feat: support days/weeks in serpent.Duration

Signed-off-by: Danny Kopping <danny@coder.com>

Author: dannykopping

go.mod

@@ -13,6 +13,7 @@ require (
 	github.com/pion/udp v0.1.4
 	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.8.4
+	github.com/xhit/go-str2duration/v2 v2.1.0
 	golang.org/x/crypto v0.19.0
 	golang.org/x/exp v0.0.0-20240213143201-ec583247a57a
 	golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028

go.sum

@@ -81,6 +81,8 @@ github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
+github.com/xhit/go-str2duration/v2 v2.1.0 h1:lxklc02Drh6ynqX+DdPyp5pCKLUQpRT8bp8Ydu2Bstc=
+github.com/xhit/go-str2duration/v2 v2.1.0/go.mod h1:ohY8p+0f07DiV6Em5LKB0s2YpLtXVyJfNt1+BlmyAsU=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 go.opentelemetry.io/otel v1.19.0 h1:MuS/TNf4/j4IXsZuJegVzI1cwut7Qc00344rgH7p8bs=
 go.opentelemetry.io/otel v1.19.0/go.mod h1:i0QyjOq3UPoTzff0PJB2N66fb4S0+rSbSB15/oyH9fY=

values.go

@@ -13,6 +13,7 @@ import (
 	"time"
 
 	"github.com/spf13/pflag"
+	str2duration "github.com/xhit/go-str2duration/v2"
 	"golang.org/x/xerrors"
 	"gopkg.in/yaml.v3"
 )
@@ -262,7 +263,16 @@ func DurationOf(d *time.Duration) *Duration {
 }
 
 func (d *Duration) Set(v string) error {
-	dd, err := time.ParseDuration(v)
+	// Try [str2duration.ParseDuration] first, which supports days and weeks.
+	// If it fails, fall back to [time.ParseDuration] for backward compatibility.
+	dd, err := str2duration.ParseDuration(v)
+	if err == nil {
+		*d = Duration(dd)
+		return nil
+	}
+
+	// Fallback to standard [time.ParseDuration].
+	dd, err = time.ParseDuration(v)
 	*d = Duration(dd)
 	return err
 }