implement confirm password prompt and use it into wifi and system pas…

…sword request

src/cmd/setup-tachyon.js

@@ -322,11 +322,8 @@ Welcome to the Particle Tachyon setup! This interactive command:
 
 	async _userConfiguration() {
 		const systemPassword = await this._getSystemPassword();
-
 		const wifi = await this._getWifi();
-
 		const sshPublicKey = await this._getKeys();
-
 		return { systemPassword, wifi, sshPublicKey };
 	}
 
@@ -353,38 +350,10 @@ Welcome to the Particle Tachyon setup! This interactive command:
 	}
 
 	async _getSystemPassword() {
-		const questions = [
-			{
-				type: 'password',
-				name: 'password',
-				message: 'Password for the system account:',
-				validate: (value) => {
-					if (!value) {
-						return 'Enter a password for the root account';
-					}
-					return true;
-				}
-			},
-			{
-				type: 'password',
-				name: 'passwordConfirm',
-				message: 'Re-enter the password for the root account:',
-				validate: (value) => {
-					if (!value) {
-						return 'You need to confirm the password';
-					}
-					return true;
-				}
-			}
-		];
-		const res = await this.ui.prompt(questions);
-
-		//check if the passwords match
-		if (res.password !== res.passwordConfirm) {
-			throw new Error('Passwords do not match. Please try again.');
-		}
-
-		return res.password;
+		return this.ui.promptPasswordWithConfirmation({
+			customMessage: 'Enter a password for the system account:',
+			customConfirmationMessage: 'Re-enter the password for the system account:'
+		});
 	}
 
 	async _getWifi() {
@@ -410,25 +379,15 @@ Welcome to the Particle Tachyon setup! This interactive command:
 				type: 'input',
 				name: 'ssid',
 				message: 'Enter your WiFi SSID:'
-			},
-			{
-				type: 'password',
-				name: 'password',
-				message: 'Enter your WiFi password:'
-			},
-			{
-				type: 'password',
-				name: 'passwordConfirm',
-				message: 'Re-enter your WiFi password:'
-			},
+			}
 		];
 		const res = await this.ui.prompt(questions);
+		const { password } = await this.ui.promptPasswordWithConfirmation({
+			customMessage: 'Enter your WiFi password:',
+			customConfirmationMessage: 'Re-enter your WiFi password:'
+		});
 
-		if (res.password !== res.passwordConfirm) {
-			throw new Error('Passwords do not match. Please try again.');
-		}
-
-		return { ssid: res.ssid, password: res.password };
+		return { ssid: res.ssid, password };
 	}
 
 	async _getKeys() {

src/lib/ui/index.js

@@ -40,6 +40,32 @@ module.exports = class UI {
 		return inquirer.prompt(question);
 	}
 
+	async promptPasswordWithConfirmation({ customMessage, customConfirmationMessage } = {}) {
+		let unmatchedPassword = true;
+		let password;
+		const questions = [{
+			type: 'password',
+			name: 'requestedPassword',
+			message: customMessage || 'Enter your password:'
+		},
+		{
+			type: 'password',
+			name: 'confirmPassword',
+			message: customConfirmationMessage || 'Confirm your password:'
+		}];
+		while (unmatchedPassword) {
+			const { requestedPassword, confirmPassword } = await this.prompt(questions);
+			// Verify that the passwords match
+			if (requestedPassword !== confirmPassword) {
+				this.write('Passwords do not match. Please try again.');
+			} else {
+				password = requestedPassword;
+				unmatchedPassword = false;
+			}
+		}
+		return password;
+	}
+
 	createProgressBar() {
 		return new cliProgress.SingleBar({
 			format: '[{bar}] {percentage}% | {description}',