key generator loops forever when it cannot write to pubring.gpg

[Christopher Yeleighton]

My file .gnupg/pubring.gpg was not writeable. I ran { gpg2 --gen-key; } and it happily collected random bytes; however, it was unable to save them in the end, so it would just restart. The error message reported by gpg2 is invisible when it is run by Enigmail; the result is that the progress bar restarts forever. The key generator should detect such a problem and fail early instead of letting the operator wait forever.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gpgv2 (not installed)
ProcVersionSignature: Ubuntu 3.13.0-62.102-generic 3.13.11-ckt24
Uname: Linux 3.13.0-62-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.13
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Sep 23 00:09:08 2015
InstallationDate: Installed on 2014-08-20 (398 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: gnupg2
UpgradeStatus: No upgrade log present (probably fresh install)