tty: Deno.setRaw(rid, mode) to turn on/off raw mode (#3958)

1 files changed, 14 insertions, 0 deletions

diff --git a/cli/js/tty.ts b/cli/js/tty.ts
new file mode 100644
index 000000000..2ad44d025
--- /dev/null
+++ b/cli/js/tty.ts
@@ -0,0 +1,14 @@
+import { sendSync } from "./dispatch_json.ts";
+
+/** Check if a given resource is TTY. */
+export function isatty(rid: number): boolean {
+  return sendSync("op_isatty", { rid });
+}
+
+/** Set TTY to be under raw mode or not. */
+export function setRaw(rid: number, mode: boolean): void {
+  sendSync("op_set_raw", {
+    rid,
+    mode
+  });
+}