Webpack4Cache.js 1.9 KB

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.default = void 0;
  6. var _os = _interopRequireDefault(require("os"));
  7. var _cacache = _interopRequireDefault(require("cacache"));
  8. var _findCacheDir = _interopRequireDefault(require("find-cache-dir"));
  9. var _serializeJavascript = _interopRequireDefault(require("serialize-javascript"));
  10. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  11. class Webpack4Cache {
  12. constructor(compilation, options, weakCache) {
  13. this.cache = options.cache === true ? Webpack4Cache.getCacheDirectory() : options.cache;
  14. this.weakCache = weakCache;
  15. }
  16. static getCacheDirectory() {
  17. return (0, _findCacheDir.default)({
  18. name: 'compression-webpack-plugin'
  19. }) || _os.default.tmpdir();
  20. }
  21. async get(cacheData, {
  22. RawSource
  23. }) {
  24. if (!this.cache) {
  25. // eslint-disable-next-line no-undefined
  26. return undefined;
  27. }
  28. const weakOutput = this.weakCache.get(cacheData.inputSource);
  29. if (weakOutput) {
  30. return weakOutput;
  31. } // eslint-disable-next-line no-param-reassign
  32. cacheData.cacheIdent = cacheData.cacheIdent || (0, _serializeJavascript.default)(cacheData.cacheKeys);
  33. let cachedResult;
  34. try {
  35. cachedResult = await _cacache.default.get(this.cache, cacheData.cacheIdent);
  36. } catch (ignoreError) {
  37. // eslint-disable-next-line no-undefined
  38. return undefined;
  39. }
  40. return new RawSource(Buffer.from(JSON.parse(cachedResult.data).data));
  41. }
  42. async store(cacheData) {
  43. if (!this.cache) {
  44. // eslint-disable-next-line no-undefined
  45. return undefined;
  46. }
  47. if (!this.weakCache.has(cacheData.inputSource)) {
  48. this.weakCache.set(cacheData.inputSource, cacheData.output);
  49. }
  50. const {
  51. cacheIdent,
  52. output
  53. } = cacheData;
  54. return _cacache.default.put(this.cache, cacheIdent, JSON.stringify(output.source()));
  55. }
  56. }
  57. exports.default = Webpack4Cache;