1 files changed, 136 insertions, 0 deletions
diff --git a/node_modules/convert-source-map/index.js b/node_modules/convert-source-map/index.js
new file mode 100644
index 0000000..d3265f0
--- /dev/null
+++ b/node_modules/convert-source-map/index.js
@@ -0,0 +1,136 @@
+'use strict';
+var fs = require('fs');
+var path = require('path');
+var SafeBuffer = require('safe-buffer');
+
+Object.defineProperty(exports, 'commentRegex', {
+  get: function getCommentRegex () {
+    return /^\s*\/(?:\/|\*)[@#]\s+sourceMappingURL=data:(?:application|text)\/json;(?:charset[:=]\S+?;)?base64,(?:.*)$/mg;
+  }
+});
+
+Object.defineProperty(exports, 'mapFileCommentRegex', {
+  get: function getMapFileCommentRegex () {
+    // Matches sourceMappingURL in either // or /* comment styles.
+    return /(?:\/\/[@#][ \t]+sourceMappingURL=([^\s'"`]+?)[ \t]*$)|(?:\/\*[@#][ \t]+sourceMappingURL=([^\*]+?)[ \t]*(?:\*\/){1}[ \t]*$)/mg;
+  }
+});
+
+
+function decodeBase64(base64) {
+  return (SafeBuffer.Buffer.from(base64, 'base64') || "").toString();
+}
+
+function stripComment(sm) {
+  return sm.split(',').pop();
+}
+
+function readFromFileMap(sm, dir) {
+  // NOTE: this will only work on the server since it attempts to read the map file
+
+  var r = exports.mapFileCommentRegex.exec(sm);
+
+  // for some odd reason //# .. captures in 1 and /* .. */ in 2
+  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 (SafeBuffer.Buffer.from(json, 'utf8') || "").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;
+};
+
+// returns copy instead of original
+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 });
+};
+
+// Finds last sourcemap comment in file or returns null if none was found
+exports.fromSource = function (content) {
+  var m = content.match(exports.commentRegex);
+  return m ? exports.fromComment(m.pop()) : null;
+};
+
+// Finds last sourcemap comment in file or returns null if none was found
+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;
+};