EVOLUTION-MANAGER
Edit File: FileUtils.cpython-36.pyc
3 x?ag11 � @ s� d Z ddlmZ ddlmZ ddlmZ ddlmZ ddlZddlZddlZddl Z ddl Z ddl Z ddl Z ddl Z ddlZddlmZ dd lmZmZ ejd � G d d � d e�ZG d d� de�ZG dd� de�ZG dd� de�ZdS )z� FileUtils - Provides dmmgmnt file-related capabilities. $Id: //eng/vdo-releases/aluminum/src/python/vdo/utils/FileUtils.py#4 $ � )�absolute_import)�division)�print_function)�unicode_literalsN� )�Command)�Timeout� TimeoutErrorZutilsc s` e Zd ZdZejd�Zedd� �Z� fdd�Z dd� Z d d � Z ed d � �Z e j d d � �Z � ZS )�FileBasez�The FileBase object; provides basic file control. Class attributes: log (logging.Logger) - logger for this class Attributes: None zutils.FileBasec C s | j S )N)�_FileBase__filePath)�self� r � /usr/lib/python3.6/FileUtils.py�path= s z FileBase.pathc s. t t| �j� tjj|�| _|jdd�| _dS )z: Arguments: None Returns: Nothing �fdN) �superr �__init__�osr �realpathr �get� _FileBase__fd)r �filePath�args�kwargs)� __class__r r r D s zFileBase.__init__c C s | S )Nr )r r r r � __enter__P s zFileBase.__enter__c C s dS )NFr )r � exceptionType�exceptionValue� tracebackr r r �__exit__T s zFileBase.__exit__c C s | j S )N)r )r r r r �_fd[ s z FileBase._fdc C s || _ d S )N)r )r �valuer r r r b s )�__name__� __module__� __qualname__�__doc__�logging� getLogger�log�propertyr r r r r �setter� __classcell__r r )r r r 0 s r c s> e Zd ZdZejd�Z� fdd�Z� fdd�Zdd� Z � Z S ) � FileTouchz�The FileTouch object; touches the file. Class attributes: log (logging.Logger) - logger for this class Attributes: None zutils.FileTouchc s t t| �j|f|�|� dS )z: Arguments: None Returns: Nothing N)r r, r )r r r r )r r r r | s zFileTouch.__init__c sj t t| �j� | jdkrftjj| j�}tj|tj�sNt dddd|g�}|j � tj| jtj�sf| j � | S )z0Make certain the file exists and return ourself.N�mkdirz-pz-mZ755) r r, r r r r �dirname�access�F_OKr �run� _createFile)r ZdirPath�cmd)r r r r � s zFileTouch.__enter__c C s t d| jg�}|j� dS )zCreates the targe file.ZtouchN)r r r1 )r r3 r r r r2 � s zFileTouch._createFile) r" r# r$ r% r& r' r( r r r2 r+ r r )r r r, k s r, c s� e Zd ZdZejd�Zedd� �Zdd� Z d%dd �Z d'd d �Z d(d d�Z e jfdd�Zd)dd�Zdd� Zdd� Zdd� ZeZ� fdd�Z� fdd �Zd*� fd d � Zd d!� Zed"d#� �Z� ZS )+�FileOpenz�The FileOpen object; provides basic access to a file. Class attributes: log (logging.Logger) - logger for this class Attributes: None zutils.FileOpenc C s | j S )N)�_FileOpen__file)r r r r �file� s z FileOpen.filec C s | j j� d S )N)r6 �flush)r r r r r7 � s zFileOpen.flushr c C s | j j|�S )N)r6 �read)r � numberOfBytesr r r r8 � s z FileOpen.readc C s | j j|�S )N)r6 �readline)r r9 r r r r: � s zFileOpen.readlineNc C s" |d kr| j j� S | j j|�S d S )N)r6 � readlines)r ZnumberOfBytesHintr r r r; � s zFileOpen.readlinesc C s | j j||� d S )N)r6 �seek)r �offset�whencer r r r< � s z FileOpen.seekc C s$ |d kr| j j� n | j j|� d S )N)r6 �truncate)r �sizer r r r? � s zFileOpen.truncatec C s | j j|� d S )N)r6 �write)r �stringr r r rA � s zFileOpen.writec C s | j j|� d S )N)r6 Z writeline)r ZsequenceOfStringsr r r � writelines� s zFileOpen.writelinesc C s t | j�S )N)�nextr6 )r r r r �__next__� s zFileOpen.__next__c s@ t t| �j� | jdkr*tj| j| j�| _tj| j| j �| _ | S )z!Open the file and return ourself.N) r r4 r r r �openr �_osMode�fdopen�_FileOpen__moder5 )r )r r r r � s zFileOpen.__enter__c s | j j� tt| �j|||�S )z Close the file.)r6 �closer r4 r )r r r r )r r r r � s zFileOpen.__exit__�rc s� t t| �j|f|�|� d}t|�dkr@d|dd� kr@tj}n4|d dkrTtj}n |d dkrntjtjB }ntj}|d dkr�|tj B }d| _ || _ || _ dS )z: Arguments: None Returns: Nothing Nr �+r rK �w�a) r r4 r �lenr �O_RDWR�O_RDONLY�O_WRONLY�O_TRUNC�O_APPENDr5 rI �_FileOpen__osMode)r r �moder r ZosMode)r r r r s zFileOpen.__init__c C s | S )Nr )r r r r �__iter__ s zFileOpen.__iter__c C s | j S )N)rU )r r r r rG $ s zFileOpen._osMode���)rX rX )rX )N)N)rK )r" r# r$ r% r& r' r( r) r6 r7 r8 r: r; r �SEEK_SETr< r? rA rC rE rD r r r rW rG r+ r r )r r r4 � s$ r4 c sD e Zd ZdZejd�Zd � fdd� Z� fdd�Z� fdd �Z � Z S ) �FileLocka The FileLock object; a context manager providing interlocked access on a file. The file is created, if necessary. Class attributes: log (logging.Logger) - logger for this class Attributes: _timeout - timeout in seconds (None = no timeout) zutils.FileLockNc s t t| �j||� || _dS )z� Arguments: filePath - (str) path to file mode - (str) open mode timeout - (int) timeout in seconds; may be None Returns: Nothing N)r rZ r �_timeout)r r rV Ztimeoutr r )r r r r B s zFileLock.__init__c s� t t| �j� | jtjkr&tj}d}n tj}d}| j dk r�| j j dj | j | j |d�� t| j td�j | j | j d��� tj| j|� W dQ R X n&| j j dj | j |d �� tj| j|� | S ) z_If the open mode is read-only the file is locked shared else it is locked exclusively. ZsharedZ exclusiveNz'attempting to lock {f} in {s}s mode {m})�f�s�mz!Could not lock {f} in {s} seconds)r\ r] z attempting to lock {f} mode {m})r\ r^ )r rZ r rG r rQ �fcntlZLOCK_SHZLOCK_EXr[ r( �debug�formatr r �_�flockr6 )r Z flockModeZlockModeString)r r r r O s( zFileLock.__enter__c sB t j| jt j� |tk r.| jjdj| jd�� t t | �j |||�S )z Unlocks and closes the file.zreleased lock {f})r\ ) r_ rc r6 ZLOCK_UNr r( r` ra r r rZ r )r r r r )r r r r l s zFileLock.__exit__)N) r" r# r$ r% r& r' r( r r r r+ r r )r r rZ . s rZ )r% Z __future__r r r r �errnor_ �gettextZgrpr& r �statZtempfileZtimer r r Zinstall�objectr r, r4 rZ r r r r �<module> s* ;=