a lj @ s d Z ddlZddlZddlZddlZddlmZ ddlZddlm Z ddl mZ ddlm Z ddlmZmZ eeZd d ZG dd deZdd dZdddZdS )zIBuild wheels/sdists by installing build deps to a temporary environment. N) check_call) get_paths)mkdtemp ) toml_load)Pep517HookCaller LoggerWrapperc C s^ t tj| dd}t|}W d n1 s40 Y |d }|d |d |dfS )Nzpyproject.tomlrbzbuild-systemrequiresz build-backendzbackend-path)ioopenospathjoinr get) source_dirfZpyproject_dataZbuildsys r ?/usr/lib/python3.9/site-packages/pip/_vendor/pep517/envbuild.py_load_pyproject s &r c @ s6 e Zd ZdZdZdddZdd Zdd Zd d ZdS ) BuildEnvironmentzContext manager to install build deps in a simple temporary environment Based on code I wrote for pip, which is MIT licensed. NTc C s || _ d S )N)_cleanup)selfZcleanupr r r __init__= s zBuildEnvironment.__init__c C s t dd| _td| j tjdd | _tjdd | _tj dkrHdnd}t || j| jdd }|d }| jr|tj | j tjd<