vimperatorのプラグイン管理を考えてみた ref: http://qiita.com/ssh0/items/8251c24b51a53d5c93d4

file0.txt

" set the root dir for loading plugins(you can set multiple directories)
let g:plugin_loader_roots = "~/.path/to/vimperator/plugins,~/path/to/another/plugins"

" specify the plugin you use (you can omit '.js')
let g:plugin_loader_plugins = "plugin1,plugin2"

file1.vim

source ~/.vimperator/vimppm/vimppm/plugin/vimppm.js " vimppmを置いた場所

vimppm "plugin1.js"
vimppm "plugin2.js"

file2.vim

source ~/.vimperator/vimppm/vimppm/plugin/vimppm.js " vimppmを置いた場所

vimppm "plugin1.js"
vimppm "plugin2.js"

vimppm.js

function getVimppmDir() {
    var vimperatorDir = io.File(io.File.expandPath("~/.vimperator"));

    // if (vimperatorDir.exists()) return "~/.vimperator/vimppm";
    if (vimperatorDir.exists()) return "~/.vimperator/plugin";

    vimperatorDir = io.File(io.File.expandPath("~/vimperator"));

    // if (vimperatorDir.exists()) return "~/vimperator/vimppm";
    if (vimperatorDir.exists()) return "~/vimperator/plugin";

    vimperatorDir = io.File(io.File.expandPath("~/_vimperator"));

    if (vimperatorDir.exists())
        // return "~/_vimperator/vimppm";
        return "~/_vimperator/plugin";
    else
        return false;
}