fix(prompt-cli): reuse inquirer instance from cli

Author: armano2

@commitlint/prompt-cli/cli.js

@@ -1,10 +1,8 @@
 #!/usr/bin/env node
 const execa = require('execa');
+const inquirer = require('inquirer');
 const {prompter} = require('@commitlint/prompt');
 
-const _ = undefined;
-const prompt = () => prompter(_, commit);
-
 main().catch((err) => {
 	setTimeout(() => {
 		throw err;
@@ -21,7 +19,7 @@ function main() {
 				process.exit(1);
 			}
 		})
-		.then(() => prompt());
+		.then(() => prompter(inquirer, commit));
 }
 
 function isStageEmpty() {

@commitlint/prompt-cli/package.json

@@ -36,6 +36,7 @@
   },
   "dependencies": {
     "@commitlint/prompt": "^11.0.0",
+    "inquirer": "^6.5.2",
     "execa": "^5.0.0"
   },
   "gitHead": "cb565dfcca3128380b9b3dc274aedbcae34ce5ca"

@commitlint/prompt/fixtures/cli.js

@@ -1,8 +1,7 @@
+const inquirer = require("inquirer");
 const {prompter} = require("../lib");
 
-process.stdin.isTTY = false;
-process.stdout.isTTY = false;
-prompter(null, (answers) => {
+prompter(inquirer, (answers) => {
 	console.log('!$#$!')
 	console.log(answers)
 	console.log('!$#$!')

@commitlint/prompt/package.json

@@ -40,12 +40,12 @@
     "@types/inquirer": "^6.5.0",
     "@types/concat-stream": "^1.6.0",
     "commitizen": "4.2.2",
-    "concat-stream": "^2.0.0"
+    "concat-stream": "^2.0.0",
+    "inquirer": "^6.5.2"
   },
   "dependencies": {
     "@commitlint/load": "^11.0.0",
     "chalk": "^4.0.0",
-    "inquirer": "^6.5.2",
     "lodash": "^4.17.19"
   },
   "gitHead": "cb565dfcca3128380b9b3dc274aedbcae34ce5ca"

@commitlint/prompt/src/index.ts

@@ -1,15 +1,20 @@
 import inquirer from 'inquirer';
 import input from './input';
+import InputCustomPrompt from './inquirer/InputCustomPrompt';
 
 type Commit = (input: string) => void;
 
 /**
  * Entry point for commitizen
- * @param _ inquirer instance passed by commitizen, unused
+ * @param cz inquirer instance passed by commitizen
  * @param commit callback to execute with complete commit message
  * @return generated commit message
  */
-export async function prompter(_: unknown, commit: Commit): Promise<void> {
-	const message = await input(inquirer.createPromptModule());
+export async function prompter(
+	cz: typeof inquirer,
+	commit: Commit
+): Promise<void> {
+	cz.prompt.registerPrompt('input-custom', InputCustomPrompt);
+	const message = await input(cz.prompt);
 	commit(message);
 }

@commitlint/prompt/src/input.ts

@@ -6,7 +6,6 @@ import getPrompt from './library/get-prompt';
 import settings from './settings';
 import {InputSetting, Result} from './library/types';
 
-import InputCustomPrompt from './inquirer/InputCustomPrompt';
 import {getHasName, getMaxLength, getRules} from './library/utils';
 
 /**
@@ -26,7 +25,6 @@ export default async function input(prompter: PromptModule): Promise<string> {
 	const maxLength = getMaxLength(headerLengthRule);
 
 	try {
-		prompter.registerPrompt('input-custom', InputCustomPrompt);
 		const questions: DistinctQuestion<Result>[] = [];
 
 		for (const input of parts) {