parse.js

parse.js

var utils = require('utils');

exports.execute = function(options) {
  var dir = utils.getFile(options.GAIA_DIR, 'ast');
  utils.ensureFolderExists(dir);
  var files = utils.ls(utils.getFile(options.GAIA_DIR, 'apps', 'system', 'js'), true);
  var moduleList = [];
  var output = dir.clone();
  output.append('system-dep.json');
  var result = 'digraph G {\n';

  function file2Module(strings) {
    var i = 0;
    var ch = '';
    var pre = '';
    while (i <= strings.length) {
      var character = strings.charAt(i);
      if (i === 0) {
        ch += character.toUpperCase();
      } else if (character === '_') {

      } else if (pre === '_') {
        ch += character.toUpperCase();
      } else {
        ch += character;
      }
      i++;
      pre = character;
    }
    return ch;
  };
  function module2File(strings) {
    var i = 0;
    var ch = '';
    while (i <= strings.length) {
      var character = strings.charAt(i);
      if (character !== character.toLowerCase()) {
        if (ch === '') {
          ch += character.toLowerCase();
        } else {
          ch += '_' + character.toLowerCase();
        }
      } else {
        ch += character;
      }
      i++;
    }
    return ch;
  };
  // First round: get module list
  files.forEach(function(file) {
    if (!file.leafName.contains('.js')) {
      return;
    }
    var fileName = file.leafName.substr(0, file.leafName.lastIndexOf('.')).toLowerCase();
    moduleList.push(file2Module(fileName));
  });
  dump(moduleList);

  // Second round: get file content
  files.forEach(function(file) {
    if (!file.leafName.contains('.js')) {
      return;
    }
    var fileName = file.leafName.substr(0, file.leafName.lastIndexOf('.')).toLowerCase();
    dump('parsing: ' + file.path + '\n');
    var content = utils.getFileContent(file);
    var ast = utils.scriptParser(content);
    var jstring = JSON.stringify(ast, null, 2);
    moduleList.forEach(function(module) {
      if (jstring.search('\"' + module + '\"') < 0) {
        return;
      }
      if (module2File(module) === fileName) {
        return;
      }
      dump(file2Module(fileName) + ' -> ' + module + ';\n');
      result = result + '\t' + file2Module(fileName) + ' -> ' + module + ';\n';
    });
  });
  result = result + '}';
  utils.writeContent(output, result);
}