repo_description: :shell: Portable Unix shell commands for Node.js
repo_topics: bash javascript node nodejs shell shelljs unix
code: require('./global');
  
  global.config.fatal = true;
  global.target = {};
  
  var args = process.argv.slice(2),
    targetArgs,
    dashesLoc = args.indexOf('--');
  
  // split args, everything after -- if only for targets
  if (dashesLoc > -1) {
    targetArgs = args.slice(dashesLoc + 1, args.length);
    args = args.slice(0, dashesLoc);
  }
  
  // This ensures we only execute the script targets after the entire script has
  // been evaluated
  setTimeout(function() {
    var t;
  
    if (args.length === 1 && args[0] === '--help') {
      console.log('Available targets:');
      for (t in global.target)
        console.log('  ' + t);
      return;
    }
  
    // Wrap targets to prevent duplicate execution
    for (t in global.target) {
      (function(t, oldTarget){
  
        // Wrap it
        global.target[t] = function() {
          if (!oldTarget.done){
            oldTarget.done = true;
            oldTarget.result = oldTarget.apply(oldTarget, arguments);
          }
          return oldTarget.result;
        };
  
      })(t, global.target[t]);
    }
  
    // Execute desired targets
    if (args.length > 0) {
      args.forEach(function(arg) {
        if (arg in global.target)
          global.target[arg](targetArgs);
        else {
          console.log('no such target: ' + arg);
        }
      });
    } else if ('all' in global.target) {
      global.target.all(targetArgs);
    }
  
  }, 0);
  