text: var path = require('path');
  var fs = require('fs');
  
  var bss_walk_sync = function(dir, filelist,cat) {
      files = fs.readdirSync(dir);
      filelist = filelist || [];
      cat = cat || '';
      files.forEach(function(file) {
          if (fs.statSync(path.join(dir, file)).isDirectory()) {
            var base_cat = cat + file + '.'
            filelist = bss_walk_sync(path.join(dir, file), filelist,base_cat);
          }
          else {
            if(path.extname(file) == '.bss'){
              var storage = cat + path.basename(file,'.bss');
              filelist.push(storage);
            }
          }
      });
      return filelist;
  };
  
  function name2path(name){
    return name.split('.').join('/');
  }
  
  
  module.exports.list = function (repo)
  {
    return bss_walk_sync(repo)
  }
  
  /*
  module.exports.mkBssId = function(repo,name,opt)
  {
  
    var prefix_dir = repo + '/' + name.split('.').slice(0,-1).join('/');
    var dirlist = fs.readdirSync(dir);
    var found_storage = [];
    dirlist.forEach((file)=>{
  
    });
  }
  */