Code quality: Fix header guards consistency

Adds `header_guards.sh` bash script, used in CI to validate future
changes. Can be run locally to fix invalid header guards.

23 files changed, 32 insertions, 29 deletions

diff --git a/scene/gui/base_button.h b/scene/gui/base_button.h
index ba3852ec98..7cf8de6432 100644
--- a/scene/gui/base_button.h
+++ b/scene/gui/base_button.h
@@ -155,4 +155,4 @@ public:
 	ButtonGroup();
 };
 
-#endif
+#endif // BASE_BUTTON_H
diff --git a/scene/gui/button.h b/scene/gui/button.h
index 7a29cba677..9d8d457f7c 100644
--- a/scene/gui/button.h
+++ b/scene/gui/button.h
@@ -98,4 +98,4 @@ public:
 	~Button();
 };
 
-#endif
+#endif // BUTTON_H
diff --git a/scene/gui/code_edit.h b/scene/gui/code_edit.h
index a431d8a5b2..08bd91a368 100644
--- a/scene/gui/code_edit.h
+++ b/scene/gui/code_edit.h
@@ -28,8 +28,8 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#ifndef CODEEDIT_H
-#define CODEEDIT_H
+#ifndef CODE_EDIT_H
+#define CODE_EDIT_H
 
 #include "scene/gui/text_edit.h"
 
@@ -433,4 +433,4 @@ public:
 
 VARIANT_ENUM_CAST(CodeEdit::CodeCompletionKind);
 
-#endif // CODEEDIT_H
+#endif // CODE_EDIT_H
diff --git a/scene/gui/color_picker.h b/scene/gui/color_picker.h
index e219c78319..8e65ee1861 100644
--- a/scene/gui/color_picker.h
+++ b/scene/gui/color_picker.h
@@ -276,4 +276,5 @@ public:
 
 VARIANT_ENUM_CAST(ColorPicker::PickerShapeType);
 VARIANT_ENUM_CAST(ColorPicker::ColorModeType);
+
 #endif // COLOR_PICKER_H
diff --git a/scene/gui/control.h b/scene/gui/control.h
index 50cf9faeed..d9c29a9c87 100644
--- a/scene/gui/control.h
+++ b/scene/gui/control.h
@@ -574,4 +574,4 @@ VARIANT_ENUM_CAST(Control::LayoutMode);
 VARIANT_ENUM_CAST(Control::LayoutDirection);
 VARIANT_ENUM_CAST(Control::TextDirection);
 
-#endif
+#endif // CONTROL_H
diff --git a/scene/gui/dialogs.h b/scene/gui/dialogs.h
index 711361de88..9ebf5ddfb2 100644
--- a/scene/gui/dialogs.h
+++ b/scene/gui/dialogs.h
@@ -120,4 +120,4 @@ public:
 	ConfirmationDialog();
 };
 
-#endif
+#endif // DIALOGS_H
diff --git a/scene/gui/file_dialog.h b/scene/gui/file_dialog.h
index 017c9d8d4f..4945094086 100644
--- a/scene/gui/file_dialog.h
+++ b/scene/gui/file_dialog.h
@@ -196,4 +196,4 @@ public:
 VARIANT_ENUM_CAST(FileDialog::FileMode);
 VARIANT_ENUM_CAST(FileDialog::Access);
 
-#endif
+#endif // FILE_DIALOG_H
diff --git a/scene/gui/graph_edit.h b/scene/gui/graph_edit.h
index 02e90e4717..beb17ec4cf 100644
--- a/scene/gui/graph_edit.h
+++ b/scene/gui/graph_edit.h
@@ -365,4 +365,4 @@ public:
 
 VARIANT_ENUM_CAST(GraphEdit::PanningScheme);
 
-#endif // GRAPHEdit_H
+#endif // GRAPH_EDIT_H
diff --git a/scene/gui/item_list.h b/scene/gui/item_list.h
index c7d87da0b5..21bd22759c 100644
--- a/scene/gui/item_list.h
+++ b/scene/gui/item_list.h
@@ -28,8 +28,8 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#ifndef ITEMLIST_H
-#define ITEMLIST_H
+#ifndef ITEM_LIST_H
+#define ITEM_LIST_H
 
 #include "scene/gui/control.h"
 #include "scene/gui/scroll_bar.h"
@@ -259,4 +259,4 @@ public:
 VARIANT_ENUM_CAST(ItemList::SelectMode);
 VARIANT_ENUM_CAST(ItemList::IconMode);
 
-#endif // ITEMLIST_H
+#endif // ITEM_LIST_H
diff --git a/scene/gui/label.h b/scene/gui/label.h
index 3734fce1bb..cab5b36d68 100644
--- a/scene/gui/label.h
+++ b/scene/gui/label.h
@@ -140,4 +140,4 @@ public:
 	~Label();
 };
 
-#endif
+#endif // LABEL_H
diff --git a/scene/gui/line_edit.h b/scene/gui/line_edit.h
index 557da35bfd..6aa1694f1f 100644
--- a/scene/gui/line_edit.h
+++ b/scene/gui/line_edit.h
@@ -336,4 +336,4 @@ public:
 
 VARIANT_ENUM_CAST(LineEdit::MenuItems);
 
