nmvikings_gendiff/dist/renders/renderTree.js

Compares two configuration files and shows a difference.

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

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

var getIndent = function getIndent(depth) {
  return '  '.repeat(depth);
};

var createString = function createString(name, value, depth) {
  var sign = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : ' ';

  if (value instanceof Object) {
    var children = Object.keys(value).map(function (key) {
      return createString(key, value[key], depth + 2);
    });

    return _lodash2.default.flatten(['' + getIndent(depth) + sign + ' ' + name + ': {', children, getIndent(depth) + '  }']).join('\n');
  }

  return '' + getIndent(depth) + sign + ' ' + name + ': ' + value;
};

var renderTree = function renderTree(ast) {
  var iter = function iter(nodes, depth) {
    var mapping = {
      'not updated': function notUpdated(_ref) {
        var name = _ref.name,
            value = _ref.value;
        return createString(name, value, depth + 1);
      },
      updated: function updated(_ref2) {
        var name = _ref2.name,
            value = _ref2.value;
        return [createString(name, value.new, depth + 1, '+'), createString(name, value.old, depth + 1, '-')];
      },
      removed: function removed(_ref3) {
        var name = _ref3.name,
            value = _ref3.value;
        return createString(name, value, depth + 1, '-');
      },
      added: function added(_ref4) {
        var name = _ref4.name,
            value = _ref4.value;
        return createString(name, value, depth + 1, '+');
      },
      nested: function nested(_ref5) {
        var name = _ref5.name,
            children = _ref5.children;
        return [getIndent(depth + 1) + '  ' + name + ': {', iter(children, depth + 2), getIndent(depth + 1) + '  }'];
      }
    };

    var newNodes = nodes.map(function (node) {
      return mapping[node.type](node);
    });

    return _lodash2.default.flatten(newNodes).join('\n');
  };

  return '{\n' + iter(ast, 0) + '\n}';
};

exports.default = renderTree;
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