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test: add snapshot for cli flags (#3132)
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‎README.md

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--config-name <value...> Name of the configuration to use.
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-m, --merge Merge two or more configurations using 'webpack-merge'.
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--env <value...> Environment passed to the configuration when it is a function.
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--node-env <value> Sets process.env.NODE_ENV to the specified value.
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--progress [value] Print compilation progress during build.
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-j, --json [value] Prints result as JSON or store it in a file.
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-d, --devtool <value> Determine source maps to use.
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--stats [value] It instructs webpack on how to treat the stats e.g. verbose.
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--no-stats Disable stats output.
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-t, --target <value...> Sets the build target e.g. node.
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--no-target Negative 'target' option.
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--watch-options-stdin Stop watching when stdin stream has ended.
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--no-watch-options-stdin Do not stop watching when stdin stream has ended.
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--host <value> The hostname/ip address the server will bind to.
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--http2 Use HTTP/2, must be used with HTTPS.
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--no-http2 Do not use HTTP/2.
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--bonjour Broadcasts the server via ZeroConf networking on start.
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--no-bonjour Negative 'bonjour' option.
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--client-progress Print compilation progress in percentage in the browser.
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--client-overlay Show a full-screen overlay in the browser when there are compiler errors or warnings.
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--no-client-overlay Do not show a full-screen overlay in the browser when there are compiler errors or warnings.

‎globalSetupTest.js

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// eslint-disable-next-line import/no-extraneous-dependencies
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const tcpPortUsed = require('tcp-port-used');
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const { version } = require('webpack');
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const ports = require('./test/ports-map');
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console.log(`\n Running tests for webpack @${version} \n`);
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async function validatePorts() {
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const samples = [];
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‎jest.config.js

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],
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moduleFileExtensions: ['js', 'json'],
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testMatch: ['**/test/**/*.test.js'],
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snapshotResolver: '<rootDir>/test/helpers/snapshotResolver.js',
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setupFilesAfterEnv: ['<rootDir>/setupTest.js'],
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globalSetup: '<rootDir>/globalSetupTest.js',
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testRunner: 'jest-circus/runner',

‎test/__snapshots__/Validation.test.js.snap renamed to ‎test/__snapshots__/Validation.test.js.snap.webpack4

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‎test/__snapshots__/Validation.test.js.snap.webpack5

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// Jest Snapshot v1, https://goo.gl/fbAQLP
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exports[`Validation validation should fail validation for invalid \`hot\` configuration 1`] = `
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"Invalid configuration object. Object has been initialized using a configuration object that does not match the API schema.
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- configuration.hot should be one of these:
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boolean | \\"only\\"
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Details:
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* configuration.hot should be a boolean.
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* configuration.hot should be \\"only\\"."
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`;
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exports[`Validation validation should fail validation for invalid \`needClientEntry\` configuration 1`] = `
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"Invalid configuration object. Object has been initialized using a configuration object that does not match the API schema.
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- configuration.client.needClientEntry should be one of these:
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boolean | function
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Details:
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* configuration.client.needClientEntry should be a boolean.
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* configuration.client.needClientEntry should be an instance of function."
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`;
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exports[`Validation validation should fail validation for invalid \`needHotEntry\` configuration 1`] = `
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"Invalid configuration object. Object has been initialized using a configuration object that does not match the API schema.
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- configuration.client.needHotEntry should be one of these:
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boolean | function
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Details:
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* configuration.client.needHotEntry should be a boolean.
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* configuration.client.needHotEntry should be an instance of function."
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`;
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exports[`Validation validation should fail validation for invalid \`static\` configuration 1`] = `
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"Invalid configuration object. Object has been initialized using a configuration object that does not match the API schema.
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- configuration.static should be one of these:
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boolean | non-empty string | object { directory?, staticOptions?, publicPath?, serveIndex?, watch? } | [non-empty string | object { directory?, staticOptions?, publicPath?, serveIndex?, watch? }, ...] (should not have fewer than 1 item)
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Details:
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* configuration.static[0] should be one of these:
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non-empty string | object { directory?, staticOptions?, publicPath?, serveIndex?, watch? }
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Details:
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* configuration.static[0] should be a non-empty string.
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* configuration.static[0] should be an object:
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object { directory?, staticOptions?, publicPath?, serveIndex?, watch? }"
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`;
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exports[`Validation validation should fail validation for no additional properties 1`] = `
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"Invalid configuration object. Object has been initialized using a configuration object that does not match the API schema.
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- configuration has an unknown property 'additional'. These properties are valid:
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object { bonjour?, client?, compress?, dev?, firewall?, headers?, historyApiFallback?, host?, hot?, http2?, https?, liveReload?, onAfterSetupMiddleware?, onBeforeSetupMiddleware?, onListening?, open?, port?, proxy?, public?, setupExitSignals?, static?, transportMode?, watchFiles? }"
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`;

