From 59f9c4ca9feb2c070df508c7196f06a6e87307b4 Mon Sep 17 00:00:00 2001
From: =?utf8?q?J=C3=A9r=C3=B4me=20Pouiller?= <jezz@sysmic.org>
Date: Wed, 23 Nov 2016 13:58:43 +0100
Subject: [PATCH] fs/tar: make results reproducible
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In order to make tar images reproducible, force files order in tarball.

This work was sponsored by `BA Robotic Systems'.

Signed-off-by: Jérôme Pouiller <jezz@sysmic.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
 fs/tar/tar.mk | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/tar/tar.mk b/fs/tar/tar.mk
index 11c69c5a8b..b14c977d76 100644
--- a/fs/tar/tar.mk
+++ b/fs/tar/tar.mk
@@ -7,7 +7,8 @@
 TAR_OPTS := $(call qstrip,$(BR2_TARGET_ROOTFS_TAR_OPTIONS))
 
 define ROOTFS_TAR_CMD
-	tar $(TAR_OPTS) -cf $@ --numeric-owner -C $(TARGET_DIR) .
+	(cd $(TARGET_DIR); find -print0 | LC_ALL=C sort -z | \
+		tar $(TAR_OPTS) -cf $@ --null -T - --no-recursion --numeric-owner)
 endef
 
 $(eval $(call ROOTFS_TARGET,tar))
-- 
2.30.2