upem/src/core.js

const _castArray = require("lodash.castarray");
const _get = require("lodash.get");

function updateDeps(pDependencyObject, pOutdatedPackagesObject, pOptions = {}) {
  const lSavePrefix = pOptions.saveExact ? "" : pOptions.savePrefix || "^";

  return {
    ...pDependencyObject,
    ...Object.keys(pDependencyObject)
      .filter((pDep) =>
        Object.keys(pOutdatedPackagesObject).some(
          (pPackage) => pPackage === pDep
        )
      )
      .reduce((pAll, pThis) => {
        pAll[pThis] = `${lSavePrefix}${pOutdatedPackagesObject[pThis].latest}`;
        return pAll;
      }, {}),
  };
}

function getDoNotUpArray(pPackageObject) {
  return _castArray(_get(pPackageObject, "upem.donotup", []))
    .map((pPackage) =>
      typeof pPackage === "string" ? pPackage : _get(pPackage, "package")
    )
    .filter((pPackage) => Boolean(pPackage));
}

function filterOutdatedPackages(pOutdatedObject, pPackageObject) {
  const lReturnValue = { ...pOutdatedObject };

  Object.keys(lReturnValue)
    .filter((pKey) => getDoNotUpArray(pPackageObject).includes(pKey))
    .forEach((pKey) => Reflect.deleteProperty(lReturnValue, pKey));
  return lReturnValue;
}

/**
 * Updates all dependencies in the passed package.json that match a key in the
 * passed outdated object to the _latest_ in that object, ignoring the
 * packages mentioned in the upem.donotup key.
 *
 * @param {any} pPackageObject - the contents of a package.json in object format
 * @param {any} pOutdatedObject - the output of npm outdated --json, in object format
 * @param {any} pOptions -
 *       saveExact  - how updated packages get prefixed if true:'', if false or left out
 *                    (the default): savePrefix
 *       savePrefix - how updated packages get prefixed; either '~', '^' or '' (the default)
 *
 * @return {any} - the transformed pPackageObject
 */

function updateAllDeps(pPackageObject, pOutdatedPackages = {}, pOptions = {}) {
  return {
    ...pPackageObject,
    ...Object.keys(pPackageObject)
      .filter((pPackageKey) => pPackageKey.includes("ependencies"))
      .reduce((pAll, pDepKey) => {
        pAll[pDepKey] = updateDeps(
          pPackageObject[pDepKey],
          pOutdatedPackages,
          pOptions
        );
        return pAll;
      }, {}),
  };
}

module.exports = {
  filterOutdatedPackages,
  updateDeps,
  updateAllDeps,
};