feat: Add config_file_path option to Vite plugin

Author: Maarten-Dekker

packages/vite-plugin-tempest/src/config.ts

@@ -1,10 +1,25 @@
 import type { TempestViteConfiguration } from './types'
 import { exec, php } from './utils'
+import { readFileSync } from 'node:fs';
+import { resolve } from 'node:path';
 
 const TEMPEST_BIN = 'tempest'
 const VITE_CONFIG_COMMAND = 'vite:config'
 
-export async function loadTempestConfiguration(): Promise<TempestViteConfiguration> {
+export async function loadTempestConfiguration(
+	options: { config_file_path?: string } = {}
+): Promise<TempestViteConfiguration> {
+	if (options.config_file_path) {
+		try {
+			const filePath = resolve(process.cwd(), options.config_file_path);
+			const fileContent = readFileSync(filePath, 'utf-8');
+			return JSON.parse(fileContent);
+		} catch (e) {
+			console.error(`[vite-plugin-tempest] Error: Failed to read or parse the file at [${options.config_file_path}].`);
+			throw e;
+		}
+	}
+
 	try {
 		const override = process.env.TEMPEST_PLUGIN_CONFIGURATION_OVERRIDE
 		if (override) {

packages/vite-plugin-tempest/src/plugin.ts

@@ -15,7 +15,7 @@ const TEMPEST_ORIGIN_PLACEHOLDER = 'http://__tempest_placeholder__.test'
 
 let exitHandlersBound = false
 
-export default function tempest(): Plugin {
+export default function tempest(options: { config_file_path?: string } = {}): Plugin {
 	let viteDevServerUrl: DevelopmentServerUrl
 	let bridgeFilePath: string
 	let resolvedConfig: ResolvedConfig
@@ -30,7 +30,7 @@ export default function tempest(): Plugin {
 		name: 'tempest',
 		enforce: 'post',
 		config: async (config, { command, mode }) => {
-			tempestConfig = await loadTempestConfiguration()
+			tempestConfig = await loadTempestConfiguration(options)
 			userConfig = config
 
 			const ssr = !!userConfig.build?.ssr