From 7483ed96c625402b549bdaa20582ca4abbe8b70c Mon Sep 17 00:00:00 2001
From: Corey Farrell <git@cfware.com>
Date: Thu, 5 Jul 2018 16:38:48 -0400
Subject: [PATCH] fix: use uuid/v4 to generate unique identifiers. (#883)

---
 index.js          | 8 ++------
 package-lock.json | 7 +++----
 package.json      | 4 ++--
 3 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/index.js b/index.js
index cd8b6b1dd..dded71d33 100755
--- a/index.js
+++ b/index.js
@@ -12,7 +12,6 @@ const Hash = require('./lib/hash')
 const libCoverage = require('istanbul-lib-coverage')
 const libHook = require('istanbul-lib-hook')
 const libReport = require('istanbul-lib-report')
-const md5hex = require('md5-hex')
 const mkdirp = require('make-dir')
 const Module = require('module')
 const onExit = require('signal-exit')
@@ -22,6 +21,7 @@ const resolveFrom = require('resolve-from')
 const rimraf = require('rimraf')
 const SourceMaps = require('./lib/source-maps')
 const testExclude = require('test-exclude')
+const uuid = require('uuid/v4')
 
 var ProcessInfo
 try {
@@ -363,11 +363,7 @@ NYC.prototype.wrap = function (bin) {
   return this
 }
 
-NYC.prototype.generateUniqueID = function () {
-  return md5hex(
-    process.hrtime().concat(process.pid).map(String)
-  )
-}
+NYC.prototype.generateUniqueID = uuid
 
 NYC.prototype.writeCoverageFile = function () {
   var coverage = coverageFinder()
diff --git a/package-lock.json b/package-lock.json
index 07a0a8766..739b520bd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7825,10 +7825,9 @@
       "dev": true
     },
     "uuid": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.2.1.tgz",
-      "integrity": "sha512-jZnMwlb9Iku/O3smGWvZhauCf6cvvpKi4BKRiliS3cxnI+Gz9j5MEpTz2UFuXiKPJocb7gnsLHwiS05ige5BEA==",
-      "dev": true
+      "version": "3.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
+      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA=="
     },
     "validate-npm-package-license": {
       "version": "3.0.3",
diff --git a/package.json b/package.json
index d21885b4a..56db8550e 100644
--- a/package.json
+++ b/package.json
@@ -89,13 +89,13 @@
     "istanbul-lib-source-maps": "^2.0.0",
     "istanbul-reports": "^1.5.0",
     "make-dir": "^1.3.0",
-    "md5-hex": "^2.0.0",
     "merge-source-map": "^1.1.0",
     "resolve-from": "^4.0.0",
     "rimraf": "^2.6.2",
     "signal-exit": "^3.0.2",
     "spawn-wrap": "^1.4.2",
     "test-exclude": "^5.0.0",
+    "uuid": "^3.3.2",
     "yargs": "11.1.0",
     "yargs-parser": "^9.0.2"
   },
@@ -140,13 +140,13 @@
     "istanbul-lib-source-maps",
     "istanbul-reports",
     "make-dir",
-    "md5-hex",
     "merge-source-map",
     "resolve-from",
     "rimraf",
     "signal-exit",
     "spawn-wrap",
     "test-exclude",
+    "uuid",
     "yargs",
     "yargs-parser"
   ]