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53 lines
1.7 KiB
Go
53 lines
1.7 KiB
Go
package log
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import (
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"time"
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"github.com/go-kit/log"
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)
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// A Valuer generates a log value. When passed to With, WithPrefix, or
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// WithSuffix in a value element (odd indexes), it represents a dynamic
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// value which is re-evaluated with each log event.
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type Valuer = log.Valuer
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// Timestamp returns a timestamp Valuer. It invokes the t function to get the
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// time; unless you are doing something tricky, pass time.Now.
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//
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// Most users will want to use DefaultTimestamp or DefaultTimestampUTC, which
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// are TimestampFormats that use the RFC3339Nano format.
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func Timestamp(t func() time.Time) Valuer {
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return log.Timestamp(t)
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}
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// TimestampFormat returns a timestamp Valuer with a custom time format. It
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// invokes the t function to get the time to format; unless you are doing
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// something tricky, pass time.Now. The layout string is passed to
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// Time.Format.
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//
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// Most users will want to use DefaultTimestamp or DefaultTimestampUTC, which
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// are TimestampFormats that use the RFC3339Nano format.
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func TimestampFormat(t func() time.Time, layout string) Valuer {
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return log.TimestampFormat(t, layout)
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}
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// Caller returns a Valuer that returns a file and line from a specified depth
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// in the callstack. Users will probably want to use DefaultCaller.
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func Caller(depth int) Valuer {
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return log.Caller(depth)
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}
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var (
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// DefaultTimestamp is a Valuer that returns the current wallclock time,
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// respecting time zones, when bound.
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DefaultTimestamp = log.DefaultTimestamp
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// DefaultTimestampUTC is a Valuer that returns the current time in UTC
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// when bound.
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DefaultTimestampUTC = log.DefaultTimestampUTC
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// DefaultCaller is a Valuer that returns the file and line where the Log
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// method was invoked. It can only be used with log.With.
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DefaultCaller = log.DefaultCaller
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)
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