Dashboard watcher

Signed-off-by: Romein van Buren <romein@vburen.nl>

dashboard/index.js

@@ -0,0 +1,31 @@
+'use strict';
+
+const { build: viteBuild } = require('vite');
+const fs = require('fs').promises;
+const { svelte } = require('@sveltejs/vite-plugin-svelte');
+
+const path = __dirname + '/../gui/dashboard';
+
+const build = (prefix = '') => viteBuild({
+  root: path,
+  base: `${prefix}/statusdashboard/asset/`,
+  plugins: [ svelte() ],
+  build: {
+    rollupOptions: {
+      output: {
+        assetFileNames: '[hash].[ext]',
+        entryFileNames: '[hash].js',
+        chunkFileNames: '[hash].js',
+      },
+    },
+    outDir: path + '/build',
+  },
+});
+
+const cleanup = () => fs.rm(path + '/build', {
+  recursive: true,
+  force: true,
+});
+
+module.exports = { build, cleanup, path };
+build();

dashboard/watcher.js

@@ -0,0 +1,32 @@
+'use strict';
+
+const chokidar = require('chokidar');
+const dashboard = require('./index');
+
+let watcher;
+const handler = async () => {
+  console.log('status dashboard watcher triggered, rebuilding...');
+  await dashboard.cleanup();
+  await dashboard.build();
+  process.send({ command: 'reload' });
+};
+
+process.on('message', message => {
+  switch (message.command) {
+    case 'start':
+      if (message.path) {
+        watcher = chokidar.watch(message.path, {
+          ignored: [ /node_modules/, /build/ ],
+        });
+
+        watcher.on('add', handler);
+        watcher.on('change', handler);
+        watcher.on('unlink', handler);
+      }
+      break;
+
+    default:
+      console.log(`Status dashboard watcher received unknown command ${message.command}`);
+      break;
+  }
+});