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Ensure reproducible wheel file timestamps #70

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Merged
merged 1 commit into from
Apr 24, 2025
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Ensure reproducible wheel file timestamps #70

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12 changes: 10 additions & 2 deletions sipbuild/builder.py
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Original file line number Diff line number Diff line change
Expand Up @@ -177,15 +177,23 @@ def build_wheel(self, wheel_directory):
saved_cwd = os.getcwd()
os.chdir(wheel_build_dir)

from zipfile import ZipFile, ZIP_DEFLATED
import time
from zipfile import ZipFile, ZipInfo, ZIP_DEFLATED

# Ensure reproducible wheel file timestamps
epoch = int(os.environ.get('SOURCE_DATE_EPOCH', time.time()))
zip_timestamp = time.gmtime(epoch)[:6]

with ZipFile(wheel_path, 'w', compression=ZIP_DEFLATED) as zf:
for dirpath, _, filenames in os.walk('.'):
for filename in filenames:
# This will result in a name with no leading '.'.
name = os.path.relpath(os.path.join(dirpath, filename))

zf.write(name)
zi = ZipInfo(name, zip_timestamp)

with open(name, 'rb') as f:
zf.writestr(zi, f.read())

os.chdir(saved_cwd)

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