
-		}
-
-		expectedOutput := "<nil> DBG  foo=bar\n"
-		actualOutput := buf.String()
-		if actualOutput != expectedOutput {
-			t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
-		}
-	})
-
-	t.Run("No level field", func(t *testing.T) {
-		buf := &bytes.Buffer{}
-		w := zerolog.ConsoleWriter{Out: buf, NoColor: true}
-
-		_, err := w.Write([]byte(`{"message": "Foobar", "foo": "bar"}`))
-		if err != nil {
-			t.Errorf("Unexpected error when writing output: %s", err)
-		}
-
-		expectedOutput := "<nil> ??? Foobar foo=bar\n"
-		actualOutput := buf.String()
-		if actualOutput != expectedOutput {
-			t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
-		}
-	})
-
-	t.Run("Write colorized fields", func(t *testing.T) {
-		buf := &bytes.Buffer{}
-		w := zerolog.ConsoleWriter{Out: buf, NoColor: false}
-
-		_, err := w.Write([]byte(`{"level": "warn", "message": "Foobar", "foo": "bar"}`))
-		if err != nil {
-			t.Errorf("Unexpected error when writing output: %s", err)
-		}
-
-		expectedOutput := "\x1b[90m<nil>\x1b[0m \x1b[31mWRN\x1b[0m Foobar \x1b[36mfoo=\x1b[0mbar\n"
-		actualOutput := buf.String()
-		if actualOutput != expectedOutput {
-			t.Errorf("Unexpected output %q, want: %q", actualOutput, expectedOutput)
-		}
-	})
-
 	t.Run("Write error field", func(t *testing.T) {
 		buf := &bytes.Buffer{}
 		w := zerolog.ConsoleWriter{Out: buf, NoColor: true}
 
 		d := time.Unix(0, 0).UTC().Format(time.RFC3339)
-		evt := `{"time": "` + d + `", "level": "error", "message": "Foobar", "aaa": "bbb", "error": "Error"}`
+		evt := `{"time" : "` + d + `", "level" : "error", "message" : "Foobar", "aaa" : "bbb", "error" : "Error"}`
 		// t.Log(evt)
 
 		_, err := w.Write([]byte(evt))
@@ -243,7 +151,7 @@ func TestConsoleWriter(t *testing.T) {
 		}
 
 		d := time.Unix(0, 0).UTC().Format(time.RFC3339)
-		evt := `{"time": "` + d + `", "level": "debug", "message": "Foobar", "foo": "bar", "caller": "` + cwd + `/foo/bar.go"}`
+		evt := `{"time" : "` + d + `", "level" : "debug", "message" : "Foobar", "foo" : "bar", "caller" : "` + cwd + `/foo/bar.go"}`
 		// t.Log(evt)
 
 		_, err = w.Write([]byte(evt))
@@ -262,7 +170,7 @@ func TestConsoleWriter(t *testing.T) {
 		buf := &bytes.Buffer{}
 		w := zerolog.ConsoleWriter{Out: buf, NoColor: true}
 
-		evt := `{"level": "debug", "message": "Foobar", "foo": [1, 2, 3], "bar": true}`
+		evt := `{"level" : "debug", "message" : "Foobar", "foo" : [1, 2, 3], "bar" : true}`
 		// t.Log(evt)
 
 		_, err := w.Write([]byte(evt))
@@ -284,7 +192,7 @@ func TestConsoleWriterConfiguration(t *testing.T) {
 		w := zerolog.ConsoleWriter{Out: buf, NoColor: true, TimeFormat: time.RFC3339}
 
 		d := time.Unix(0, 0).UTC().Format(time.RFC3339)
-		evt := `{"time": "` + d + `", "level": "info", "message": "Foobar"}`
+		evt := `{"time" : "` + d + `", "level" : "info", "message" : "Foobar"}`
 
 		_, err := w.Write([]byte(evt))
 		if err != nil {
@@ -302,7 +210,7 @@ func TestConsoleWriterConfiguration(t *testing.T) {
 		buf := &bytes.Buffer{}
 		w := zerolog.ConsoleWriter{Out: buf, NoColor: true, PartsOrder: []string{"message", "level"}}
 
-		evt := `{"level": "info", "message": "Foobar"}`
+		evt := `{"level" : "info", "message" : "Foobar"}`
 		_, err := w.Write([]byte(evt))
 		if err != nil {
 			t.Errorf("Unexpected error when writing output: %s", err)
@@ -320,7 +228,7 @@ func BenchmarkConsoleWriter(b *testing.B) {
 	b.ResetTimer()
 	b.ReportAllocs()
 
-	var msg = []byte(`{"level": "info", "foo": "bar", "message": "HELLO", "time": "1990-01-01"}`)
+	var msg = []byte(`{"level" : "info", "foo" : "bar", "message" : "HELLO", "time" : "1990-01-01"}`)
 
 	w := zerolog.ConsoleWriter{Out: ioutil.Discard, NoColor: false}
 

context.go

@@ -2,7 +2,6 @@ package zerolog
 
 import (
 	"io/ioutil"
-	"math"
 	"net"
 	"time"
 )
@@ -348,31 +347,14 @@ func (c Context) Interface(key string, i interface{}) Context {
 	return c
 }
 
