Edit File: util.cpython-38.pyc
U @��d�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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Needed because filenames in the setup script are always supplied in Unix style, and have to be converted to the local convention before we can actually use them in the filesystem. Raises ValueError on non-Unix-ish systems if 'pathname' either starts or ends with a slash. r r z path '%s' cannot be absolute���z path '%s' cannot end with '/'�.)r �sep� ValueError�split�remove�curdir�path�join)�pathname�pathsr- r- r. � convert_pathl s r= c C s� t jdkr<t j�|�s$t j�| |�S t j�| |dd� �S nNt jdkr|t j�|�\}}|d dkrn|dd� }t j�| |�S tdt j ��dS )a Return 'pathname' with 'new_root' prepended. If 'pathname' is relative, this is equivalent to "os.path.join(new_root,pathname)". Otherwise, it requires making 'pathname' relative and then joining the two, which is tricky on DOS/Windows and Mac OS. r � Nr r �\z!nothing known about platform '%s')r r r9 �isabsr: � splitdriver )Znew_rootr; Zdriver9 r- r- r. � change_root� s rB c C sx t rdS tjdkrZdtjkrZz$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. 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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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