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import subprocess
import sys
import tarfile
from pathlib import Path
import pytest
from pytest import MonkeyPatch
pytest.importorskip("flit")
pytest.importorskip("build")
# This test must be run from the source directory - okay to skip if not
DIR = Path(__file__).parent.resolve()
MAIN_DIR = DIR.parent
def test_compare_sdists(monkeypatch: MonkeyPatch, tmp_path: Path) -> None:
monkeypatch.chdir(MAIN_DIR)
sdist_build_dir = tmp_path / "bdir"
subprocess.run(
[
sys.executable,
"-m",
"build",
"--sdist",
"--no-isolation",
f"--outdir={sdist_build_dir}",
],
check=True,
)
(sdist_build,) = sdist_build_dir.glob("*.tar.gz")
# Flit doesn't allow targeting directories, as far as I can tell
process = subprocess.run(
[sys.executable, "-m", "flit", "build", "--format=sdist"],
stderr=subprocess.PIPE,
)
if process.returncode != 0:
pytest.fail(process.stderr.decode("utf-8"))
(sdist_flit,) = Path("dist").glob("*.tar.gz")
out = [set(), set()]
for i, sdist in enumerate([sdist_build, sdist_flit]):
with tarfile.open(sdist, "r:gz") as tar:
out[i] = set(tar.getnames())
assert out[0] == (out[1] - {"setup.py"})
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