Adding upstream version 1.34.4.

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

plugins/processors/date/date.go

@@ -0,0 +1,77 @@
+//go:generate ../../../tools/readme_config_includer/generator
+package date
+
+import (
+	_ "embed"
+	"errors"
+	"time"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/config"
+	"github.com/influxdata/telegraf/plugins/processors"
+)
+
+//go:embed sample.conf
+var sampleConfig string
+
+const defaultTimezone = "UTC"
+
+type Date struct {
+	TagKey     string          `toml:"tag_key"`
+	FieldKey   string          `toml:"field_key"`
+	DateFormat string          `toml:"date_format"`
+	DateOffset config.Duration `toml:"date_offset"`
+	Timezone   string          `toml:"timezone"`
+
+	location *time.Location
+}
+
+func (*Date) SampleConfig() string {
+	return sampleConfig
+}
+
+func (d *Date) Init() error {
+	// Check either TagKey or FieldKey specified
+	if len(d.FieldKey) > 0 && len(d.TagKey) > 0 {
+		return errors.New("field_key and tag_key cannot be specified at the same time")
+	} else if len(d.FieldKey) == 0 && len(d.TagKey) == 0 {
+		return errors.New("at least one of field_key or tag_key must be specified")
+	}
+
+	// LoadLocation returns UTC if timezone is the empty string.
+	var err error
+	d.location, err = time.LoadLocation(d.Timezone)
+	return err
+}
+
+func (d *Date) Apply(in ...telegraf.Metric) []telegraf.Metric {
+	for _, point := range in {
+		tm := point.Time().In(d.location).Add(time.Duration(d.DateOffset))
+		if len(d.TagKey) > 0 {
+			point.AddTag(d.TagKey, tm.Format(d.DateFormat))
+		} else if len(d.FieldKey) > 0 {
+			switch d.DateFormat {
+			case "unix":
+				point.AddField(d.FieldKey, tm.Unix())
+			case "unix_ms":
+				point.AddField(d.FieldKey, tm.UnixNano()/1000000)
+			case "unix_us":
+				point.AddField(d.FieldKey, tm.UnixNano()/1000)
+			case "unix_ns":
+				point.AddField(d.FieldKey, tm.UnixNano())
+			default:
+				point.AddField(d.FieldKey, tm.Format(d.DateFormat))
+			}
+		}
+	}
+
+	return in
+}
+
+func init() {
+	processors.Add("date", func() telegraf.Processor {
+		return &Date{
+			Timezone: defaultTimezone,
+		}
+	})
+}