123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135 |
- 'use strict';
- var fs = require('fs');
- var path = require('path');
- Object.defineProperty(exports, 'commentRegex', {
- get: function getCommentRegex () {
- return /^\s*\/(?:\/|\*)[@#]\s+sourceMappingURL=data:(?:application|text)\/json;(?:charset[:=]\S+?;)?base64,(?:.*)$/mg;
- }
- });
- Object.defineProperty(exports, 'mapFileCommentRegex', {
- get: function getMapFileCommentRegex () {
-
- return /(?:\/\/[@#][ \t]+sourceMappingURL=([^\s'"`]+?)[ \t]*$)|(?:\/\*[@#][ \t]+sourceMappingURL=([^\*]+?)[ \t]*(?:\*\/){1}[ \t]*$)/mg;
- }
- });
- function decodeBase64(base64) {
- return new Buffer(base64, 'base64').toString();
- }
- function stripComment(sm) {
- return sm.split(',').pop();
- }
- function readFromFileMap(sm, dir) {
-
- var r = exports.mapFileCommentRegex.exec(sm);
-
- var filename = r[1] || r[2];
- var filepath = path.resolve(dir, filename);
- try {
- return fs.readFileSync(filepath, 'utf8');
- } catch (e) {
- throw new Error('An error occurred while trying to read the map file at ' + filepath + '\n' + e);
- }
- }
- function Converter (sm, opts) {
- opts = opts || {};
- if (opts.isFileComment) sm = readFromFileMap(sm, opts.commentFileDir);
- if (opts.hasComment) sm = stripComment(sm);
- if (opts.isEncoded) sm = decodeBase64(sm);
- if (opts.isJSON || opts.isEncoded) sm = JSON.parse(sm);
- this.sourcemap = sm;
- }
- Converter.prototype.toJSON = function (space) {
- return JSON.stringify(this.sourcemap, null, space);
- };
- Converter.prototype.toBase64 = function () {
- var json = this.toJSON();
- return new Buffer(json).toString('base64');
- };
- Converter.prototype.toComment = function (options) {
- var base64 = this.toBase64();
- var data = 'sourceMappingURL=data:application/json;charset=utf-8;base64,' + base64;
- return options && options.multiline ? '/*# ' + data + ' */' : '//# ' + data;
- };
- Converter.prototype.toObject = function () {
- return JSON.parse(this.toJSON());
- };
- Converter.prototype.addProperty = function (key, value) {
- if (this.sourcemap.hasOwnProperty(key)) throw new Error('property "' + key + '" already exists on the sourcemap, use set property instead');
- return this.setProperty(key, value);
- };
- Converter.prototype.setProperty = function (key, value) {
- this.sourcemap[key] = value;
- return this;
- };
- Converter.prototype.getProperty = function (key) {
- return this.sourcemap[key];
- };
- exports.fromObject = function (obj) {
- return new Converter(obj);
- };
- exports.fromJSON = function (json) {
- return new Converter(json, { isJSON: true });
- };
- exports.fromBase64 = function (base64) {
- return new Converter(base64, { isEncoded: true });
- };
- exports.fromComment = function (comment) {
- comment = comment
- .replace(/^\/\*/g, '//')
- .replace(/\*\/$/g, '');
- return new Converter(comment, { isEncoded: true, hasComment: true });
- };
- exports.fromMapFileComment = function (comment, dir) {
- return new Converter(comment, { commentFileDir: dir, isFileComment: true, isJSON: true });
- };
- exports.fromSource = function (content) {
- var m = content.match(exports.commentRegex);
- return m ? exports.fromComment(m.pop()) : null;
- };
- exports.fromMapFileSource = function (content, dir) {
- var m = content.match(exports.mapFileCommentRegex);
- return m ? exports.fromMapFileComment(m.pop(), dir) : null;
- };
- exports.removeComments = function (src) {
- return src.replace(exports.commentRegex, '');
- };
- exports.removeMapFileComments = function (src) {
- return src.replace(exports.mapFileCommentRegex, '');
- };
- exports.generateMapFileComment = function (file, options) {
- var data = 'sourceMappingURL=' + file;
- return options && options.multiline ? '/*# ' + data + ' */' : '//# ' + data;
- };
|