‎test/cli/__snapshots__/cli.test.js.snap

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‎test/cli/__snapshots__/cli.test.js.snap.webpack4

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// Jest Snapshot v1, https://goo.gl/fbAQLP
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exports[`CLI --host :: (IPv6): stderr 1`] = `
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"<i> [webpack-dev-server] Project is running at:
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<i> [webpack-dev-server] Loopback: http://localhost:<port>/
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<i> [webpack-dev-server] On Your Network (IPv4): http://<network-ip-v4>:<port>/
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<i> [webpack-dev-server] On Your Network (IPv6): http://[<network-ip-v6>]:<port>/
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<i> [webpack-dev-server] Content not from webpack is served from '<cwd>/public' directory"
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`;
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exports[`CLI --host ::1 (IPv6): stderr 1`] = `
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"<i> [webpack-dev-server] Project is running at:
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<i> [webpack-dev-server] Loopback: http://[::1]:<port>/
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<i> [webpack-dev-server] Content not from webpack is served from '<cwd>/public' directory"
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`;
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exports[`CLI --host <IPv4>: stderr 1`] = `
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"<i> [webpack-dev-server] Project is running at:
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<i> [webpack-dev-server] On Your Network (IPv4): http://<network-ip-v4>:<port>/
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<i> [webpack-dev-server] Content not from webpack is served from '<cwd>/public' directory"
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`;
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exports[`CLI --host <local-ip>: stderr 1`] = `
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"<i> [webpack-dev-server] Project is running at:
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<i> [webpack-dev-server] On Your Network (IPv4): http://<network-ip-v4>:<port>/
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<i> [webpack-dev-server] Content not from webpack is served from '<cwd>/public' directory"
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`;
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exports[`CLI --host <local-ipv4>: stderr 1`] = `
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"<i> [webpack-dev-server] Project is running at:
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<i> [webpack-dev-server] On Your Network (IPv4): http://<network-ip-v4>:<port>/
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<i> [webpack-dev-server] Content not from webpack is served from '<cwd>/public' directory"
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`;
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exports[`CLI --host 0.0.0.0 (IPv4): stderr 1`] = `
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"<i> [webpack-dev-server] Project is running at:
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<i> [webpack-dev-server] Loopback: http://localhost:<port>/
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<i> [webpack-dev-server] On Your Network (IPv4): http://<network-ip-v4>:<port>/
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<i> [webpack-dev-server] On Your Network (IPv6): http://[<network-ip-v6>]:<port>/
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<i> [webpack-dev-server] Content not from webpack is served from '<cwd>/public' directory"
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`;
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exports[`CLI --host 0:0:0:0:0:FFFF:7F00:0001 (IPv6): stderr 1`] = `
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"<i> [webpack-dev-server] Project is running at:
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<i> [webpack-dev-server] On Your Network (IPv4): http://127.0.0.1:<port>/
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<i> [webpack-dev-server] On Your Network (IPv6): http://[::ffff:127.0.0.1]:<port>/
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<i> [webpack-dev-server] Content not from webpack is served from '<cwd>/public' directory"
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`;
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exports[`CLI --host 127.0.0.1 (IPv4): stderr 1`] = `
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"<i> [webpack-dev-server] Project is running at:
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<i> [webpack-dev-server] Loopback: http://127.0.0.1:<port>/
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<i> [webpack-dev-server] Content not from webpack is served from '<cwd>/public' directory"
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`;
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exports[`CLI --host and --port are unspecified: stderr 1`] = `
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"<i> [webpack-dev-server] Project is running at:
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<i> [webpack-dev-server] Loopback: http://localhost:<port>/
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<i> [webpack-dev-server] On Your Network (IPv4): http://<network-ip-v4>:<port>/
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<i> [webpack-dev-server] On Your Network (IPv6): http://[<network-ip-v6>]:<port>/
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<i> [webpack-dev-server] Content not from webpack is served from '<cwd>/public' directory"
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`;
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exports[`CLI --host localhost --port 9999: stderr 1`] = `
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"<i> [webpack-dev-server] Project is running at:
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<i> [webpack-dev-server] Loopback: http://localhost:<port>/, http://127.0.0.1:<port>/
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<i> [webpack-dev-server] Content not from webpack is served from '<cwd>/public' directory"
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`;
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exports[`CLI --host localhost: stderr 1`] = `
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"<i> [webpack-dev-server] Project is running at:
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<i> [webpack-dev-server] Loopback: http://localhost:<port>/, http://127.0.0.1:<port>/
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<i> [webpack-dev-server] Content not from webpack is served from '<cwd>/public' directory"
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`;
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exports[`CLI should generate correct cli flags 1`] = `
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"Usage: webpack serve|s [entries...] [options]
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Run the webpack dev server.
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Options:
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-c, --config <value...> Provide path to a webpack configuration file e.g.
