From: Joerg Behrmann <behrmann@physik.fu-berlin.de>
Date: Wed, 27 Sep 2023 10:46:32 +0000 (+0200)
Subject: json: produce a known error when parsing JSON
X-Git-Tag: v18~13^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac6803cdea8111815291e055a0db6aa8896df10d;p=thirdparty%2Fmkosi.git

json: produce a known error when parsing JSON
---

diff --git a/mkosi/config.py b/mkosi/config.py
index e1df2b153..1a4202dee 100644
--- a/mkosi/config.py
+++ b/mkosi/config.py
@@ -2802,7 +2802,10 @@ def json_type_transformer(refcls: Union[type[MkosiArgs], type[MkosiConfig]]) ->
         assert fieldtype is not None
         transformer = cast(Optional[Callable[[str, type], Any]], transformers.get(fieldtype.type))
         if transformer is not None:
-            return transformer(val, fieldtype.type)
+            try:
+                return transformer(val, fieldtype.type)
+            except (ValueError, IndexError, AssertionError) as e:
+                raise ValueError(f"Unable to parse {val:r} for attribute {key:r} for {refcls.__name__}") from e
 
         return val