a
    0f                     @   s   d dl Z d dlZd dlZd dlZd dlmZ d dlmZmZm	Z	m
Z
mZ d dlmZ d dlmZ eeZe jeed ddd	Ze jed
 dddZG dd deZG dd dZdS )    N)TracebackType)Dict	GeneratorOptionalTypeUnion)InstallRequirement)TempDirectoryNNN)changesreturnc               
   k   s   t j}t }i }|  D ]<\}}z|| ||< W n tyJ   |||< Y n0 |||< qzBd V  W | D ].\}}||u r||= qht|tsJ |||< qhn:| D ].\}}||u r||= qt|tsJ |||< q0 d S N)osenvironobjectitemsKeyError
isinstancestr)r   targetnon_existent_markersaved_valuesname	new_valueoriginal_value r   e/var/www/ai-form-bot/venv/lib/python3.9/site-packages/pip/_internal/operations/build/build_tracker.pyupdate_env_context_manager   s*    
r   )BuildTrackerNNr   c               	   c   s   t jd} t t}| d u rL|tddj} |t| d t	
d|  t| }|V  W d    n1 sp0    Y  W d    n1 s0    Y  d S )NPIP_BUILD_TRACKERzbuild-tracker)kind)r    z Initialized build tracking at %s)r   r   get
contextlib	ExitStackenter_contextr	   pathr   loggerdebugr   )rootctxtrackerr   r   r   get_build_tracker(   s    

r,   c                   @   s   e Zd ZdZdS )	TrackerIdz:Uniquely identifying string provided to the build tracker.N)__name__
__module____qualname____doc__r   r   r   r   r-   5   s   r-   c                   @   s   e Zd ZdZeddddZd dddZeee	  ee	 ee
 dd	d
dZeedddZeeddddZeeddddZddddZejeeed dddZdS )r   a7  Ensure that an sdist cannot request itself as a setup requirement.

    When an sdist is prepared, it identifies its setup requirements in the
    context of ``BuildTracker.track()``. If a requirement shows up recursively, this
    raises an exception.

    This stops fork bombs embedded in malicious packages.N)r)   r   c                 C   s   || _ i | _td| j  d S )NzCreated build tracker: %s)_root_entriesr'   r(   )selfr)   r   r   r   __init__B   s    zBuildTracker.__init__r   c                 C   s   t d| j | S )NzEntered build tracker: %s)r'   r(   r2   )r4   r   r   r   	__enter__G   s    zBuildTracker.__enter__)exc_typeexc_valexc_tbr   c                 C   s   |    d S r   )cleanup)r4   r7   r8   r9   r   r   r   __exit__K   s    zBuildTracker.__exit__)keyr   c                 C   s"   t |  }tj| j|S r   )hashlibsha224encode	hexdigestr   r&   joinr2   )r4   r<   hashedr   r   r   _entry_pathS   s    zBuildTracker._entry_path)reqr<   r   c                 C   s   |  |}z4t|}| }W d   n1 s20    Y  W n tyP   Y n0 |j d| }t||| jvsxJ t|ddd}|t| W d   n1 s0    Y  || j|< t	
d|| j dS )z,Add an InstallRequirement to build tracking.Nz is already being built: wzutf-8)encodingzAdded %s to build tracker %r)rC   openreadFileNotFoundErrorlinkLookupErrorr3   writer   r'   r(   r2   )r4   rD   r<   
entry_pathfpcontentsmessager   r   r   addW   s    

*,
zBuildTracker.addc                 C   s,   t | | | j|= td|| j dS )z1Remove an InstallRequirement from build tracking.z Removed %s from build tracker %rN)r   unlinkrC   r3   r'   r(   r2   )r4   rD   r<   r   r   r   remover   s    zBuildTracker.removec                 C   s6   t | j D ]\}}| || qtd| j d S )NzRemoved build tracker: %r)listr3   r   rS   r'   r(   r2   )r4   r<   rD   r   r   r   r:   {   s    zBuildTracker.cleanupr
   c                 c   s*   t |}| || dV  | || dS )zEnsure that `key` cannot install itself as a setup requirement.

        :raises LookupError: If `key` was already provided in a parent invocation of
                             the context introduced by this method.N)r-   rQ   rS   )r4   rD   r<   Z
tracker_idr   r   r   track   s    zBuildTracker.track)r.   r/   r0   r1   r   r5   r6   r   r   BaseExceptionr   r;   r-   rC   r   rQ   rS   r:   r#   contextmanagerr   rU   r   r   r   r   r   9   s   
	r   )r#   r=   loggingr   typesr   typingr   r   r   r   r   Zpip._internal.req.req_installr   pip._internal.utils.temp_dirr	   	getLoggerr.   r'   rW   r   r   r,   r-   r   r   r   r   r   <module>   s   
