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Code Issues Releases Activity

Handle zipapp inception

This commit is contained in:
Tzu-ping Chung 2021-03-06 21:10:06 +08:00
parent 9cab77eb17
commit bba1226a03
1 changed files with 9 additions and 2 deletions
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11
src/pip/_internal/build_env.py
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@ -45,12 +45,19 @@ class _Prefix:
def _create_standalone_pip() -> Iterator[str]:
"""Create a "standalone pip" zip file.
The zip file contains a (modified) copy of the pip currently running.
The zip file's content is identical to the currently-running pip.
It will be used to install requirements into the build environment.
"""
source = pathlib.Path(pip_location).resolve().parent
# Return the current instance if it is already a zip file. This can happen
# if a PEP 517 requirement is an sdist itself.
if not source.is_dir() and source.parent.name == "__env_pip__.zip":
yield str(source)
return
with TempDirectory(kind="standalone-pip") as tmp_dir:
pip_zip = os.path.join(tmp_dir.path, "pip.zip")
pip_zip = os.path.join(tmp_dir.path, "__env_pip__.zip")
with zipfile.ZipFile(pip_zip, "w") as zf:
for child in source.rglob("*"):
zf.write(child, child.relative_to(source.parent).as_posix())