[Bug 1453330] Re: rewrite pull-[lp|debian|uca]-source

[Dan Streetman]

** Description changed:

  I've essentially re-written the pull-[lp|debian|uca]-source scripts,
  consolidating them all to use a common codebase and extending the
  functionality to allow pulling not only source but also debs, udebs, and
  ddebs.
  
  The updates also allow specifying binary package names, which the
  original pull-*-source didn't work with.
- 
- The pull-lp-[debs|udebs|ddebs] also allows downloading otherwise "gone"
- debs from Launchpad - for older packages where LP no longer lists the
- binaries as existing anymore.  They are actually still there, but
- getting their specific URL is tricky, and not possible from the normal
- LP web interface.  The new pull-lp-* scripts can handle it and will
- allow downloading any deb/udeb/ddeb for any older package.
  
  This also fixes bug 1700846, where pull-debian-source fails for older
  packages where the public key that the DSC was signed with no longer is
  in the keyring.
  
  This also allows actually getting ddebs for old packages - unlike
  ddebs.ubuntu.com, which only provides ddebs for the latest few package
  versions, pull-lp-ddebs will actually pull ddebs for all older package
  versions, meaning you can debug a problem without being forced to
  upgrade to the latest version of all relevant packages first.
  
  This also fixes various flake8/pylint failures when building in bionic.
  The current version (without my patches) no longer builds in bionic due
  to updates to flake8 and pylint causing ubuntu-dev-tools build failures.
- 
  
  Original description:
  
  Errors like the following are happening because Debian's DDE [1] is dead
  [2]:
  
  logan at logan-VMware:~$ pull-debian-source d-rats
  pull-debian-source: Error: Unable to retrieve package information from DDE: http://dde.debian.net/dde/q/udd/dist/d:debian/r:sid/p:d-rats/?t=json (<urlopen error [Errno -2] Name or service not known>)
  pull-debian-source: Error: Unable to find d-rats in Debian suite "sid".
  
  Maybe someone would be willing to host/maintain a new instance of DDE?
  Or is there another way to programmatically grab the Debian/Ubuntu
  source package name from the binary package name?
  
  [1] https://wiki.debian.org/DDE
  [2] https://lists.debian.org/debian-devel/2014/09/msg00603.html
  
  Related bugs:
   * bug 1508948:  pull-debian-source fails use of rmadison on wily

** Changed in: ubuntu-dev-tools (Ubuntu)
       Status: Triaged => In Progress

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https://bugs.launchpad.net/bugs/1453330

Title:
  rewrite pull-[lp|debian|uca]-source

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