build: switch to esbuild-plugin-version-injector for injecting version strings (#8723)

packages/rest/package.json

@@ -68,6 +68,7 @@
 		"@vitest/coverage-c8": "^0.24.0",
 		"cross-env": "^7.0.3",
 		"downlevel-dts": "^0.10.1",
+		"esbuild-plugin-version-injector": "^1.0.0",
 		"eslint": "^8.24.0",
 		"eslint-config-neon": "^0.1.35",
 		"prettier": "^2.7.1",

packages/rest/src/index.ts

@@ -6,3 +6,12 @@ export * from './lib/RequestManager.js';
 export * from './lib/REST.js';
 export * from './lib/utils/constants.js';
 export { makeURLSearchParams, parseResponse } from './lib/utils/utils.js';
+
+/**
+ * The [\@discordjs/rest](https://github.com/discordjs/discord.js/blob/main/packages/rest/#readme) version
+ * that you are currently using.
+ *
+ * Note to developers: This needs to explicitly be `string` so it is not typed as a "const string" that gets injected by esbuild
+ */
+// eslint-disable-next-line @typescript-eslint/no-inferrable-types
+export const version: string = '[VI]{{inject}}[/VI]';

packages/rest/src/lib/utils/constants.ts

@@ -2,10 +2,8 @@ import process from 'node:process';
 import { APIVersion } from 'discord-api-types/v10';
 import { Agent } from 'undici';
 import type { RESTOptions } from '../REST.js';
-// eslint-disable-next-line @typescript-eslint/no-var-requires, @typescript-eslint/no-require-imports
-const Package = require('../../../package.json');
 
-export const DefaultUserAgent = `DiscordBot (${Package.homepage}, ${Package.version})`;
+export const DefaultUserAgent = `DiscordBot (https://discord.js.org, [VI]{{inject}}[/VI])`;
 
 export const DefaultRestOptions: Required<RESTOptions> = {
 	get agent() {

packages/rest/tsup.config.js

@@ -1,3 +1,6 @@
+import { esbuildPluginVersionInjector } from 'esbuild-plugin-version-injector';
 import { createTsupConfig } from '../../tsup.config.js';
 
-export default createTsupConfig();
+export default createTsupConfig({
+	esbuildPlugins: [esbuildPluginVersionInjector()],
+});