From 7adf346d127d507d46f907b13c758c8f7bb7d038 Mon Sep 17 00:00:00 2001
From: Simon Heather <32168619+X-Guardian@users.noreply.github.com>
Date: Fri, 20 Jan 2023 22:51:09 +0000
Subject: [PATCH] [Resolves #1267] Improve the Stack Config Jinja Error Message
 to include the Stack Name (#1269)

Improves the stack config Jinja error message to include the stack name.

### Original Error Message

```
'foo2' is undefined
```

### New Error Message

```
dev/stack.yaml - 'foo2' is undefined
```
---
 sceptre/config/reader.py | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/sceptre/config/reader.py b/sceptre/config/reader.py
index c225fc2c8..2bd664263 100644
--- a/sceptre/config/reader.py
+++ b/sceptre/config/reader.py
@@ -446,11 +446,17 @@ def _render(self, directory_path, basename, stack_group_config):
                 ) from err
 
             self.templating_vars.update(stack_group_config)
-            rendered_template = template.render(
-                self.templating_vars,
-                command_path=self.context.command_path.split(path.sep),
-                environment_variable=environ,
-            )
+
+            try:
+                rendered_template = template.render(
+                    self.templating_vars,
+                    command_path=self.context.command_path.split(path.sep),
+                    environment_variable=environ,
+                )
+            except Exception as err:
+                raise SceptreException(
+                    f"{Path(directory_path, basename).as_posix()} - {err}"
+                ) from err
 
             try:
                 config = yaml.safe_load(rendered_template)