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23 lines
1003 B
23 lines
1003 B
2 weeks ago
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diff --git a/packaging/pep517_backend/_backend.py b/packaging/pep517_backend/_backend.py
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index 9a28ace..20f3326 100644
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--- a/packaging/pep517_backend/_backend.py
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+++ b/packaging/pep517_backend/_backend.py
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@@ -199,7 +199,16 @@ def _in_temporary_directory(src_dir: Path) -> t.Iterator[None]:
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with TemporaryDirectory(prefix='.tmp-yarl-pep517-') as tmp_dir:
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with chdir_cm(tmp_dir):
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tmp_src_dir = Path(tmp_dir) / 'src'
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- copytree(src_dir, tmp_src_dir, symlinks=True)
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+ def _ignore(d, _):
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+ """
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+ Prevent temporary directory to be copied into self
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+ recursively forever.
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+ Fixes https://github.com/aio-libs/yarl/issues/992
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+ """
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+ if Path(d) == tmp_src_dir.parent:
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+ return [tmp_src_dir.name]
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+ return []
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+ copytree(src_dir, tmp_src_dir, symlinks=True, ignore=_ignore)
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os.chdir(tmp_src_dir)
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yield
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