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B �P�g@& � @ s d Z ddlmZ ddlZddlZddlZddlZddlZddlZddl Z ddl Z ddl m Z m Z ddlmZ ddlmZ ddlmZ e�e�Zejejdd � d �ZG d d � d e �ZG d d� de�ZG dd� de�ZG dd� de�Z ej � d�s�dd� Z ndd� Z dS )u� :module: watchdog.tricks :synopsis: Utility event handlers. :author: yesudeep@google.com (Yesudeep Mangalapilly) :author: contact@tiger-222.fr (Mickaël Schoentgen) Classes ------- .. autoclass:: Trick :members: :show-inheritance: .. autoclass:: LoggerTrick :members: :show-inheritance: .. autoclass:: ShellCommandTrick :members: :show-inheritance: .. autoclass:: AutoRestartTrick :members: :show-inheritance: � )� annotationsN)�EVENT_TYPE_OPENED�PatternMatchingEventHandler)�echo)�EventDebouncer)�ProcessWatcherc C s t �| �S )N)�logger�info)�msg� r �N/home/digitalm-up/venv/lib/python3.7/site-packages/watchdog/tricks/__init__.py�<lambda>; � r )�writec @ s e Zd ZdZedd� �ZdS )�Trickz'Your tricks should subclass this class.c C s d| j � d| j� d�S )Nz- �.z�: args: - argument1 - argument2 kwargs: patterns: - "*.py" - "*.js" ignore_patterns: - "version.py" ignore_directories: false )� __module__�__name__)�clsr r r � generate_yamlB s zTrick.generate_yamlN)r r � __qualname__�__doc__� classmethodr r r r r r > s r c @ s` e Zd ZdZdd� Zedd� �Zedd� �Zedd � �Zed d � �Z ed d � �Z edd� �Z dS )� LoggerTrickz*A simple trick that does only logs events.c C s d S )Nr )�self�eventr r r � on_any_eventV s zLoggerTrick.on_any_eventc C s d S )Nr )r r r r r � on_modifiedY s zLoggerTrick.on_modifiedc C s d S )Nr )r r r r r � on_deleted] s zLoggerTrick.on_deletedc C s d S )Nr )r r r r r � on_createda s zLoggerTrick.on_createdc C s d S )Nr )r r r r r �on_movede s zLoggerTrick.on_movedc C s d S )Nr )r r r r r � on_closedi s zLoggerTrick.on_closedc C s d S )Nr )r r r r r � on_openedm s zLoggerTrick.on_openedN) r r r r r � echo_eventsr r r r r! r" r r r r r R s r c s2 e Zd ZdZd � fdd� Zdd� Zdd � Z� ZS ) �ShellCommandTrickz6Executes shell commands in response to matched events.NFc s6 t � j|||d� || _|| _|| _d | _t� | _d S )N)�patterns�ignore_patterns�ignore_directories)�super�__init__� shell_command�wait_for_process�drop_during_process�process�set�_process_watchers)r r* r% r& r' r+ r, )� __class__r r r) v s zShellCommandTrick.__init__c C s� |j tkrd S ddlm} | jr,| �� r,d S |jr6dnd}|jd|j |d�}| jd krvt |d�rp|j |d< d}q�d }nt |d�r�|j |d < | j}||�j f |�}t j |d d �| _| jr�| j�� n2t| jd �}| j�|� t�| jj|�|_|�� d S ) Nr )�Template� directory�file� )Zwatch_src_path�watch_dest_pathZwatch_event_typeZ watch_object� dest_pathzWecho "${watch_event_type} ${watch_object} from ${watch_src_path} to ${watch_dest_path}"z<echo "${watch_event_type} ${watch_object} ${watch_src_path}"r5 T)�shell)� event_typer �stringr1 r, �is_process_runningZ is_directoryZsrc_pathr* �hasattrr6 �safe_substitute� subprocess�Popenr- r+ �waitr r/ �add� functools�partial�discardZ process_termination_callback�start)r r r1 Z object_type�context�command�process_watcherr r r r � s6 z ShellCommandTrick.on_any_eventc C s | j p | jd k o | j�� d kS )N)r/ r- �poll)r r r r r: � s z$ShellCommandTrick.is_process_running)NNNFFF)r r r r r) r r: � __classcell__r r )r0 r r$ r s )r$ c sf e Zd ZdZdddejdddf� fdd� Zd d � Zd d � Zd d� Z dd� Z e dd� �Z dd� Z � ZS )�AutoRestartTricka Starts a long-running subprocess and restarts it on matched events. The command parameter is a list of command arguments, such as `['bin/myserver', '-c', 'etc/myconfig.ini']`. Call `start()` after creating the Trick. Call `stop()` when stopping the process. NF� r Tc s� |dk rt d��|dk r t d��t� j|||d� || _|| _|| _|| _|| _d | _d | _ d | _ d| _ d| _ d| _ t�� | _d S )Nr z kill_after must be non-negative.z/debounce_interval_seconds must be non-negative.)r% r& r' F)� ValueErrorr( r) rF � stop_signal� kill_after�debounce_interval_seconds�restart_on_command_exitr- rG �event_debouncer� restart_count�_is_process_stopping�_is_trick_stopping� threading�RLock�_stopping_lock) r rF r% r& r' rM rN rO rP )r0 r r r) � s( zAutoRestartTrick.__init__c s4 � j r(t� j � fdd�d�� _� j�� � �� d S )Nc s � � � S )N)�_restart_process)�events)r r r r � r z(AutoRestartTrick.start.<locals>.<lambda>)rO Zevents_callback)rO r rQ rD �_start_process)r r )r r rD � s zAutoRestartTrick.startc C sl | j � | jrd S d| _W d Q R X | j}| jd k r<| j�� | �� | jd k rX| j�� |d k rh|�� d S )NT)rW rT rG rQ �stop� _stop_process�join)r rG r r r r[ � s zAutoRestartTrick.stopc C sH | j r d S tj| jttdd �d�| _| jrDt| j| j �| _ | j � � d S )N�setsid)� preexec_fn) rT r= r> rF �getattr�osr- rP r rX rG rD )r r r r rZ s z AutoRestartTrick._start_processc C s� | j � | jrd S d| _W d Q R X z�| jd k r>| j�� d | _| jd k r�yt| jj| j� W n tk rp Y ndX t � � | j }xRt � � |k r�| j� � d k r�P t � d� q�W yt| jjd� W n tk r� Y nX d | _W d d| _X d S )NTg �?� F) rW rS rG r[ r- � kill_process�pidrM �OSError�timerN rH �sleep)r Z kill_timer r r r\ s0 z AutoRestartTrick._stop_processc C s2 |j tkrd S | jd k r&| j�|� n| �� d S )N)r8 r rQ Z handle_eventrX )r r r r r r 3 s z AutoRestartTrick.on_any_eventc C s, | j r d S | �� | �� | jd7 _d S )N� )rT r\ rZ rR )r r r r rX > s z!AutoRestartTrick._restart_process)r r r r �signal�SIGINTr) rD r[ rZ r\ r# r rX rI r r )r0 r rJ � s " rJ �winc C s t �t �| �|� d S )N)ra �killpg�getpgid)rd rM r r r rc H s rc c C s t �| |� d S )N)ra �kill)rd rM r r r rc M s ) r � __future__r rA �loggingra ri r= �sysrU rf Zwatchdog.eventsr r Zwatchdog.utilsr Z watchdog.utils.event_debouncerr Z watchdog.utils.process_watcherr � getLoggerr r rB r# r r r$ rJ �platform� startswithrc r r r r �<module>( s. 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