fix(cli): avoid looping infinitely and avoid prompt if interactive

cli/login.ts

@@ -3,6 +3,10 @@ import { colors, getAvailablePort, log, open, Secret, Select } from "./deps.ts";
 
 export async function loginInteractive(remote: string) {
   let token: string | undefined;
+  if (!Deno.isatty(Deno.stdin.rid)) {
+    log.info("Not a TTY, can't login interactively.");
+    return undefined;
+  }
   if (
     (await Select.prompt({
       message: "How do you want to login",

cli/workspace.ts

@@ -208,6 +208,10 @@ export async function add(
   remote = new URL(remote).toString(); // add trailing slash in all cases!
 
   let token = await tryGetLoginInfo(opts);
+  if (!token && !Deno.isatty(Deno.stdin.rid)) {
+    log.info("Not a TTY, can't login interactively. Pass the token in --token");
+    return;
+  }
   while (!token) {
     token = await loginInteractive(remote);
   }