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ƒ r®t j d ƒ d t j d <n d S( sà setup the environment based on the config and options
It will use
config("Aufs","Enabled") - to show if its enabled
and
config("Aufs","RWDir") - for the writable overlay dir
s aufsOptionsAndEnvironmentSetup()s& enabling full overlay from commandlinet Aufst Enabledt Truet EnableFullOverlayt prefixs upgrade-rw-t RWDirs using '%s' as aufs_rw_dirt RELEASE_UPGRADE_AUFS_RWDIRs upgrade-chroot-ií t ChrootDirs using '%s' as aufs chroot dirs( enabling aufs full overlay (from config)t 1t% RELEASE_UPGRADE_USE_AUFS_FULL_OVERLAYt EnableChrootOverlays enabling aufs chroot overlayt RELEASE_UPGRADE_USE_AUFS_CHROOTt EnableChrootRsyncs, enable aufs chroot rsync back to real systemt! RELEASE_UPGRADE_RSYNC_AUFS_CHROOTN( t loggingt debugt useAufst sett tempfilet mkdtempt getWithDefaultt ost environt chmodt False( t optionst configt tmprwt aufs_rw_dirt tmpchroott aufs_chroot_dir( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt aufsOptionsAndEnvironmentSetup s2
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S( s4 helper that bind mounts a given dir to a new place s --rbinds --bindt mounts cmd: %si s& Failed to bind mount from '%s' to '%s'( R t patht existst makedirsR R t
subprocesst callt errorR R ( t from_dirt to_dirt rbindt bindt cmdt res( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt
_bindMount/ s t /c C s t j j | | ƒ s* t j | | ƒ n t j j | | ƒ sT t j | | ƒ n t } | r d d d d d | | | f d | | g } n- d d d d d | | | f d | | g } t j | ƒ } | d k rí t j d
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helper that takes a target dir and mounts a rw dir over it, e.g.
/var , /tmp/upgrade-rw
R s -tt overlayfss -os upperdir=%s,lowerdir=%st nonet aufss br:%s:%s=roi s( Failed to mount rw aufs overlay for '%s's cmd '%s' return '%s' ( R R! R" R# R R$ R% R R& R R ( t targett rw_dirt
chroot_dirt
use_overlayfsR+ R, ( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt _aufsOverlayMount@ s,
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Wt S( s< test if the given dir is already mounted with aufs overlay s /proc/mountsR0 R1 ( t opent splitR R ( t dirt linet devicet
mountpointt fstypeR t at b( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt
is_aufs_mount_ s
$c C s[ t j d | | f ƒ x= | D]5 } | j d ƒ s@ | d 7} n | j | ƒ r t Sq Wt S( sD helper: check if the given mountpoint is a submount of a systemdir s is_submount: %s %sR. ( R R t endswitht
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systemdirst d( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt is_submountg s
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helper that rsyncs the changes in the aufs chroot back to the
real system
iÿÿÿÿ( t SYSTEM_DIRSt rsyncs -aHAXs --dels -vs
--progresss /%s/%s/s /%s/s
running: '%s's rsync back result for %s: %i(
t DistUpgradeMainRP R R! R" R R R$ R% R ( R RP RD R+ t ret( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt doAufsChrootRsyncy s
c C s1 t | | ƒ s t St j | ƒ t j d ƒ t S( s: helper that sets the chroot up and does chroot() into it R. ( t setupAufsChrootR R t chroott chdirR ( R R ( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt doAufsChrootŒ s
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