use python to find pin_*.h files

Makefile

@@ -8,9 +8,8 @@ UNIT_TEST_CONFIG ?= default
 ifeq ($(OS),Windows_NT)
 	# Windows: use `where` – fall back through the three common names
 	PYTHON := $(shell which python 2>nul || which python3 2>nul || which py 2>nul)
-	# Windows: Use cmd tools to find pins files
-	PINS_RAW := $(shell cmd //c "dir /s /b Marlin\src\pins\*.h 2>nul | findstr /r ".*Marlin\\\\src\\\\pins\\\\.*\\\\pins_.*\.h"")
-	PINS := $(subst \,/,$(PINS_RAW))
+	# Windows: Use Python script to find pins files
+	PINS := $(shell $(PYTHON) $(SCRIPTS_DIR)/find.py Marlin/src/pins -mindepth 2 -name 'pins_*.h')
 else
 	# POSIX: use `command -v` – prefer python3 over python
 	PYTHON := $(shell command -v python3 2>/dev/null || command -v python 2>/dev/null)

buildroot/share/scripts/find.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+# This is a cut-down version of the Linux 'find' command, implemented in Python for Marlin build scripts.
+import sys
+import os
+import fnmatch
+
+def find_files(root, mindepth, pattern):
+    results = []
+    root = os.path.normpath(root)
+    for dirpath, dirnames, filenames in os.walk(root):
+        for filename in filenames:
+            if fnmatch.fnmatch(filename, pattern):
+                full_path = os.path.join(dirpath, filename)
+                rel_path = os.path.relpath(full_path, root)
+                # mindepth: number of path components in rel_path >= mindepth
+                if rel_path.count(os.sep) + 1 >= mindepth:
+                    results.append(full_path)
+    return results
+
+if __name__ == "__main__":
+    if len(sys.argv) != 6 or sys.argv[2] != '-mindepth' or sys.argv[4] != '-name':
+        print("Usage: find.py <dir> -mindepth <num> -name <pattern>", file=sys.stderr)
+        sys.exit(1)
+    root = sys.argv[1]
+    mindepth = int(sys.argv[3])
+    pattern = sys.argv[5]
+    files = find_files(root, mindepth, pattern)
+    for f in files:
+        print(f.replace('\\', '/'))