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./webpack.config.js.
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--config-name <value...> Name of the configuration to use.
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-m, --merge Merge two or more configurations using
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'webpack-merge'.
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--env <value...> Environment passed to the configuration when it is
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a function.
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--node-env <value> Sets process.env.NODE_ENV to the specified value.
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--progress [value] Print compilation progress during build.
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-j, --json [value] Prints result as JSON or store it in a file.
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--entry <value...> The entry point(s) of your application e.g.
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./src/main.js.
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-o, --output-path <value> Output location of the file generated by webpack
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e.g. ./dist/.
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-t, --target <value> Sets the build target e.g. node.
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-d, --devtool <value> Determine source maps to use.
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--mode <value> Defines the mode to pass to webpack.
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--name <value> Name of the configuration. Used when loading
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multiple configurations.
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--stats [value] It instructs webpack on how to treat the stats
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e.g. verbose.
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--no-stats Disable stats output.
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--watch-options-stdin Stop watching when stdin stream has ended.
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--no-watch-options-stdin Do not stop watching when stdin stream has ended.
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--host <value> The hostname/ip address the server will bind to.
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--port <value> The port server will listen to.
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--static [value...] A directory to serve static content from.
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--no-static Negative 'static' option.
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--live-reload Enables live reloading on changing files.
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--no-live-reload Disables live reloading on changing files.
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--https Use HTTPS protocol.
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--no-https Do not use HTTPS protocol.
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--http2 Use HTTP/2, must be used with HTTPS.
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--no-http2 Do not use HTTP/2.
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--bonjour Broadcasts the server via ZeroConf networking on
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start.
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--no-bonjour Negative 'bonjour' option.
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--client-progress Print compilation progress in percentage in the
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browser.
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--no-client-progress Negative 'client-progress' option.
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--client-overlay Show a full-screen overlay in the browser when
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there are compiler errors or warnings.
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--no-client-overlay Do not show a full-screen overlay in the browser
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when there are compiler errors or warnings.
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--setup-exit-signals Close and exit the process on SIGINT and SIGTERM.
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--no-setup-exit-signals Do not close and exit the process on SIGNIT and
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SIGTERM.
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--open [value...] Open the default browser.
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--no-open Do not open the default browser.
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--open-app <value> Open specified browser.
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--open-target [value...] Open specified route in browser.
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--no-open-target Do not open specified route in browser.
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--client-logging <value> Log level in the browser (none, error, warn, info,
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log, verbose).
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--history-api-fallback Fallback to /index.html for Single Page
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Applications.
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--no-history-api-fallback Do not fallback to /index.html for Single Page
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Applications.
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--compress Enable gzip compression.
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--no-compress Disable gzip compression.
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--public <value> The public hostname/ip address of the server.
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--firewall [value...] Enable firewall or set hosts that are allowed to
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access the dev server.
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--no-firewall Disable firewall.
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--watch-files <value...> Watch static files for file changes.
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Global options:
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--color Enable colors on console.
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--no-color Disable colors on console.
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-v, --version Output the version number of 'webpack',
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'webpack-cli' and 'webpack-dev-server' and
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commands.
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-h, --help [verbose] Display help for commands and options.
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To see list of all supported commands and options run 'webpack --help=verbose'.
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Webpack documentation: https://webpack.js.org/.
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CLI documentation: https://webpack.js.org/api/cli/.
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Made with ♥ by the webpack team."
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`;

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