builder/lib/tasks/minify.js

  1. import minifier from "../processors/minifier.js";
  2. import fsInterface from "@ui5/fs/fsInterface";
  4. /**
  5.  * @public
  6.  * @module @ui5/builder/tasks/minify
  7.  */
  9. /**
  10.  * Task to minify resources.
  11.  *
  12.  * @public
  13.  * @function default
  14.  * @static
  15.  *
  16.  * @param {object} parameters Parameters
  17.  * @param {@ui5/fs/DuplexCollection} parameters.workspace DuplexCollection to read and write files
  18.  * @param {@ui5/project/build/helpers/TaskUtil|object} [parameters.taskUtil] TaskUtil
  19.  * @param {object} parameters.options Options
  20.  * @param {string} parameters.options.pattern Pattern to locate the files to be processed
  21.  * @param {boolean} [parameters.options.omitSourceMapResources=false] Whether source map resources shall
  22.  * 		be tagged as "OmitFromBuildResult" and no sourceMappingURL shall be added to the minified resource
  23.  * @param {boolean} [parameters.options.useInputSourceMaps=true] Whether to make use of any existing source
  24.  * 		maps referenced in the resources to be minified. Use this option to preserve reference to the original
  25.  * 		source files, such as TypeScript files, in the generated source map.
  26.  * @returns {Promise<undefined>} Promise resolving with <code>undefined</code> once data has been written
  27.  */
  28. export default async function({
  29. 	workspace, taskUtil, options: {pattern, omitSourceMapResources = false, useInputSourceMaps = true
  30. 	}}) {
  31. 	const resources = await workspace.byGlob(pattern);
  32. 	const processedResources = await minifier({
  33. 		resources,
  34. 		fs: fsInterface(workspace),
  35. 		taskUtil,
  36. 		options: {
  37. 			addSourceMappingUrl: !omitSourceMapResources,
  38. 			readSourceMappingUrl: !!useInputSourceMaps,
  39. 			useWorkers: !!taskUtil,
  40. 		}
  41. 	});
  43. 	return Promise.all(processedResources.map(async ({
  44. 		resource, dbgResource, sourceMapResource, dbgSourceMapResource
  45. 	}) => {
  46. 		if (taskUtil) {
  47. 			taskUtil.setTag(resource, taskUtil.STANDARD_TAGS.HasDebugVariant);
  48. 			taskUtil.setTag(dbgResource, taskUtil.STANDARD_TAGS.IsDebugVariant);
  49. 			taskUtil.setTag(sourceMapResource, taskUtil.STANDARD_TAGS.HasDebugVariant);
  50. 			if (omitSourceMapResources) {
  51. 				taskUtil.setTag(sourceMapResource, taskUtil.STANDARD_TAGS.OmitFromBuildResult);
  52. 			}
  53. 			if (dbgSourceMapResource) {
  54. 				taskUtil.setTag(dbgSourceMapResource, taskUtil.STANDARD_TAGS.IsDebugVariant);
  55. 				if (omitSourceMapResources) {
  56. 					taskUtil.setTag(dbgSourceMapResource, taskUtil.STANDARD_TAGS.OmitFromBuildResult);
  57. 				}
  58. 			}
  59. 		}
  60. 		return Promise.all([
  61. 			workspace.write(resource),
  62. 			workspace.write(dbgResource),
  63. 			workspace.write(sourceMapResource),
  64. 			dbgSourceMapResource && workspace.write(dbgSourceMapResource)
  65. 		]);
  66. 	}));
  67. }