Call JS updater API

src-tauri/tauri.conf.json

@@ -8,7 +8,7 @@
   },
   "package": {
     "productName": "tauri-app",
-    "version": "1.2.3-6"
+    "version": "1.2.4-7"
   },
   "tauri": {
     "bundle": {

src/main.js

@@ -1,18 +1,70 @@
 const { invoke } = window.__TAURI__.primitives;
+const { check } = window.__TAURI__.updater;
 
 let greetInputEl;
 let greetMsgEl;
+let updateMsgEl;
 
 async function greet() {
+  await updateIfAvailable();
+
   // Learn more about Tauri commands at https://tauri.app/v1/guides/features/command
   greetMsgEl.textContent = await invoke("greet", { name: greetInputEl.value });
 }
 
 window.addEventListener("DOMContentLoaded", () => {
   greetInputEl = document.querySelector("#greet-input");
   greetMsgEl = document.querySelector("#greet-msg");
+  updateMsgEl = document.querySelector("#update-msg");
   document.querySelector("#greet-form").addEventListener("submit", (e) => {
     e.preventDefault();
     greet();
   });
 });
+
+async function updateIfAvailable() {
+  let update;
+  try {
+    update = await check();
+  } catch (e) {
+    console.debug("failed check", e);
+    return;
+  }
+
+  if (update !== null) {
+    console.debug(`Update available for ${update.currentVersion}, updating to ${update.version}`);
+
+    try {
+      await update.downloadAndInstall(progressHandler);
+    } catch (e) {
+      console.debug("failed check", e);
+      return;
+    }
+  } else {
+    console.debug("Already running latest version");
+  }
+}
+
+function progressHandler(progress) {
+        switch (progress.event) {
+          case "Started": {
+            console.debug("Update event started", progress.data.contentLength);
+            updateMsgEl.textContent = `Update available of size: ${progress.data.contentLength}`;
+            break;
+          }
+          case "Progress": {
+            console.debug("Update event progress", progress.data.chunkLength);
+            updateMsgEl.textContent = `Update download progress: ${progress.data.chunkLength}`;
+            break;
+          }
+          case "Finished": {
+            console.debug("Update event finished");
+            updateMsgEl.textContent = "Update finished";
+            break;
+          }
+          default: {
+            console.debug("Update event unrecognised");
+            break;
+          }
+        }
+      }