Add sgard info command for detailed file inspection.

Shows path, type, status, mode, hash, timestamps, encryption,
lock state, and targeting labels for a single tracked file.

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

cmd/sgard/info.go

@@ -0,0 +1,79 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/kisom/sgard/garden"
+	"github.com/spf13/cobra"
+)
+
+var infoCmd = &cobra.Command{
+	Use:   "info <path>",
+	Short: "Show detailed information about a tracked file",
+	Args:  cobra.ExactArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		g, err := garden.Open(repoFlag)
+		if err != nil {
+			return err
+		}
+
+		fi, err := g.Info(args[0])
+		if err != nil {
+			return err
+		}
+
+		fmt.Printf("Path:       %s\n", fi.Path)
+		fmt.Printf("Type:       %s\n", fi.Type)
+		fmt.Printf("Status:     %s\n", fi.State)
+		fmt.Printf("Mode:       %s\n", fi.Mode)
+
+		if fi.Locked {
+			fmt.Printf("Locked:     yes\n")
+		}
+		if fi.Encrypted {
+			fmt.Printf("Encrypted:  yes\n")
+		}
+
+		if fi.Updated != "" {
+			fmt.Printf("Updated:    %s\n", fi.Updated)
+		}
+		if fi.DiskModTime != "" {
+			fmt.Printf("Disk mtime: %s\n", fi.DiskModTime)
+		}
+
+		switch fi.Type {
+		case "file":
+			fmt.Printf("Hash:       %s\n", fi.Hash)
+			if fi.CurrentHash != "" && fi.CurrentHash != fi.Hash {
+				fmt.Printf("Disk hash:  %s\n", fi.CurrentHash)
+			}
+			if fi.PlaintextHash != "" {
+				fmt.Printf("PT hash:    %s\n", fi.PlaintextHash)
+			}
+			if fi.BlobStored {
+				fmt.Printf("Blob:       stored\n")
+			} else {
+				fmt.Printf("Blob:       missing\n")
+			}
+		case "link":
+			fmt.Printf("Target:     %s\n", fi.Target)
+			if fi.CurrentTarget != "" && fi.CurrentTarget != fi.Target {
+				fmt.Printf("Disk target: %s\n", fi.CurrentTarget)
+			}
+		}
+
+		if len(fi.Only) > 0 {
+			fmt.Printf("Only:       %s\n", strings.Join(fi.Only, ", "))
+		}
+		if len(fi.Never) > 0 {
+			fmt.Printf("Never:      %s\n", strings.Join(fi.Never, ", "))
+		}
+
+		return nil
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(infoCmd)
+}