refactor!: remove migrate command (#3291)

BREAKING CHANGE: the `migrate` command was removed without replacement, please use migration guide

Author: snitin315

OPTIONS.md

@@ -1005,7 +1005,6 @@ Commands:
   info|i [options]                                                                   Outputs information about your system.
   init|create|new|c|n [generation-path] [options]                                    Initialize a new webpack project.
   loader|l [output-path] [options]                                                   Scaffold a loader.
-  migrate|m <config-path> [new-config-path]                                          Migrate a configuration to a new version.
   plugin|p [output-path] [options]                                                   Scaffold a plugin.
   serve|server|s [entries...] [options]                                              Run the webpack dev server.
   version|v [commands...]                                                            Output the version number of 'webpack', 'webpack-cli' and 'webpack-dev-server' and commands.

README.md

@@ -60,7 +60,6 @@ Thus, webpack CLI provides different commands for many common tasks.
 - [`help|h [command] [option]`](https://webpack.js.org/api/cli/#help) - Display help for commands and options.
 - [`init|create|new|c|n [generation-path] [options]`](https://webpack.js.org/api/cli/#init) - Create a new webpack project.
 - [`info|i [options]`](https://webpack.js.org/api/cli/#info) - Returns information related to the local environment.
-- [`migrate|m <config-path> [new-config-path]`](https://www.npmjs.com/package/@webpack-cli/migrate) - Migrate project from one version to another.
 - [`plugin|p [output-path] [options]`](https://webpack.js.org/api/cli/#plugin) - Initiate new plugin project.
 - [`loader|l [output-path] [options]`](https://webpack.js.org/api/cli/#loader) - Initiate new loader project.
 - [`serve|server|s [entries...] [options]`](https://webpack.js.org/api/cli/#serve) - Use webpack with a development server that provides live reloading.

packages/webpack-cli/README.md

@@ -69,7 +69,6 @@ npx webpack-cli --help verbose
   info|i [options]                                      Outputs information about your system.
   init|create|new|c|n [generation-path] [options]       Initialize a new webpack project.
   loader|l [output-path] [options]                      Scaffold a loader.
-  migrate|m <config-path> [new-config-path]             Migrate a configuration to a new version.
   plugin|p [output-path] [options]                      Scaffold a plugin.
   serve|server|s [entries...] [options]                 Run the webpack dev server.
   version|v [commands...]                               Output the version number of 'webpack', 'webpack-cli' and 'webpack-dev-server' and commands.

packages/webpack-cli/package.json

@@ -54,9 +54,6 @@
     "@webpack-cli/generators": {
       "optional": true
     },
-    "@webpack-cli/migrate": {
-      "optional": true
-    },
     "webpack-bundle-analyzer": {
       "optional": true
     },

packages/webpack-cli/src/webpack-cli.ts

@@ -1086,11 +1086,6 @@ class WebpackCLI implements IWebpackCLI {
         alias: "p",
         pkg: "@webpack-cli/generators",
       },
-      {
-        name: "migrate",
-        alias: "m",
-        pkg: "@webpack-cli/migrate",
-      },
       {
         name: "configtest [config-path]",
         alias: "t",

test/help/__snapshots__/help.test.js.snap.devServer3.webpack4

@@ -128,7 +128,6 @@ Commands:
   info|i [options]                                 Outputs information about your system.
   init|create|new|c|n [generation-path] [options]  Initialize a new webpack project.
   loader|l [output-path] [options]                 Scaffold a loader.
-  migrate|m <config-path> [new-config-path]        Migrate a configuration to a new version.
   plugin|p [output-path] [options]                 Scaffold a plugin.
   serve|server|s [entries...] [options]            Run the webpack dev server.
   version|v [commands...]                          Output the version number of 'webpack', 'webpack-cli' and 'webpack-dev-server' and commands.
@@ -184,7 +183,6 @@ Commands:
   info|i [options]                                 Outputs information about your system.
   init|create|new|c|n [generation-path] [options]  Initialize a new webpack project.
   loader|l [output-path] [options]                 Scaffold a loader.
-  migrate|m <config-path> [new-config-path]        Migrate a configuration to a new version.
   plugin|p [output-path] [options]                 Scaffold a plugin.
   serve|server|s [entries...] [options]            Run the webpack dev server.
   version|v [commands...]                          Output the version number of 'webpack', 'webpack-cli' and 'webpack-dev-server' and commands.
@@ -240,7 +238,6 @@ Commands:
   info|i [options]                                 Outputs information about your system.
   init|create|new|c|n [generation-path] [options]  Initialize a new webpack project.
   loader|l [output-path] [options]                 Scaffold a loader.
-  migrate|m <config-path> [new-config-path]        Migrate a configuration to a new version.
   plugin|p [output-path] [options]                 Scaffold a plugin.
   serve|server|s [entries...] [options]            Run the webpack dev server.
   version|v [commands...]                          Output the version number of 'webpack', 'webpack-cli' and 'webpack-dev-server' and commands.
@@ -1135,128 +1132,6 @@ CLI documentation: https://webpack.js.org/api/cli/.
 Made with ♥ by the webpack team."
 `;
 
-exports[`help should show help information for 'm' command using command syntax: stderr 1`] = `""`;
-
-exports[`help should show help information for 'm' command using command syntax: stdout 1`] = `
-"Usage: webpack migrate|m <config-path> [new-config-path]
-
-Migrate a configuration to a new version.
-
-Global options:
-  --color               Enable colors on console.
-  --no-color            Disable colors on console.
-  -v, --version         Output the version number of 'webpack', 'webpack-cli' and 'webpack-dev-server' and commands.
-  -h, --help [verbose]  Display help for commands and options.
-
-To see list of all supported commands and options run 'webpack --help=verbose'.
-
-Webpack documentation: https://webpack.js.org/.
-CLI documentation: https://webpack.js.org/api/cli/.
-Made with ♥ by the webpack team."
-`;
-
-exports[`help should show help information for 'm' command using the "--help" option: stderr 1`] = `""`;
-
-exports[`help should show help information for 'm' command using the "--help" option: stdout 1`] = `
-"Usage: webpack migrate|m <config-path> [new-config-path]
-
-Migrate a configuration to a new version.
-
-Global options:
-  --color               Enable colors on console.
-  --no-color            Disable colors on console.
-  -v, --version         Output the version number of 'webpack', 'webpack-cli' and 'webpack-dev-server' and commands.
-  -h, --help [verbose]  Display help for commands and options.
-
-To see list of all supported commands and options run 'webpack --help=verbose'.
-
-Webpack documentation: https://webpack.js.org/.
-CLI documentation: https://webpack.js.org/api/cli/.
-Made with ♥ by the webpack team."
-`;
-
-exports[`help should show help information for 'migrate' and respect the "--color" flag using the "--help" option: stderr 1`] = `""`;
-
-exports[`help should show help information for 'migrate' and respect the "--color" flag using the "--help" option: stdout 1`] = `
-"Usage: webpack migrate|m <config-path> [new-config-path]
-
-Migrate a configuration to a new version.
-
-Global options:
-  --color               Enable colors on console.
-  --no-color            Disable colors on console.
-  -v, --version         Output the version number of 'webpack', 'webpack-cli'
-                        and 'webpack-dev-server' and commands.
-  -h, --help [verbose]  Display help for commands and options.
-
-To see list of all supported commands and options run 'webpack --help=verbose'.
-
-Webpack documentation: https://webpack.js.org/.
-CLI documentation: https://webpack.js.org/api/cli/.
-Made with ♥ by the webpack team."
-`;
-
-exports[`help should show help information for 'migrate' and respect the "--no-color" flag using the "--help" option: stderr 1`] = `""`;
-
-exports[`help should show help information for 'migrate' and respect the "--no-color" flag using the "--help" option: stdout 1`] = `
-"Usage: webpack migrate|m <config-path> [new-config-path]
-
-Migrate a configuration to a new version.
-
-Global options:
-  --color               Enable colors on console.
-  --no-color            Disable colors on console.
-  -v, --version         Output the version number of 'webpack', 'webpack-cli'
-                        and 'webpack-dev-server' and commands.
-  -h, --help [verbose]  Display help for commands and options.
-
-To see list of all supported commands and options run 'webpack --help=verbose'.
-
-Webpack documentation: https://webpack.js.org/.
-CLI documentation: https://webpack.js.org/api/cli/.
-Made with ♥ by the webpack team."
-`;
-
-exports[`help should show help information for 'migrate' command using command syntax: stderr 1`] = `""`;
-
-exports[`help should show help information for 'migrate' command using command syntax: stdout 1`] = `
-"Usage: webpack migrate|m <config-path> [new-config-path]
-
-Migrate a configuration to a new version.
-
-Global options:
-  --color               Enable colors on console.
-  --no-color            Disable colors on console.
-  -v, --version         Output the version number of 'webpack', 'webpack-cli' and 'webpack-dev-server' and commands.
-  -h, --help [verbose]  Display help for commands and options.
-
-To see list of all supported commands and options run 'webpack --help=verbose'.
-
-Webpack documentation: https://webpack.js.org/.
-CLI documentation: https://webpack.js.org/api/cli/.
-Made with ♥ by the webpack team."
-`;
-
-exports[`help should show help information for 'migrate' command using the "--help" option: stderr 1`] = `""`;
-
-exports[`help should show help information for 'migrate' command using the "--help" option: stdout 1`] = `
-"Usage: webpack migrate|m <config-path> [new-config-path]
-
-Migrate a configuration to a new version.
-
-Global options:
-  --color               Enable colors on console.
-  --no-color            Disable colors on console.
-  -v, --version         Output the version number of 'webpack', 'webpack-cli' and 'webpack-dev-server' and commands.
-  -h, --help [verbose]  Display help for commands and options.
-
-To see list of all supported commands and options run 'webpack --help=verbose'.
-
-Webpack documentation: https://webpack.js.org/.
-CLI documentation: https://webpack.js.org/api/cli/.
-Made with ♥ by the webpack team."
-`;
-
 exports[`help should show help information for 'n' command using command syntax: stderr 1`] = `""`;
 
