QMK Userspace (#22222)

Co-authored-by: Duncan Sutherland <dunk2k_2000@hotmail.com>

lib/python/qmk/constants.py

@@ -4,9 +4,17 @@ from os import environ
 from datetime import date
 from pathlib import Path
 
+from qmk.userspace import detect_qmk_userspace
+
 # The root of the qmk_firmware tree.
 QMK_FIRMWARE = Path.cwd()
 
+# The detected userspace tree
+QMK_USERSPACE = detect_qmk_userspace()
+
+# Whether or not we have a separate userspace directory
+HAS_QMK_USERSPACE = True if QMK_USERSPACE is not None else False
+
 # Upstream repo url
 QMK_FIRMWARE_UPSTREAM = 'qmk/qmk_firmware'