inline deprecated source-map-url dependency

lib/source-map-url.js

@@ -0,0 +1,47 @@
+// Copyright 2014 Simon Lydell
+// X11 (“MIT”) Licensed. (See LICENSE.)
+// copied from https://github.com/lydell/source-map-url/blob/4106e5f0b001918790e3b830d2541252ba025a3d/source-map-url.js
+// adapted to remove umd
+/* eslint-disable no-var */
+
+var innerRegex = /[#@] sourceMappingURL=([^\s'"]*)/
+
+var regex = RegExp(
+  "(?:" +
+    "/\\*" +
+    "(?:\\s*\r?\n(?://)?)?" +
+    "(?:" + innerRegex.source + ")" +
+    "\\s*" +
+    "\\*/" +
+    "|" +
+    "//(?:" + innerRegex.source + ")" +
+  ")" +
+  "\\s*"
+)
+
+module.exports = {
+  regex: regex,
+  _innerRegex: innerRegex,
+
+  getFrom: function(code) {
+    var match = code.match(regex)
+    return (match ? match[1] || match[2] || "" : null)
+  },
+
+  existsIn: function(code) {
+    return regex.test(code)
+  },
+
+  removeFrom: function(code) {
+    return code.replace(regex, "")
+  },
+
+  insertBefore: function(code, string) {
+    var match = code.match(regex)
+    if (match) {
+      return code.slice(0, match.index) + string + code.slice(match.index)
+    } else {
+      return code + string
+    }
+  }
+}

lib/source-map.js

@@ -1,7 +1,7 @@
 'use strict';
 
 const fs = require('fs-extra');
-const srcURL = require('source-map-url');
+const srcURL = require('./source-map-url');
 const path = require('path');
 const MemoryStreams = require('memory-streams');
 const Coder = require('./coder');

package.json

@@ -19,8 +19,7 @@
     "heimdalljs-logger": "^0.1.9",
     "memory-streams": "^0.1.3",
     "mkdirp": "^0.5.0",
-    "@jacobq/source-map": "^1.1.0",
-    "source-map-url": "^0.3.0"
+    "@jacobq/source-map": "^1.1.0"
   },
   "devDependencies": {
     "chai": "^4.1.2",