Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/outputs/groundwork/log_adapter.go

@@ -0,0 +1,87 @@
+package groundwork
+
+import (
+	"context"
+	"encoding/json"
+	"log/slog" //nolint:depguard // Required for wrapping internal logging facility
+	"strings"
+
+	"github.com/influxdata/telegraf"
+)
+
+// newLogger creates telegraf.Logger adapter for slog.Logger
+func newLogger(l telegraf.Logger) *slog.Logger {
+	return slog.New(&tlgHandler{Log: l})
+}
+
+// tlgHandler translates slog.Record into telegraf.Logger call
+// inspired by https://github.com/golang/example/blob/master/slog-handler-guide/README.md
+type tlgHandler struct {
+	attrs  []slog.Attr
+	groups []string
+
+	Log telegraf.Logger
+}
+
+// Enabled implements slog.Handler interface
+// It interprets errors as errors and everything else as debug.
+func (h *tlgHandler) Enabled(_ context.Context, level slog.Level) bool {
+	if level == slog.LevelError {
+		return h.Log.Level() >= telegraf.Error
+	}
+	return h.Log.Level() >= telegraf.Debug
+}
+
+// Handle implements slog.Handler interface
+// It interprets errors as errors and everything else as debug.
+func (h *tlgHandler) Handle(_ context.Context, r slog.Record) error {
+	attrs := make([]slog.Attr, 0, 2+len(h.attrs)+r.NumAttrs())
+	attrs = append(attrs,
+		slog.String("logger", strings.Join(h.groups, ",")),
+		slog.String("message", r.Message),
+	)
+	attrs = append(attrs, h.attrs...)
+
+	r.Attrs(func(attr slog.Attr) bool {
+		if v, ok := attr.Value.Any().(json.RawMessage); ok {
+			attrs = append(attrs, slog.String(attr.Key, string(v)))
+			return true
+		}
+		attrs = append(attrs, attr)
+		return true
+	})
+
+	if r.Level == slog.LevelError {
+		h.Log.Error(attrs)
+	} else {
+		h.Log.Debug(attrs)
+	}
+
+	return nil
+}
+
+// WithAttrs implements slog.Handler interface
+func (h *tlgHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
+	nested := &tlgHandler{Log: h.Log}
+	nested.attrs = append(nested.attrs, h.attrs...)
+	nested.groups = append(nested.groups, h.groups...)
+
+	for _, attr := range attrs {
+		if v, ok := attr.Value.Any().(json.RawMessage); ok {
+			nested.attrs = append(nested.attrs, slog.String(attr.Key, string(v)))
+			continue
+		}
+		nested.attrs = append(nested.attrs, attr)
+	}
+
+	return nested
+}
+
+// WithGroup implements slog.Handler interface
+func (h *tlgHandler) WithGroup(name string) slog.Handler {
+	nested := &tlgHandler{Log: h.Log}
+	nested.attrs = append(nested.attrs, h.attrs...)
+	nested.groups = append(nested.groups, h.groups...)
+	nested.groups = append(nested.groups, name)
+	return nested
+}