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fssnapshots.pyc
� � v_c @ s� d d l Z d d l Z d d l Z d d l m Z d d l Z d d l m Z yr d d l Z e j � Z e j � d Z e j d � d Z e e e e j d � � � Z e d k r� d Z n Wn d Z d Z n Xe d k r d d l m Z d e f d � � YZ n d Z d � Z d � Z d � Z d � Z d � Z d d � Z d � Z d � Z d � Z d � Z d e f d � � YZ d S( i����N( t datetime( t _i t (t .i ic ( t LibLVMErrort _ResultErrorc B s e Z d Z RS( s> Exception raised for LVM calls resulting in bad return values.( t __name__t __module__t __doc__( ( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyR s c C s, | j � } | d s d S| d d d k S( Ni t ot O( R R ( t getAttrt None( t lvt snap( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt _is_origin% s c C s, | j � } | d s d S| d d d k S( Ni t st S( R R ( R R ( R R ( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt _is_snap, s c C s, | j � } | d s d S| d d d k S( Ni t v( R R ( R R ( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt _is_virt3 s c C s y | j | � SWn d SXd S( N( t lvFromNameR ( t vgt lvname( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt _vg_name2lv: s c C s y t j � } Wn t k r) g } n X| st j d d d d g d t j d t j �} | j � } | r� t t d � � � n | j � d } | j d � } | s� g S| d j � } | d k r� g Sg } x2 | d D]# } | s� Pn | j | j � � q� Wn | S( Ns /sbin/lvmt vgss -ot vg_namet stdoutt stderrs# Failed to obtain volume group namesi s t VGi ( t lvmt listVgNamesR t subprocesst Popent PIPEt waitR R t communicatet splitt stript append( t namest pt errt outputt headert name( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt _list_vg_names@ s. c C s� t | � d k r� t | d d !� d } | t | d d !� 7} | d 9} | d d k rg | | 8} n | d d k r� | | 7} q� n | S( Ni i i i< i t +t -( t lent int( t zt ctimet off( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt _z_off] s c C s� y� | j � \ } } } t j | d | d � } t j | � } t r� t j d � } | | k r� t | � } t | � } | | | 7} q� n Wn d } n X| S( Nt s %Y-%m-%d %H:%M:%Ss %zi ( R% t timet strptimet mktimet Falset strftimeR6 ( R4 t dt tR3 t cur_z( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt _lv_ctime2utch s c C s� | j � } | j � } | j � } | j d � d } | j � } t | j d � d � } | j d � d } t | � } | d } i d | | f d 6| d 6| d 6d | | f d 6| j � d 6| d 6| d 6| d 6} | S( Nt origini t lv_timet snap_percenti i� s %s/%st devR4 t origin_devt freet tagst sizet usedi� i@B ( t getNamet getSizet getPropertyt getTagsR@ t floatt getFreeSize( R R t vgnameR RH RA RG R4 RI t data( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt _lv_data{ s$ c s � f d � } | S( s7 Decorator for _FSSnap methods that logs LVM tracebacks.c sS y � | | | � SWn8 t k rN } | j d k rH | j j | � n � n Xd S( N( R t _loggerR t exception( t selft argst kwargst e( t func( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt wrap� s ( ( RY RZ ( ( RY s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt _log_traceback� s c C s@ t | � t k r2 t | j � d k r2 | j d St | � Sd S( s; Convert a LibLVMError instance to a readable error message.i i N( t typeR R1 RV t str( t exc( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt lvmerr2str� s ' t _FSSnapc B s� e Z d e d d d � Z e d � � Z d d � Z e d d � � Z e d d d i d � � Z e d � � Z e g d � � Z RS( t /s !*/swaps !*/lv_swapc C s� t s t j � r g } n t | _ t t o= t j j d � � | _ d | _ d | _ | | _ | | _ d | _ | | _ | j s� d Sd S( Ns /sbin/lvmt _yum_( R t ost geteuidt _vert versiont boolt patht existst availablet postfix_staticR t _postfixt _roott _devst _vgname_listRS ( RU t roott lookup_mountst devicest logger( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt __init__� s ! c C s4 | j d k r- | j r! t � n g | _ n | j S( N( Ro R Rj R. ( RU ( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt _vgnames� s c C s | d k r+ t | � s$ t | � r+ t Sn t } x� | j D]� } d | k rS q; n t } | d d k r� t } t } | d } n | j d d � \ } } d | k r� q; n t j | | � s� q; n | d k r� | S| d k r� d S| j � } t j | | � s q; n | SW| S( NRa i t !i t *( R R R R; Rn t TrueR% t fnmatchRJ ( RU RP R t found_negRD t negt vgnt lvnR ( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt _use_dev� s4 id c C s� t } x� | j D]� } | j | � } | d k r> | r> q n t j | d � } | so t t d � | � � n | j � } d } x< | j � D]. } | j | | � s� q� n | | j � 7} q� W| j � | s� q n t } | | d | k r t Sq W| S( s0 See if we have enough space to try a snapshot. t rs( Unknown error when opening volume group i id N( R; Ru R~ R R t vgOpenR R RO t listLVsRK t closeRx ( RU t percentaget retRP t useR t vgfsizet lvssizeR ( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt has_space� s, t c C s | d k r1 d | j t j � j d � f } n g } x�| j D]�} | j | � } | d k ro | ro qA n t j | d � } | s� t t d � | � � n xZ| j � D]L} | j � } | j | | � s� q� n d | | | f } | j | | j � | d � } | s3| j � t t d � | � � n d | | f } d | | f } t � } x� | | d f D]v } xm | j | g � D]Y } d | k r�| j d d � \ } } | | k r�q�n | j | � n | j | � q�WqlW| j | | f � q� W| j � qA W| S( sc Attempt to take a snapshot, note that errors can happen after this function succeeds. s %s%ss %Y%m%d%H%M%S.%ft ws( Unknown error when opening volume group s %s%s%sid s% Unknown error when creating snapshot s %s/%sRw t =i N( R Rk R t nowR< Ru R~ R R� R R R� RJ t snapshotRK R� t sett getR% t addt addTagR' ( RU R� t prefixt postfixRG R� RP R� R R R t nlvnamet nlvt odevt ndevt eq_tagst valt tagt eq_tag_keyt eq_tag_val( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyR� sF % c C s� g } x� | j D]� } t j | d � } | sG t t d � | � � n x< | j � D]. } t | � sl qT n | j t | | � � qT W| j � q W| S( s List data for old snapshots. R� s( Unknown error when opening volume group ( Ru R R� R R R� R R' RR R� ( RU R� RP R R ( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt old_snapshotsF s c C s! t s g Sg } i } xV | D]N } | j d � \ } } | | k rZ t | g � | | <q | | j | � q Wx� | D]� } t j | d � } | s� t t d � | � � n x_ | | D]S } t | | � } | s� q� n t | � s� q� n | j t | | � � | j � q� W| j � qv W| S( s Remove snapshots. Ra R� s( Unknown error when opening volume group ( R R% R� R� R� R R R R R' RR t removeR� ( RU Rr R� t togoRD RP R R R ( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt del_snapshots^ s0 ( s !*/swaps !*/lv_swapN( R R Rx R Rt t propertyRu R~ R[ R� R� R� R� ( ( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyR` � s '#4( i i ic ( Rc Ry R8 R R t yumR R t getVersionRe R% t tuplet mapR2 R R R R R R R R. R6 R@ RR R[ R_ t objectR` ( ( ( s3 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyt <module> s>