-type callerHook struct {
-	callerSkipFrameCount int
-}
-
-func newCallerHook(skipFrameCount int) callerHook {
-	return callerHook{callerSkipFrameCount: skipFrameCount}
-}
+type callerHook struct{}
 
 func (ch callerHook) Run(e *Event, level Level, msg string) {
-	switch ch.callerSkipFrameCount {
-	case useGlobalSkipFrameCount:
-		// Extra frames to skip (added by hook infra).
-		e.caller(CallerSkipFrameCount + contextCallerSkipFrameCount)
-	default:
-		// Extra frames to skip (added by hook infra).
-		e.caller(ch.callerSkipFrameCount + contextCallerSkipFrameCount)
-	}
+	// Three extra frames to skip (added by hook infra).
+	e.caller(CallerSkipFrameCount + 3)
 }
 
-// useGlobalSkipFrameCount acts as a flag to informat callerHook.Run
-// to use the global CallerSkipFrameCount.
-const useGlobalSkipFrameCount = math.MinInt32
-
-// ch is the default caller hook using the global CallerSkipFrameCount.
-var ch = newCallerHook(useGlobalSkipFrameCount)
+var ch = callerHook{}
 
 // Caller adds the file:line of the caller with the zerolog.CallerFieldName key.
 func (c Context) Caller() Context {
@@ -380,14 +362,6 @@ func (c Context) Caller() Context {
 	return c
 }
 
-// CallerWithSkipFrameCount adds the file:line of the caller with the zerolog.CallerFieldName key.
-// The specified skipFrameCount int will override the global CallerSkipFrameCount for this context's respective logger.
-// If set to -1 the global CallerSkipFrameCount will be used.
-func (c Context) CallerWithSkipFrameCount(skipFrameCount int) Context {
-	c.l = c.l.Hook(newCallerHook(skipFrameCount))
-	return c
-}
-
 type stackTraceHook struct{}
 
 func (sh stackTraceHook) Run(e *Event, level Level, msg string) {

ctx.go

@@ -7,7 +7,6 @@ import (
 var disabledLogger *Logger
 
 func init() {
-	SetGlobalLevel(TraceLevel)
 	l := Nop()
 	disabledLogger = &l
 }

event.go

@@ -5,6 +5,7 @@ import (
 	"net"
 	"os"
 	"runtime"
+	"strconv"
 	"sync"
 	"time"
 )
@@ -105,20 +106,10 @@ func (e *Event) Msg(msg string) {
 	e.msg(msg)
 }
 
-// Send is equivalent to calling Msg("").
+// Msgf sends the event with formated msg added as the message field if not empty.
 //
-// NOTICE: once this method is called, the *Event should be disposed.
-func (e *Event) Send() {
-	if e == nil {
-		return
-	}
-	e.msg("")
-}
-
-// Msgf sends the event with formatted msg added as the message field if not empty.
-//
-// NOTICE: once this method is called, the *Event should be disposed.
-// Calling Msgf twice can have unexpected result.
+// NOTICE: once this methid is called, the *Event should be disposed.
+// Calling Msg twice can have unexpected result.
 func (e *Event) Msgf(format string, v ...interface{}) {
 	if e == nil {
 		return
@@ -127,8 +118,13 @@ func (e *Event) Msgf(format string, v ...interface{}) {
 }
 
 func (e *Event) msg(msg string) {
-	for _, hook := range e.ch {
-		hook.Run(e, e.level, msg)
+	if len(e.ch) > 0 {
+		e.ch[0].Run(e, e.level, msg)
+		if len(e.ch) > 1 {
+			for _, hook := range e.ch[1:] {
+				hook.Run(e, e.level, msg)
+			}
+		}
 	}
 	if msg != "" {
 		e.buf = enc.AppendString(enc.AppendKey(e.buf, MessageFieldName), msg)
@@ -208,7 +204,7 @@ func (e *Event) Object(key string, obj LogObjectMarshaler) *Event {
 	return e
 }
 
-// EmbedObject marshals an object that implement the LogObjectMarshaler interface.
+// Object marshals an object that implement the LogObjectMarshaler interface.
 func (e *Event) EmbedObject(obj LogObjectMarshaler) *Event {
 	if e == nil {
 		return e
@@ -665,14 +661,8 @@ func (e *Event) Interface(key string, i interface{}) *Event {
 }
 
 // Caller adds the file:line of the caller with the zerolog.CallerFieldName key.
-// The argument skip is the number of stack frames to ascend
-// Skip If not passed, use the global variable CallerSkipFrameCount
-func (e *Event) Caller(skip ...int) *Event {
-	sk := CallerSkipFrameCount
-	if len(skip) > 0 {
-		sk = skip[0] + CallerSkipFrameCount
-	}
-	return e.caller(sk)
+func (e *Event) Caller() *Event {
+	return e.caller(CallerSkipFrameCount)
 }
 
 func (e *Event) caller(skip int) *Event {
@@ -683,7 +673,7 @@ func (e *Event) caller(skip int) *Event {
 	if !ok {
 		return e
 	}
-	e.buf = enc.AppendString(enc.AppendKey(e.buf, CallerFieldName), CallerMarshalFunc(file, line))
+	e.buf = enc.AppendString(enc.AppendKey(e.buf, CallerFieldName), file+":"+strconv.Itoa(line))
 	return e
 }
 

globals.go

@@ -1,24 +1,7 @@
 package zerolog
 
-import (
-	"strconv"
-	"sync/atomic"
-	"time"
-)
-
-const (
-	// TimeFormatUnix defines a time format that makes time fields to be
-	// serialized as Unix timestamp integers.
-	TimeFormatUnix = ""
-
-	// TimeFormatUnixMs defines a time format that makes time fields to be
-	// serialized as Unix timestamp integers in milliseconds.
-	TimeFormatUnixMs = "UNIXMS"
-
-	// TimeFormatUnixMicro defines a time format that makes time fields to be
-	// serialized as Unix timestamp integers in microseconds.
-	TimeFormatUnixMicro = "UNIXMICRO"
-)
+import "time"
+import "sync/atomic"
 
 var (
 	// TimestampFieldName is the field name used for the timestamp field.
@@ -27,11 +10,6 @@ var (
 	// LevelFieldName is the field name used for the level field.
 	LevelFieldName = "level"
 
