__git_ps1 not found after upgrade to Fedora 18

Posted by Amit Shah on November 20, 2012

If you have enabled git information in the shell prompt (like branch name, working tree status, etc.) [1], an upgrade to F18 breaks this functionality.  What's worse, __git_ps1 (a shell function) isn't found, and a yum plugin goes looking for a matching package name to install, making running any command on the shell *very* slow.

A workaround, till the bug is fixed, is to do:

ln -s /usr/share/git-core/contrib/completion/git-prompt.sh  /etc/profile.d/

Bug 878428, if you want to track progress.

[1] To add such git information in the shell display (for bash), add this to your .bashrc file:

export GIT_PS1_SHOWDIRTYSTATE=true
export GIT_PS1_SHOWUNTRACKEDFILES=true
export PS1='\[
33[00;36m\]\u@\h\[
33[00m\]:\[
33[01;34m\] \w\[
33[00m\]$(__git_ps1 " (%s)")\$ '