64 lines
2.1 KiB
JavaScript
64 lines
2.1 KiB
JavaScript
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'use strict';
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var _path = require('path');
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var isAbsolute = require('path-is-absolute');
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var isUrl = require('is-url');
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function SourceAdjuster (sourceRoot, path, sourceMap) {
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this.path = path;
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this.sourceRoot = sourceRoot;
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if (typeof sourceMap === 'string') {
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this.sourceMap = JSON.parse(sourceMap.replace(/^\)\]\}'/, ''));
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} else {
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this.sourceMap = sourceMap;
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}
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}
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SourceAdjuster.prototype.relativize = function (filepathOrUrl, mappedWithSourceMap) {
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var filepath;
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if (mappedWithSourceMap && filepathOrUrl && this.sourceMap) {
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filepath = this.relativizeWithSourceMap(filepathOrUrl);
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} else {
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filepath = this.relativizeWithoutSourceMap(filepathOrUrl);
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}
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return fallbackOnBasename(filepath);
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};
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SourceAdjuster.prototype.relativizeWithSourceMap = function (filepathOrUrl) {
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var sourceMapRoot = this.sourceMap.sourceRoot;
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if (sourceMapRoot && isUrl(sourceMapRoot)) {
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return _path.relative(sourceMapRoot, filepathOrUrl);
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}
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if (this.sourceRoot && isAbsolute(this.sourceRoot) && isAbsolute(filepathOrUrl)) {
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return _path.relative(this.sourceRoot, filepathOrUrl);
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}
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if (sourceMapRoot && isAbsolute(sourceMapRoot) && isAbsolute(filepathOrUrl)) {
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return _path.relative(sourceMapRoot, filepathOrUrl);
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}
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if (isUrl(filepathOrUrl)) {
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return _path.basename(filepathOrUrl);
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}
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return filepathOrUrl;
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};
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SourceAdjuster.prototype.relativizeWithoutSourceMap = function (filepathOrUrl) {
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var tmpPath = this.path || filepathOrUrl;
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if (this.sourceRoot && isAbsolute(this.sourceRoot) && isAbsolute(tmpPath)) {
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return _path.relative(this.sourceRoot, tmpPath);
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} else {
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return this.path;
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}
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};
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function fallbackOnBasename (filepath) {
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if (filepath) {
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if (filepath.split(_path.sep).indexOf('..') !== -1) {
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return _path.basename(filepath);
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} else if (isUrl(filepath)) {
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return _path.basename(filepath);
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} else if (isAbsolute(filepath)) {
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return _path.basename(filepath);
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}
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}
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return filepath;
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}
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module.exports = SourceAdjuster;
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