-	// LevelFieldMarshalFunc allows customization of global level field marshaling
-	LevelFieldMarshalFunc = func(l Level) string {
-		return l.String()
-	}
-
 	// MessageFieldName is the field name used for the message field.
 	MessageFieldName = "message"
 
@@ -44,11 +22,6 @@ var (
 	// CallerSkipFrameCount is the number of stack frames to skip to find the caller.
 	CallerSkipFrameCount = 2
 
-	// CallerMarshalFunc allows customization of global caller marshaling
-	CallerMarshalFunc = func(file string, line int) string {
-		return file + ":" + strconv.Itoa(line)
-	}
-
 	// ErrorStackFieldName is the field name used for error stacks.
 	ErrorStackFieldName = "stack"
 
@@ -60,9 +33,9 @@ var (
 		return err
 	}
 
-	// TimeFieldFormat defines the time format of the Time field type. If set to
-	// TimeFormatUnix, TimeFormatUnixMs or TimeFormatUnixMicro, the time is formatted as an UNIX
-	// timestamp as integer.
+	// TimeFieldFormat defines the time format of the Time field type.
+	// If set to an empty string, the time is formatted as an UNIX timestamp
+	// as integer.
 	TimeFieldFormat = time.RFC3339
 
 	// TimestampFunc defines the function called to generate a timestamp.
@@ -83,8 +56,8 @@ var (
 )
 
 var (
-	gLevel          = new(int32)
-	disableSampling = new(int32)
+	gLevel          = new(uint32)
+	disableSampling = new(uint32)
 )
 
 // SetGlobalLevel sets the global override for log level. If this
@@ -92,23 +65,23 @@ var (
 //
 // To globally disable logs, set GlobalLevel to Disabled.
 func SetGlobalLevel(l Level) {
-	atomic.StoreInt32(gLevel, int32(l))
+	atomic.StoreUint32(gLevel, uint32(l))
 }
 
 // GlobalLevel returns the current global log level
 func GlobalLevel() Level {
-	return Level(atomic.LoadInt32(gLevel))
+	return Level(atomic.LoadUint32(gLevel))
 }
 
 // DisableSampling will disable sampling in all Loggers if true.
 func DisableSampling(v bool) {
-	var i int32
+	var i uint32
 	if v {
 		i = 1
 	}
-	atomic.StoreInt32(disableSampling, i)
+	atomic.StoreUint32(disableSampling, i)
 }
 
 func samplingDisabled() bool {
-	return atomic.LoadInt32(disableSampling) == 1
+	return atomic.LoadUint32(disableSampling) == 1
 }

go.mod

@@ -1,9 +1 @@
 module github.com/rs/zerolog
-
-require (
-	github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e
-	github.com/pkg/errors v0.8.1
-	github.com/rs/xid v1.2.1
-	github.com/zenazn/goji v0.9.0
-	golang.org/x/tools v0.0.0-20190828213141-aed303cbaa74
-)

go.sum

@@ -1,16 +0,0 @@
-github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e h1:Wf6HqHfScWJN9/ZjdUKyjop4mf3Qdd+1TvvltAvM3m8=
-github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
-github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
-github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/rs/xid v1.2.1 h1:mhH9Nq+C1fY2l1XIpgxIiUOfNpRBYH1kKcr+qfKgjRc=
-github.com/rs/xid v1.2.1/go.mod h1:+uKXf+4Djp6Md1KODXJxgGQPKngRmWyn10oCKFzNHOQ=
-github.com/zenazn/goji v0.9.0 h1:RSQQAbXGArQ0dIDEq+PI6WqN6if+5KHu6x2Cx/GXLTQ=
-github.com/zenazn/goji v0.9.0/go.mod h1:7S9M489iMyHBNxwZnk9/EHS098H4/F6TATF2mIxtB1Q=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/tools v0.0.0-20190828213141-aed303cbaa74 h1:4cFkmztxtMslUX2SctSl+blCyXfpzhGOy9LhKAqSMA4=
-golang.org/x/tools v0.0.0-20190828213141-aed303cbaa74/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

go112.go

@@ -1,7 +0,0 @@
-// +build go1.12
-
-package zerolog
-
-// Since go 1.12, some auto generated init functions are hidden from
-// runtime.Caller.
-const contextCallerSkipFrameCount = 2

hlog/hlog.go

@@ -171,22 +171,6 @@ func RequestIDHandler(fieldKey, headerName string) func(next http.Handler) http.
 	}
 }
 
