From c361180c07d114e21efc2e2fd24392a4a417c19a Mon Sep 17 00:00:00 2001
From: Anna Henningsen <anna@addaleax.net>
Date: Thu, 19 Sep 2019 00:50:49 +0200
Subject: [PATCH] tools: make mailmap processing for author list
 case-insensitive
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This is to accommodate Myles Borins otherwise ending up with
multiple entries due to different casing in the email 🙂

PR-URL: https://github.com/nodejs/node/pull/29608
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
---
 tools/update-authors.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tools/update-authors.js b/tools/update-authors.js
index 3d7fcb14b2f461..312f253c4854e5 100755
--- a/tools/update-authors.js
+++ b/tools/update-authors.js
@@ -7,6 +7,13 @@ const path = require('path');
 const fs = require('fs');
 const readline = require('readline');
 
+class CaseIndifferentMap {
+  _map = new Map();
+
+  get(key) { return this._map.get(key.toLowerCase()); }
+  set(key, value) { return this._map.set(key.toLowerCase(), value); }
+}
+
 const log = spawn(
   'git',
   // Inspect author name/email and body.
@@ -23,7 +30,7 @@ else
 
 output.write('# Authors ordered by first contribution.\n\n');
 
-const mailmap = new Map();
+const mailmap = new CaseIndifferentMap();
 {
   const lines = fs.readFileSync(path.resolve(__dirname, '../', '.mailmap'),
                                 { encoding: 'utf8' }).split('\n');