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util.cpython-38.pyc
U i�f�Q � @ s d Z ddlZddlZddlZddlZddlZddlmZ ddl m Z ddl m Z ddl mZ ddlmZ dd � Zd d � Zd d � Zdd� Zdadd� Zdd� Zd*dd�Zd a aadd� Zdd� Z d+dd �Z d d � Z d,d d!�Z d"d#� Z d-d$d%�Z!d.d&d'�Z"G d(d)� d)�Z#dS )/zudistutils.util Miscellaneous utility functions -- anything that doesn't fit into one of the other *util.py modules. � N)�DistutilsPlatformError)�newer)�spawn)�log)�DistutilsByteCompileErrorc C s� t jdkrFdtj�� kr dS dtj�� kr.dS dtj�� kr@dS tjS dt jkrZt jd S t jd ksntt d �sttjS t �� \} }}}}| �� � d d �} |� d d�}|� d d�}| dd� dkr�d| |f S | dd� dk�r,|d dk�r�d} dt |d �d |dd� f }dd d �}|d |tj 7 }n�| dd� d k�rLd | ||f S | dd!� d"k�r�d"} t � d#t j�}|�|�}|�r�|�� }n>| dd!� d$k�r�ddl}ddl} |�| j�� | ||�\} }}d%| ||f S )&a� Return a string that identifies the current platform. This is used mainly to distinguish platform-specific build directories and platform-specific built distributions. 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Otherwise, it requires making 'pathname' relative and then joining the two, which is tricky on DOS/Windows and Mac OS. r � Nr r �\z!nothing known about platform '%s')r r r9 �isabsr: � splitdriver )Znew_rootr; Zdriver9 r- r- r. � change_root� s rB c C sx t rdS tjdkrZdtjkrZz$ddl} | �t�� �d tjd< W n ttfk rX Y nX dtjkrpt � tjd< da dS )aL Ensure that 'os.environ' has all the environment variables we guarantee that users can use in config files, command-line options, etc. Currently this includes: HOME - user's home directory (Unix only) PLAT - description of the current platform, including hardware and OS (see 'get_platform()') Nr �HOMEr r ZPLATr> ) �_environ_checkedr r r �pwd�getpwuid�getuid� ImportError�KeyErrorr1 )rE r- r- r. � check_environ� s rJ c C sV t � |fdd�}zt�d|| �W S tk rP } ztd| ��W 5 d}~X Y nX dS )a� Perform shell/Perl-style variable substitution on 'string'. 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Raise ValueError for any variables not found in either 'local_vars' or 'os.environ'. c S s, | � d�}||kr t|| �S tj| S d S )Nr> )r' �strr r )r& � local_varsZvar_namer- r- r. �_subst� s zsubst_vars.<locals>._substz\$([a-zA-Z_][a-zA-Z_0-9]*)zinvalid variable '$%s'N)rJ r# �subrI r5 )�srL rM �varr- r- r. � subst_vars� s rQ �error: c C s |t | � S �N)rK )�exc�prefixr- r- r. �grok_environment_error� s rV c C s( t �dtj �at �d�at �d�ad S )Nz [^\\\'\"%s ]*z'(?:[^'\\]|\\.)*'z"(?:[^"\\]|\\.)*")r# r$ �string� whitespace� _wordchars_re� _squote_re� _dquote_rer- r- r- r. � _init_regex� s r\ c C s� t dkrt� | �� } g }d}| �r�t �| |�}|�� }|t| �krZ|�| d|� � �q�| | tjkr�|�| d|� � | |d� � � } d}n�| | dkr�| d|� | |d d� } |d }n�| | dkr�t �| |�}n*| | dkr�t �| |�}nt d| | ��|dk�r t d| | ��|�� \}}| d|� | |d |d � | |d� } |�� d }|t| �kr |�| � �q�q |S ) a Split a string up according to Unix shell-like rules for quotes and backslashes. In short: words are delimited by spaces, as long as those spaces are not escaped by a backslash, or inside a quoted string. Single and double quotes are equivalent, and the quote characters can be backslash-escaped. The backslash is stripped from any two-character escape sequence, leaving only the escaped character. The quote characters are stripped from any quoted string. Returns a list of words. Nr r? r> �'�"z!this can't happen (bad char '%c')z"bad string (mismatched %s quotes?)r )rY r\ �stripr& �end�len�appendrW rX �lstriprZ r[ � RuntimeErrorr5 �span)rO Zwords�posr+ r` Zbegr- r- r. � split_quoted� s@ , rg c C sP |dkr6d| j |f }|dd� dkr6|dd� d }t�|� |sL| |� dS )a� Perform some action that affects the outside world (eg. by writing to the filesystem). Such actions are special because they are disabled by the 'dry_run' flag. This method takes care of all that bureaucracy for you; all you have to do is supply the function to call and an argument tuple for it (to embody the "external action" being performed), and an optional message to print. Nz%s%r���z,)r �))�__name__r �info)�func�args�msg�verbose�dry_runr- r- r. �execute s rq c C s2 | � � } | dkrdS | dkr dS td| f ��dS )z�Convert a string representation of truth to true (1) or false (0). True values are 'y', 'yes', 't', 'true', 'on', and '1'; false values are 'n', 'no', 'f', 'false', 'off', and '0'. Raises ValueError if 'val' is anything else. )�yZyes�t�trueZon�1r> )�nZno�fZfalseZoff�0r zinvalid truth value %rN)r r5 )�valr- r- r. � strtobool2 s rz r> c C sT ddl }tjrtd��|dkr*do(|dk}|�s@z ddlm} | d�\} } W n. tk rz ddlm} d| d� } } Y nX t� d| � |s�| dk r�t � | d �} n t | d �} | �B | � d � | � d �tt| ��d � | � d |||||f � W 5 Q R X tjg}|�|�� � |�| � t||d� tt j| fd| |d� �nddlm} | D ]�}|dd� dk�rj�qP|dk�r�|dk�r�dn|}tjj ||d�}n tj� |�}|}|�r�|dt |�� |k�r�t d||f ��|t |�d� }|�r�t j �||�}t j � |�}|�rP|�s t!||��r>t� d||� |�sL||||� nt�"d||� �qPdS )a~ Byte-compile a collection of Python source files to .pyc files in a __pycache__ subdirectory. 'py_files' is a list of files to compile; any files that don't end in ".py" are silently skipped. 'optimize' must be one of the following: 0 - don't optimize 1 - normal optimization (like "python -O") 2 - extra optimization (like "python -OO") If 'force' is true, all files are recompiled regardless of timestamps. The source filename encoded in each bytecode file defaults to the filenames listed in 'py_files'; you can modify these with 'prefix' and 'basedir'. 'prefix' is a string that will be stripped off of each source filename, and 'base_dir' is a directory name that will be prepended (after 'prefix' is stripped). You can supply either or both (or neither) of 'prefix' and 'base_dir', as you wish. If 'dry_run' is true, doesn't actually do anything that would affect the filesystem. Byte-compilation is either done directly in this interpreter process with the standard py_compile module, or indirectly by writing a temporary script and executing it. Normally, you should let 'byte_compile()' figure out to use direct compilation or not (see the source for details). 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