Tests, docs: Use sanitizer options from environment too.

Don't overwrite environment variables that may
contain options like suppression files, symboliser etc.
It's similar to rBa181b156399a13fa429159112e30c8005d5e8a59
and rBA589d13408a60cbec34a8bc3cc798c586043743ae .
For Blender Add-ons repo, see the equivalent in D9816.

Reviewed By: Blendify
Differential Revision: https://developer.blender.org/D9815

GNUmakefile

@@ -520,7 +520,7 @@ format: .FORCE
 
 # Simple version of ./doc/python_api/sphinx_doc_gen.sh with no PDF generation.
 doc_py: .FORCE
-	ASAN_OPTIONS=halt_on_error=0 \
+	ASAN_OPTIONS=halt_on_error=0:${ASAN_OPTIONS} \
 	$(BLENDER_BIN) --background -noaudio --factory-startup \
 		--python doc/python_api/sphinx_doc_gen.py
 	sphinx-build -b html -j $(NPROCS) doc/python_api/sphinx-in doc/python_api/sphinx-out

build_files/cmake/Modules/GTestTesting.cmake

@@ -99,7 +99,9 @@ macro(BLENDER_SRC_GTEST_EX)
 
       # Don't fail tests on leaks since these often happen in external libraries
       # that we can't fix.
-      set_tests_properties(${TARGET_NAME} PROPERTIES ENVIRONMENT LSAN_OPTIONS=exitcode=0)
+      set_tests_properties(${TARGET_NAME} PROPERTIES
+        ENVIRONMENT LSAN_OPTIONS=exitcode=0:$ENV{LSAN_OPTIONS}
+      )
     endif()
     if(WIN32)
       set_target_properties(${TARGET_NAME} PROPERTIES VS_GLOBAL_VcpkgEnabled "false")

doc/manpage/blender.1.py

@@ -52,10 +52,11 @@ outfilename = sys.argv[2]
 
 cmd = [blender_bin, "--help"]
 print("  executing:", " ".join(cmd))
+ASAN_OPTIONS = "exitcode=0:" + os.environ.get("ASAN_OPTIONS", "")
 blender_help = subprocess.run(
-    cmd, env={"ASAN_OPTIONS": "exitcode=0"}, check=True, stdout=subprocess.PIPE).stdout.decode(encoding="utf-8")
+    cmd, env={"ASAN_OPTIONS": ASAN_OPTIONS}, check=True, stdout=subprocess.PIPE).stdout.decode(encoding="utf-8")
 blender_version = subprocess.run(
-    [blender_bin, "--version"], env={"ASAN_OPTIONS": "exitcode=0"}, check=True, stdout=subprocess.PIPE).stdout.decode(encoding="utf-8").strip()
+    [blender_bin, "--version"], env={"ASAN_OPTIONS": ASAN_OPTIONS}, check=True, stdout=subprocess.PIPE).stdout.decode(encoding="utf-8").strip()
 blender_version, blender_date = (blender_version.split("build") + [None, None])[0:2]
 blender_version = blender_version.rstrip().partition(" ")[2]  # remove 'Blender' prefix.
 if blender_date is None:

doc/python_api/sphinx_doc_gen.sh

@@ -55,7 +55,7 @@ if $DO_EXE_BLENDER ; then
   # Don't delete existing docs, now partial updates are used for quick builds.
   #
   # Disable ASAN error halt since it results in nonzero exit code on any minor issue.
-  ASAN_OPTIONS=halt_on_error=0 \
+  ASAN_OPTIONS=halt_on_error=0:${ASAN_OPTIONS} \
   $BLENDER_BIN \
     --background \
     -noaudio \