"add-apt-repository -y" adds the PPA even if it doesn't exist

[Alin Andrei]

When using "add-apt-repsitory -y", the PPA is added even if it doesn't exist even though an error message is displayed. "-y" should "Assume yes to all queries" like its help says, but not if there's an error.

This does not occur when using "add-apt-repository" without "-y".

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: python-software-properties (not installed)
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
ApportVersion: 2.6.1-0ubuntu3
Architecture: amd64
Date: Wed Oct 17 02:22:45 2012
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120914)
SourcePackage: software-properties
UpgradeStatus: No upgrade log present (probably fresh install)

[Matt Fischer (mfisch)]

Here's an example:

sudo add-apt-repository -y ppa:fred/ppa
Error reading https://launchpad.net/api/1.0/~fred/+archive/ppa: Not Found

Then looking in /etc/apt/sources.list.d/
-rw-r--r-- 1 root root 120 Nov 13 20:59 fred-ppa-quantal.list