[Buildroot] [PATCH 1/2] boot/uboot: add a setlocalversion rsync hook when overriding srcdir

[Charles Hardin]

From: Charles Hardin <ckhardin at gmail.com>

During development the override srcdir is often used with a local
git repo and branch. To help track the builds used in those flows
it is useful to have the scm version available as part of the info.
With this hook, the auto generated version include will include the
example.

    #define PLAIN_VERSION "2018.03-01358-gbda75d6a8b"
    #define U_BOOT_VERSION "U-Boot " PLAIN_VERSION

Signed-off-by: Charles Hardin <ckhardin at gmail.com>
---
 boot/uboot/uboot.mk | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/boot/uboot/uboot.mk b/boot/uboot/uboot.mk
index 4eae8e95c3..e340d2cf11 100644
--- a/boot/uboot/uboot.mk
+++ b/boot/uboot/uboot.mk
@@ -40,6 +40,18 @@ UBOOT_SITE = https://ftp.denx.de/pub/u-boot
 UBOOT_SOURCE = u-boot-$(UBOOT_VERSION).tar.bz2
 endif
 
+ifneq ($(UBOOT_OVERRIDE_SRCDIR),)
+define UBOOT_OVERRIDE_SRCDIR_SETLOCALVERSION
+	(cd $(@D); \
+		if [ -x ./scripts/setlocalversion ]; then \
+			./scripts/setlocalversion --save-scmversion \
+				$(abspath $(UBOOT_OVERRIDE_SRCDIR)) ||:; \
+		fi)
+endef
+
+UBOOT_POST_RSYNC_HOOKS += UBOOT_OVERRIDE_SRCDIR_SETLOCALVERSION
+endif
+
 ifeq ($(BR2_TARGET_UBOOT)$(BR2_TARGET_UBOOT_LATEST_VERSION),y)
 BR_NO_CHECK_HASH_FOR += $(UBOOT_SOURCE)
 endif
-- 
2.37.1 (Apple Git-137.1)