From dd7925397b84c2a327cd4594edba9f7ca5acef61 Mon Sep 17 00:00:00 2001 From: Hongxu Jia Date: Fri, 26 Sep 2025 14:02:23 +0800 Subject: [PATCH] Honor the SOURCE_DATE_EPOCH variable Implement the SOURCE_DATE_EPOCH specification[1] for reproducible builds. If SOURCE_DATE_EPOCH is set, use it as timestamp instead of the current time. [1] https://reproducible-builds.org/specs/source-date-epoch/ Upstream-Status: Submitted [https://github.com/mlcommons/inference/pull/2345] Signed-off-by: Hongxu Jia --- version_generator.py | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/version_generator.py b/version_generator.py index 2e75243..5202da9 100644 --- a/version_generator.py +++ b/version_generator.py @@ -110,8 +110,13 @@ def generate_loadgen_version_definitions(cc_filename, loadgen_root): # Write the version into the function definition ofile.write(func_def("Version", f"\"{version_contents}\"")) - date_time_now_local = datetime.datetime.now().isoformat() - date_time_now_utc = datetime.datetime.utcnow().isoformat() + if os.environ.get('SOURCE_DATE_EPOCH', False): + source_date_epoch = int(os.environ['SOURCE_DATE_EPOCH']) + date_time_now_local = datetime.datetime.fromtimestamp(source_date_epoch).isoformat() + date_time_now_utc = datetime.datetime.fromtimestamp(source_date_epoch, tz=datetime.timezone.utc).isoformat() + else: + date_time_now_local = datetime.datetime.now().isoformat() + date_time_now_utc = datetime.datetime.utcnow().isoformat() ofile.write(func_def("BuildDateLocal", '"' + date_time_now_local + '"')) ofile.write(func_def("BuildDateUtc", '"' + date_time_now_utc + '"')) -- 2.34.1