-// CustomHeaderHandler adds given header from request's header as a field to
-// the context's logger using fieldKey as field key.
-func CustomHeaderHandler(fieldKey, header string) func(next http.Handler) http.Handler {
-	return func(next http.Handler) http.Handler {
-		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			if val := r.Header.Get(header); val != "" {
-				log := zerolog.Ctx(r.Context())
-				log.UpdateContext(func(c zerolog.Context) zerolog.Context {
-					return c.Str(fieldKey, val)
-				})
-			}
-			next.ServeHTTP(w, r)
-		})
-	}
-}
-
 // AccessHandler returns a handler that call f after each request.
 func AccessHandler(f func(r *http.Request, status, size int, duration time.Duration)) func(next http.Handler) http.Handler {
 	return func(next http.Handler) http.Handler {

hlog/hlog_test.go

@@ -182,24 +182,6 @@ func TestRequestIDHandler(t *testing.T) {
 	h.ServeHTTP(httptest.NewRecorder(), r)
 }
 
-func TestCustomHeaderHandler(t *testing.T) {
-	out := &bytes.Buffer{}
-	r := &http.Request{
-		Header: http.Header{
-			"X-Request-Id": []string{"514bbe5bb5251c92bd07a9846f4a1ab6"},
-		},
-	}
-	h := CustomHeaderHandler("reqID", "X-Request-Id")(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		l := FromRequest(r)
-		l.Log().Msg("")
-	}))
-	h = NewHandler(zerolog.New(out))(h)
-	h.ServeHTTP(nil, r)
-	if want, got := `{"reqID":"514bbe5bb5251c92bd07a9846f4a1ab6"}`+"\n", decodeIfBinary(out); want != got {
-		t.Errorf("Invalid log output, got: %s, want: %s", got, want)
-	}
-}
-
 func TestCombinedHandlers(t *testing.T) {
 	out := &bytes.Buffer{}
 	r := &http.Request{

hook.go

@@ -17,16 +17,12 @@ func (h HookFunc) Run(e *Event, level Level, message string) {
 
 // LevelHook applies a different hook for each level.
 type LevelHook struct {
-	NoLevelHook, TraceHook, DebugHook, InfoHook, WarnHook, ErrorHook, FatalHook, PanicHook Hook
+	NoLevelHook, DebugHook, InfoHook, WarnHook, ErrorHook, FatalHook, PanicHook Hook
 }
 
 // Run implements the Hook interface.
 func (h LevelHook) Run(e *Event, level Level, message string) {
 	switch level {
-	case TraceLevel:
-		if h.TraceHook != nil {
-			h.TraceHook.Run(e, level, message)
-		}
 	case DebugLevel:
 		if h.DebugHook != nil {
 			h.DebugHook.Run(e, level, message)

internal/cbor/types.go

@@ -24,9 +24,9 @@ func (Encoder) AppendEndMarker(dst []byte) []byte {
 
 // AppendObjectData takes an object in form of a byte array and appends to dst.
 func (Encoder) AppendObjectData(dst []byte, o []byte) []byte {
-	// BeginMarker is present in the dst, which
-	// should not be copied when appending to existing data.
-	return append(dst, o[1:]...)
+        // BeginMarker is present in the dst, which
+        // should not be copied when appending to existing data.
+        return append(dst, o[1:]...)
 }
 
 // AppendArrayStart adds markers to indicate the start of an array.

internal/json/time.go

@@ -5,23 +5,11 @@ import (
 	"time"
 )
 
-const (
-	// Import from zerolog/global.go
-	timeFormatUnix   = ""
-	timeFormatUnixMs = "UNIXMS"
-	timeFormatUnixMicro = "UNIXMICRO"
-)
-
 // AppendTime formats the input time with the given format
 // and appends the encoded string to the input byte slice.
 func (e Encoder) AppendTime(dst []byte, t time.Time, format string) []byte {
-	switch format {
-	case timeFormatUnix:
+	if format == "" {
 		return e.AppendInt64(dst, t.Unix())
-	case timeFormatUnixMs:
-		return e.AppendInt64(dst, t.UnixNano()/1000000)
-	case timeFormatUnixMicro:
-		return e.AppendInt64(dst, t.UnixNano()/1000)
 	}
 	return append(t.AppendFormat(append(dst, '"'), format), '"')
 }
@@ -29,11 +17,8 @@ func (e Encoder) AppendTime(dst []byte, t time.Time, format string) []byte {
 // AppendTimes converts the input times with the given format
 // and appends the encoded string list to the input byte slice.
 func (Encoder) AppendTimes(dst []byte, vals []time.Time, format string) []byte {
-	switch format {
-	case timeFormatUnix:
+	if format == "" {
 		return appendUnixTimes(dst, vals)
-	case timeFormatUnixMs:
-		return appendUnixMsTimes(dst, vals)
 	}
 	if len(vals) == 0 {
 		return append(dst, '[', ']')
@@ -64,21 +49,6 @@ func appendUnixTimes(dst []byte, vals []time.Time) []byte {
 	return dst
 }
 
