topgit breaks git trees if later purged

[Emmet Hikory]

Binary package hint: topgit

Installing topgit, reading the help in a git tree, and purging topgit results in the git tree being unable to commit due to an unsafe hook being added.

Test Case:
$ mkdir tg-test
$ cd tg-test
$ git init
$ echo 1 > 1
$ git add 1
$ git commit -a -m .
$ sudo apt-get install topgit
$ tg help
$ sudo dpkg -P topgit
$ echo 2 > 2
$ git commit -a -m

Note that in the second case, one is not committing the file "2", but just commiting with no changes. (git add has not been run).

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: topgit 0.8-1
ProcVersionSignature: Ubuntu 2.6.32-21.31-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic x86_64
Architecture: amd64
Date: Fri Apr 16 20:33:23 2010
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: topgit

[Emmet Hikory (persia)]

The attached patch was constructed based on the patch in the Debian bug.

[Martin Pitt (pitti)]

Syntax error in changelog, closing manually.

 topgit (0.8-1ubuntu1) lucid; urgency=low
 .
   * Apply patch from Carsten Hey to conditionally execute hook
     only if topgit is actually available on the system (LP: 564616)