131 lines
4.2 KiB
JavaScript
131 lines
4.2 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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function repeat(chr, count) {
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var result = "";
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while (result.length < count) {
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result += chr;
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}
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return result;
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}
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function _getPrompt(prompt, options, callback) {
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process.stdout.write(prompt);
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var stdin = process.stdin;
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stdin.resume();
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stdin.setRawMode(true);
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stdin.resume();
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stdin.setEncoding('utf8');
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var message = '';
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var respond = function (ctrlC, message) {
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process.stdout.write('\n');
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stdin.setRawMode(false);
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stdin.pause();
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stdin.removeListener('data', handler);
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callback(ctrlC, message);
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};
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function handler(chr) {
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chr = String(chr);
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switch (chr) {
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// Enter (ish)
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case "\n":
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case "\r":
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case "\u0004":
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if (options.choice) {
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if (options.defaultChoice) {
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respond(null, options.defaultChoice);
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}
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}
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else {
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respond(null, message);
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}
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break;
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// Backspace
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case "\u007f":
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if (message.length > 0 && options.choice == null) {
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message = message.substring(0, message.length - 1);
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(process.stdout).clearLine();
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(process.stdout).cursorTo(0);
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if (options.mask) {
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process.stdout.write(prompt + repeat(options.mask, message.length));
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}
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else {
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process.stdout.write(prompt + message);
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}
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}
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break;
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// Ctrl-C
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case "\u0003":
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process.stdout.write('\n[ CTRL-C ]');
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respond(true, null);
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break;
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// Any other character
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default:
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if (options.choice) {
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if (options.choice.indexOf(chr) >= 0) {
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process.stdout.write(chr);
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respond(null, chr);
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}
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}
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else {
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// More passsword characters
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if (options.mask) {
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process.stdout.write('*');
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}
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else {
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process.stdout.write(chr);
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}
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message += chr;
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}
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break;
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}
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}
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stdin.on('data', handler);
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}
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function getPrompt(prompt, options) {
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return new Promise(function (resolve, reject) {
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_getPrompt(prompt, options, function (ctrlC, password) {
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if (ctrlC) {
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return reject(new Error("cancelled"));
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}
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resolve(password);
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});
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});
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}
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function getProgressBar(action) {
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var lastProgress = -1;
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return function (percent) {
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var progress = Math.trunc(percent * 100);
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if (progress == lastProgress) {
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return;
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}
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lastProgress = progress;
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process.stdin.setRawMode(false);
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process.stdin.pause();
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(process.stdout).clearLine();
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(process.stdout).cursorTo(0);
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process.stdout.write(action + "... " + progress + "%");
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if (percent === 1) {
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process.stdout.write('\n');
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}
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};
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}
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exports.getProgressBar = getProgressBar;
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function getPassword(prompt) {
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return getPrompt(prompt, { mask: "*" });
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}
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exports.getPassword = getPassword;
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function getMessage(prompt) {
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return getPrompt(prompt, {});
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}
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exports.getMessage = getMessage;
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// @TODO: Allow choices to be an array, [ "Yes", "No", "All" ] => "(y)es/ (N)o/ (a)ll"
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function getChoice(prompt, choices, defaultChoice) {
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var choice = choices.toLowerCase().split("");
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if (defaultChoice) {
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defaultChoice = defaultChoice.toLowerCase();
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}
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var options = { choice: choice, defaultChoice: defaultChoice };
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var hint = choice.map(function (c) { return ((c === defaultChoice) ? c.toUpperCase() : c); }).join("/");
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return getPrompt((prompt + " (" + hint + ") "), options);
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}
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exports.getChoice = getChoice;
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