From 06129a19a39495f54cbf1b123d24f1216b4cc0d9 Mon Sep 17 00:00:00 2001
From: Rishabh Chawla <rishabh31121999@gmail.com>
Date: Tue, 18 Feb 2020 23:05:05 +0530
Subject: [PATCH] feat(webpack-cli): add progress bar for progress flag (#1238)

* feat: add progress bar in progress

* chore: remove async

* chore: remove readline

* chore: lint
---
 packages/webpack-cli/lib/utils/Compiler.js | 26 +++++++++++++++-------
 1 file changed, 18 insertions(+), 8 deletions(-)

diff --git a/packages/webpack-cli/lib/utils/Compiler.js b/packages/webpack-cli/lib/utils/Compiler.js
index c33c73448b6..98081c6807f 100644
--- a/packages/webpack-cli/lib/utils/Compiler.js
+++ b/packages/webpack-cli/lib/utils/Compiler.js
@@ -1,5 +1,6 @@
 const webpack = require('webpack');
 const logger = require('./logger');
+const { cyanBright, greenBright } = require('chalk');
 const { CompilerOutput } = require('./CompilerOutput');
 
 class Compiler {
@@ -15,17 +16,26 @@ class Compiler {
 
         compilation.hooks.beforeRun.tap('webpackProgress', () => {
             if (outputOptions.progress) {
-                let tmpMsg;
+                process.stdout.write('\n');
                 const defaultProgressPluginHandler = (percent, msg) => {
                     percent = Math.floor(percent * 100);
-                    if (percent === 100) {
-                        msg = 'Compilation completed';
+                    process.stdout.clearLine();
+                    process.stdout.cursorTo(0);
+                    if (percent !== undefined) {
+                        process.stdout.write(' (');
+                        for (let i = 0; i <= 100; i += 10) {
+                            if (i <= percent) {
+                                process.stdout.write(greenBright('#'));
+                            } else {
+                                process.stdout.write('#');
+                            }
+                        }
+                        process.stdout.write(`) ${percent}% : `);
+                        process.stdout.write(`${cyanBright(msg)}`);
+                        if (percent === 100) {
+                            process.stdout.write(`${cyanBright('Complilation completed\n')}`);
+                        }
                     }
-
-                    if (msg && tmpMsg != msg) {
-                        logger.info(percent + '% ' + msg);
-                    }
-                    tmpMsg = msg;
                 };
                 if (!progressPluginExists) {
                     new ProgressPlugin(defaultProgressPluginHandler).apply(compilation);