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Support a SOURCE_DATE_EPOCH prior to 1980 #1999

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Support a SOURCE_DATE_EPOCH prior to 1980 #1999

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4 changes: 3 additions & 1 deletion backend/src/hatchling/builders/wheel.py
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Original file line number Diff line number Diff line change
Expand Up @@ -88,7 +88,9 @@ def __init__(self, project_id: str, *, reproducible: bool) -> None:
def get_reproducible_time_tuple() -> TIME_TUPLE:
from datetime import datetime, timezone

d = datetime.fromtimestamp(get_reproducible_timestamp(), timezone.utc)
# `zipfile.ZipInfo` does not support timestamps before 1980
min_ts = 315532800 # 1980-01-01T00:00:00Z
d = datetime.fromtimestamp(max(get_reproducible_timestamp(), min_ts), timezone.utc)
return d.year, d.month, d.day, d.hour, d.minute, d.second

def add_file(self, included_file: IncludedFile) -> tuple[str, str, str]:
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13 changes: 10 additions & 3 deletions tests/backend/builders/test_wheel.py
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Original file line number Diff line number Diff line change
Expand Up @@ -786,7 +786,14 @@ def test_default_auto_detection(self, hatch, helpers, temp_dir, config_file):
zip_info = zip_archive.getinfo(f"{metadata_directory}/WHEEL")
assert zip_info.date_time == (2020, 2, 2, 0, 0, 0)

def test_default_reproducible_timestamp(self, hatch, helpers, temp_dir, config_file):
@pytest.mark.parametrize(
("epoch", "expected_date_time"),
[
("0", (1980, 1, 1, 0, 0, 0)),
("1580601700", (2020, 2, 2, 0, 1, 40)),
],
)
def test_default_reproducible_timestamp(self, hatch, helpers, temp_dir, config_file, epoch, expected_date_time):
config_file.model.template.plugins["default"]["src-layout"] = False
config_file.save()

Expand All @@ -812,7 +819,7 @@ def test_default_reproducible_timestamp(self, hatch, helpers, temp_dir, config_f
build_path = project_path / "dist"
build_path.mkdir()

with project_path.as_cwd(env_vars={"SOURCE_DATE_EPOCH": "1580601700"}):
with project_path.as_cwd(env_vars={"SOURCE_DATE_EPOCH": epoch}):
artifacts = list(builder.build(directory=str(build_path)))

assert len(artifacts) == 1
Expand All @@ -837,7 +844,7 @@ def test_default_reproducible_timestamp(self, hatch, helpers, temp_dir, config_f

with zipfile.ZipFile(str(expected_artifact), "r") as zip_archive:
zip_info = zip_archive.getinfo(f"{metadata_directory}/WHEEL")
assert zip_info.date_time == (2020, 2, 2, 0, 1, 40)
assert zip_info.date_time == expected_date_time

def test_default_no_reproducible(self, hatch, helpers, temp_dir, config_file):
config_file.model.template.plugins["default"]["src-layout"] = False
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