[PATCH] Explicitly unset SOURCE_DATE_EPOCH before running fs tests

[Steve McIntyre]

In some filesystem utils like mksquashfs, they will silently change
behaviour and cause timestamps to unexpectedly change. Build
environments like Debian's set SOURCE_DATE_EPOCH in the environment,
so remove it. Reproducible builds are good and useful for shipped
artifacts, but this causes build-time tests to fail.

Signed-off-by: Steve McIntyre <steve@einval.com>
---
 tests/util/grub-fs-tester.in | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tests/util/grub-fs-tester.in b/tests/util/grub-fs-tester.in
index 43f6175c3..6d70967e6 100644
--- a/tests/util/grub-fs-tester.in
+++ b/tests/util/grub-fs-tester.in
@@ -5,6 +5,9 @@ export BLKID_FILE=/dev/null
 
 fs="$1"
 
+# We can't have this set, or filesystem tests will fail
+unset SOURCE_DATE_EPOCH
+
 GRUBFSTEST="@builddir@/grub-fstest"
 
 tempdir=`mktemp -d "${TMPDIR:-/tmp}/${0##*/}.$(date 
'+%Y%m%d%H%M%S%N').${fs}.XXX"` ||
-- 
2.30.2