function isRepoSync(dir){
  var dirs

  if (dir instanceof Array){
    dirs = dir
  } else {
    dirs = getDirectoriesSync(dir)
  }

  var res = dirs.filter(function(name){ 
    return name.match(/\.epm/ig)
  });
  return res.length > 0;
}
function isRepoSync(dir){
  var dirs

  if (dir instanceof Array){
    dirs = dir
  } else {
    dirs = getDirectoriesSync(dir)
  }

  var res = dirs.filter(function(name){ 
    return name.match(/\.epm/ig)
  });
  return res.length > 0;
}
function isRepoSync ( dir ) { var dirs if ( dir instanceof Array ) { dirs = dir } else { dirs = getDirectoriesSync ( dir ) } var res = dirs . filter ( function ( name ) { return name . match ( / \.epm / ig ) } ) ; return res . length > 0 ; }
Define if `dir` is a Epm repository

@param {String} dir
Define if dir is a Epm repository