plato/lib/cli.js

JavaScript source analysis and visualizer

'use strict';

// Node api
var fs = require('fs');

// External libs.
var getopt = require('posix-getopt');

// Local lib
var plato = require('./plato'),
    info = require('./info'),
    util = require('./util');

exports.exec = function(options, done) {
  if (typeof options === 'function') {
    done = options;
    options = undefined;
  }

  if (options) {
    Object.keys(options).forEach(function(key) {
      if (!(key in exports.args)) exports.args[key] = options[key];
    });
  }

  var files     = exports.args.files;
  var outputDir = exports.args.d.value;
  var platoOptions = {
    recurse : !!exports.args.r,
    q: !!exports.args.q,
    title : exports.args.t && exports.args.t.value,
    exclude : exports.args.x && new RegExp(exports.args.x.value),
    date : exports.args.D && exports.args.D.value
  };
  var json;
  var jshintrc = {};

  if (exports.args.l) {
    if (typeof exports.args.l.value === 'string') {
      json = fs.readFileSync(exports.args.l.value).toString();
      jshintrc = JSON.parse(util.stripComments(json));
    }
    platoOptions.jshint = { globals : jshintrc.globals || {} };
    delete jshintrc.globals;
    platoOptions.jshint.options = jshintrc;

  } else if (exports.args.e) {
    json = fs.readFileSync(exports.args.e.value).toString();
    jshintrc = JSON.parse(util.stripComments(json));
    platoOptions.eslint = jshintrc;
  }

  plato.inspect(files, outputDir, platoOptions, done);
};

exports.options = require('./cli/options');

exports.args = parseArgs(exports.options);


function parseArgs(options) {//  \/\\*(?:(?!\\*\/)|.|\\n)*?\\*\/
  var optionString = '',
      required = [],
      modal = false;

  Object.keys(options).forEach(function(option){
    var def = options[option];
    optionString += option;
    if (def.type === 'String') optionString += ':';
    if (def.long) optionString += '(' + def.long + ')';
    if (def.required) required.push(option);
  });

  var parser = new getopt.BasicParser(optionString, process.argv);
  var args = {}, option;

  while ((option = parser.getopt())) {
    var arg = args[option.option] || { count : 0};
    arg.count++;
    arg.value = option.optarg || true;

    args[option.option] = arg;

    if (options[option.option].modal) {
      modal = true;
    }
  }

  if (!modal) {
    required.forEach(function(option) {
      if (!args[option] || !args[option].value) {
        console.log("Must specify a value for option %s (%s : %s)", option, options[option].long, options[option].desc);
        info.help();
        process.exit(1);
      }
    });
  }

  // what's left in argv
  args.files = process.argv.slice(parser.optind());
  return args;
}