[Bug 830492] Re: Downloads should not lock apt

[James Haigh]

"Your local hacks are not part of APT, so do not assign bugs for your
personal hacking projects."

Sorry Julian, I just wanted to help.

However, they won't be "local" and they won't be "hacks" any more than
APT is a 'hack' for dpkg.

** Also affects: aptboost
   Importance: Undecided
       Status: New

** Changed in: aptboost
       Status: New => In Progress

** Changed in: aptboost
   Importance: Undecided => Critical

** Changed in: aptboost
     Assignee: (unassigned) => James Haigh (james.r.haigh)

** Changed in: synaptic
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/830492

Title:
  Downloads should not lock apt

Status in APT:
  New
Status in Aptboost:
  In Progress
Status in The synaptic package manager:
  Confirmed
Status in “apt” package in Ubuntu:
  New
Status in “synaptic” package in Ubuntu:
  New

Bug description:
  It should be possible to download while installing, or download 2
  things at once.

  Currently an apt-get command with '--download-only' will lock apt
  (/var/lib/dpkg/lock). Synaptic even locks apt just by being open!

  Examples:
  * I might be updating my system. The update is still in the download stage, and I want to download and install a small package for something. Currently I would have to stop the download, install the package, and resume the download.
  * I'm installing lots of application from the Software Centre. While 1 app is installing the next should be downloading.
  * Run apt-get from command line while browsing software in Synaptic.

  To avoid multiple instances of apt downloading the same file, each
  partial file should have it's own lock (For example,
  /var/cache/apt/archives/partial/inkscape_0.48.1-2ubuntu2_i386.deb
  would have inkscape_0.48.1-2ubuntu2_i386.lock). It may also be
  necessary to prevent updating package lists (sudo apt-get update) when
  any download lock exists as well as apt's main lock.

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