Create auto-updating app

.gitignore

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+# NPM renames .gitignore to .npmignore
+# In order to prevent that, we remove the initial "."
+# And the CLI then renames it
+app
+node_modules
+build
+dist
+logs

capacitor.config.ts

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+import { CapacitorConfig } from '@capacitor/cli';
+
+const config: CapacitorConfig = {
+  appId: 'io.ionic.starter',
+  appName: 'point-of-sale',
+  webDir: 'www',
+  bundledWebRuntime: false
+};
+
+export default config;

electron-builder.config.json

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+{
+  "appId": "com.pointofsale.app",
+  "directories": {
+    "buildResources": "resources"
+  },
+  "files": [
+    "assets/**/*",
+    "build/**/*",
+    "capacitor.config.*",
+    "app/**/*"
+  ],
+  "publish": {
+    "provider": "github"
+  },
+  "nsis": {
+    "allowElevation": true,
+    "oneClick": false,
+    "allowToChangeInstallationDirectory": true
+  },
+  "win": {
+    "target": "nsis",
+    "icon": "assets/appIcon.ico"
+  },
+  "mac": {
+    "category": "your.app.category.type",
+    "target": "dmg"
+  }
+}

live-runner.js

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+/* eslint-disable no-undef */
+/* eslint-disable @typescript-eslint/no-var-requires */
+const cp = require('child_process');
+const chokidar = require('chokidar');
+const electron = require('electron');
+
+let child = null;
+const npmCmd = process.platform === 'win32' ? 'npm.cmd' : 'npm';
+const reloadWatcher = {
+  debouncer: null,
+  ready: false,
+  watcher: null,
+  restarting: false,
+};
+
+///*
+function runBuild() {
+  return new Promise((resolve, _reject) => {
+    let tempChild = cp.spawn(npmCmd, ['run', 'build']);
+    tempChild.once('exit', () => {
+      resolve();
+    });
+    tempChild.stdout.pipe(process.stdout);
+  });
+}
+//*/
+
+async function spawnElectron() {
+  if (child !== null) {
+    child.stdin.pause();
+    child.kill();
+    child = null;
+    await runBuild();
+  }
+  child = cp.spawn(electron, ['--inspect=5858', './']);
+  child.on('exit', () => {
+    if (!reloadWatcher.restarting) {
+      process.exit(0);
+    }
+  });
+  child.stdout.pipe(process.stdout);
+}
+
+function setupReloadWatcher() {
+  reloadWatcher.watcher = chokidar
+    .watch('./src/**/*', {
+      ignored: /[/\\]\./,
+      persistent: true,
+    })
+    .on('ready', () => {
+      reloadWatcher.ready = true;
+    })
+    .on('all', (_event, _path) => {
+      if (reloadWatcher.ready) {
+        clearTimeout(reloadWatcher.debouncer);
+        reloadWatcher.debouncer = setTimeout(async () => {
+          console.log('Restarting');
+          reloadWatcher.restarting = true;
+          await spawnElectron();
+          reloadWatcher.restarting = false;
+          reloadWatcher.ready = false;
+          clearTimeout(reloadWatcher.debouncer);
+          reloadWatcher.debouncer = null;
+          reloadWatcher.watcher = null;
+          setupReloadWatcher();
+        }, 500);
+      }
+    });
+}
+
+(async () => {
+  await runBuild();
+  await spawnElectron();
+  setupReloadWatcher();
+})();