fix(cli): --version improvement

cli/main.ts

@@ -94,6 +94,7 @@ const command = new Command()
     "Specify headers to use for all requests. e.g: \"HEADERS='h1: v1, h2: v2'\""
   )
   .version(VERSION)
+  .versionOption(false)
   .command("init", "Bootstrap a windmill project with a wmill.yaml file")
   .action(async () => {
     if (await Deno.stat("wmill.yaml").catch(() => null)) {
@@ -134,15 +135,34 @@ const command = new Command()
   .command("worker-groups", workerGroups)
   .command("workers", workers)
   .command("queues", queues)
-  .command("version", "Show version information")
+  .command("version --version", "Show version information")
   .action(async (opts) => {
-    console.log("CLI build against " + VERSION);
+    console.log("CLI version: " + VERSION);
+    try {
+      const provider = new NpmProvider({ package: "windmill-cli" });
+      const versions = await provider.getVersions("windmill-cli");
+      if (versions.latest !== VERSION) {
+        console.log(
+          `CLI is outdated. Latest version ${versions.latest} is available. Run \`wmill upgrade\` to update.`
+        );
+      } else {
+        console.log("CLI is up to date");
+      }
+    } catch (e) {
+      console.warn(
+        `Cannot fetch latest CLI version on npmjs to check if up-to-date: ${e}`
+      );
+    }
     const workspace = await getActiveWorkspace(opts as GlobalOptions);
     if (workspace) {
-      const backendVersion = await fetchVersion(workspace.remote);
-      console.log("Backend Version: " + backendVersion);
+      try {
+        const backendVersion = await fetchVersion(workspace.remote);
+        console.log("Backend Version: " + backendVersion);
+      } catch (e) {
+        console.warn("Cannot fetch backend version: " + e);
+      }
     } else {
-      console.log(
+      console.warn(
         "Cannot fetch backend version: no active workspace selected, choose one to pick a remote to fetch version of"
       );
     }