internal/app/paths: defer extra formatting

This reduces payload size for params to shim.

Signed-off-by: Ophestra <cat@gensokyo.uk>

cmd/hakurei/command.go

@@ -231,7 +231,7 @@ func buildCommand(ctx context.Context, msg container.Msg, early *earlyHardeningE
 		var flagShort bool
 		c.NewCommand("ps", "List active instances", func(args []string) error {
 			var sc hst.Paths
-			app.CopyPaths(&sc, new(app.Hsu).MustID())
+			app.CopyPaths().Copy(&sc, new(app.Hsu).MustID())
 			printPs(os.Stdout, time.Now().UTC(), state.NewMulti(msg, sc.RunDirPath.String()), flagShort, flagJSON)
 			return errSuccess
 		}).Flag(&flagShort, "short", command.BoolFlag(false), "Print instance id")

cmd/hakurei/parse.go

@@ -89,7 +89,7 @@ func tryShort(msg container.Msg, name string) (config *hst.Config, entry *state.
 		msg.Verbose("argument looks like prefix")
 
 		var sc hst.Paths
-		app.CopyPaths(&sc, new(app.Hsu).MustID())
+		app.CopyPaths().Copy(&sc, new(app.Hsu).MustID())
 		s := state.NewMulti(msg, sc.RunDirPath.String())
 		if entries, err := state.Join(s); err != nil {
 			log.Printf("cannot join store: %v", err)

cmd/hakurei/print.go

@@ -22,7 +22,7 @@ func printShowSystem(output io.Writer, short, flagJSON bool) {
 	defer t.MustFlush()
 
 	info := &hst.Info{User: new(app.Hsu).MustID()}
-	app.CopyPaths(&info.Paths, info.User)
+	app.CopyPaths().Copy(&info.Paths, info.User)
 
 	if flagJSON {
 		printJSON(output, short, info)