[Bug 1212713] Re: Add a --dry-run option to cli

[Barry Warsaw]

** Changed in: system-image (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1212713

Title:
  Add a --dry-run option to cli

Status in Ubuntu system image (server/client/updater):
  Fix Released
Status in “system-image” package in Ubuntu:
  Fix Released

Bug description:
  --dry-run would return a string containing the winning candidate
  upgrade path.  I'm thinking about something like:

  start:[delta1:delta2...:]end

  e.g.

  20130700:20130701:20130702:20130703

  which would mean:

  - we start at 20130700
  - two deltas would be applied: 20130701 and 20130702 
  - we would end at 20130703

  We might also want to put this in a log file even if --dry-run wasn't
  used.

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