| /* |
| MIT License http://www.opensource.org/licenses/mit-license.php |
| Author Tobias Koppers @sokra |
| */ |
| "use strict"; |
| |
| const path = require("path"); |
| const concord = require("./concord"); |
| const DescriptionFileUtils = require("./DescriptionFileUtils"); |
| |
| module.exports = class ConcordMainPlugin { |
| constructor(source, options, target) { |
| this.source = source; |
| this.options = options; |
| this.target = target; |
| } |
| |
| apply(resolver) { |
| const target = resolver.ensureHook(this.target); |
| resolver |
| .getHook(this.source) |
| .tapAsync("ConcordMainPlugin", (request, resolveContext, callback) => { |
| if (request.path !== request.descriptionFileRoot) return callback(); |
| const concordField = DescriptionFileUtils.getField( |
| request.descriptionFileData, |
| "concord" |
| ); |
| if (!concordField) return callback(); |
| const mainModule = concord.getMain(request.context, concordField); |
| if (!mainModule) return callback(); |
| const obj = Object.assign({}, request, { |
| request: mainModule |
| }); |
| const filename = path.basename(request.descriptionFilePath); |
| return resolver.doResolve( |
| target, |
| obj, |
| "use " + mainModule + " from " + filename, |
| resolveContext, |
| callback |
| ); |
| }); |
| } |
| }; |