U
    
Ha}                     @   sn   d Z ddlZddlZddlmZ ddlmZ ddlmZ ddl	m
Z
 ddlmZ eeZdd	 Zd
d ZdS )z;Metadata generation logic for legacy source distributions.
    N)BuildEnvironment)InstallationError)make_setuptools_egg_info_args)call_subprocess)TempDirectoryc                 C   sR   dd t | D }|s&td|  t|dkr@td| t j| |d S )z3Find an .egg-info subdirectory in `directory`.
    c                 S   s   g | ]}| d r|qS )z	.egg-info)endswith).0f r
   R/tmp/pip-unpacked-wheel-tx790h60/pip/_internal/operations/build/metadata_legacy.py
<listcomp>   s    
 z"_find_egg_info.<locals>.<listcomp>z No .egg-info directory found in    z-More than one .egg-info directory found in {}r   )oslistdirr   lenformatpathjoin)	directory	filenamesr
   r
   r   _find_egg_info   s    r   c              	   C   sP   t d|| tdddj}t|||d}|  t||dd W 5 Q R X t|S )znGenerate metadata using setup.py-based defacto mechanisms.

    Returns the generated metadata directory.
    z2Running setup.py (path:%s) egg_info for package %szpip-egg-infoT)kindglobally_managed)egg_info_dirno_user_configzpython setup.py egg_info)cwdcommand_desc)loggerdebugr   r   r   r   r   )	build_envsetup_py_path
source_dirisolateddetailsr   argsr
   r
   r   generate_metadata'   s*      r%   )__doc__loggingr   pip._internal.build_envr   pip._internal.exceptionsr   $pip._internal.utils.setuptools_buildr   pip._internal.utils.subprocessr   pip._internal.utils.temp_dirr   	getLogger__name__r   r   r%   r
   r
   r
   r   <module>   s   