-#endif
+#endif // LINE_EDIT_H
diff --git a/scene/gui/link_button.h b/scene/gui/link_button.h
index 54a31f06ce..12a6a7618f 100644
--- a/scene/gui/link_button.h
+++ b/scene/gui/link_button.h
@@ -28,8 +28,8 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#ifndef LINKBUTTON_H
-#define LINKBUTTON_H
+#ifndef LINK_BUTTON_H
+#define LINK_BUTTON_H
 
 #include "scene/gui/base_button.h"
 #include "scene/resources/text_line.h"
@@ -86,4 +86,4 @@ public:
 
 VARIANT_ENUM_CAST(LinkButton::UnderlineMode);
 
-#endif // LINKBUTTON_H
+#endif // LINK_BUTTON_H
diff --git a/scene/gui/menu_button.h b/scene/gui/menu_button.h
index 0a6b46c796..97c0d21f1e 100644
--- a/scene/gui/menu_button.h
+++ b/scene/gui/menu_button.h
@@ -71,4 +71,4 @@ public:
 	~MenuButton();
 };
 
-#endif
+#endif // MENU_BUTTON_H
diff --git a/scene/gui/option_button.h b/scene/gui/option_button.h
index 7896132626..5665296699 100644
--- a/scene/gui/option_button.h
+++ b/scene/gui/option_button.h
@@ -105,4 +105,4 @@ public:
 	~OptionButton();
 };
 
-#endif
+#endif // OPTION_BUTTON_H
diff --git a/scene/gui/popup.h b/scene/gui/popup.h
index b53c8be50f..70eb8722d0 100644
--- a/scene/gui/popup.h
+++ b/scene/gui/popup.h
@@ -79,4 +79,4 @@ public:
 	PopupPanel();
 };
 
-#endif
+#endif // POPUP_H
diff --git a/scene/gui/popup_menu.h b/scene/gui/popup_menu.h
index daa38b0e6d..e203793c2e 100644
--- a/scene/gui/popup_menu.h
+++ b/scene/gui/popup_menu.h
@@ -260,4 +260,4 @@ public:
 	~PopupMenu();
 };
 
-#endif
+#endif // POPUP_MENU_H
diff --git a/scene/gui/range.h b/scene/gui/range.h
index 1274821bd1..87bd0d88af 100644
--- a/scene/gui/range.h
+++ b/scene/gui/range.h
@@ -106,4 +106,4 @@ public:
 	~Range();
 };
 
-#endif
+#endif // RANGE_H
diff --git a/scene/gui/scroll_bar.h b/scene/gui/scroll_bar.h
index 651edd1a74..1823f86a67 100644
--- a/scene/gui/scroll_bar.h
+++ b/scene/gui/scroll_bar.h
@@ -128,4 +128,4 @@ public:
 			ScrollBar(VERTICAL) { set_h_size_flags(0); }
 };
 
-#endif
+#endif // SCROLL_BAR_H
diff --git a/scene/gui/scroll_container.h b/scene/gui/scroll_container.h
index b9fcf64db6..7c8690538d 100644
--- a/scene/gui/scroll_container.h
+++ b/scene/gui/scroll_container.h
@@ -116,4 +116,4 @@ public:
 
 VARIANT_ENUM_CAST(ScrollContainer::ScrollMode);
 
-#endif
+#endif // SCROLL_CONTAINER_H
diff --git a/scene/gui/separator.h b/scene/gui/separator.h
index 1621bb3351..e6578a4d04 100644
--- a/scene/gui/separator.h
+++ b/scene/gui/separator.h
@@ -60,4 +60,4 @@ public:
 	HSeparator();
 };
 
-#endif
+#endif // SEPARATOR_H
diff --git a/scene/gui/subviewport_container.h b/scene/gui/subviewport_container.h
index 55b7802aa4..5b488fb79e 100644
--- a/scene/gui/subviewport_container.h
+++ b/scene/gui/subviewport_container.h
@@ -28,8 +28,8 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#ifndef VIEWPORTCONTAINER_H
-#define VIEWPORTCONTAINER_H
+#ifndef SUBVIEWPORT_CONTAINER_H
+#define SUBVIEWPORT_CONTAINER_H
 
 #include "scene/gui/container.h"
 
@@ -63,4 +63,4 @@ public:
 	SubViewportContainer();
 };
 
-#endif // VIEWPORTCONTAINER_H
+#endif // SUBVIEWPORT_CONTAINER_H
diff --git a/scene/gui/texture_button.h b/scene/gui/texture_button.h
index 5762949acd..9f6f7c1515 100644
--- a/scene/gui/texture_button.h
+++ b/scene/gui/texture_button.h
@@ -101,4 +101,5 @@ public:
 };
 
 VARIANT_ENUM_CAST(TextureButton::StretchMode);
+
 #endif // TEXTURE_BUTTON_H
diff --git a/scene/gui/tree.h b/scene/gui/tree.h
index 1690e7ac57..f0819e2980 100644
--- a/scene/gui/tree.h
+++ b/scene/gui/tree.h
@@ -719,4 +719,5 @@ public:
 
 VARIANT_ENUM_CAST(Tree::SelectMode);
 VARIANT_ENUM_CAST(Tree::DropModeFlags);
-#endif
+
+#endif // TREE_H