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, sources) {
  22. const weakOutput = this.weakCache.get(cacheData.source);
  23. if (weakOutput) {
  24. return weakOutput;
  25. }
  26. if (!this.cache) {
  27. // eslint-disable-next-line no-undefined
  28. return undefined;
  29. } // eslint-disable-next-line no-param-reassign
  30. cacheData.cacheIdent = cacheData.cacheIdent || (0, _serializeJavascript.default)(cacheData.cacheKeys);
  31. let cachedResult;
  32. try {
  33. cachedResult = await _cacache.default.get(this.cache, cacheData.cacheIdent);
  34. } catch (ignoreError) {
  35. // eslint-disable-next-line no-undefined
  36. return undefined;
  37. }
  38. return new sources.RawSource(Buffer.from(JSON.parse(cachedResult.data).data));
  39. }
  40. async store(cacheData) {
  41. if (!this.weakCache.has(cacheData.source)) {
  42. this.weakCache.set(cacheData.source, cacheData.output);
  43. }
  44. if (!this.cache) {
  45. // eslint-disable-next-line no-undefined
  46. return undefined;
  47. }
  48. const {
  49. cacheIdent,
  50. output
  51. } = cacheData;
  52. return _cacache.default.put(this.cache, cacheIdent, JSON.stringify(output.source()));
  53. }
  54. }
  55. exports.default = Webpack4Cache;