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If command is a basename then PATH is searched for command. PATH isn't searched if command is an absolute or relative path. If command isn't found None is returned.r, c S s" t j�| �r t �| t j�r | S d S rz )r r_ �isfile�access�X_OK)� executabler r r � findexisting? s z findexe.<locals>.findexistings plan9s /bins PATHr N) r r0 r� r r_ r` r �environ�getr% Z ospathsep)Zcommandr� r_ r� r r r �findexe7 s r� c C s d S rz r r r r r �setsignalhandlerR s r� c c s| t j}tj}| D ]f}z ||�}||j�tvr0d}W n< tyn } z$|jtjtj fvrV� d}W Y d}~n d}~0 0 |V qdS )zqStat each file in files. Yield each stat, or None if a file does not exist or has a type we don't care about.N) r r' rA �S_IFMTr< � _wantedkindsr r rR �ENOTDIR)�filesr' ZgetkindZnfrM �errr r r � statfilesY s r� c C s t �t�� �S )zreturn name of current user)r rp r� �getuserr r r r r� j s r� c C sF | du rt �� } zt�t�| �d �W S ty@ d| Y S 0 dS )ziReturn the name of the user with the given uid. If uid is None, return the name of the current user.Nr s %d)r r� r rp �pwd�getpwuid�KeyError)�uidr r r �usernameo s r� c C sH | du rt �� } zt�t�| �d �W S tyB t�| � Y S 0 dS )zkReturn the name of the group with the given gid. If gid is None, return the name of the current group.Nr )r �getgidr rp �grp�getgrgidr� Zbytestr)�gidr r r � groupname| s r� c C s$ t �| �} t �t jtt�| �j��S )zkReturn the list of members of the group with the given name, KeyError if the group does not exist. )r ro Zrapplyrp �listr� �getgrnam�gr_memr) r r r � groupmembers� s r� c C s t �t jtt dd�B | d | �S )NZP_DETACHr )r �spawnvp�P_NOWAITr )r9 r r r � spawndetached� s r� c C s t jd d� S )Nr )�sys�argvr r r r �gethgcmd� s r� c C s t �| � d S rz )r rb )r_ Z notindexedr r r �makedir� s r� c C s d S rz r )�keyr Zscoper r r � lookupreg� s r� c C s dS )z�Hide current shell window. Used to hide the window opened when starting asynchronous child process under Windows, unneeded on other systems. Nr r r r r � hidewindow� s r� c @ s2 e Zd Zdd� Zdd� ZejZdd� Zdd� Zd S ) � cachestatc C s t �|�| _d S rz )r rA )�selfr_ r r r �__init__� s zcachestat.__init__c C s t | jj�S rz )rI rA �st_ino)r� r r r � cacheable� s zcachestat.cacheablec C s� z�| j j|j jko�| j j|j jko�| j j|j jko�| j j|j jko�| j j|j jko�| j j|j jko�| j j|j jko�| j t j |j t j ko�| j t j |j t j kW S t y� Y dS 0 d S r� ) rA r< r� r� r( r� �st_gid�st_size�ST_MTIME�ST_CTIMErr �r� �otherr r r �__eq__� s( �������� zcachestat.__eq__c C s | |k S rz r r� r r r �__ne__� s zcachestat.__ne__N) �__name__� __module__� __qualname__r� r� �object�__hash__r� r� r r r r r� � s r� c C s | ot �| j�S )z(check whether a stat result is a symlink)rA rB r< r� r r r � statislink� s r� c C s | o| j d@ dkS )z1check whether a stat result is an executable filer; r )r< r� r r r � statisexec� s r� c C s� zbzt � | | | �}W q`W q t jy\ } z*|jd tjkrFW Y d}~q� W Y d}~qd}~0 0 qW n tyz t� �Y n0 ttt t |g ����S )z�block until something happens on any file descriptor This is a generic helper that will check for any activity (read, write. exception) and return the list of touched files. In unsupported cases, it will raise a NotImplementedErrorr N) �selectr r9 r ZEINTRr� �NotImplementedError�sortedr� �set�sum)Zfds�resrT r r r �poll� s r� c C s� t � | t j�}|tjO }t � | t j|�}zXg }z | �� }|s@W qf|�|� W q. tyb Y qfY q.0 q.d�|�W t � | t j|� S t � | t j|� 0 dS )z$Read all available data from a pipe.r N) �fcntlZF_GETFLr � O_NONBLOCKZF_SETFLrC �appendrc r` )�pipe�flagsZoldflags�chunksrN r r r �readpipe� s �r� c C sp t j�|�\}}d}zF|r2t �dt j�}t �|� | �|� |rJt �|� W |rlt �|� n|rjt �|� 0 dS )z1Bind the UNIX domain socket to the specified pathN� .) r r_ r% r � O_DIRECTORY�chdirZbind�fchdirre )Zsockr_ �dirnamerq Zbakwdfdr r r �bindunixsocket s �r� )r r )NF)N)N)NN)`Z __future__r r r� r� r� r r� r� r� rA r� rn r� Zi18nr r r r r� r r r Z importmodr r_ �normpath�samestat�abspath�linkr rr rG rD rf � removedirsZ expandglobsrH Zispy3r r% r& r* r3 r: r> rP rU rl rs rx ry r� r� r� r� r� r� r� r� Z normcasespecsr� Z normcasespecr� Zisdarwinr0 r� r� r� r� r5 r� r� r� r� r� �S_IFREG�S_IFLNKr� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r r r r �<module> s� , SH � "