U
    _#7                     @   s  d Z 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	 ddl
mZ ddlmZmZ ddlmZmZ ddlmZ erdd	lmZmZmZmZmZmZmZ ejZed
eZee Z!dd Z"dd Z#eddddddZ$erdndZ%dd Z&G dd de'Z(dS )a  Configuration management setup

Some terminology:
- name
  As written in config files.
- value
  Value associated with a name
- key
  Name combined with it's section (section.name)
- variant
  A single word describing where the configuration key-value pair came from
    N)configparser)ConfigurationError!ConfigurationFileCouldNotBeLoaded)appdirs)WINDOWS
expanduser)
ensure_direnum)MYPY_CHECK_RUNNING)AnyDictIterableListNewTypeOptionalTupleKindc                 C   s*   |   dd} | dr&| dd } | S )zFMake a name consistent regardless of source (environment or file)
    _-z--   N)lowerreplace
startswith)name r   N/home/toby/toby_env/lib/python3.8/site-packages/pip/_internal/configuration.py_normalize_name*   s    
r   c                 C   s&   d| krd | }t|| ddS )N.zbKey does not contain dot separated section and key. Perhaps you wanted to use 'global.{}' instead?   )formatr   split)r   Zerror_messager   r   r   _disassemble_key4   s    r!   userglobalsiteenvzenv-var)USERGLOBALSITEENVENV_VARzpip.inizpip.confc                  C   sp   dd t dD } tjtjt}tjtdt	r8dndt}tjt 
dt}tj| tj|gtj||giS )Nc                 S   s   g | ]}t j|tqS r   )ospathjoinCONFIG_BASENAME).0r,   r   r   r   
<listcomp>N   s   z+get_configuration_files.<locals>.<listcomp>pip~z.pip)r   site_config_dirsr+   r,   r-   sysprefixr.   r   r   user_config_dirkindsr'   r(   r&   )Zglobal_config_filesZsite_config_fileZlegacy_config_fileZnew_config_filer   r   r   get_configuration_filesL   s(    
    r8   c                       s   e Zd ZdZd- fdd	Zdd Zdd Zd	d
 Zdd Zdd Z	dd Z
dd Zdd Zedd Zdd Zdd Zdd Zdd Zdd  Zd!d" Zd#d$ Zd%d& Zd'd( Zd)d* Zd+d, Z  ZS ).Configurationa  Handles management of configuration.

    Provides an interface to accessing and managing configuration files.

    This class converts provides an API that takes "section.key-name" style
    keys and stores the value associated with it as "key-name" under the
    section "section".

    This allows for a clean interface wherein the both the section and the
    key-name are preserved in an easy to manage form in the configuration files
    and the data stored is also nice.
    Nc              
      s   t t|   tjtjtjd g}||krJtdd	t
t|d d || _|| _tjtjtjtjtjg| _ddg| _dd | jD | _dd | jD | _g | _d S )	Nz5Got invalid value for load_only - should be one of {}z, versionhelpc                 S   s   i | ]
}|g qS r   r   r/   variantr   r   r   
<dictcomp>   s     z*Configuration.__init__.<locals>.<dictcomp>c                 S   s   i | ]
}|i qS r   r   r=   r   r   r   r?      s     )superr9   __init__r7   r&   r'   r(   r   r   r-   mapreprisolated	load_onlyr)   r*   _override_order_ignore_env_names_parsers_config_modified_parsers)selfrD   rE   Z_valid_load_only	__class__r   r   rA   q   s0        
zConfiguration.__init__c                 C   s   |    | js|   dS )zELoads configuration from configuration files and environment
        N)_load_config_filesrD   _load_environment_varsrK   r   r   r   load   s    zConfiguration.loadc                 C   s<   | j dk	stdz|  d W S  tk
r6   Y dS X dS )z@Returns the file with highest priority in configuration
        Nz)Need to be specified a file to be editingr   )rE   AssertionError_get_parser_to_modify
IndexErrorrP   r   r   r   get_file_to_edit   s    zConfiguration.get_file_to_editc                 C   s
   | j  S )z`Returns key-value pairs like dict.items() representing the loaded
        configuration
        )_dictionaryitemsrP   r   r   r   rW      s    zConfiguration.itemsc                 C   s4   z| j | W S  tk
r.   td|Y nX dS )z,Get a value from the configuration.
        No such key - {}N)rV   KeyErrorr   r   )rK   keyr   r   r   	get_value   s    zConfiguration.get_valuec                 C   st   |    | jst|  \}}|dk	rTt|\}}||sF|| |||| || j| j |< | 	|| dS )z-Modify a value in the configuration.
        N)
_ensure_have_load_onlyrE   rR   rS   r!   has_sectionadd_sectionsetrI   _mark_as_modified)rK   rZ   valuefnameparsersectionr   r   r   r   	set_value   s    


zConfiguration.set_valuec                 C   s   |    | jst|| j| j kr0td||  \}}|dk	rt|\}}||rf|	||sntd|
|s|| | || | j| j |= dS )z#Unset a value in the configuration.rX   Nz4Fatal Internal error [id=1]. Please report as a bug.)r\   rE   rR   rI   r   r   rS   r!   r]   remove_optionrW   remove_sectionr`   )rK   rZ   rb   rc   rd   r   r   r   r   unset_value   s"    




