Readme.md

hilton-csv

Convert Hilton's stupid CSV thing to JSON.

API

convertFile(file, fn)

Convert the given CSV file to JSON, invoking fn(err, obj).

Example

Run this:

$ node example

License

MIT

data.csv

example.js

var convertFile = require('./');
var fs = require('fs');
var ls = fs.readdirSync;
var write = fs.writeFileSync;

// get a list of all CSVs
var files = ls(__dirname).filter(function (file) {
  return '.csv' == file.substr(-4);
});

// serial loop to prevent EMFILEs
(function next(i) {
  var file = files[i];
  if (!file) return done();
  // conver the file
  convertFile(file, function (err, json) {
    var jsonfile = file.slice(0, -4) + '.json';
    write(jsonfile, JSON.stringify(json, null, 2));
    console.log('\n  %s -> %s', file, jsonfile);
    next(++i);
  });
}(0));

// a heart warming success message :)
function done() {
  console.log('\n  GREAT FUCKING JOB!');
}

index.js

var fs = require('fs');
var read = fs.readFileSync;
var csv = require('csv');

/**
 * Expose `convertFile`.
 */

module.exports = convertFile;

/**
 * Convert the given CSV `file` to JSON,
 * invoking `fn(err, obj)`.
 *
 * @api public
 * @param {String} file
 * @param {Function} fn
 * @return {Object}
 */

function convertFile(file, fn) {
  var data = read(file).toString();
  csv().from.string(data).to.array(function (csv) {
    var headers = toObject(csv.shift());
    var obj = csv.map(function (row) {
      return buildRow(headers, row);
    });
    fn(null, obj);
  });
}

/**
 * Build an Object `row` from the given `array`.
 *
 * @api private
 * @param {Object} headers
 * @param {Array} array
 * @return {Object}
 */

function buildRow(headers, array) {
  var row = copy(headers);
  Object.keys(row).forEach(function (key, i) {
    row[key] = array[i];
  });
  return row;
}

/**
 * Create an `Object` with the keys of the given `array`'s values.
 *
 * @api private
 * @param {Array} array
 * @return {Object}
 */

function toObject(array) {
  var obj = {};
  for (var i = 0; i < array.length; i++) {
    obj[array[i]] = null;
  }
  return obj;
}

/**
 * Create a shallow copy of the given `obj`.
 *
 * @api private
 * @param {Object} obj
 * @return {Object}
 */

function copy(obj) {
  var res = {};
  for (var prop in obj) {
    res[prop] = obj[prop];
  }
  return res;
}

package.json

{
  "name": "hilton-csv",
  "version": "0.0.0",
  "main": "index.js",
  "private": true,
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "Stephen Mathieson <[email protected]>",
  "license": "MIT",
  "dependencies": {
    "csv": "~0.3.7"
  }
}