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76 lines
1.7 KiB
Go
76 lines
1.7 KiB
Go
package format
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import (
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"bytes"
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"fmt"
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"github.com/mattermost/logr"
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)
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// Plain is the simplest formatter, outputting only text with
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// no colors.
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type Plain struct {
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// DisableTimestamp disables output of timestamp field.
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DisableTimestamp bool
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// DisableLevel disables output of level field.
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DisableLevel bool
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// DisableMsg disables output of msg field.
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DisableMsg bool
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// DisableContext disables output of all context fields.
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DisableContext bool
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// DisableStacktrace disables output of stack trace.
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DisableStacktrace bool
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// Delim is an optional delimiter output between each log field.
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// Defaults to a single space.
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Delim string
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// TimestampFormat is an optional format for timestamps. If empty
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// then DefTimestampFormat is used.
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TimestampFormat string
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}
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// Format converts a log record to bytes.
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func (p *Plain) Format(rec *logr.LogRec, stacktrace bool, buf *bytes.Buffer) (*bytes.Buffer, error) {
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delim := p.Delim
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if delim == "" {
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delim = " "
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}
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if buf == nil {
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buf = &bytes.Buffer{}
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}
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timestampFmt := p.TimestampFormat
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if timestampFmt == "" {
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timestampFmt = logr.DefTimestampFormat
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}
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if !p.DisableTimestamp {
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var arr [128]byte
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tbuf := rec.Time().AppendFormat(arr[:0], timestampFmt)
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buf.Write(tbuf)
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buf.WriteString(delim)
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}
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if !p.DisableLevel {
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fmt.Fprintf(buf, "%v%s", rec.Level().Name, delim)
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}
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if !p.DisableMsg {
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fmt.Fprint(buf, rec.Msg(), delim)
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}
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if !p.DisableContext {
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ctx := rec.Fields()
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if len(ctx) > 0 {
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logr.WriteFields(buf, ctx, " ")
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}
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}
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if stacktrace && !p.DisableStacktrace {
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frames := rec.StackFrames()
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if len(frames) > 0 {
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buf.WriteString("\n")
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logr.WriteStacktrace(buf, rec.StackFrames())
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}
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}
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buf.WriteString("\n")
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return buf, nil
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}
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