/
logging.go
50 lines (38 loc) · 890 Bytes
/
logging.go
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package internal
import (
"bufio"
"context"
"io"
"go.uber.org/zap"
)
func StreamingLogger(logger *zap.Logger) io.WriteCloser {
r, w := io.Pipe()
go func() {
defer w.Close()
defer r.Close()
scanner := bufio.NewScanner(r)
for scanner.Scan() {
logger.Debug(scanner.Text())
}
}()
return w
}
type loggerKeyType string
const (
ctxLogger loggerKeyType = "logger"
)
func WithLogger(ctx context.Context, logger *zap.Logger) context.Context {
return context.WithValue(ctx, ctxLogger, logger)
}
func LoggerFromContext(ctx context.Context) *zap.Logger {
if v, ok := ctx.Value(ctxLogger).(*zap.Logger); ok {
return v
}
return zap.L()
}
func SubLogger(ctx context.Context, name string) *zap.Logger {
return LoggerFromContext(ctx).Named(name)
}
func WithSubLogger(ctx context.Context, name string) context.Context {
return WithLogger(ctx, SubLogger(ctx, name))
}