get SOURCE_DATE_EPOCH from git log time

start of work towards reproducible builds
2021-05-11 20:36:23 +01:00 · 2021-05-11 20:36:23 +01:00 · d5313fab26
parent d873f2dd73
commit d5313fab26
1 changed files with 3 additions and 0 deletions
--- a/build-package.sh
+++ b/build-package.sh
@ -3,6 +3,9 @@

 set -e -o pipefail -u

+SOURCE_DATE_EPOCH=$(git log -1 --pretty=%ct)
+export SOURCE_DATE_EPOCH
+
 : "${TMPDIR:=/tmp}"
 export TMPDIR