build system: have tar use $SOURCE_DATE_EPOCH for --mtime

[openwrt/staging/mkresin.git] / include / image.mk

diff --git a/include/image.mk b/include/image.mk
index 4eee4adfafe74c5499b68dce5fe2ce90f3a1ac42..8f81861fd08de08d14d350743ab90da47af747e5 100644 (file)
--- a/include/image.mk
+++ b/include/image.mk
@@ -186,7 +186,8 @@ ifneq ($(CONFIG_NAND_SUPPORT),)
        [ -z "$(2)" ] || $(CP) "$(KDIR)/root.$(2)" "$(KDIR_TMP)/sysupgrade-$(1)/root"
        [ -z "$(3)" ] || $(CP) "$(3)" "$(KDIR_TMP)/sysupgrade-$(1)/kernel"
        (cd "$(KDIR_TMP)"; $(TAR) cvf \
-               "$(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2)-sysupgrade.tar" sysupgrade-$(1))
+               "$(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2)-sysupgrade.tar" sysupgrade-$(1) \
+                       $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)")
    endef
 
 # $(1) board name
@@ -248,7 +249,10 @@ define Image/mkfs/cpiogz
 endef
 
 define Image/mkfs/targz
-       $(TAR) -czpf $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-$(PROFILE_SANITIZED))-rootfs.tar.gz --numeric-owner --owner=0 --group=0 --sort=name -C $(TARGET_DIR)/ .
+       $(TAR) -czpf $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-$(PROFILE_SANITIZED))-rootfs.tar.gz \
+               --numeric-owner --owner=0 --group=0 --sort=name \
+               $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
+               -C $(TARGET_DIR)/ .
 endef
 
 E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024*1024)))