43 lines
869 B
Go
43 lines
869 B
Go
package logging
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import (
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"fmt"
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"io"
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"log/slog"
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"strings"
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)
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func New(w io.Writer, level, format string) (*slog.Logger, error) {
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lvl, err := parseLevel(level)
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if err != nil {
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return nil, err
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}
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opts := &slog.HandlerOptions{Level: lvl}
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var h slog.Handler
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switch strings.ToLower(format) {
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case "", "text":
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h = slog.NewTextHandler(w, opts)
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case "json":
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h = slog.NewJSONHandler(w, opts)
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default:
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return nil, fmt.Errorf("unknown log format %q (want text|json)", format)
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}
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return slog.New(h), nil
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}
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func parseLevel(s string) (slog.Level, error) {
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switch strings.ToLower(strings.TrimSpace(s)) {
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case "", "info":
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return slog.LevelInfo, nil
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case "debug":
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return slog.LevelDebug, nil
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case "warn", "warning":
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return slog.LevelWarn, nil
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case "error":
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return slog.LevelError, nil
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default:
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return 0, fmt.Errorf("unknown log level %q", s)
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}
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}
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