Apply SOURCE_DATE_EPOCH to newly generated files and create a log

scripts/build/binary

@@ -68,6 +68,9 @@ if [ "${LB_BUILD_WITH_CHROOT}" != "true" ]; then
 	lb chroot_prep install "${CHROOT_PREP_MOUNTS}" "${@}"
 fi
 
+# Apply SOURCE_DATE_EPOCH to all modified and created files
+find binary -newermt "$(date -d@${SOURCE_DATE_EPOCH} '+%Y-%m-%d %H:%M:%S')" -printf "%y %p\n" -exec touch '{}' -d@${SOURCE_DATE_EPOCH} --no-dereference ';' > binary.modified_timestamps
+
 # Building images
 lb binary_iso "${@}"
 lb binary_onie "${@}"

scripts/build/binary_iso

@@ -176,6 +176,8 @@ mkdir -p binary/.disk
 cat <<-EOF >binary/.disk/mkisofs
 xorriso -as mkisofs ${XORRISO_OPTIONS} -o ${IMAGE} binary
 EOF
+# Set the timestamp
+find binary/.disk -newermt "$(date -d@${SOURCE_DATE_EPOCH} '+%Y-%m-%d %H:%M:%S')" -printf "%y %p\n" -exec touch '{}' -d@${SOURCE_DATE_EPOCH} ';' >> binary.modified_timestamps
 
 case "${LB_BUILD_WITH_CHROOT}" in
 	true)

scripts/build/clean

@@ -180,6 +180,7 @@ if [ "${RM_BINARY}" = "true" ]; then
 	rm -f ${LB_IMAGE_NAME}*.iso-ONIE.bin
 	rm -f MD5SUMS SHA1SUMS SHA256SUMS SHA512SUMS
 	rm -f md5sum.txt sha1sum.txt sha256sum.txt sha512sum.txt
+	rm -f binary.modified_timestamps
 
 	rm -rf binary
 	rm -rf tftpboot