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20 lines
602 B
Go
20 lines
602 B
Go
package jsonlog // import "github.com/docker/docker/daemon/logger/jsonfilelog/jsonlog"
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import (
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"time"
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"github.com/pkg/errors"
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)
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const jsonFormat = `"` + time.RFC3339Nano + `"`
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// fastTimeMarshalJSON avoids one of the extra allocations that
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// time.MarshalJSON is making.
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func fastTimeMarshalJSON(t time.Time) (string, error) {
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if y := t.Year(); y < 0 || y >= 10000 {
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// RFC 3339 is clear that years are 4 digits exactly.
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// See golang.org/issue/4556#c15 for more discussion.
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return "", errors.New("time.MarshalJSON: year outside of range [0,9999]")
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}
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return t.Format(jsonFormat), nil
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}
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