Implement auto reload of config

tools/cmd/tool/main.go

@@ -37,6 +37,7 @@ import (
 	"github.com/kovidgoyal/kitty/tools/cmd/update_self"
 	"github.com/kovidgoyal/kitty/tools/tui"
 	"github.com/kovidgoyal/kitty/tools/utils/images"
+	"github.com/kovidgoyal/kitty/tools/watch"
 )
 
 var _ = fmt.Print
@@ -135,7 +136,7 @@ func KittyToolEntryPoints(root *cli.Command) {
 		},
 	})
 	// __watch_conf__
-
+	watch.EntryPoint(root)
 	// __convert_image__
 	images.ConvertEntryPoint(root)
 	// __atexit__

tools/watch/api.go

@@ -27,7 +27,9 @@ func watch_dirs(ctx context.Context, paths []string, debounce time.Duration, eve
 		fswatcher.WithCooldown(debounce),
 	}
 	for _, path := range paths {
-		opts = append(opts, fswatcher.WithPath(path))
+		if unix.Access(path, unix.R_OK|unix.X_OK) == nil {
+			opts = append(opts, fswatcher.WithPath(path))
+		}
 	}
 	w, err := fswatcher.New(opts...)
 	if err != nil {