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346d812709
Fixes https://github.com/denoland/deno/issues/18223. Fixes https://github.com/denoland/deno/issues/21477 --------- Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com> Co-authored-by: David Sherret <dsherret@gmail.com>
95 lines
1.9 KiB
JavaScript
95 lines
1.9 KiB
JavaScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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import { core, primordials } from "ext:core/mod.js";
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const ops = core.ops;
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import { isatty } from "ext:runtime/40_tty.js";
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import { stdin } from "ext:deno_io/12_io.js";
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import { getNoColor } from "ext:deno_console/01_console.js";
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const { Uint8Array, StringFromCodePoint } = primordials;
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const ESC = "\x1b";
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const CTRL_C = "\x03";
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const CTRL_D = "\x04";
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const bold = ansi(1, 22);
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const italic = ansi(3, 23);
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const yellow = ansi(33, 0);
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function ansi(start, end) {
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return (str) => getNoColor() ? str : `\x1b[${start}m${str}\x1b[${end}m`;
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}
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function alert(message = "Alert") {
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if (!isatty(stdin.rid)) {
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return;
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}
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core.print(
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`${yellow(bold(`${message}`))} [${italic("Press any key to continue")}] `,
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);
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try {
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stdin.setRaw(true);
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stdin.readSync(new Uint8Array(1024));
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} finally {
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stdin.setRaw(false);
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}
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core.print("\n");
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}
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function prompt(message = "Prompt", defaultValue = "") {
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if (!isatty(stdin.rid)) {
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return null;
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}
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return ops.op_read_line_prompt(
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`${message} `,
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`${defaultValue}`,
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);
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}
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const inputMap = new primordials.Map([
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["Y", true],
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["y", true],
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["\r", true],
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["\n", true],
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["\r\n", true],
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["N", false],
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["n", false],
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[ESC, false],
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[CTRL_C, false],
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[CTRL_D, false],
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]);
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function confirm(message = "Confirm") {
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if (!isatty(stdin.rid)) {
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return false;
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}
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core.print(`${yellow(bold(`${message}`))} [${italic("Y/n")}] `);
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let val = false;
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try {
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stdin.setRaw(true);
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while (true) {
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const b = new Uint8Array(1024);
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stdin.readSync(b);
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let byteString = "";
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let i = 0;
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while (b[i]) byteString += StringFromCodePoint(b[i++]);
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if (inputMap.has(byteString)) {
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val = inputMap.get(byteString);
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break;
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}
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}
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} finally {
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stdin.setRaw(false);
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}
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core.print(`${val ? "y" : "n"}\n`);
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return val;
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}
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export { alert, confirm, prompt };
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