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devserver.config.ts
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devserver.config.ts
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import { logger } from '@nrwl/devkit';
import { Configuration as WebpackDevServerConfiguration } from 'webpack-dev-server';
import * as path from 'path';
import { basename, resolve } from 'path';
import { getWebConfig } from './web.config';
import { WebWebpackExecutorOptions } from '../executors/webpack/webpack.impl';
import { WebDevServerOptions } from '../executors/dev-server/dev-server.impl';
import { buildServePath } from './serve-path';
import { OptimizationOptions } from './shared-models';
import { readFileSync } from 'fs-extra';
import { IndexHtmlWebpackPlugin } from './/webpack/plugins/index-html-webpack-plugin';
import { generateEntryPoints } from './webpack/package-chunk-sort';
export function getDevServerConfig(
workspaceRoot: string,
projectRoot: string,
sourceRoot: string,
buildOptions: WebWebpackExecutorOptions,
serveOptions: WebDevServerOptions
): Partial<WebpackDevServerConfiguration> {
const optimizationFields = Object.keys(buildOptions.optimization);
const isScriptOptimizeOn =
optimizationFields.length > 0 &&
optimizationFields.some((key) => buildOptions.optimization[key] === true);
const webpackConfig = getWebConfig(
workspaceRoot,
projectRoot,
sourceRoot,
buildOptions,
true, // Don't need to support legacy browsers for dev.
isScriptOptimizeOn
);
(webpackConfig as any).devServer = getDevServerPartial(
workspaceRoot,
serveOptions,
buildOptions
);
const {
deployUrl,
subresourceIntegrity,
scripts = [],
styles = [],
index,
baseHref,
} = buildOptions;
webpackConfig.plugins.push(
new IndexHtmlWebpackPlugin({
indexPath: resolve(workspaceRoot, index),
outputPath: basename(index),
baseHref,
entrypoints: generateEntryPoints({ scripts, styles }),
deployUrl,
sri: subresourceIntegrity,
moduleEntrypoints: [],
noModuleEntrypoints: ['polyfills-es5'],
})
);
return webpackConfig;
}
function getDevServerPartial(
root: string,
options: WebDevServerOptions,
buildOptions: WebWebpackExecutorOptions
): WebpackDevServerConfiguration {
const servePath = buildServePath(buildOptions);
const { scripts: scriptsOptimization, styles: stylesOptimization } =
buildOptions.optimization as OptimizationOptions;
const config: WebpackDevServerConfiguration = {
host: options.host,
port: options.port,
headers: { 'Access-Control-Allow-Origin': '*' },
historyApiFallback: {
index: `${servePath}${path.basename(buildOptions.index)}`,
disableDotRule: true,
htmlAcceptHeaders: ['text/html', 'application/xhtml+xml'],
},
onListening(server: any) {
logger.info(
`NX Web Development Server is listening at ${
server.options.https ? 'https' : 'http'
}://${server.options.host}:${server.options.port}${buildServePath(
buildOptions
)}`
);
},
open: options.open,
static: false,
compress: scriptsOptimization || stylesOptimization,
https: options.ssl,
devMiddleware: {
publicPath: servePath,
stats: false,
},
client: {
webSocketURL: options.publicHost,
overlay: {
errors: !(scriptsOptimization || stylesOptimization),
warnings: false,
},
},
liveReload: options.hmr ? false : options.liveReload, // disable liveReload if hmr is enabled
hot: options.hmr,
};
if (options.ssl && options.sslKey && options.sslCert) {
config.https = getSslConfig(root, options);
}
if (options.proxyConfig) {
config.proxy = getProxyConfig(root, options);
}
if (options.allowedHosts) {
config.allowedHosts = options.allowedHosts.split(',');
}
return config;
}
function getSslConfig(root: string, options: WebDevServerOptions) {
return {
key: readFileSync(path.resolve(root, options.sslKey), 'utf-8'),
cert: readFileSync(path.resolve(root, options.sslCert), 'utf-8'),
};
}
function getProxyConfig(root: string, options: WebDevServerOptions) {
const proxyPath = path.resolve(root, options.proxyConfig as string);
return require(proxyPath);
}