Promote label with newlines to lint error (#17347)

data/schemas/keyboard.jsonschema

@@ -145,7 +145,10 @@
                             "type": "object",
                             "additionalProperties": false,
                             "properties": {
-                                "label": {"type": "string"},
+                                "label": {
+                                    "type": "string",
+                                    "pattern": "^[^\\n]*$"
+                                },
                                 "matrix": {
                                     "type": "array",
                                     "minItems": 2,

keyboards/sendyyeah/75pixels/info.json

@@ -31,10 +31,10 @@
                 {"label": "I", "x": 8, "y": 1},
                 {"label": "O", "x": 9, "y": 1},
                 {"label": "P", "x": 10, "y": 1},
-                {"label": "|\n\\", "x": 11, "y": 1},
-                {"label": "7\nHome", "x": 12, "y": 1},
-                {"label": "8\nUp", "x": 13, "y": 1},
-                {"label": "9\nPgUp", "x": 14, "y": 1},
+                {"label": "|", "x": 11, "y": 1},
+                {"label": "7", "x": 12, "y": 1},
+                {"label": "8", "x": 13, "y": 1},
+                {"label": "9", "x": 14, "y": 1},
                 {"label": "Caps", "x": 0, "y": 2},
                 {"label": "A", "x": 1, "y": 2},
                 {"label": "S", "x": 2, "y": 2},
@@ -47,9 +47,9 @@
                 {"label": "L", "x": 9, "y": 2},
                 {"label": ":", "x": 10, "y": 2},
                 {"label": "Enter", "x": 11, "y": 2},
-                {"label": "4\nLeft", "x": 12, "y": 2},
+                {"label": "4", "x": 12, "y": 2},
                 {"label": "5", "x": 13, "y": 2},
-                {"label": "6\nRight", "x": 14, "y": 2},
+                {"label": "6", "x": 14, "y": 2},
                 {"label": "Shift", "x": 0, "y": 3},
                 {"label": "Z", "x": 1, "y": 3},
                 {"label": "X", "x": 2, "y": 3},
@@ -58,13 +58,13 @@
                 {"label": "B", "x": 5, "y": 3},
                 {"label": "N", "x": 6, "y": 3},
                 {"label": "M", "x": 7, "y": 3},
-                {"label": "<\n,", "x": 8, "y": 3},
-                {"label": ">\n.", "x": 9, "y": 3},
-                {"label": "?\n/", "x": 10, "y": 3},
+                {"label": "<", "x": 8, "y": 3},
+                {"label": ">", "x": 9, "y": 3},
+                {"label": "?", "x": 10, "y": 3},
                 {"label": "Shift", "x": 11, "y": 3},
-                {"label": "1\nEnd", "x": 12, "y": 3},
-                {"label": "2\nDown", "x": 13, "y": 3},
-                {"label": "3\nPgDn", "x": 14, "y": 3},
+                {"label": "1", "x": 12, "y": 3},
+                {"label": "2", "x": 13, "y": 3},
+                {"label": "3", "x": 14, "y": 3},
                 {"label": "Ctrl", "x": 0, "y": 4},
                 {"label": "Win", "x": 1, "y": 4},
                 {"label": "Alt", "x": 2, "y": 4},
@@ -77,8 +77,8 @@
                 {"label": "Win", "x": 9, "y": 4},
                 {"label": "Menu", "x": 10, "y": 4},
                 {"label": "Ctrl", "x": 11, "y": 4},
-                {"label": "0\nIns", "x": 12, "y": 4},
-                {"label": ".\nDel", "x": 13, "y": 4},
+                {"label": "0", "x": 12, "y": 4},
+                {"label": ".", "x": 13, "y": 4},
                 {"label": "Enter", "x": 14, "y": 4}
             ]
         }

lib/python/qmk/info.py

@@ -26,13 +26,6 @@ def _valid_community_layout(layout):
     return (Path('layouts/default') / layout).exists()
 
 
-def _remove_newlines_from_labels(layouts):
-    for layout_name, layout_json in layouts.items():
-        for key in layout_json['layout']:
-            if '\n' in key['label']:
-                key['label'] = key['label'].split('\n')[0]
-
-
 def info_json(keyboard):
     """Generate the info.json data for a specific keyboard.
     """
@@ -111,9 +104,6 @@ def info_json(keyboard):
     # Check that the reported matrix size is consistent with the actual matrix size
     _check_matrix(info_data)
 
-    # Remove newline characters from layout labels
-    _remove_newlines_from_labels(layouts)
-
     return info_data