From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 12 Dec 2016 12:12:43 +0000 (+0100)
Subject: download.mk: improve download tarball reproducibility
X-Git-Tag: v17.01.0-rc1~559
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=1b9a39c528bcad4f66821e15f8c2162075a40191;p=openwrt%2Fstaging%2Fxback.git

download.mk: improve download tarball reproducibility

Store only numeric user/group id. Group 0 is 'root' on linux and 'wheel' on
BSD and Mac OS X.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/include/download.mk b/include/download.mk
index 49d2bf3bac..3c6b4a20cf 100644
--- a/include/download.mk
+++ b/include/download.mk
@@ -41,7 +41,7 @@ define dl_pack
 	$(if $(dl_pack/$(call ext,$(1))),$(dl_pack/$(call ext,$(1))),$(dl_pack/unknown))
 endef
 define dl_tar_pack
-	$(TAR) --owner=0 --group=0 --sort=name $$$${TAR_TIMESTAMP:+--mtime="$$$$TAR_TIMESTAMP"} -c $(2) | $(call dl_pack,$(1))
+	$(TAR) --numeric-owner --owner=0 --group=0 --sort=name $$$${TAR_TIMESTAMP:+--mtime="$$$$TAR_TIMESTAMP"} -c $(2) | $(call dl_pack,$(1))
 endef
 
 define DownloadMethod/unknown