Add new script for generating AUTHORS file (#426)

AUTHORS

@@ -1,15 +1,13 @@
 # This file lists all individuals having contributed content to the repository.
-# git log --format='%aN <%aE>' | env LC_ALL=C.UTF-8 sort -uf
+# This list was auto-generated from Git history.
 
 @thingsdoer <zac.developer@gmail.com>
 Aaron DeVore <aaron.devore@gmail.com>
-Aaron Hamilton <aaron@correspondwith.me>
 Aaron Hamilton <aaron@rangle.io>
 Adam Lavin <adam@lavoaster.co.uk>
 Adriano Bonat <adrianob@gmail.com>
 Alex Farrell <alex.farrell@mac.com>
 Alexander Grigoriev <agrigoriev@alawar.com>
-Amio <amio.cn@gmail.com>
 Amio • 晋晓炜 <amio.cn@gmail.com>
 Andrew Rynhard <rynhard.a@icloud.com>
 André L. F. Pinto <andreluizferreirapinto@gmail.com>
@@ -24,8 +22,6 @@ Benji <asdf.tgz@gmail.com>
 Bodo Tasche <bodo@wannawork.de>
 Brian <iamamthwiz+GitHub@gmail.com>
 Bruno <brunoferreirapinto@gmail.com>
-Bruno Pinto <bpinto@thoughtworks.com>
-Bruno Pinto <brunoferreirapinto@gmail.com>
 CADBOT <charliec364@gmail.com>
 Celso Miranda <contacto@celsomiranda.net>
 Chang Yu-heng <mr.changyuheng@gmail.com>
@@ -39,19 +35,15 @@ costa <costa@casa>
 cotne nazarashvili <cotne.nazarashvili@gmail.com>
 Cyan <szwathub@gmail.com>
 Dan Underwood <dan-c-underwood@users.noreply.github.com>
-Dan Underwood <dan.underwood@outlook.com>
 Daniel Banck <daniel@dbanck.de>
 Daniel Mijares <daniel.j.mijares@gmail.com>
 Daniele Sluijters <daenney@users.noreply.github.com>
-Daniele Sluijters <github@daenney.net>
 Danny Arnold <despair.blue@gmail.com>
 Dave Yarwood <dave.yarwood@gmail.com>
 Declan Kelly <declan@KnightHawk3.com>
 Denis Kolesnikov <exsdis@gmail.com>
 Denis Koltsov <koltsov.d@gmail.com>
 Denny Trebbin <fibric@users.noreply.github.com>
-Derek Stavis <dekestavis@gmail.com>
-Derek Stavis <derek@dba.eng.br>
 Derek Willian Stavis <dekestavis@gmail.com>
 Don <don@ohspite.net>
 Douglas Camata <d.camata@gmail.com>
@@ -60,7 +52,6 @@ Eivind Uggedal <eivind@uggedal.com>
 Erik Kallen <info@erikkallen.nl>
 eugenesvk <eugenesvk@gmail.com>
 Felipe Rodrigues <felipe@crafters.com.br>
-Felipe Rodrigues de Almeida <felipe@crafters.com.br>
 Felix Sonntag <sonntag@in.tum.de>
 Fission Xuiptz <fissionxuiptz@softwaremojo.com>
 Florian Fischer <florian.fl.fischer@fau.de>
@@ -83,10 +74,8 @@ iven <ivenvd@gmail.com>
 Jade Meskill <jade.meskill@gmail.com>
 Jake Schmitz <jake.d.schmitz@gmail.com>
 James Hillyerd <james@hillyerd.com>
-Jan Lindblom <jan.lindblom@mittmedia.se>
 Jan Lindblom <janlindblom@fastmail.fm>
 Janusz Dziurzyński <janusz@forserial.org>
-Jason Rogers <jacaetevha@gmail.com>
 Jason Rogers <jason.rogers@samasource.org>
 Jean Mertz <jean@mertz.fm>
 jeremiejig <me@jeremiejig.fr>
@@ -98,19 +87,13 @@ John Rizzo <johnrizzo1@gmail.com>
 Johnny Robeson <johnny@localmomentum.net>
 jona <fiftynine@protonmail.com>
 Jonathan Knapp <jon@coffeeandcode.com>
-Jonathan Pares <jonathan.pares@gmail.com>
 Jonathan Pares <jonathanpa@users.noreply.github.com>
-Jorge <jbucaran@me.com>
 Jorge Bucaran <jbucaran@me.com>
 Joseph <sepp.tannhuber@yahoo.de>
-Joseph Tannhuber <sepp.tannhuber@yahoo.de>
