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package cmd
import (
"io"
"log/slog"
"os"
"golang.org/x/term"
"github.com/ethereum/go-ethereum/log"
)
func Logger(w io.Writer, lvl slog.Level) log.Logger {
if term.IsTerminal(int(os.Stdout.Fd())) {
return log.NewLogger(log.LogfmtHandlerWithLevel(w, lvl))
} else {
return log.NewLogger(rawLogHandler(w, lvl))
}
}
// rawLogHandler returns a handler that strips out the time attribute
func rawLogHandler(wr io.Writer, lvl slog.Level) slog.Handler {
return slog.NewTextHandler(wr, &slog.HandlerOptions{
ReplaceAttr: replaceAttr,
Level: &leveler{lvl},
})
}
type leveler struct{ minLevel slog.Level }
func (l *leveler) Level() slog.Level {
return l.minLevel
}
func replaceAttr(_ []string, attr slog.Attr) slog.Attr {
if attr.Key == slog.TimeKey {
return slog.Attr{}
}
return attr
}