artyoms-gendiff/dist/index.js

my own gendiff app for study project

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _lodash = _interopRequireDefault(require("lodash"));

var _fs = _interopRequireDefault(require("fs"));

var _path = _interopRequireDefault(require("path"));

var _parsers = _interopRequireDefault(require("./parsers"));

var _renderers = _interopRequireDefault(require("./renderers"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

const getPath = pathString => _path.default.resolve(pathString);

const getContent = filepath => {
  const extention = _path.default.extname(filepath);

  return (0, _parsers.default)(extention)(_fs.default.readFileSync(getPath(filepath), 'utf-8'));
};

const nodeDispatcher = [{
  type: 'unchanged',
  check: (firstValue, secondValue) => firstValue === secondValue,
  process: (property, type, currentValue) => ({
    property,
    type,
    currentValue
  })
}, {
  type: 'nested',
  check: (firstValue, secondValue) => _lodash.default.isObject(firstValue) && _lodash.default.isObject(secondValue),
  process: (property, type, currentValue, previousValue, buildDiff) => ({
    property,
    type,
    currentValue: null,
    previousValue: null,
    children: buildDiff(previousValue, currentValue)
  })
}, {
  type: 'added',
  check: firstValue => !firstValue,
  process: (property, type, currentValue) => ({
    property,
    type,
    currentValue
  })
}, {
  type: 'deleted',
  check: (firstValue, secondValue) => !secondValue,
  process: (property, type, currentValue, previousValue) => ({
    property,
    type,
    currentValue: previousValue
  })
}, {
  type: 'updated',
  check: (firstValue, secondValue) => firstValue !== secondValue,
  process: (property, type, currentValue, previousValue) => ({
    property,
    type,
    currentValue,
    previousValue
  })
}];

const buildDiff = (contentBefore, contentAfter) => {
  const properties = _lodash.default.union(_lodash.default.keys(contentBefore), _lodash.default.keys(contentAfter));

  return properties.map(property => {
    const valueOfFrom = contentBefore[property];
    const valueOfTo = contentAfter[property];

    const {
      type,
      process
    } = _lodash.default.find(nodeDispatcher, element => element.check(valueOfFrom, valueOfTo));

    return process(property, type, valueOfTo, valueOfFrom, buildDiff);
  });
};

var _default = (filepath1, filepath2, format = 'cascade') => {
  const contentBefore = getContent(filepath1);
  const contentAfter = getContent(filepath2);
  const diff = buildDiff(contentBefore, contentAfter);
  return (0, _renderers.default)(diff, format);
};

exports.default = _default;
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