From 7bfa909c0090248ea70b4185288275eb58ddaff7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jelmer=20Vernoo=C4=B3?= <jelmer@jelmer.uk>
Date: Wed, 10 Feb 2021 02:34:57 +0000
Subject: [PATCH] Raise error when no cwd is set.

---
 ognibuild/session/schroot.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ognibuild/session/schroot.py b/ognibuild/session/schroot.py
index ac979b4..1b1b645 100644
--- a/ognibuild/session/schroot.py
+++ b/ognibuild/session/schroot.py
@@ -153,6 +153,8 @@ class SchrootSession(Session):
         self.check_call(["chown", user, home], cwd="/", user="root")
 
     def _fullpath(self, path: str) -> str:
+        if self._cwd is None:
+            raise ValueError('no cwd set')
         return os.path.join(self.location, os.path.join(self._cwd, path).lstrip("/"))
 
     def exists(self, path: str) -> bool: