[OE-core] [OE-Core][PATCH v2] image: Use ${COREBASE}/meta for timestamp, fallback to bitbake.conf

[Alex Kiernan]

To handle the case where ${COREBASE} isn't the git directory, avoid
erroring out when the git command fails. If we don't have a timestamp
after this, fall back to the timestamp from conf/bitbake.conf.

Signed-off-by: Alex Kiernan <alex.kiernan at gmail.com>
---

Changes in v2:
- Revert to original behaviour and use ${COREBASE} as per Richard Purdie's
  advice

 meta/classes/image.bbclass | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index adc50c9..48961b6 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -651,7 +651,10 @@ POPULATE_SDK_PRE_TARGET_COMMAND += "${@bb.utils.contains('DISTRO_FEATURES', 'usr
 reproducible_final_image_task () {
     if [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then
         if [ "$REPRODUCIBLE_TIMESTAMP_ROOTFS" = "" ]; then
-            REPRODUCIBLE_TIMESTAMP_ROOTFS=`git -C "${COREBASE}" log -1 --pretty=%ct`
+            REPRODUCIBLE_TIMESTAMP_ROOTFS=`git -C "${COREBASE}" log -1 --pretty=%ct 2>/dev/null` || true
+            if [ "${REPRODUCIBLE_TIMESTAMP_ROOTFS}" = "" ]; then
+                REPRODUCIBLE_TIMESTAMP_ROOTFS=`stat -c%Y ${@bb.utils.which(d.getVar("BBPATH"), "conf/bitbake.conf")}`
+            fi
         fi
         # Set mtime of all files to a reproducible value
         bbnote "reproducible_final_image_task: mtime set to $REPRODUCIBLE_TIMESTAMP_ROOTFS"
-- 
2.7.4