Add remote listing support to sgard list via -r flag.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

cmd/sgard/list.go

@@ -1,41 +1,74 @@
 package main
 
 import (
+	"context"
 	"fmt"
 
 	"github.com/kisom/sgard/garden"
+	"github.com/kisom/sgard/manifest"
 	"github.com/spf13/cobra"
 )
 
+var listRemoteFlag bool
+
 var listCmd = &cobra.Command{
 	Use:   "list",
 	Short: "List all tracked files",
+	Long:  "List all tracked files locally, or on the remote server with -r.",
 	RunE: func(cmd *cobra.Command, args []string) error {
-		g, err := garden.Open(repoFlag)
-		if err != nil {
-			return err
+		if listRemoteFlag {
+			return listRemote()
 		}
-
-		entries := g.List()
-		for _, e := range entries {
-			switch e.Type {
-			case "file":
-				hash := e.Hash
-				if len(hash) > 8 {
-					hash = hash[:8]
-				}
-				fmt.Printf("%-6s %s\t%s\n", "file", e.Path, hash)
-			case "link":
-				fmt.Printf("%-6s %s\t-> %s\n", "link", e.Path, e.Target)
-			case "directory":
-				fmt.Printf("%-6s %s\n", "dir", e.Path)
-			}
-		}
-
-		return nil
+		return listLocal()
 	},
 }
 
+func listLocal() error {
+	g, err := garden.Open(repoFlag)
+	if err != nil {
+		return err
+	}
+
+	printEntries(g.List())
+	return nil
+}
+
+func listRemote() error {
+	ctx := context.Background()
+
+	c, cleanup, err := dialRemote(ctx)
+	if err != nil {
+		return err
+	}
+	defer cleanup()
+
+	entries, err := c.List(ctx)
+	if err != nil {
+		return err
+	}
+
+	printEntries(entries)
+	return nil
+}
+
+func printEntries(entries []manifest.Entry) {
+	for _, e := range entries {
+		switch e.Type {
+		case "file":
+			hash := e.Hash
+			if len(hash) > 8 {
+				hash = hash[:8]
+			}
+			fmt.Printf("%-6s %s\t%s\n", "file", e.Path, hash)
+		case "link":
+			fmt.Printf("%-6s %s\t-> %s\n", "link", e.Path, e.Target)
+		case "directory":
+			fmt.Printf("%-6s %s\n", "dir", e.Path)
+		}
+	}
+}
+
 func init() {
+	listCmd.Flags().BoolVarP(&listRemoteFlag, "use-remote", "r", false, "list files on the remote server")
 	rootCmd.AddCommand(listCmd)
 }