Edit File: ref.cpython-37.pyc
B ���ae � @ s� d Z ddlmZmZ ddlZddlmZmZ ddlm Z ddl m Z m Z m Z ddlmZ ddlmZmZ dd lmZmZmZ dd lmZ G d d � d e�ZG d d� de�Zee�G dd� de��Z ee�G dd� de ��Z G dd� de �Z G dd� de e �Z dS )aG Virtual environments in the traditional sense are built as reference to the host python. This file allows declarative references to elements on the file system, allowing our system to automatically detect what modes it can support given the constraints: e.g. can the file system symlink, can the files be read, executed, etc. � )�absolute_import�unicode_literalsN)�ABCMeta�abstractmethod)� OrderedDict)�S_IXGRP�S_IXOTH�S_IXUSR)� add_metaclass)�fs_is_case_sensitive�fs_supports_symlink)�copy�make_exe�symlink)� ensure_textc @ s e Zd ZdZdZdZdS )�RefMust�NAr r N)�__name__� __module__� __qualname__r �COPY�SYMLINK� r r �]/opt/alt/python37/lib/python3.7/site-packages/virtualenv/create/via_global_ref/builtin/ref.pyr s r c @ s e Zd ZdZdZdZdS )�RefWhen�ANYr r N)r r r r r r r r r r r s r c @ sn e Zd ZdZe� Ze� Zej e j fdd�Z dd� Z edd� �Zedd � �Zed d � �Zed d � �Zdd� ZdS )�PathRefz@Base class that checks if a file reference can be symlink/copiedc C sp || _ || _|| _y|�� | _W n tk r: d| _Y nX | jrFd nd| _| jrVd nd| _| jrfd nd| _d S )NF)�must�when�src�exists�OSError� _can_read� _can_copy� _can_symlink)�selfr r r r r r �__init__' s zPathRef.__init__c C s d� | jj| j�S )Nz {}(src={}))�format� __class__r r )r% r r r �__repr__3 s zPathRef.__repr__c C st | j d krn| j�� rTy"| j�d�� d| _ W d Q R X W qn tk rP d| _ Y qnX nt�tt| j��tj �| _ | j S )N�rbTF) r" r �is_file�openr! �os�accessr �str�R_OK)r% r r r �can_read6 s zPathRef.can_readc C s. | j d kr(| jtjkr | j| _ n| j| _ | j S )N)r# r r r � can_symlinkr1 )r% r r r �can_copyC s zPathRef.can_copyc C s4 | j d kr.| jtjkr | j| _ n| jo*| j| _ | j S )N)r$ r r r r3 �FS_SUPPORTS_SYMLINKr1 )r% r r r r2 L s zPathRef.can_symlinkc C s t �d S )N)�NotImplementedError)r% �creator�symlinksr r r �runU s z PathRef.runc C s, | j tjkrtS | j tjkr tS |r(tS tS )N)r r r r r r )r% r7 r r r �methodY s zPathRef.methodN)r r r �__doc__r r4 r �FS_CASE_SENSITIVEr r r r r& r) �propertyr1 r3 r2 r r8 r9 r r r r r s r c sB e Zd ZdZejejf� fdd� Ze dd� �Z e dd� �Z � Z S )� ExePathRefzIBase class that checks if a executable can be references via symlink/copyc s t t| ��|||� d | _d S )N)�superr= r& �_can_run)r% r r r )r( r r r& e s zExePathRef.__init__c C s | j r | jS dS )NF)r4 �can_run)r% r r r r2 i s zExePathRef.can_symlinkc C sF | j d kr@| j�� j}x(tttgD ]}||@ r4d| _ P q"W d| _ | j S )NTF)r? r �stat�st_moder r r )r% �mode�keyr r r r@ o s zExePathRef.can_run) r r r r: r r r r r& r< r2 r@ � __classcell__r r )r( r r= a s r= c s2 e Zd ZdZejejf� fdd� Zdd� Z � Z S )� PathRefToDestz Link a path on the file systemc s t t| ��|||� || _d S )N)r> rF r& �dest)r% r rG r r )r( r r r& s zPathRefToDest.__init__c C sd | � || j�}| �|�}t|t�r&|n|f}|j�� sF|jjddd� x|D ]}|| j|� qLW d S )NT)�parents�exist_ok)rG r r9 � isinstance�list�parentr �mkdir)r% r6 r7 rG r9 Z dest_iterable�dstr r r r8 � s zPathRefToDest.run) r r r r: r r r r r& r8 rE r r )r( r rF | s rF c @ s2 e Zd ZdZejejfdd�Zdd� Z dd� Z dS ) �ExePathRefToDestz"Link a exe path on the file systemc C sd t �| |||� t�| ||||� | jsBttdd� |D ���� �}|d | _|dd � | _|| _ d S )Nc s s | ]}|� � d fV qd S )N)�lower)�.0�ir r r � <genexpr>� s z,ExePathRefToDest.__init__.<locals>.<genexpr>r � ) r= r& rF r; rK r �keys�base�aliasesrG )r% r �targetsrG r r r r r r& � s zExePathRefToDest.__init__c C s� | � || j�j}|| j }| �|�}|| j|� |s<t|� xP| jD ]F}|| }|�� r`|�� |rr|� | j� n t | j|� |sDt|� qDW d S )N) rG r rL rV r9 r rW r �unlinkZ symlink_tor )r% r6 r7 �bin_dirrG r9 �extraZ link_filer r r r8 � s zExePathRefToDest.runc C s d� | jj| j| j�S )Nz{}(src={}, alias={}))r' r( r r rW )r% r r r r) � s zExePathRefToDest.__repr__N) r r r r: r r r r r& r8 r) r r r r rO � s rO ) r: � __future__r r r- �abcr r � collectionsr rA r r r Zsixr Zvirtualenv.infor r Zvirtualenv.util.pathr r r Zvirtualenv.util.sixr �objectr r r r= rF rO r r r r �<module> s" @