diff options
Diffstat (limited to 'vendor/github.com/sirupsen/logrus/text_formatter.go')
-rw-r--r-- | vendor/github.com/sirupsen/logrus/text_formatter.go | 236 |
1 files changed, 171 insertions, 65 deletions
diff --git a/vendor/github.com/sirupsen/logrus/text_formatter.go b/vendor/github.com/sirupsen/logrus/text_formatter.go index ba8885406..e01587c43 100644 --- a/vendor/github.com/sirupsen/logrus/text_formatter.go +++ b/vendor/github.com/sirupsen/logrus/text_formatter.go @@ -3,6 +3,8 @@ package logrus import ( "bytes" "fmt" + "os" + "runtime" "sort" "strings" "sync" @@ -10,22 +12,19 @@ import ( ) const ( - nocolor = 0 - red = 31 - green = 32 - yellow = 33 - blue = 34 - gray = 37 + red = 31 + yellow = 33 + blue = 36 + gray = 37 ) -var ( - baseTimestamp time.Time -) +var baseTimestamp time.Time func init() { baseTimestamp = time.Now() } +// TextFormatter formats logs into text type TextFormatter struct { // Set to true to bypass checking for a TTY before outputting colors. ForceColors bool @@ -33,6 +32,9 @@ type TextFormatter struct { // Force disabling colors. DisableColors bool + // Override coloring based on CLICOLOR and CLICOLOR_FORCE. - https://bixense.com/clicolors/ + EnvironmentOverrideColors bool + // Disable timestamp logging. useful when output is redirected to logging // system that already adds timestamps. DisableTimestamp bool @@ -49,66 +51,151 @@ type TextFormatter struct { // be desired. DisableSorting bool + // The keys sorting function, when uninitialized it uses sort.Strings. + SortingFunc func([]string) + + // Disables the truncation of the level text to 4 characters. + DisableLevelTruncation bool + // QuoteEmptyFields will wrap empty fields in quotes if true QuoteEmptyFields bool - // QuoteCharacter can be set to the override the default quoting character " - // with something else. For example: ', or `. - QuoteCharacter string - // Whether the logger's out is to a terminal isTerminal bool - sync.Once + // FieldMap allows users to customize the names of keys for default fields. + // As an example: + // formatter := &TextFormatter{ + // FieldMap: FieldMap{ + // FieldKeyTime: "@timestamp", + // FieldKeyLevel: "@level", + // FieldKeyMsg: "@message"}} + FieldMap FieldMap + + // CallerPrettyfier can be set by the user to modify the content + // of the function and file keys in the data when ReportCaller is + // activated. If any of the returned value is the empty string the + // corresponding key will be removed from fields. + CallerPrettyfier func(*runtime.Frame) (function string, file string) + + terminalInitOnce sync.Once } func (f *TextFormatter) init(entry *Entry) { - if len(f.QuoteCharacter) == 0 { - f.QuoteCharacter = "\"" - } if entry.Logger != nil { - f.isTerminal = IsTerminal(entry.Logger.Out) + f.isTerminal = checkIfTerminal(entry.Logger.Out) } } +func (f *TextFormatter) isColored() bool { + isColored := f.ForceColors || (f.isTerminal && (runtime.GOOS != "windows")) + + if f.EnvironmentOverrideColors { + if force, ok := os.LookupEnv("CLICOLOR_FORCE"); ok && force != "0" { + isColored = true + } else if ok && force == "0" { + isColored = false + } else if os.Getenv("CLICOLOR") == "0" { + isColored = false + } + } + + return isColored && !f.DisableColors +} + +// Format renders a single log entry func (f *TextFormatter) Format(entry *Entry) ([]byte, error) { - var b *bytes.Buffer - keys := make([]string, 0, len(entry.Data)) - for k := range entry.Data { + data := make(Fields) + for k, v := range entry.Data { + data[k] = v + } + prefixFieldClashes(data, f.FieldMap, entry.HasCaller()) + keys := make([]string, 0, len(data)) + for k := range data { keys = append(keys, k) } + var funcVal, fileVal string + + fixedKeys := make([]string, 0, 4+len(data)) + if !f.DisableTimestamp { + fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyTime)) + } + fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyLevel)) + if entry.Message != "" { + fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyMsg)) + } + if entry.err != "" { + fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyLogrusError)) + } + if entry.HasCaller() { + if f.CallerPrettyfier != nil { + funcVal, fileVal = f.CallerPrettyfier(entry.Caller) + } else { + funcVal = entry.Caller.Function + fileVal = fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line) + } + + if funcVal != "" { + fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyFunc)) + } + if fileVal != "" { + fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyFile)) + } + } + if !f.DisableSorting { - sort.Strings(keys) + if f.SortingFunc == nil { + sort.Strings(keys) + fixedKeys = append(fixedKeys, keys...) + } else { + if !f.isColored() { + fixedKeys = append(fixedKeys, keys...) + f.SortingFunc(fixedKeys) + } else { + f.SortingFunc(keys) + } + } + } else { + fixedKeys = append(fixedKeys, keys...) } + + var b *bytes.Buffer if entry.Buffer != nil { b = entry.Buffer } else { b = &bytes.Buffer{} } - prefixFieldClashes(entry.Data) - - f.Do(func() { f.init(entry) }) - - isColored := (f.ForceColors || f.isTerminal) && !f.DisableColors + f.terminalInitOnce.Do(func() { f.init(entry) }) timestampFormat := f.TimestampFormat if timestampFormat == "" { - timestampFormat = DefaultTimestampFormat + timestampFormat = defaultTimestampFormat } - if isColored { - f.printColored(b, entry, keys, timestampFormat) + if f.isColored() { + f.printColored(b, entry, keys, data, timestampFormat) } else { - if !f.DisableTimestamp { - f.appendKeyValue(b, "time", entry.Time.Format(timestampFormat)) - } - f.appendKeyValue(b, "level", entry.Level.String()) - if entry.Message != "" { - f.appendKeyValue(b, "msg", entry.Message) - } - for _, key := range keys { - f.appendKeyValue(b, key, entry.Data[key]) + + for _, key := range fixedKeys { + var value interface{} + switch { + case key == f.FieldMap.resolve(FieldKeyTime): + value = entry.Time.Format(timestampFormat) + case key == f.FieldMap.resolve(FieldKeyLevel): + value = entry.Level.String() + case key == f.FieldMap.resolve(FieldKeyMsg): + value = entry.Message + case key == f.FieldMap.resolve(FieldKeyLogrusError): + value = entry.err + case key == f.FieldMap.resolve(FieldKeyFunc) && entry.HasCaller(): + value = funcVal + case key == f.FieldMap.resolve(FieldKeyFile) && entry.HasCaller(): + value = fileVal + default: + value = data[key] + } + f.appendKeyValue(b, key, value) } } @@ -116,10 +203,10 @@ func (f *TextFormatter) Format(entry *Entry) ([]byte, error) { return b.Bytes(), nil } -func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string, timestampFormat string) { +func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string, data Fields, timestampFormat string) { var levelColor int switch entry.Level { - case DebugLevel: + case DebugLevel, TraceLevel: levelColor = gray case WarnLevel: levelColor = yellow @@ -129,17 +216,42 @@ func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []strin levelColor = blue } - levelText := strings.ToUpper(entry.Level.String())[0:4] + levelText := strings.ToUpper(entry.Level.String()) + if !f.DisableLevelTruncation { + levelText = levelText[0:4] + } + + // Remove a single newline if it already exists in the message to keep + // the behavior of logrus text_formatter the same as the stdlib log package + entry.Message = strings.TrimSuffix(entry.Message, "\n") + + caller := "" + if entry.HasCaller() { + funcVal := fmt.Sprintf("%s()", entry.Caller.Function) + fileVal := fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line) + + if f.CallerPrettyfier != nil { + funcVal, fileVal = f.CallerPrettyfier(entry.Caller) + } + + if fileVal == "" { + caller = funcVal + } else if funcVal == "" { + caller = fileVal + } else { + caller = fileVal + " " + funcVal + } + } if f.DisableTimestamp { - fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m %-44s ", levelColor, levelText, entry.Message) + fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m%s %-44s ", levelColor, levelText, caller, entry.Message) } else if !f.FullTimestamp { - fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, int(entry.Time.Sub(baseTimestamp)/time.Second), entry.Message) + fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d]%s %-44s ", levelColor, levelText, int(entry.Time.Sub(baseTimestamp)/time.Second), caller, entry.Message) } else { - fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), entry.Message) + fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s]%s %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), caller, entry.Message) } for _, k := range keys { - v := entry.Data[k] + v := data[k] fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=", levelColor, k) f.appendValue(b, v) } @@ -153,7 +265,7 @@ func (f *TextFormatter) needsQuoting(text string) bool { if !((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || (ch >= '0' && ch <= '9') || - ch == '-' || ch == '.') { + ch == '-' || ch == '.' || ch == '_' || ch == '/' || ch == '@' || ch == '^' || ch == '+') { return true } } @@ -161,29 +273,23 @@ func (f *TextFormatter) needsQuoting(text string) bool { } func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) { - + if b.Len() > 0 { + b.WriteByte(' ') + } b.WriteString(key) b.WriteByte('=') f.appendValue(b, value) - b.WriteByte(' ') } func (f *TextFormatter) appendValue(b *bytes.Buffer, value interface{}) { - switch value := value.(type) { - case string: - if !f.needsQuoting(value) { - b.WriteString(value) - } else { - fmt.Fprintf(b, "%s%v%s", f.QuoteCharacter, value, f.QuoteCharacter) - } - case error: - errmsg := value.Error() - if !f.needsQuoting(errmsg) { - b.WriteString(errmsg) - } else { - fmt.Fprintf(b, "%s%v%s", f.QuoteCharacter, errmsg, f.QuoteCharacter) - } - default: - fmt.Fprint(b, value) + stringVal, ok := value.(string) + if !ok { + stringVal = fmt.Sprint(value) + } + + if !f.needsQuoting(stringVal) { + b.WriteString(stringVal) + } else { + b.WriteString(fmt.Sprintf("%q", stringVal)) } } |