PackageManifest: Ignore hidden files for examples

platformio/package/manifest/model.py

@@ -42,7 +42,7 @@ class ExportModel(DataModel):
 
 
 class ExampleModel(DataModel):
-    name = DataField(max_length=100, regex=r"^[a-zA-Z\d\-\_ ]+$", required=True)
+    name = DataField(max_length=100, regex=r"^[a-zA-Z\d\-\_/ ]+$", required=True)
     base = DataField(required=True)
     files = DataField(type=ListOfType(DataField()))
 

platformio/package/manifest/parser.py

@@ -180,6 +180,11 @@ class BaseManifestParser(object):
         result = {}
         last_pio_project = None
         for root, _, files in os.walk(examples_dir):
+            # skip hidden files and folders
+            files = [f for f in files if not f.startswith(".")]
+            if os.path.basename(root).startswith(".") or not files:
+                continue
+
             if is_platformio_project(root):
                 last_pio_project = root
                 result[last_pio_project] = dict(