deploy-ng: Do not create/copy empty directories

This includes any directories that have all contents ignored.

direct/src/showutil/dist.py

@@ -242,18 +242,29 @@ class build_apps(distutils.core.Command):
             ignore_copy_list += self.exclude_paths
             ignore_copy_list = [p3d.GlobPattern(i) for i in ignore_copy_list]
 
-            def copy_file(src, dst):
-                src = os.path.normpath(src)
-                dst = os.path.normpath(dst)
-
+            def check_pattern(src):
                 for pattern in ignore_copy_list:
                     # Normalize file paths across platforms
-                    path = p3d.Filename.from_os_specific(src).get_fullpath()
+                    path = p3d.Filename.from_os_specific(src).get_fullpath() 
                     #print("check ignore:", pattern, src, pattern.matches(path))
                     if pattern.matches(path):
-                        print("skipping file", src)
-                        return
+                        return True
+                return False
 
+            def dir_has_files(directory):
+                files = [
+                    i for i in os.listdir(directory)
+                    if not check_pattern(os.path.join(directory, i))
+                ]
+                return bool(files)
+
+            def copy_file(src, dst):
+                src = os.path.normpath(src)
+                dst = os.path.normpath(dst)
+
+                if check_pattern(src):
+                    print("skipping file", src)
+                    return
 
                 dst_dir = os.path.dirname(dst)
                 if not os.path.exists(dst_dir):
@@ -278,7 +289,7 @@ class build_apps(distutils.core.Command):
                     d = os.path.join(dst, item)
                     if os.path.isfile(s):
                         copy_file(s, d)
-                    else:
+                    elif dir_has_files(s):
                         copy_dir(s, d)
 
             for path in self.copy_paths: