Feature: add --stdin as an option in webpack.config.js

[EslamHiko]

• This is a bugfix
• This is a feature
• This is a code refactor
• This is a test update
• This is a docs update
• This is a metadata update

For Bugs and Features; did you add new tests?

Test already exist 'should exit the process when SIGINT is detected' test in CLI.test

Motivation / Use-Case

solve these issues : webpack/webpack-cli#789 , #1712

Breaking Changes

No

Additional Info

Minimum reproducible repo : https://github.com/EslamHiko/webpack-dev-server/tree/add-stdin-option
go to examples/cli/stdin and add that config :

'use strict';

module.exports = {
  context: __dirname,
  entry: './app.js',
  devServer:{
    stdin:true
  }
};

Run npm run webpack-dev-server without --stdin flag
The server will accept input and closes when you exit CTRL+C/CTRL+D the same behavior when you add --stdin flag
if you don't add the option and run npm run webpack-dev-server without --stdin it won't accept input

[codecov]

Codecov Report

Merging #1767 into master will decrease coverage by 4.17%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #1767      +/-   ##
==========================================
- Coverage   92.52%   88.34%   -4.18%     
==========================================
  Files          28       14      -14     
  Lines        1083      815     -268     
  Branches      324      258      -66     
==========================================
- Hits         1002      720     -282     
- Misses         77       82       +5     
- Partials        4       13       +9

Impacted Files	Coverage Δ
lib/utils/createConfig.js	93.39% <100%> (+1.57%)	⬆️
lib/utils/status.js	80.76% <0%> (-9.24%)	⬇️
lib/Server.js	86.33% <0%> (-6.18%)	⬇️
lib/utils/updateCompiler.js	100% <0%> (ø)	⬆️
lib/utils/addEntries.js	100% <0%> (ø)	⬆️
lib/utils/runOpen.js
lib/servers/SockJSServer.js
lib/utils/tryParseInt.js
client-src/clients/SockJSClient.js
lib/utils/defaultPort.js
... and 11 more

---

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[hiroppy]

Need to add stdin to errorMessage.

[hiroppy]

I don't know this option(--stdin) is necessary. /cc @evilebottnawi

[EslamHiko]

@hiroppy Done

[alexander-akait]

Looks good, we need add tests

[EslamHiko]

@evilebottnawi I searched a lot & tried a lot to capture any input but I couldn't find a way to test if the CLI can accept input or not.
But I have a Minimum reproducible repo here: https://github.com/EslamHiko/webpack-dev-server/tree/add-stdin-option
Here is a walkthrough to test it :

go to examples/cli/stdin and add that config :

'use strict';

module.exports = {
  context: __dirname,
  entry: './app.js',
  devServer:{
    stdin:true
  }
};

Run npm run webpack-dev-server without --stdin flag
The server will accept input and closes when you exit CTRL+C/CTRL+D the same behavior when you add --stdin flag
if you don't add the option :

'use strict';

module.exports = {
  context: __dirname,
  entry: './app.js',
};

and run npm run webpack-dev-server without --stdin it won't accept input

[EslamHiko]

Closed for : #2186

[alexander-akait]

@EslamHiko you send many PRs to webpack-dev-server, i think we can invite your as contributor, do you want to continue help use?

[EslamHiko]

@evilebottnawi Yes, sure I want to continue helping.

[alexander-akait]

@EslamHiko now you are member 🎉