[PATCH] ci: add address and undefined sanitizer tasks

[Junio C Hamano <gitster@pobox.com>]

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 * I've been running my local post-integration-pre-pushout tests of
   'seen' with these two sanitizer tests, which has saved me from a
   few potential embarrassments early.  As it takes a lot extra time
   to run these locally, I am aiming to burden contributors who run
   their due diligence "before sending the patch" checks using the
   GitHub Actions CI ;-).

   The way the patch adds jobs to CI just imitates how -leaks one is
   defined.

 .github/workflows/main.yml | 6 ++++++
 ci/lib.sh                  | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 831f4df56c..2f80da7cfb 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -251,6 +251,12 @@ jobs:
           - jobname: linux-leaks
             cc: gcc
             pool: ubuntu-latest
+          - jobname: linux-address
+            cc: gcc
+            pool: ubuntu-latest
+          - jobname: linux-undefined
+            cc: gcc
+            pool: ubuntu-latest
     env:
       CC: ${{matrix.vector.cc}}
       CC_PACKAGE: ${{matrix.vector.cc_package}}
diff --git a/ci/lib.sh b/ci/lib.sh
index 1b0cc2b57d..678edd5abb 100755
--- a/ci/lib.sh
+++ b/ci/lib.sh
@@ -278,6 +278,9 @@ linux-leaks)
 	export GIT_TEST_PASSING_SANITIZE_LEAK=true
 	export GIT_TEST_SANITIZE_LEAK_LOG=true
 	;;
+linux-address | linux-undefined)
+	export SANITIZE=${jobname#linux-}
+	;;
 esac
 
 MAKEFLAGS="$MAKEFLAGS CC=${CC:-cc}"
-- 
2.38.0-167-gf9a88ca9e9