Add basic file watching

lib/generate/css.ts

@@ -1,7 +1,6 @@
 import { promises as fs } from "fs";
 import * as util from "../util";
 import sass, { Result as SassResult } from "sass";
-import ejs from "ejs";
 
 function renderSass(data: string): Promise<SassResult> {
 	return new Promise((resolve, reject) => {
@@ -33,8 +32,4 @@ export default async function css() {
 	generate("light");
 	generate("dark");
 	generate("auto");
-
-	if (process.env.NODE_ENV === "development") {
-		require("fs").watch("site/css/", css);
-	}
 }

lib/index.ts

@@ -10,6 +10,7 @@ import validateHttpSig from "./activitypub/middleware/http-signature";
 import "reflect-metadata";
 import { createConnection} from "typeorm";
 import * as path from "path";
+import chokidar from "chokidar";
 
 async function generate(): Promise<Page[]> {
 	generators.copy();
@@ -28,7 +29,22 @@ async function generate(): Promise<Page[]> {
 	return posts;
 }
 
+function watch() {
+	const watcher = chokidar.watch("site/", {
+		ignoreInitial: true,
+	});
+	watcher.on("all", (event, path) => {
+		console.log(`Regenerating due to ${event} ${path}`);
+		// todo: this could be smarter about not regenerating everything
+		generate();
+	});
+}
+
 (async () => {
+	if (process.env.NODE_ENV === undefined) {
+		process.env.NODE_ENV = "development";
+	}
+
 	const app = express();
 	app.use(morgan("dev"));
 	app.use(bodyParser.json({ type: "application/activity+json" }));
@@ -60,6 +76,10 @@ async function generate(): Promise<Page[]> {
 
 	const posts = await generate();
 	
+	if (process.env.NODE_ENV === "development") {
+		watch();
+	}
+
 	await activitypub.articles.setup(posts);
 
 	const apRouter = Router();

package.json

@@ -22,6 +22,7 @@
 		"@types/sqlite3": "^3.1.4",
 		"@types/uuid": "^3.4.4",
 		"body-parser": "^1.18.3",
+		"chokidar": "^3.5.2",
 		"date-fns": "^1.30.1",
 		"ejs": "^2.6.1",
 		"express": "^4.16.4",