 Joshua Warner <joshua.warner@readytalk.com>
-Joshua Warner <joshuawarner32@gmail.com>
 Josiah Sprague <josiah.sprague@gmail.com>
 JP Viljoen <froztbyte@froztbyte.net>
 Justin Hileman <github@0x7f.us>
-Justin Hileman <justin@justinhileman.info>
-Justin Hileman <justinh@dropbox.com>
 Jörg Thalheim <joerg@higgsboson.tk>
 Kasper Holbek Jensen <khj@autobutler.dk>
 Katya Demidova <demidovakatya@gmail.com>
@@ -138,11 +121,9 @@ Michel Belleville <michel.belleville@gmail.com>
 Michele Gerarduzzi <michele.gerarduzzi@gmail.com>
 Miguel Molina <hi@mvader.me>
 Muhammad Tauqir Ahmad <mtahmed@uwaterloo.ca>
-Nathan Wykes <nwykes@gmail.com>
 Nathan Wykes <nwykes@users.noreply.github.com>
 Natrim <maly@kinet.cz>
 Nelson Chen <crazysim@gmail.com>
-ngroup <ngroup@users.noreply.github.com>
 ngroup <steven.nien@gmail.com>
 Niam Patel <naz1997@googlemail.com>
 Nicholas Maccharoli <nmaccharoli@gmail.com>
@@ -151,7 +132,6 @@ Nils Stål <nisseblink@gmail.com>
 nwykes <nwykes@gmail.com>
 Osamu OKANO <okano.osamu@gmail.com>
 Pablo Aguiar <scorphus@gmail.com>
-Pablo Santiago Blum de Aguiar <scorphus@gmail.com>
 PastLeo <chgu82837@gmail.com>
 Paul Joannon <paul.joannon@gmail.com>
 Pedro Medeiros <pedrosnk@gmail.com>
@@ -170,16 +150,12 @@ Scott Perry <github@numist.net>
 Sergey Timanin <timanin@gmail.com>
 Sérgio Ramos <mail@sergioramos.me>
 Sheldon Els <sels@blizzard.com>
-Sheldon Els <sheldon.els@gmail.com>
 sn0cr <709679@gmail.com>
 sobolevn <mail@sobolevn.me>
-Stephen Coakley <me@stephencoakley.com>
 Stephen M. Coakley <me@stephencoakley.com>
-Steve Mckellar <steve@adaptivelab.co.uk>
 Steve Mckellar <steve@thingmaker.io>
 Steven Knight <steven@knight.cx>
 syl20bnr <sylvain.benner@gmail.com>
-szwathub <szwathub@gmail.com>
 Tad Thorley <phaedryx@gmail.com>
 TheBestNinja <TheBestNinja@users.noreply.github.com>
 Tobias Johansson <tobias.johansson@appland.se>
@@ -191,14 +167,11 @@ unbalancedparentheses <federico.carrone@gmail.com>
 VEINHORN <b.korogvich@gmail.com>
 Vincent <vincent.pretre@smartesting.com>
 Vincent Pizzo <vincent.pizzo@singlewire.com>
-Vincent Pizzo <vincentjames501@gmail.com>
 Vincent Pretre <vincent.pretre@gmail.com>
 Vladimir Panteleev <thecybershadow@gmail.com>
 Wes Morgan <cap10morgan@gmail.com>
-Wild Kat <wk@futureinquestion.net>
 Wild Kat <wk@users.noreply.github.com>
 William Hogman <me@whn.se>
-William Rudenmalm <me@whn.se>
 Wolfgang Richter <wolf@cs.cmu.edu>
 Zhishen (Jason) Wen <wzhishen@gmail.com>
 Zhuang Ya <zhuangya@gmail.com>

tools/generate-authors.fish

@@ -0,0 +1,19 @@
+#!/usr/bin/env fish
+# This script generates the AUTHORS file from Git history.
+
+echo '# This file lists all individuals having contributed content to the repository.'
+echo '# This list was auto-generated from Git history.'
+echo
+
+git log --format='%aN <%aE>' | awk '
+{
+    pos = index($0, "<");
+    name = substr($0, 0, pos - 2);
+    email = substr($0, pos + 1, length($0) - pos - 1);
+    names[name]++;
+    emails[email]++;
+    if (names[name] == 1 && emails[email] == 1) {
+        print $0;
+    }
+}
+' | env LC_ALL=C.UTF-8 sort -uf