'use strict'; var through = require('through2'); var normalize = require('normalize-path'); function mapSources(mapFn) { function transform(file, _, cb) { if (!file.sourceMap || !file.sourceMap.sources) { return cb(null, file); } function mapper(sourcePath) { var result = sourcePath; if (typeof mapFn === 'function') { result = mapFn(sourcePath, file); } return normalize(result); } file.sourceMap.sources = file.sourceMap.sources.map(mapper); cb(null, file); } return through.obj(transform); } module.exports = mapSources;