[Bug 1581351] Re: Improve deltas for click packages (puritine)

[Pat McGowan]

@kgunn,  not sure how to approach this

** Changed in: canonical-devices-system-image
   Importance: Undecided => High

** Changed in: canonical-devices-system-image
       Status: New => Confirmed

** Changed in: canonical-devices-system-image
     Assignee: (unassigned) => kevin gunn (kgunn72)

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https://bugs.launchpad.net/bugs/1581351

Title:
  Improve deltas for click packages (puritine)

Status in Canonical System Image:
  Confirmed
Status in Developer registration portal:
  New
Status in Puritine:
  Invalid
Status in click package in Ubuntu:
  New
Status in system-image package in Ubuntu:
  New

Bug description:
  Currently if the version of a click package changes, the full click package is included in the delta, which may result in huge delta updates.
  It's minor for most of the click packages. But in the case of ubuntu-pd and the puritine click it means we are delivering all of puritine and the apps in the libertine container even for a single file change in the click package. It's an OTA of 350MB and 1.5GB to uncompress on disk on the tablet.

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