Restart dev server on package.json changes (withastro#5412)

* Restart dev server on package.json changes

* Adding a changeset

* update vitefu

* lockfile updated

.changeset/olive-walls-hunt.md

@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Restart dev server on package.json changes

packages/astro/package.json

@@ -157,8 +157,8 @@
     "typescript": "*",
     "unist-util-visit": "^4.1.0",
     "vfile": "^5.3.2",
-    "vite": "~3.2.1",
-    "vitefu": "^0.2.0",
+    "vite": "~3.2.4",
+    "vitefu": "^0.2.1",
     "yargs-parser": "^21.0.1",
     "zod": "^3.17.3"
   },

packages/astro/src/core/config/settings.ts

@@ -1,7 +1,7 @@
 import type { AstroConfig, AstroSettings, AstroUserConfig } from '../../@types/astro';
 import { SUPPORTED_MARKDOWN_FILE_EXTENSIONS } from './../constants.js';
 
-import { fileURLToPath } from 'url';
+import { fileURLToPath, pathToFileURL } from 'url';
 import jsxRenderer from '../../jsx/renderer.js';
 import { createDefaultDevConfig } from './config.js';
 import { loadTSConfig } from './tsconfig.js';
@@ -24,9 +24,16 @@ export function createBaseSettings(config: AstroConfig): AstroSettings {
 export function createSettings(config: AstroConfig, cwd?: string): AstroSettings {
 	const tsconfig = loadTSConfig(cwd);
 	const settings = createBaseSettings(config);
+
+	const watchFiles = tsconfig?.exists ? [tsconfig.path, ...tsconfig.extendedPaths] : [];
+
+	if(cwd) {
+		watchFiles.push(fileURLToPath(new URL('./package.json', pathToFileURL(cwd))));
+	}
+
 	settings.tsConfig = tsconfig?.config;
 	settings.tsConfigPath = tsconfig?.path;
-	settings.watchFiles = tsconfig?.exists ? [tsconfig.path, ...tsconfig.extendedPaths] : [];
+	settings.watchFiles = watchFiles;
 	return settings;
 }
 

packages/astro/test/units/dev/restart.test.js

@@ -1,5 +1,6 @@
 import { expect } from 'chai';
 import * as cheerio from 'cheerio';
+import { fileURLToPath } from 'url';
 
 import {
 	createContainerWithAutomaticRestart,
@@ -147,4 +148,36 @@ describe('dev container restarts', () => {
 			await restart.container.close();
 		}
 	});
+
+	it('Is able to restart project on package.json changes', async () => {
+		const fs = createFs(
+			{
+				'/src/pages/index.astro': ``,
+			},
+			root
+		);
+
+		const { astroConfig } = await openConfig({
+			cwd: root,
+			flags: {},
+			cmd: 'dev',
+			logging: defaultLogging,
+		});
+		const settings = createSettings(astroConfig, fileURLToPath(root));
+
+		let restart = await createContainerWithAutomaticRestart({
+			params: { fs, root, settings },
+		});
+		await startContainer(restart.container);
+		expect(isStarted(restart.container)).to.equal(true);
+
+		try {
+			let restartComplete = restart.restarted();
+			fs.writeFileSync('/package.json', `{}`);
+			triggerFSEvent(restart.container, fs, '/package.json', 'change');
+			await restartComplete;
+		} finally {
+			await restart.container.close();
+		}
+	});
 });

packages/integrations/solid/package.json

@@ -33,7 +33,7 @@
   },
   "dependencies": {
     "babel-preset-solid": "^1.4.2",
-    "vitefu": "^0.2.0"
+    "vitefu": "^0.2.1"
   },
   "devDependencies": {
     "astro": "workspace:*",