From 53632b4b8245a6dd67c95015d52d1f4c562b14ed Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Mon, 21 Oct 2024 11:50:05 +0100
Subject: [PATCH] appliance: Use stable owner, group and mtime in appliance
 tarballs

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2320025
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
---
 appliance/Makefile.am | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/appliance/Makefile.am b/appliance/Makefile.am
index 8cb9bd1f..7edc90e6 100644
--- a/appliance/Makefile.am
+++ b/appliance/Makefile.am
@@ -113,12 +113,17 @@ packagelist: packagelist.in Makefile guestfsd.deps
 	cmp -s $@ $@-t || mv $@-t $@
 	rm -f $@-t
 
+# Use stable times and owner/group (RHBZ#2320025).
+TAR_COMMAND := tar -z \
+	--owner=0 --group=0 \
+	$${SOURCE_DATE_EPOCH:+--mtime=@"$$SOURCE_DATE_EPOCH"}
+
 supermin.d/daemon.tar.gz: ../daemon/guestfsd
 	rm -f $@ $@-t
 	rm -rf tmp-d
 	mkdir -p tmp-d$(DAEMON_SUPERMIN_DIR) tmp-d/etc
 	ln ../daemon/guestfsd tmp-d$(DAEMON_SUPERMIN_DIR)/guestfsd
-	( cd tmp-d && tar zcf - * ) > $@-t
+	( cd tmp-d && $(TAR_COMMAND) -cf - * ) > $@-t
 	rm -r tmp-d
 	mv $@-t $@
 
@@ -139,7 +144,7 @@ supermin.d/hostfiles: hostfiles.in Makefile
 
 supermin.d/init.tar.gz: init
 	rm -f $@ $@-t
-	( cd $(srcdir) && tar zcf - init ) > $@-t
+	( cd $(srcdir) && $(TAR_COMMAND) -cf - init ) > $@-t
 	mv $@-t $@
 
 # We should put this file in /lib/udev/rules.d, but put it in /etc so
@@ -149,7 +154,7 @@ supermin.d/udev-rules.tar.gz: 99-guestfs-serial.rules
 	rm -rf tmp-u
 	mkdir -p tmp-u/etc/udev/rules.d
 	for f in $^; do ln $$f tmp-u/etc/udev/rules.d/$$(basename $$f); done
-	( cd tmp-u && tar zcf - etc ) > $@-t
+	( cd tmp-u && $(TAR_COMMAND) -cf - etc ) > $@-t
 	rm -r tmp-u
 	mv $@-t $@