-func appendUnixMsTimes(dst []byte, vals []time.Time) []byte {
-	if len(vals) == 0 {
-		return append(dst, '[', ']')
-	}
-	dst = append(dst, '[')
-	dst = strconv.AppendInt(dst, vals[0].UnixNano()/1000000, 10)
-	if len(vals) > 1 {
-		for _, t := range vals[1:] {
-			dst = strconv.AppendInt(append(dst, ','), t.UnixNano()/1000000, 10)
-		}
-	}
-	dst = append(dst, ']')
-	return dst
-}
-
 // AppendDuration formats the input duration with the given unit & format
 // and appends the encoded string to the input byte slice.
 func (e Encoder) AppendDuration(dst []byte, d time.Duration, unit time.Duration, useInt bool) []byte {

internal/json/types.go

@@ -373,17 +373,12 @@ func (e Encoder) AppendInterface(dst []byte, i interface{}) []byte {
 // AppendObjectData takes in an object that is already in a byte array
 // and adds it to the dst.
 func (Encoder) AppendObjectData(dst []byte, o []byte) []byte {
-	// Three conditions apply here:
-	// 1. new content starts with '{' - which should be dropped   OR
-	// 2. new content starts with '{' - which should be replaced with ','
-	//    to separate with existing content OR
-	// 3. existing content has already other fields
+	// Two conditions we want to put a ',' between existing content and
+	// new content:
+	// 1. new content starts with '{' - which shd be dropped   OR
+	// 2. existing content has already other fields
 	if o[0] == '{' {
-		if len(dst) == 0 {
-			o = o[1:]
-		} else {
-			o[0] = ','
-		}
+		o[0] = ','
 	} else if len(dst) > 1 {
 		dst = append(dst, ',')
 	}

internal/json/types_test.go

@@ -165,23 +165,3 @@ func Test_appendMac(t *testing.T) {
 		})
 	}
 }
-
-func Test_appendObjectData(t *testing.T) {
-	tests := []struct {
-		dst  []byte
-		obj  []byte
-		want []byte
-	}{
-		{[]byte{}, []byte(`{"foo":"bar"}`), []byte(`"foo":"bar"}`)},
-		{[]byte(`{"qux":"quz"`), []byte(`{"foo":"bar"}`), []byte(`{"qux":"quz","foo":"bar"}`)},
-		{[]byte{}, []byte(`"foo":"bar"`), []byte(`"foo":"bar"`)},
-		{[]byte(`{"qux":"quz"`), []byte(`"foo":"bar"`), []byte(`{"qux":"quz","foo":"bar"`)},
-	}
-	for _, tt := range tests {
-		t.Run("ObjectData", func(t *testing.T) {
-			if got := enc.AppendObjectData(tt.dst, tt.obj); !reflect.DeepEqual(got, tt.want) {
-				t.Errorf("appendObjectData() = %s, want %s", got, tt.want)
-			}
-		})
-	}
-}

journald/journald.go

@@ -20,12 +20,11 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"io"
-	"strings"
-
 	"github.com/coreos/go-systemd/journal"
 	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/internal/cbor"
+	"io"
+	"strings"
 )
 
 const defaultJournalDPrio = journal.PriNotice
@@ -48,8 +47,6 @@ func levelToJPrio(zLevel string) journal.Priority {
 	lvl, _ := zerolog.ParseLevel(zLevel)
 
 	switch lvl {
-	case zerolog.TraceLevel:
-		return journal.PriDebug
 	case zerolog.DebugLevel:
 		return journal.PriDebug
 	case zerolog.InfoLevel:
@@ -70,7 +67,7 @@ func levelToJPrio(zLevel string) journal.Priority {
 
 func (w journalWriter) Write(p []byte) (n int, err error) {
 	if !journal.Enabled() {
-		err = fmt.Errorf("cannot connect to journalD")
+		err = fmt.Errorf("Cannot connect to journalD!!")
 		return
 	}
 	var event map[string]interface{}

log.go

@@ -94,8 +94,8 @@
 //            Msg("dup")
 //     // Output: {"level":"info","time":1494567715,"time":1494567715,"message":"dup"}
 //
-// In this case, many consumers will take the last value,
-// but this is not guaranteed; check yours if in doubt.
+// However, it’s not a big deal though as JSON accepts dup keys,
+// the last one prevails.
 package zerolog
 
 import (
@@ -107,7 +107,7 @@ import (
 )
 
 // Level defines log levels.
-type Level int8
+type Level uint8
 
 const (
 	// DebugLevel defines debug log level.
@@ -126,15 +126,10 @@ const (
 	NoLevel
 	// Disabled disables the logger.
 	Disabled
-
-	// TraceLevel defines trace log level.
-	TraceLevel Level = -1
 )
 
 func (l Level) String() string {
 	switch l {
-	case TraceLevel:
-		return "trace"
 	case DebugLevel:
 		return "debug"
 	case InfoLevel:
@@ -157,21 +152,19 @@ func (l Level) String() string {
 // returns an error if the input string does not match known values.
 func ParseLevel(levelStr string) (Level, error) {
 	switch levelStr {
-	case LevelFieldMarshalFunc(TraceLevel):
-		return TraceLevel, nil
-	case LevelFieldMarshalFunc(DebugLevel):
+	case DebugLevel.String():
 		return DebugLevel, nil
-	case LevelFieldMarshalFunc(InfoLevel):
+	case InfoLevel.String():
 		return InfoLevel, nil
-	case LevelFieldMarshalFunc(WarnLevel):
+	case WarnLevel.String():
 		return WarnLevel, nil
-	case LevelFieldMarshalFunc(ErrorLevel):
+	case ErrorLevel.String():
 		return ErrorLevel, nil
-	case LevelFieldMarshalFunc(FatalLevel):
+	case FatalLevel.String():
 		return FatalLevel, nil
-	case LevelFieldMarshalFunc(PanicLevel):
+	case PanicLevel.String():
 		return PanicLevel, nil
-	case LevelFieldMarshalFunc(NoLevel):
+	case NoLevel.String():
 		return NoLevel, nil
 	}
 	return NoLevel, fmt.Errorf("Unknown Level String: '%s', defaulting to NoLevel", levelStr)
@@ -205,7 +198,7 @@ func New(w io.Writer) Logger {
 	if !ok {
 		lw = levelWriterAdapter{w}
 	}
-	return Logger{w: lw, level: TraceLevel}
+	return Logger{w: lw}
 }
 
