add assume role .ts

single-scripts/assume-role.ts

@@ -0,0 +1,25 @@
+#!/usr/bin/env -S deno run -A
+
+import {args, assumeRoleByKey, exit,} from "https://script.hatter.ink/@60/deno-commons-mod.ts";
+import {parseArgs} from "jsr:@std/cli/parse-args";
+
+const flags = parseArgs(args(), {
+    boolean: ["help"],
+    string: ["role-arn"],
+});
+
+if (flags.help) {
+    console.log(
+        "assume-role.ts --role-arn ROLE_ARN",
+    );
+    exit(0);
+}
+
+const roleArn = flags["role-arn"];
+
+if (!roleArn) {
+    console.error("--role-arn is required");
+    exit(1);
+}
+
+console.log(await assumeRoleByKey(roleArn));