zConfiguration.unset_valuec              
   C   sX   |    | jD ]D\}}td| ttj| t|d}|	| W 5 Q R X qdS )z*Save the current in-memory state.
        zWriting to %swN)
r\   rJ   loggerinfor   r+   r,   dirnameopenwrite)rK   rb   rc   fr   r   r   save   s    zConfiguration.savec                 C   s$   | j d krtdtd| j  d S )Nz'Needed a specific file to be modifying.z$Will be working with %s variant only)rE   r   rj   debugrP   r   r   r   r\      s    
z$Configuration._ensure_have_load_onlyc                 C   s$   i }| j D ]}|| j|  q
|S )z<A dictionary representing the loaded configuration.
        )rF   updaterI   )rK   retvalr>   r   r   r   rV      s    
zConfiguration._dictionaryc                 C   s   t |  }|tj dd tjgkr4td dS | D ]V\}}|D ]H}| j	dk	rp|| j	krptd|| qH| 
||}| j| ||f qHq<dS )z5Loads configuration from configuration files
        r   r   zZSkipping loading configuration files due to environment's PIP_CONFIG_FILE being os.devnullNz Skipping file '%s' (variant: %s))dictiter_config_filesr7   r)   r+   devnullrj   rq   rW   rE   
_load_filerH   append)rK   config_filesr>   filesrb   rc   r   r   r   rN   	  s"      z Configuration._load_config_filesc                 C   sL   t d|| | |}| D ]&}||}| j| | || q |S )Nz'For variant '%s', will try loading '%s')rj   rq   _construct_parsersectionsrW   rI   rr   _normalized_keys)rK   r>   rb   rc   rd   rW   r   r   r   rw   $  s    

zConfiguration._load_filec              
   C   s   t  }tj|r|z|| W nX tk
rN   tdt	
d|dY n. t jk
rz } zt|dW 5 d }~X Y nX |S )Nzcontains invalid {} charactersF)reasonrb   )error)r   RawConfigParserr+   r,   existsreadUnicodeDecodeErrorr   r   localegetpreferredencodingError)rK   rb   rc   r   r   r   r   r{   /  s    
zConfiguration._construct_parserc                 C   s"   | j tj | d|   dS )z7Loads configuration from environment variables
        z:env:N)rI   r7   r*   rr   r}   get_environ_varsrP   r   r   r   rO   F  s    z$Configuration._load_environment_varsc                 C   s.   i }|D ] \}}|d t | }|||< q|S )zNormalizes items to construct a dictionary with normalized keys.

        This routine is where the names become keys and are made the same
        regardless of source - configuration files or environment.
        r   )r   )rK   rd   rW   
normalizedr   valrZ   r   r   r   r}   N  s
    
zConfiguration._normalized_keysc                 c   sR   t j D ]B\}}|do0|dd  | jk}|r
|dd  |fV  q
dS )z@Returns a generator with all environmental vars with prefix PIP_ZPIP_   N)r+   environrW   r   r   rG   )rK   rZ   r   Zshould_be_yieldedr   r   r   r   [  s    
zConfiguration.get_environ_varsc                 c   s   t jdd}|dk	r&tj|gfV  ntjg fV  t }tj|tj fV  | j ob|o`t j	| }|rztj
|tj
 fV  tj|tj fV  dS )zYields variant and configuration files associated with it.

        This should be treated like items of a dictionary.
        ZPIP_CONFIG_FILEN)r+   r   getr7   r)   r8   r'   rD   r,   r   r&   r(   )rK   config_filery   Zshould_load_user_configr   r   r   ru   g  s    	zConfiguration.iter_config_filesc                 C   s
   | j | S )z#Get values present in a config file)rI   )rK   r>   r   r   r   get_values_in_config  s    z"Configuration.get_values_in_configc                 C   s*   | j s
t| j| j  }|s"td|d S )Nz4Fatal Internal error [id=2]. Please report as a bug.r:   )rE   rR   rH   r   )rK   parsersr   r   r   rS     s    
z#Configuration._get_parser_to_modifyc                 C   s"   ||f}|| j kr| j | d S )N)rJ   rx   )rK   rb   rc   Zfile_parser_tupler   r   r   r`     s    
zConfiguration._mark_as_modifiedc                 C   s   d | jj| jS )Nz{}({!r}))r   rM   __name__rV   rP   r   r   r   __repr__  s    zConfiguration.__repr__)N)r   
__module____qualname____doc__rA   rQ   rU   rW   r[   re   rh   rp   r\   propertyrV   rN   rw   r{   rO   r}   r   ru   r   rS   r`   r   __classcell__r   r   rL   r   r9   c   s.   	
r9   ))r   r   loggingr+   r4   pip._vendor.six.movesr   pip._internal.exceptionsr   r   pip._internal.utilsr   pip._internal.utils.compatr   r   pip._internal.utils.miscr   r	   pip._internal.utils.typingr
   typingr   r   r   r   r   r   r   r   strr   	getLoggerr   rj   r   r!   r7   r.   r8   objectr9   r   r   r   r   <module>   s6   $


	