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chore: implement basic devServer

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This commit is contained in:
Igor Randjelovic
2021-03-26 22:16:36 +01:00
parent bb23bca3ce
commit 75e6009b8a
7 changed files with 198 additions and 58 deletions
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82
packages/webpack5/src/bin/index.ts
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@ -8,6 +8,7 @@ import path from 'path';
import fs from 'fs';
import { parseEnvFlags } from '../cli/parseEnvFlags';
import { run } from "./devServer";
const defaultConfig = path.resolve(
__dirname,
@ -43,9 +44,10 @@ program
program
.command('build')
.description('Build...')
.option('--env [name]', 'environment options')
.option('--hmr', 'enable HMR')
.option('--no-hmr', 'disable HMR')
.option('--env [name]', 'environment name')
.option('--config [path]', 'config path')
// .option('--hmr', 'enable HMR')
// .option('--no-hmr', 'disable HMR')
.option('--watch', 'watch for changes')
.allowUnknownOption()
.action((options, command) => {
@ -56,47 +58,69 @@ program
if (options.env) {
env['env'] = options.env;
}
// const env = {
// platform: 'ios',
// verbose: true,
// appResourcesPath: 'App_Resources',
// appPath: 'src'
// }
const configPath = path.resolve(process.cwd(), 'webpack.config.js');
const configPath = (() => {
if (options.config) {
return path.resolve(options.config);
}
return path.resolve(process.cwd(), 'webpack.config.js')
})();
// todo: validate config exists
// todo: guard against invalid config
let configuration;
let configuration: webpack.Configuration;
try {
configuration = require(configPath)(env);
} catch (ignore) {
console.log(ignore);
} catch (err) {
console.log(err);
}
if (!configuration) {
console.log('No configuration!!!!!');
console.log('No configuration!');
return;
}
const compiler = webpack(configuration);
// todo: handle --watch flag
// todo: promisify callback?
compiler.watch(
{
ignored: ['platforms'],
},
(err, stats) => {
if (stats) {
console.log(
stats.toString({
colors: true,
})
);
const webpackCompilationCallback = (err: webpack.WebpackError, stats: webpack.Stats) => {
if (err) {
// Do not keep cache anymore
compiler.purgeInputFileSystem();
console.error(err.stack || err);
if (err.details) {
console.error(err.details);
}
// err && console.log(err)
process.exitCode = 1;
return;
}
);
if (stats) {
console.log(
stats.toString({
chunks: false,
colors: true,
})
);
}
}
if (options.watch) {
// run dev server
run();
console.log('webpack is watching the files...')
compiler.watch(
configuration.watchOptions ?? {},
webpackCompilationCallback
);
} else {
compiler.run(
webpackCompilationCallback
);
}
});
program.parse(process.argv);