 // Nop returns a disabled logger for which all operation are no-op.
@@ -258,11 +251,6 @@ func (l Logger) Level(lvl Level) Logger {
 	return l
 }
 
-// GetLevel returns the current Level of l.
-func (l Logger) GetLevel() Level {
-	return l.level
-}
-
 // Sample returns a logger with the s sampler.
 func (l Logger) Sample(s Sampler) Logger {
 	l.sampler = s
@@ -275,13 +263,6 @@ func (l Logger) Hook(h Hook) Logger {
 	return l
 }
 
-// Trace starts a new message with trace level.
-//
-// You must call Msg on the returned event in order to send the event.
-func (l *Logger) Trace() *Event {
-	return l.newEvent(TraceLevel, nil)
-}
-
 // Debug starts a new message with debug level.
 //
 // You must call Msg on the returned event in order to send the event.
@@ -310,18 +291,6 @@ func (l *Logger) Error() *Event {
 	return l.newEvent(ErrorLevel, nil)
 }
 
-// Err starts a new message with error level with err as a field if not nil or
-// with info level if err is nil.
-//
-// You must call Msg on the returned event in order to send the event.
-func (l *Logger) Err(err error) *Event {
-	if err != nil {
-		return l.Error().Err(err)
-	}
-
-	return l.Info()
-}
-
 // Fatal starts a new message with fatal level. The os.Exit(1) function
 // is called by the Msg method, which terminates the program immediately.
 //
@@ -345,8 +314,6 @@ func (l *Logger) Panic() *Event {
 // You must call Msg on the returned event in order to send the event.
 func (l *Logger) WithLevel(level Level) *Event {
 	switch level {
-	case TraceLevel:
-		return l.Trace()
 	case DebugLevel:
 		return l.Debug()
 	case InfoLevel:
@@ -413,7 +380,7 @@ func (l *Logger) newEvent(level Level, done func(string)) *Event {
 	e.done = done
 	e.ch = l.hooks
 	if level != NoLevel {
-		e.Str(LevelFieldName, LevelFieldMarshalFunc(level))
+		e.Str(LevelFieldName, level.String())
 	}
 	if l.context != nil && len(l.context) > 0 {
 		e.buf = enc.AppendObjectData(e.buf, l.context)

log/log.go

@@ -37,21 +37,6 @@ func Hook(h zerolog.Hook) zerolog.Logger {
 	return Logger.Hook(h)
 }
 
-// Err starts a new message with error level with err as a field if not nil or
-// with info level if err is nil.
-//
-// You must call Msg on the returned event in order to send the event.
-func Err(err error) *zerolog.Event {
-	return Logger.Err(err)
-}
-
-// Trace starts a new message with trace level.
-//
-// You must call Msg on the returned event in order to send the event.
-func Trace() *zerolog.Event {
-	return Logger.Trace()
-}
-
 // Debug starts a new message with debug level.
 //
 // You must call Msg on the returned event in order to send the event.

log/log_example_test.go

@@ -54,25 +54,6 @@ func ExampleLog() {
 	// Output: {"time":1199811905,"message":"hello world"}
 }
 
-// Example of a conditional level based on the presence of an error.
-func ExampleErr() {
-	setup()
-	err := errors.New("some error")
-	log.Err(err).Msg("hello world")
-	log.Err(nil).Msg("hello world")
-
-	// Output: {"level":"error","error":"some error","time":1199811905,"message":"hello world"}
-	// {"level":"info","time":1199811905,"message":"hello world"}
-}
-
-// Example of a log at a particular "level" (in this case, "trace")
-func ExampleTrace() {
-	setup()
-	log.Trace().Msg("hello world")
-
-	// Output: {"level":"trace","time":1199811905,"message":"hello world"}
-}
-
 // Example of a log at a particular "level" (in this case, "debug")
 func ExampleDebug() {
 	setup()

log_example_test.go

@@ -95,17 +95,6 @@ func ExampleLogger_Printf() {
 	// Output: {"level":"debug","message":"hello world"}
 }
 
-func ExampleLogger_Trace() {
-	log := zerolog.New(os.Stdout)
-
-	log.Trace().
-		Str("foo", "bar").
-		Int("n", 123).
-		Msg("hello world")
-
-	// Output: {"level":"trace","foo":"bar","n":123,"message":"hello world"}
-}
-
 func ExampleLogger_Debug() {
 	log := zerolog.New(os.Stdout)
 