 exports[`help should show help information for 'n' command using command syntax: stdout 1`] = `
@@ -2454,7 +2329,6 @@ Commands:
   info|i [options]                                 Outputs information about your system.
   init|create|new|c|n [generation-path] [options]  Initialize a new webpack project.
   loader|l [output-path] [options]                 Scaffold a loader.
-  migrate|m <config-path> [new-config-path]        Migrate a configuration to a new version.
   plugin|p [output-path] [options]                 Scaffold a plugin.
   serve|server|s [entries...] [options]            Run the webpack dev server.
   version|v [commands...]                          Output the version number of 'webpack', 'webpack-cli' and 'webpack-dev-server' and commands.
@@ -2510,7 +2384,6 @@ Commands:
   info|i [options]                                 Outputs information about your system.
   init|create|new|c|n [generation-path] [options]  Initialize a new webpack project.
   loader|l [output-path] [options]                 Scaffold a loader.
-  migrate|m <config-path> [new-config-path]        Migrate a configuration to a new version.
   plugin|p [output-path] [options]                 Scaffold a plugin.
   serve|server|s [entries...] [options]            Run the webpack dev server.
   version|v [commands...]                          Output the version number of 'webpack', 'webpack-cli' and 'webpack-dev-server' and commands.
@@ -2738,7 +2611,6 @@ Commands:
   info|i [options]                                 Outputs information about your system.
   init|create|new|c|n [generation-path] [options]  Initialize a new webpack project.
   loader|l [output-path] [options]                 Scaffold a loader.
-  migrate|m <config-path> [new-config-path]        Migrate a configuration to a new version.
   plugin|p [output-path] [options]                 Scaffold a plugin.
   serve|server|s [entries...] [options]            Run the webpack dev server.
   version|v [commands...]                          Output the version number of 'webpack', 'webpack-cli' and 'webpack-dev-server' and commands.
@@ -2792,7 +2664,6 @@ Commands:
   info|i [options]                                 Outputs information about your system.
   init|create|new|c|n [generation-path] [options]  Initialize a new webpack project.
   loader|l [output-path] [options]                 Scaffold a loader.
-  migrate|m <config-path> [new-config-path]        Migrate a configuration to a new version.
   plugin|p [output-path] [options]                 Scaffold a plugin.
   serve|server|s [entries...] [options]            Run the webpack dev server.
   version|v [commands...]                          Output the version number of 'webpack', 'webpack-cli' and 'webpack-dev-server' and commands.