react-native deps

var content = require('fs').readFileSync('./jsbundle', 'utf8');
var text = content.slice(0);
var dx = "__d(";
var count = 0;
var graph = {};
while (text.indexOf(dx) > -1) {
  count++;
  //console.log('#' + count);
  var start = text.indexOf(dx);
  var end = text.slice(start + 2).indexOf(dx);
  //console.log(start, end + start + 2);
  var snipet = text.slice(start, end + start + 2);

  //console.log(snipet.slice(0, 10));
  var matched = snipet.match(/__d\(\'([^']+)\'/);
  modName =  (matched) ? matched[1] : null;
  //console.log(modName);
  text = text.slice(end + start + 2);
  if (modName) {
    graph[modName] = getDeps(snipet);
  }
}

//console.log(graph);

Object.keys(graph).forEach(function(name){
  graph[name].forEach(function(dep) {
    console.log(`"${name}" -> "${dep}";`);
  });
});


function getDeps(code) {
  var regs = [
      /require\s*\("([^"]*)"\)/,
      /require\s*\('([^']*)'\)/,
  ];
  var deps = [];

  code.split('\n')
    .filter(line => line.indexOf("require") > -1)
    .forEach(function(line) {
      regs.forEach(function(reg) {
        var matched = line.match(reg);
        if (!matched) return;
        deps.push(matched[1]);
      });
    });
    return deps;
}


// can copy the result to http://arborjs.org/halfviz/#