log_test.go

@@ -7,8 +7,6 @@ import (
 	"net"
 	"reflect"
 	"runtime"
-	"strconv"
-	"strings"
 	"testing"
 	"time"
 )
@@ -107,20 +105,6 @@ func TestWith(t *testing.T) {
 	if got, want := decodeIfBinaryToString(out.Bytes()), `{"string":"foo","bytes":"bar","hex":"12ef","json":{"some":"json"},"error":"some error","bool":true,"int":1,"int8":2,"int16":3,"int32":4,"int64":5,"uint":6,"uint8":7,"uint16":8,"uint32":9,"uint64":10,"float32":11.101,"float64":12.30303,"time":"0001-01-01T00:00:00Z","caller":"`+caller+`"}`+"\n"; got != want {
 		t.Errorf("invalid log output:\ngot:  %v\nwant: %v", got, want)
 	}
-
-	// Validate CallerWithSkipFrameCount.
-	out.Reset()
-	_, file, line, _ = runtime.Caller(0)
-	caller = fmt.Sprintf("%s:%d", file, line+5)
-	log = ctx.CallerWithSkipFrameCount(3).Logger()
-	func() {
-		log.Log().Msg("")
-	}()
-	// The above line is a little contrived, but the line above should be the line due
-	// to the extra frame skip.
-	if got, want := decodeIfBinaryToString(out.Bytes()), `{"string":"foo","bytes":"bar","hex":"12ef","json":{"some":"json"},"error":"some error","bool":true,"int":1,"int8":2,"int16":3,"int32":4,"int64":5,"uint":6,"uint8":7,"uint16":8,"uint32":9,"uint64":10,"float32":11.101,"float64":12.30303,"time":"0001-01-01T00:00:00Z","caller":"`+caller+`"}`+"\n"; got != want {
-		t.Errorf("invalid log output:\ngot:  %v\nwant: %v", got, want)
-	}
 }
 
 func TestFieldsMap(t *testing.T) {
@@ -453,24 +437,6 @@ func TestLevel(t *testing.T) {
 	})
 }
 
-func TestGetLevel(t *testing.T) {
-	levels := []Level{
-		DebugLevel,
-		InfoLevel,
-		WarnLevel,
-		ErrorLevel,
-		FatalLevel,
-		PanicLevel,
-		NoLevel,
-		Disabled,
-	}
-	for _, level := range levels {
-		if got, want := New(nil).Level(level).GetLevel(), level; got != want {
-			t.Errorf("GetLevel() = %v, want: %v", got, want)
-		}
-	}
-}
-
 func TestSampling(t *testing.T) {
 	out := &bytes.Buffer{}
 	log := New(out).Sample(&BasicSampler{N: 2})
@@ -526,34 +492,30 @@ func TestLevelWriter(t *testing.T) {
 		}{},
 	}
 	log := New(lw)
-	log.Trace().Msg("0")
 	log.Debug().Msg("1")
 	log.Info().Msg("2")
 	log.Warn().Msg("3")
 	log.Error().Msg("4")
 	log.Log().Msg("nolevel-1")
-	log.WithLevel(TraceLevel).Msg("5")
-	log.WithLevel(DebugLevel).Msg("6")
-	log.WithLevel(InfoLevel).Msg("7")
-	log.WithLevel(WarnLevel).Msg("8")
-	log.WithLevel(ErrorLevel).Msg("9")
+	log.WithLevel(DebugLevel).Msg("5")
+	log.WithLevel(InfoLevel).Msg("6")
+	log.WithLevel(WarnLevel).Msg("7")
+	log.WithLevel(ErrorLevel).Msg("8")
 	log.WithLevel(NoLevel).Msg("nolevel-2")
 
 	want := []struct {
 		l Level
 		p string
 	}{
-		{TraceLevel, `{"level":"trace","message":"0"}` + "\n"},
 		{DebugLevel, `{"level":"debug","message":"1"}` + "\n"},
 		{InfoLevel, `{"level":"info","message":"2"}` + "\n"},
 		{WarnLevel, `{"level":"warn","message":"3"}` + "\n"},
 		{ErrorLevel, `{"level":"error","message":"4"}` + "\n"},
 		{NoLevel, `{"message":"nolevel-1"}` + "\n"},
-		{TraceLevel, `{"level":"trace","message":"5"}` + "\n"},
-		{DebugLevel, `{"level":"debug","message":"6"}` + "\n"},
-		{InfoLevel, `{"level":"info","message":"7"}` + "\n"},
-		{WarnLevel, `{"level":"warn","message":"8"}` + "\n"},
-		{ErrorLevel, `{"level":"error","message":"9"}` + "\n"},
+		{DebugLevel, `{"level":"debug","message":"5"}` + "\n"},
+		{InfoLevel, `{"level":"info","message":"6"}` + "\n"},
+		{WarnLevel, `{"level":"warn","message":"7"}` + "\n"},
+		{ErrorLevel, `{"level":"error","message":"8"}` + "\n"},
 		{NoLevel, `{"message":"nolevel-2"}` + "\n"},
 	}
 	if got := lw.ops; !reflect.DeepEqual(got, want) {
@@ -679,75 +641,6 @@ func TestErrorMarshalFunc(t *testing.T) {
 	}
 }
 
