82f2b76e25
We now use webpack instead of SystemJS, effectively bundling modules into one file (plus commons chunks) for every entry point. This results in a much smaller extension size (almost half). Furthermore we use yarn/npm even for extension run-time dependencies. This relieves us from manually vendoring and building dependencies. It's also easier to understand for new developers familiar with node.
137 lines
4.1 KiB
JavaScript
137 lines
4.1 KiB
JavaScript
'use strict';
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var fs = require('fs');
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var path = require('path');
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Object.defineProperty(exports, 'commentRegex', {
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get: function getCommentRegex () {
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return /^\s*\/(?:\/|\*)[@#]\s+sourceMappingURL=data:(?:application|text)\/json;(?:charset[:=]\S+?;)?base64,(?:.*)$/mg;
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}
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});
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Object.defineProperty(exports, 'mapFileCommentRegex', {
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get: function getMapFileCommentRegex () {
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//Example (Extra space between slashes added to solve Safari bug. Exclude space in production):
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// / /# sourceMappingURL=foo.js.map /*# sourceMappingURL=foo.js.map */
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return /(?:\/\/[@#][ \t]+sourceMappingURL=([^\s'"]+?)[ \t]*$)|(?:\/\*[@#][ \t]+sourceMappingURL=([^\*]+?)[ \t]*(?:\*\/){1}[ \t]*$)/mg;
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}
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});
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function decodeBase64(base64) {
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return new Buffer(base64, 'base64').toString();
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}
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function stripComment(sm) {
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return sm.split(',').pop();
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}
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function readFromFileMap(sm, dir) {
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// NOTE: this will only work on the server since it attempts to read the map file
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var r = exports.mapFileCommentRegex.exec(sm);
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// for some odd reason //# .. captures in 1 and /* .. */ in 2
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var filename = r[1] || r[2];
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var filepath = path.resolve(dir, filename);
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try {
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return fs.readFileSync(filepath, 'utf8');
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} catch (e) {
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throw new Error('An error occurred while trying to read the map file at ' + filepath + '\n' + e);
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}
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}
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function Converter (sm, opts) {
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opts = opts || {};
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if (opts.isFileComment) sm = readFromFileMap(sm, opts.commentFileDir);
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if (opts.hasComment) sm = stripComment(sm);
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if (opts.isEncoded) sm = decodeBase64(sm);
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if (opts.isJSON || opts.isEncoded) sm = JSON.parse(sm);
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this.sourcemap = sm;
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}
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Converter.prototype.toJSON = function (space) {
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return JSON.stringify(this.sourcemap, null, space);
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};
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Converter.prototype.toBase64 = function () {
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var json = this.toJSON();
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return new Buffer(json).toString('base64');
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};
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Converter.prototype.toComment = function (options) {
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var base64 = this.toBase64();
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var data = 'sourceMappingURL=data:application/json;charset=utf-8;base64,' + base64;
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return options && options.multiline ? '/*# ' + data + ' */' : '//# ' + data;
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};
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// returns copy instead of original
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Converter.prototype.toObject = function () {
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return JSON.parse(this.toJSON());
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};
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Converter.prototype.addProperty = function (key, value) {
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if (this.sourcemap.hasOwnProperty(key)) throw new Error('property %s already exists on the sourcemap, use set property instead');
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return this.setProperty(key, value);
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};
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Converter.prototype.setProperty = function (key, value) {
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this.sourcemap[key] = value;
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return this;
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};
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Converter.prototype.getProperty = function (key) {
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return this.sourcemap[key];
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};
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exports.fromObject = function (obj) {
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return new Converter(obj);
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};
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exports.fromJSON = function (json) {
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return new Converter(json, { isJSON: true });
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};
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exports.fromBase64 = function (base64) {
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return new Converter(base64, { isEncoded: true });
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};
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exports.fromComment = function (comment) {
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comment = comment
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.replace(/^\/\*/g, '//')
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.replace(/\*\/$/g, '');
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return new Converter(comment, { isEncoded: true, hasComment: true });
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};
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exports.fromMapFileComment = function (comment, dir) {
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return new Converter(comment, { commentFileDir: dir, isFileComment: true, isJSON: true });
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};
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// Finds last sourcemap comment in file or returns null if none was found
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exports.fromSource = function (content) {
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var m = content.match(exports.commentRegex);
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return m ? exports.fromComment(m.pop()) : null;
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};
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// Finds last sourcemap comment in file or returns null if none was found
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exports.fromMapFileSource = function (content, dir) {
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var m = content.match(exports.mapFileCommentRegex);
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return m ? exports.fromMapFileComment(m.pop(), dir) : null;
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};
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exports.removeComments = function (src) {
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return src.replace(exports.commentRegex, '');
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};
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exports.removeMapFileComments = function (src) {
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return src.replace(exports.mapFileCommentRegex, '');
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};
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exports.generateMapFileComment = function (file, options) {
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var data = 'sourceMappingURL=' + file;
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return options && options.multiline ? '/*# ' + data + ' */' : '//# ' + data;
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};
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