feat: add debug flag and enforce argument requirements (#396)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Itxaka

internal/cmd/build-uki.go

@@ -688,6 +688,9 @@ func createInitramfs(sourceDir, artifactsTempDir string) error {
 		"proc": true,
 	}
 
+	// TODO: Exclude systemd-bootx64.efi, linuxx64.efi.stub, addonx64.efi.stub and arm64 counterparts from the initramfs
+	// we dont want to ship those in the final image!
+
 	if err = os.Chdir(sourceDir); err != nil {
 		return fmt.Errorf("changing to %s directory: %w", sourceDir, err)
 	}

internal/cmd/sysext.go

@@ -49,12 +49,20 @@ var SysextCmd = cli.Command{
 			Value: "amd64",
 			Usage: "Arch to get the image from and build the sysext for. Accepts amd64 and arm64 values.",
 		},
+		&cli.BoolFlag{
+			Name:  "debug",
+			Value: false,
+			Usage: "Enable debug logging",
+		},
 	},
 	Before: func(ctx *cli.Context) error {
 		arch := ctx.String("arch")
 		if arch != "amd64" && arch != "arm64" {
 			return fmt.Errorf("unsupported architecture: %s", arch)
 		}
+		if ctx.NArg() < 2 {
+			return fmt.Errorf("missing required arguments: <name> <container>")
+		}
 		return nil
 	},
 	Action: func(ctx *cli.Context) error {