-func TestCallerMarshalFunc(t *testing.T) {
-	out := &bytes.Buffer{}
-	log := New(out)
-
-	// test default behaviour this is really brittle due to the line numbers
-	// actually mattering for validation
-	_, file, line, _ := runtime.Caller(0)
-	caller := fmt.Sprintf("%s:%d", file, line+2)
-	log.Log().Caller().Msg("msg")
-	if got, want := decodeIfBinaryToString(out.Bytes()), `{"caller":"`+caller+`","message":"msg"}`+"\n"; got != want {
-		t.Errorf("invalid log output:\ngot:  %v\nwant: %v", got, want)
-	}
-	out.Reset()
-
-	// test custom behavior. In this case we'll take just the last directory
-	origCallerMarshalFunc := CallerMarshalFunc
-	defer func() { CallerMarshalFunc = origCallerMarshalFunc }()
-	CallerMarshalFunc = func(file string, line int) string {
-		parts := strings.Split(file, "/")
-		if len(parts) > 1 {
-			return strings.Join(parts[len(parts)-2:], "/") + ":" + strconv.Itoa(line)
-		}
-
-		return file + ":" + strconv.Itoa(line)
-	}
-	_, file, line, _ = runtime.Caller(0)
-	caller = CallerMarshalFunc(file, line+2)
-	log.Log().Caller().Msg("msg")
-	if got, want := decodeIfBinaryToString(out.Bytes()), `{"caller":"`+caller+`","message":"msg"}`+"\n"; got != want {
-		t.Errorf("invalid log output:\ngot:  %v\nwant: %v", got, want)
-	}
-}
-
-func TestLevelFieldMarshalFunc(t *testing.T) {
-	origLevelFieldMarshalFunc := LevelFieldMarshalFunc
-	LevelFieldMarshalFunc = func(l Level) string {
-		return strings.ToUpper(l.String())
-	}
-	defer func() {
-		LevelFieldMarshalFunc = origLevelFieldMarshalFunc
-	}()
-	out := &bytes.Buffer{}
-	log := New(out)
-
-	log.Debug().Msg("test")
-	if got, want := decodeIfBinaryToString(out.Bytes()), `{"level":"DEBUG","message":"test"}`+"\n"; got != want {
-		t.Errorf("invalid log output:\ngot:  %v\nwant: %v", got, want)
-	}
-	out.Reset()
-
-	log.Info().Msg("test")
-	if got, want := decodeIfBinaryToString(out.Bytes()), `{"level":"INFO","message":"test"}`+"\n"; got != want {
-		t.Errorf("invalid log output:\ngot:  %v\nwant: %v", got, want)
-	}
-	out.Reset()
-
-	log.Warn().Msg("test")
-	if got, want := decodeIfBinaryToString(out.Bytes()), `{"level":"WARN","message":"test"}`+"\n"; got != want {
-		t.Errorf("invalid log output:\ngot:  %v\nwant: %v", got, want)
-	}
-	out.Reset()
-
-	log.Error().Msg("test")
-	if got, want := decodeIfBinaryToString(out.Bytes()), `{"level":"ERROR","message":"test"}`+"\n"; got != want {
-		t.Errorf("invalid log output:\ngot:  %v\nwant: %v", got, want)
-	}
-	out.Reset()
-}
-
 type errWriter struct {
 	error
 }

not_go112.go

@@ -1,5 +0,0 @@
-// +build !go1.12
-
-package zerolog
-
-const contextCallerSkipFrameCount = 3

sampler.go

@@ -46,12 +46,8 @@ type BasicSampler struct {
 
 // Sample implements the Sampler interface.
 func (s *BasicSampler) Sample(lvl Level) bool {
-	n := s.N
-	if n == 1 {
-		return true
-	}
 	c := atomic.AddUint32(&s.counter, 1)
-	return c%n == 1
+	return c%s.N == s.N-1
 }
 
 // BurstSampler lets Burst events pass per Period then pass the decision to
@@ -104,15 +100,11 @@ func (s *BurstSampler) inc() uint32 {
 
 // LevelSampler applies a different sampler for each level.
 type LevelSampler struct {
-	TraceSampler, DebugSampler, InfoSampler, WarnSampler, ErrorSampler Sampler
+	DebugSampler, InfoSampler, WarnSampler, ErrorSampler Sampler
 }
 
 func (s LevelSampler) Sample(lvl Level) bool {
 	switch lvl {
-	case TraceLevel:
-		if s.TraceSampler != nil {
-			return s.TraceSampler.Sample(lvl)
-		}
 	case DebugLevel:
 		if s.DebugSampler != nil {
 			return s.DebugSampler.Sample(lvl)

syslog.go

@@ -35,8 +35,6 @@ func (sw syslogWriter) Write(p []byte) (n int, err error) {
 // WriteLevel implements LevelWriter interface.
 func (sw syslogWriter) WriteLevel(level Level, p []byte) (n int, err error) {
 	switch level {
-	case TraceLevel:
-		err = sw.w.Trace(string(p))
 	case DebugLevel:
 		err = sw.w.Debug(string(p))
 	case InfoLevel:

syslog_test.go

@@ -17,10 +17,6 @@ type syslogTestWriter struct {
 func (w *syslogTestWriter) Write(p []byte) (int, error) {
 	return 0, nil
 }
-func (w *syslogTestWriter) Trace(m string) error {
-	w.events = append(w.events, syslogEvent{"Trace", m})
-	return nil
-}
 func (w *syslogTestWriter) Debug(m string) error {
 	w.events = append(w.events, syslogEvent{"Debug", m})
 	return nil
@@ -49,14 +45,12 @@ func (w *syslogTestWriter) Crit(m string) error {
 func TestSyslogWriter(t *testing.T) {
 	sw := &syslogTestWriter{}
 	log := New(SyslogLevelWriter(sw))
-	log.Trace().Msg("trace")
 	log.Debug().Msg("debug")
 	log.Info().Msg("info")
 	log.Warn().Msg("warn")
 	log.Error().Msg("error")
 	log.Log().Msg("nolevel")
 	want := []syslogEvent{
-		{"Trace", `{"level":"trace","message":"trace"}` + "\n"},
 		{"Debug", `{"level":"debug","message":"debug"}` + "\n"},
 		{"Info", `{"level":"info","message":"info"}` + "\n"},
 		{"Warning", `{"level":"warn","message":"warn"}` + "\n"},