@playlyfe/babel-loader/lib/utils/cache-transform.js

babel module loader for webpack

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

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

var _en = _interopRequireDefault(require("cacache/en"));

function cacheTransform(params) {
  return getInfo(params.directory, params.sourceFileName).then(info => {
    if (!info) {
      // not in cache
      return put(params.directory, params.sourceFileName, params.transform(null, params.identifier), params.identifier);
    } // check data present in cache is same


    if (info.metadata.identifier !== params.identifier) {
      // present in cache but something changed
      return put(params.directory, params.sourceFileName, params.transform(info.metadata.identifier, params.identifier), params.identifier);
    } // present in cache nothing changed
    // read from cache


    return get(params.directory, params.sourceFileName);
  }, () => put(params.directory, params.sourceFileName, params.transform(null, params.identifier), params.identifier));
}

function getInfo(directory, sourceFileName) {
  return _en.default.get.info(directory, sourceFileName);
}

function get(directory, sourceFileName) {
  return _en.default.get(directory, sourceFileName).then(({
    data
  }) => JSON.parse(data.toString()));
}

function put(directory, sourceFileName, transformedSource, identifier) {
  return _en.default.put(directory, sourceFileName, JSON.stringify(transformedSource), {
    metadata: {
      identifier
    }
  }).then(() => transformedSource);
}