A vim function that will load a per-git-project vimrc.

gistfile1.sh

vim ()
{
    local vimrc="vimrc" # Name you want to use for your vimrc in .git/
    local v="$(which vim)" # Or whatever vim you want
    local g="$(__gitdir)" # This comes from the git bash completion script

    if [ -z "${g-}" ]; then
        "${v}" "$@"
    else
        local vrc="${g}/${vimrc}"
        if [ -r "${vrc}" ]; then
            "${v}" -S "${vrc}" "$@"
        else
            "${v}" "$@"
        fi
    fi
}