repo: add --format flag to deferred info command

repo/actions.go

 package repo
 
 import (
-	"ximperconf/config"
-
 	"context"
 	"fmt"
 	"io"
 	"net/http"
 	"os"
 	"regexp"
+	"ximperconf/config"
+	"ximperconf/ui"
 
 	"github.com/fatih/color"
 	"github.com/urfave/cli/v3"
 )
 
+type DeferredInfo struct {
+	LastUpdate  string `json:"last_update"`
+	ArchiveDate string `json:"archive_date"`
+}
+
 var (
 	reLastUpdate  = regexp.MustCompile(`Last update date: ([0-9:\- ]+)`)
 	reArchiveDate = regexp.MustCompile(`Sisyphus archive date: ([0-9\-]+)`)
@@ -73,6 +78,13 @@ func DeferredInfoCommand(ctx context.Context, cmd *cli.Command) error {
 	lastUpdate := deferredLastUpdate(html)
 	archiveDate := deferredArchiveDate(html)
 
+	if config.IsJSON(cmd) {
+		return ui.PrintJSON(DeferredInfo{
+			LastUpdate:  lastUpdate,
+			ArchiveDate: archiveDate,
+		})
+	}
+
 	color.Green("Deferred:")
 	fmt.Printf("    Последнее обновление: %s\n", lastUpdate)
 	fmt.Printf("    Дата архива:          %s\n", archiveDate)

repo/commands.go

 package repo
 
-import "github.com/urfave/cli/v3"
+import (
+	"ximperconf/config"
+
+	"github.com/urfave/cli/v3"
+)
 
 func CommandList() *cli.Command {
 	return &cli.Command{
@@ -14,6 +18,9 @@ func CommandList() *cli.Command {
 					{
 						Name:  "info",
 						Usage: "Deferred repo info",
+						Flags: []cli.Flag{
+							config.FormatFlag,
+						},
 						Action: DeferredInfoCommand,
 					},
 					{