[test] Fix propagating HOME envvar to unittests

mgorny · mgorny · commit 7343e24f78c8 · 2018-12-31T13:48:12.000Z
Propagate HOME environment variable to unittests. This is necessary to fix test failures resulting from pw_home pointing to a non-existing directory while being overriden with HOME. Apparently Gentoo users hit this sometimes when they override build directory for Portage. Original bug report: https://bugs.gentoo.org/674088 Differential Revision: https://reviews.llvm.org/D56162 llvm-svn: 350175
diff --git a/llvm/test/Unit/lit.cfg.py b/llvm/test/Unit/lit.cfg.py
@@ -31,6 +31,11 @@
 if 'TEMP' in os.environ:
     config.environment['TEMP'] = os.environ['TEMP']
 
+# Propagate HOME as it can be used to override incorrect homedir in passwd
+# that causes the tests to fail.
+if 'HOME' in os.environ:
+    config.environment['HOME'] = os.environ['HOME']
+
 # Propagate path to symbolizer for ASan/MSan.
 for symbolizer in ['ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH']:
     if symbolizer in os.environ:
