Currently add-apt-repository also has --remove option which removes the .list file (or entry?), but does not remove/downgrade packages.
** Description changed: Assume you're frequently testing software, so you add, remove (purge) and re-add PPAs. - sudo add-apt-repository lp:someteam/ppa + sudo add-apt-repository ppa:someteam/ppa sudo apt-get uppdate sudo apt-get install someprogram ... time passes and you no longer need that program, or wish to test your system without it .. - sudo ppa-purge lp:someteam/ppa + sudo ppa-purge ppa:someteam/ppa This will remove the ppa by commenting out the "deb ..." line in the sources file in /etc/apt/sources.list.d Later, you need to do more testing of the app or some other app from the same ppa so you re-add it:- - sudo add-apt-repository lp:someteam/ppa + sudo add-apt-repository ppa:someteam/ppa However, this does _not_ add the PPA because the line/file already exists, albeit with a # in front of the "deb ...". Some might argue that it is the fault of ppa-purge for commenting the line out. I disagree. I believe ppa-purge _should_ comment out the "deb ..." line because sometimes you want to go back to the file to remind yourself what the ppa was that you got something from, or to just manually re-enable it. Given the single role of add-apt-repository is to add a ppa, I'd conclude it's add-apt-repository which is broken, given it doesn't add one in this common scenario. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: software-properties-common 0.92.17 ProcVersionSignature: Ubuntu 3.8.0-14.24-generic 3.8.4 Uname: Linux 3.8.0-14-generic x86_64 ApportVersion: 2.9.2-0ubuntu4 Architecture: amd64 Date: Mon Mar 25 21:39:42 2013 EcryptfsInUse: Yes InstallationDate: Installed on 2012-06-29 (269 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) MarkForUpload: True PackageArchitecture: all SourcePackage: software-properties UpgradeStatus: Upgraded to raring on 2013-01-18 (66 days ago) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1160048 Title: add-apt-repository won't uncomment a commented-out source To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1160048/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
