How to get git-completion.bash to work on Mac OS X?

Question

I have followed http://blog.bitfluent.com/page/3 to add git-completion.bash to my /opt/local/etc/bash_completion.d/git-completion

and I put PS1='\h:\W$(__git_ps1 "(%s)") \u\$ ' in my .bashrc_profile

But now I am getting this -bash: __git_ps1: command not found everything I do a cd.

Can you please tell me what am I missing?

Answer 1

I installed git using MacPorts on my new Snow Leopard installation. After MacPorts is installed from the .dmg image, these would be the commands in Terminal.app:

sudo port selfupdate
sudo port install git-core +bash_completion

If you also want support for pulling from SVN repositories and docs, use this instead of the second line:

sudo port install git-core +bash_completion +doc +svn

Then add the following to your ~/.profile or ~/.bash_profile:

# MacPorts Bash shell command completion
if [ -f /opt/local/etc/bash_completion ]; then
    . /opt/local/etc/bash_completion
fi

Answer 2

All you need to do is place the git-completion.bash file in your user home bin directory and place the following in you .profile or .bash_profile file:

export PATH="$HOME/bin:$PATH"
source ~/bin/git-completion.bash
PS1='[\u@\h \w$(__git_ps1 " (%s)")]\$ '

What this does is make sure that your local bin is in the PATH and the source command gets things going. Then of course the PS1 change puts the currently checked out branch in the prompt.

So, no MacPort install to then install a the "completion" version of GIT (especially irritating if you already have it installed).

Answer 3

If you installed git using homebrew than you might adjust the MacPorts advice a little and add this to your .bashrc

if [ -f `brew --prefix`/etc/bash_completion.d/git-completion.bash ]; then
. `brew --prefix`/etc/bash_completion.d/git-completion.bash
fi

The best way to check if you have git correctly installed using homebrew ist to execute

brew info git

and check the output for the install directory of the git bash completion

Answer 4

You need to source the command completion functions. Add to your .bashrc_profile before the PS1:

. /opt/local/etc/bash_completion.d/git-completion

Answer 5

I think you maybe forget sourcing the file in your loged .bashrc

Answer 6

In addition to Adam K. Johnson's post

You can also put the following...

# MacPorts Bash shell command completion
if [ -f /opt/local/etc/bash_completion ]; then
    . /opt/local/etc/bash_completion
fi

...in your /etc/profile, if you want.

That way all users on the system will benefit from any bash completion scripts installed in the directory "/opt/local/etc/bash_completion.d/".