vcs_git() {
    if [ ! -d "$dir_source/$name/vcs" ]; then
        rm -rf "$dir_source/$name/vcs"
        git clone --recursive --depth=1 "$1" "$dir_source/$name/vcs"
        vcs_compile=true
    fi
}

_hook_git() {
    cd "$dir_source/$name/vcs"

    git remote update
    if [ "$(git rev-parse @)" != "$(git rev-parse @{u})" ]; then
        git pull
        vcs_compile=true
    fi
    version="$(git rev-list HEAD --count)-$(git rev-parse --short HEAD)"
    cd "$OLDPWD"
}

_hooks="_hook_git"