@sap/cds-dk/lib/init/xml.js

Command line client and development toolkit for the SAP Cloud Application Programming Model

const { readFileSync } = require('fs')

/*
  Remove the _text attributes and convert value it into array
  input : "groupId":[{"_text":["customer"]}]
  output: "groupId":["customer"]
*/
function _removeTextAttributes(value, parentElement) {
  const parentKeys = Object.keys(parentElement._parent)
  const key = parentKeys[parentKeys.length - 1]
  const _text = parentElement._parent[key]
  if (_text.length > 0) {
      _text[_text.length - 1] = value
  } else {
      parentElement._parent[key] = value
  }
}

// REVISIT: Simplify config
// REVISIT: fast-xml-parser
/**
 * Parse a given string containing xml
 * used to remove the _text object from converted json i.e. from xml-js.
 * example: converted json has "groupId":[{"_text":["customer"]}]
 * and after removing textAttributes (using this function): "groupId":["customer"]
 * @param xml string to parse
 * @returns parsed json object
 */
function parseXml(path) {
  const xmljs = require('xml-js')
  const xml = readFileSync(path, { encoding: 'utf-8' })
  return JSON.parse(xmljs.xml2json(xml, {
      ignoreComment: true,
      compact: true,
      alwaysArray: true,
      ignoreDeclaration: true,
      attributesKey: "$",
      trim: true,
      nativeType: true,
      ignoreInstruction: true,
      ignoreCdata: true,
      ignoreDoctype: true,
      textFn: _removeTextAttributes
  }))?.project?.[0]
}

module.exports = { parseXml }