My git config.

.gitconfig

# great tips from http://cheat.errtheblog.com/s/git and
# http://mislav.uniqpath.com/2010/07/git-tips/
[color]
    ui = auto
[color "branch"]
    current = red bold
    local = blue
    remote = green
[color "diff"]
    meta = black
    frag = magenta
    old = red
    new = green
    whitespace = red reverse
[color "status"]
    added = green bold
    changed = yellow bold
    untracked = cyan bold
[core]
    # tabs are an error, as are trailing spaces
    whitespace=tab-in-indent,trailing-space

[alias]
    st = status
    ss = status -sb
    ci = commit
    br = branch
    co = checkout
    df = diff
    lg = log -p
    ls = log --oneline --decorate
    lol = log --graph --decorate --pretty=oneline --abbrev-commit
    lola = log --graph --decorate --pretty=oneline --abbrev-commit --all
    ls = ls-files