Add `qmk ci-validate-aliases` (#22205)

2 files changed, 46 insertions, 0 deletions

diff --git a/lib/python/qmk/cli/ci/__init__.py b/lib/python/qmk/cli/ci/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/lib/python/qmk/cli/ci/__init__.py
diff --git a/lib/python/qmk/cli/ci/validate_aliases.py b/lib/python/qmk/cli/ci/validate_aliases.py
new file mode 100644
index 0000000000..a205d03cff
--- /dev/null
+++ b/lib/python/qmk/cli/ci/validate_aliases.py
@@ -0,0 +1,46 @@
+"""Validates the list of keyboard aliases.
+"""
+from pathlib import Path
+
+from milc import cli
+
+from qmk.json_schema import json_load
+from qmk.keyboard import resolve_keyboard, keyboard_folder
+
+
+def _safe_keyboard_folder(target):
+    try:
+        return keyboard_folder(target)  # throws ValueError if it's invalid
+    except Exception:
+        return None
+
+
+def _target_keyboard_exists(target):
+    # If there's no target, then we can't build it.
+    if not target:
+        return False
+
+    # If the target directory existed but there was no rules.mk or rules.mk was incorrectly parsed, then we can't build it.
+    if not resolve_keyboard(target):
+        return False
+
+    # If the target directory exists but it itself has an invalid alias or invalid rules.mk, then we can't build it either.
+    if not _safe_keyboard_folder(target):
+        return False
+
+    # As far as we can tell, we can build it!
+    return True
+
+
+@cli.subcommand('Validates the list of keyboard aliases.', hidden=True)
+def ci_validate_aliases(cli):
+    aliases = json_load(Path('data/mappings/keyboard_aliases.hjson'))
+
+    success = True
+    for alias in aliases.keys():
+        target = aliases[alias].get('target', None)
+        if not _target_keyboard_exists(target):
+            cli.log.error(f'Keyboard alias {alias} has a target that doesn\'t exist: {target}')
+            success = False
+
+    return success