U
    e                     @   sF   d dl Z d dlmZ d dlZejjZG dd dZG dd deZdS )    N)logc                   @   s\   e Zd ZdZdd Zdd Zdd Zdd	 Zd
ZdZ	dd Z
dd Zdd Zedd ZdS )	Installerz
-nspkg.pthc              	   C   sr   |   }|sd S |  }| j| td| t| j|}| jrNt	| d S t
|d}|| W 5 Q R X d S )NzInstalling %sZwt)_get_all_ns_packages_get_nspkg_fileZoutputsappendr   infomap_gen_nspkg_linedry_runlistopen
writelines)selfZnspfilenamelinesf r   4lib/python3.8/site-packages/setuptools/namespaces.pyinstall_namespaces   s    zInstaller.install_namespacesc                 C   s2   |   }tj|sd S td| t| d S )NzRemoving %s)r   ospathexistsr   r   remove)r   r   r   r   r   uninstall_namespaces   s
    zInstaller.uninstall_namespacesc                 C   s   t j|  \}}|| j S N)r   r   splitext_get_target	nspkg_ext)r   r   _r   r   r   r   $   s    zInstaller._get_nspkg_filec                 C   s   | j S r   )targetr   r   r   r   r   (   s    zInstaller._get_target)	zimport sys, types, osz#has_mfs = sys.version_info > (3, 5)z$p = os.path.join(%(root)s, *%(pth)r)z4importlib = has_mfs and __import__('importlib.util')z-has_mfs and __import__('importlib.machinery')zm = has_mfs and sys.modules.setdefault(%(pkg)r, importlib.util.module_from_spec(importlib.machinery.PathFinder.find_spec(%(pkg)r, [os.path.dirname(p)])))zCm = m or sys.modules.setdefault(%(pkg)r, types.ModuleType(%(pkg)r))z7mp = (m or []) and m.__dict__.setdefault('__path__',[])z(p not in mp) and mp.append(p))z4m and setattr(sys.modules[%(parent)r], %(child)r, m)c                 C   s   dS )Nz$sys._getframe(1).f_locals['sitedir']r   r    r   r   r   	_get_rootA   s    zInstaller._get_rootc                 C   sN   t |d}|  }| j}|d\}}}|r:|| j7 }d|t  d S )N.;
)tuplesplitr!   _nspkg_tmpl
rpartition_nspkg_tmpl_multijoinlocals)r   pkgZpthrootZ
tmpl_linesparentsepZchildr   r   r   r	   D   s    
zInstaller._gen_nspkg_linec                 C   s$   | j jp
g }tttt| j|S )z,Return sorted list of all package namespaces)ZdistributionZnamespace_packagessortedsetflattenr   
_pkg_names)r   Zpkgsr   r   r   r   M   s    zInstaller._get_all_ns_packagesc                 c   s(   |  d}|r$d|V  |  q
dS )z
        Given a namespace package, yield the components of that
        package.

        >>> names = Installer._pkg_names('a.b.c')
        >>> set(names) == set(['a', 'a.b', 'a.b.c'])
        True
        r"   N)r&   r*   pop)r,   partsr   r   r   r3   R   s    

zInstaller._pkg_namesN)__name__
__module____qualname__r   r   r   r   r   r'   r)   r!   r	   r   staticmethodr3   r   r   r   r   r   	   s   	r   c                   @   s   e Zd Zdd Zdd ZdS )DevelopInstallerc                 C   s   t t| jS r   )reprstrZegg_pathr    r   r   r   r!   c   s    zDevelopInstaller._get_rootc                 C   s   | j S r   )Zegg_linkr    r   r   r   r   f   s    zDevelopInstaller._get_targetN)r6   r7   r8   r!   r   r   r   r   r   r:   b   s   r:   )	r   	distutilsr   	itertoolschainfrom_iterabler2   r   r:   r   r   r   r   <module>   s
   Y