emotedump command

src/commands/emotedump.ts

@@ -0,0 +1,40 @@
+import { SlashCommandBuilder } from '@discordjs/builders';
+import { CommandInteraction, GuildMember, MessageEmbed } from 'discord.js';
+import { writeTmpFile } from '../lib/util';
+
+module.exports = {
+  data: new SlashCommandBuilder()
+    .setName('emotedump')
+    .setDescription('Dump every emote in the server for Gitea')
+    .addIntegerOption((option) =>
+      option
+        .setName('size')
+        .setRequired(false)
+        .setDescription('Image size to output the emojis as, leave unset if unsure')
+        .setMinValue(16)
+        .setMaxValue(512)
+    ),
+
+  execute: async (interaction: CommandInteraction, member: GuildMember) => {
+    const size = interaction.options.getNumber('size') || 64;
+    const emojis = member.guild.emojis;
+
+    const embed = new MessageEmbed()
+      .setDescription(`names: \`${emojis.cache.map(emote => emote.name).join(',')}\``);
+
+    const commands = [
+      ...emojis.cache.map(emote =>
+        `wget -q "https://cdn.discordapp.com/emojis/${emote.id}.${emote.animated ? 'gif' : 'png'}?size=${size}&quality=lossless" -O "${emote.name}.png"`
+      ),
+      'chown gitea:gitea ./*'
+    ].join('\n');
+
+    const attach = await writeTmpFile(commands, 'commands', 'sh');
+
+    interaction.reply({
+      embeds: [embed],
+      files: [attach],
+      ephemeral: true
+    });
+  }
+};

src/lib/util.ts

@@ -1,4 +1,7 @@
 import * as fsp from 'fs/promises';
+import { tmpdir } from 'os';
+import { join } from 'path';
+import { randomBytes } from 'crypto';
 
 export async function exists(file: string) {
   try {
@@ -13,4 +16,11 @@ export function getSign(n: number) {
   if (n > 0) return '+';
   if (n < 0) return '-';
   return ' ';
+}
+
+export async function writeTmpFile(data: string | Buffer, filename?: string, extension?: string): Promise<string> {
+  const file = `${filename ? filename + '-' : ''}${randomBytes(8).toString('hex')}${extension ? '.' + extension : (typeof data === 'string' ? '.txt' : '')}`;
+  const path = join(tmpdir(), file);
+  await fsp.writeFile(path, data);
+  return path;
 }