fix: prevent info from running unnecessarily

[jamesgeorge007]

What kind of change does this PR introduce?
bugfix

Did you add tests for your changes?
Yup

If relevant, did you update the documentation?
Nope

Summary

• Make use of commander.js to parse the available commands.
• Prevents info from running unnecessarily.

Does this PR introduce a breaking change?
Nope

Other information
N/A

[alexander-akait]

Good work, can you provide example of --help, because now commander can do it, also i think here couple places for refactoring, but it is not high priority right now

[jamesgeorge007]

webpack-cli --help shows up the custom help information since we're overriding the default behavior.

          ⬡                     webpack                     ⬡

		         https://webpack.js.org

		The build tool for modern web applications

		Usage: `webpack [...options] | <command>`

		Example: `webpack help --flag | <command>`



Available Commands

  init | c      Initialize a new webpack configuration                 
  migrate | m   Migrate a configuration to a new version               
  loader | l    Scaffold a loader repository                           
  plugin | p    Scaffold a plugin repository                           
  info | i      Outputs information about your system and dependencies 
  serve | s     Run the webpack Dev Server                             

Options

  --entry string[]         The entry point(s) of your application e.g.          
                           ./src/main.js                                        
  -c, --config string      Provide path to a webpack configuration file e.g.    
                           ./webpack.config.js                                  
  -m, --merge string       Merge a configuration file using webpack-merge e.g.  
                           ./webpack.config.js                                  
  --progress               Print compilation progress during build              
  --silent                 Disable any output that webpack makes                
  --help                   Outputs list of supported flags                      
  -o, --output string      Output location of the file generated by webpack     
                           e.g. ./dist/                                         
  -t, --target string      Sets the build target e.g. node                      
  -w, --watch              Watch for files changes                              
  -h, --hot                Enables Hot Module Replacement                       
  --no-hot                 Disables Hot Module Replacement                      
  -s, --sourcemap string   Determine source maps to use                         
  --prefetch string        Prefetch this request                                
  -j, --json               Prints result as JSON                                
  -d, --dev                Run development build                                
  -p, --prod               Run production build                                 
  --mode string            Defines the mode to pass to webpack                  
  -v, --version            Get current version                                  
  --node-args string[]     NodeJS flags                                         
  --stats string           It instructs webpack on how to treat the stats e.g.  
                           verbose                                              
  --verbose                It tells webpack to output all the information       
  --env string             Environment passed to the configuration when it is a 
                           function                                             

                  Made with ♥️  by the webpack team

[jamesgeorge007]

Let's revisit the refactoring part in a future PR 👍

[alexander-akait]

/cc @webpack/cli-team

[webpack-bot]

@jamesgeorge007 Thanks for your update.

I labeled the Pull Request so reviewers will review it again.

@snitin315 Please review the new changes.

[alexander-akait]

Good job!

[snitin315]

Nice work.