From e62ae024ae099b6c6a42ea4ebe806272e1a2fb52 Mon Sep 17 00:00:00 2001
From: Denis Fortin <denis.fortin@vitec.com>
Date: Wed, 27 Jul 2022 17:56:01 +0200
Subject: Handle garbage in environment more gracefully when setting vsenv

Environment line may not contain '=' and thus fail to decompose into a
key/value pair.
---
 mesonbuild/mesonlib/vsenv.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/mesonbuild/mesonlib/vsenv.py b/mesonbuild/mesonlib/vsenv.py
index 0d37765..4eab428 100644
--- a/mesonbuild/mesonlib/vsenv.py
+++ b/mesonbuild/mesonlib/vsenv.py
@@ -96,8 +96,13 @@ def _setup_vsenv(force: bool) -> bool:
             continue
         if not bat_line:
             continue
-        k, v = bat_line.split('=', 1)
-        os.environ[k] = v
+        try:
+            k, v = bat_line.split('=', 1)
+        except ValueError:
+            # there is no "=", ignore junk data
+            pass
+        else:
+            os.environ[k] = v
     return True
 
 def setup_vsenv(force: bool = False) -> bool:
-- 
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