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const webpack = require('webpack');
const WebpackDevServer = require('webpack-dev-server');
const { rimrafSync } = require('rimraf');
const { merge } = require('webpack-merge');
const { createFile, dynamicImport, errorMessageHandler, isPromise, OPTIONS } = require('./global');
const { color, consoleMessage } = require('./logger');
const { common, development, preprocessLoader, production } = require('./wpConfigs');
/**
* @module webpack
*/
/**
* Clean the "distribution" directory. Compensate for Webpack not cleaning output on development.
*
* @param {object} dotenv
* @param {string} dotenv._BUILD_DIST_DIR
*/
const cleanDist = ({ _BUILD_DIST_DIR: DIST_DIR } = OPTIONS.dotenv || {}) => {
rimrafSync(path.join(DIST_DIR, '*'), { glob: true });
};
// ToDo: review allowing mergeWithCustom
/**
* Webpack merge base configuration files. If available merge extended configuration files.
*
* @param {object} options
* @param {string} options.nodeEnv
* @param {object} options.dotenv
* @param {Array<string>} options.extendedConfigs
* @param {object} settings
* @param {Function} settings.consoleMessage
* @param {Function} settings.dynamicImport
* @param {Function} settings.isPromise
* @param {Function} settings.webpackCommonConfig
* @param {Function} settings.webpackDevelopmentConfig
* @param {Function} settings.webpackPreprocessLoaderConfig
* @param {Function} settings.webpackProductionConfig
* @returns {Promise<object>}
*/
const createWpConfig = async (
{ nodeEnv, dotenv = {}, extendedConfigs } = OPTIONS,
{
consoleMessage: aliasConsoleMessage = consoleMessage,
dynamicImport: aliasDynamicImport = dynamicImport,
isPromise: aliasIsPromise = isPromise,
webpackCommonConfig = common,
webpackDevelopmentConfig = development,
webpackPreprocessLoaderConfig = preprocessLoader,
webpackProductionConfig = production
} = {}
) => {
const baseConfigs = [
webpackCommonConfig(),
webpackPreprocessLoaderConfig(),
(nodeEnv === 'development' && webpackDevelopmentConfig()) || webpackProductionConfig()
];
const extended = [];
if (Array.isArray(extendedConfigs) && extendedConfigs?.length) {
const result = await Promise.allSettled(extendedConfigs.map(arg => aliasDynamicImport(arg)));
// Filter initial file results for fulfilled and actual values
const filteredResults = result.filter(({ status, value }, index) => {
const isFulfilled = status === 'fulfilled';
const isValue = !!value;
Iif (!isFulfilled || !isValue) {
aliasConsoleMessage.warn(`Error loading, ${extendedConfigs[index]}`);
}
return isFulfilled && isValue;
});
// Run subsequent response promises, functions, or results again
const parsedResults = await Promise.allSettled(
filteredResults.map(({ value }) => {
const defaultValue = value?.default || value;
Iif (aliasIsPromise(defaultValue) || typeof defaultValue === 'function') {
return defaultValue(dotenv);
}
return defaultValue;
})
);
// Filter the subsequent promise, functions, or results again
extended.push(
...parsedResults
.filter(({ status, value }) => {
const isFulfilled = status === 'fulfilled';
const isValue = !!value;
return isFulfilled && isValue;
})
.map(({ value }) => value)
);
}
return merge(...baseConfigs, ...extended);
};
/**
* webpack callback error and stats handler. Separated for testing.
*
* @param {*} err
* @param {*} stats
* @param {object} options
* @param {undefined|string} options.stats
* @param {undefined|string} options.statsFile
* @param {undefined|string} options.statsPath
* @param {object} settings
* @param {object} settings.color
* @param {Function} settings.consoleMessage
* @param {Function} settings.createFile
* @param {Function} settings.errorMessageHandler
*/
const startWpErrorStatsHandler = (
err,
stats,
{ stats: statsLevel, statsFile, statsPath } = OPTIONS,
{
color: aliasColor = color,
consoleMessage: aliasConsoleMessage = consoleMessage,
createFile: aliasCreateFile = createFile,
errorMessageHandler: aliasErrorMessageHandler = errorMessageHandler
} = {}
) => {
if (err) {
aliasConsoleMessage.error('Production build errors...', aliasErrorMessageHandler(err));
return;
}
if (stats?.toJson && statsFile && statsPath) {
aliasCreateFile(JSON.stringify(stats.toJson(statsLevel), null, 2), {
dir: statsPath,
filename: statsFile
});
aliasConsoleMessage.success('Stats file created');
}
if (stats?.hasErrors && stats.hasErrors()) {
const compileErrors = aliasErrorMessageHandler(stats?.compilation?.errors);
aliasConsoleMessage.error(
'Production compile errors...',
...((Array.isArray(compileErrors) && compileErrors) || [compileErrors])
);
return;
}
Eif (stats?.toString) {
const formattedStats = stats
.toString(statsLevel)
.split('\n')
.map(v => (!/^\s*/.test(v) && ` * ${v}`) || ` ${v}`)
.join('\n');
aliasConsoleMessage.log(
`Stats level ${aliasColor.YELLOW || ''}${statsLevel}${aliasColor.NOCOLOR || ''}...`,
(formattedStats.trim() === '' && ' No stats output') || formattedStats
);
}
aliasConsoleMessage.success('Build completed');
};
/**
* Start webpack development or production.
*
* @param {object} webpackConfig
* @param {object} options
* @param {string} options.nodeEnv
* @param {object} settings
* @param {Function} settings.consoleMessage
* @param {Function} settings.startWpErrorStatsHandler
* @param {Function} settings.webpack
* @param {Function} settings.WebpackDevServer
* @returns {Promise<void>}
*/
const startWp = async (
webpackConfig,
{ nodeEnv } = OPTIONS,
{
consoleMessage: aliasConsoleMessage = consoleMessage,
startWpErrorStatsHandler: aliasStartWpErrorStatsHandler = startWpErrorStatsHandler,
webpack: aliasWebpack = webpack,
WebpackDevServer: AliasWebpackDevServer = WebpackDevServer
} = {}
) => {
if (webpackConfig?.devServer && nodeEnv === 'development') {
aliasConsoleMessage.info('Development starting....');
const compiler = aliasWebpack(webpackConfig);
const server = new AliasWebpackDevServer(webpackConfig.devServer, compiler);
await server.start();
return;
}
aliasConsoleMessage.info('Production build starting....');
aliasWebpack(webpackConfig, (err, stats) => {
aliasStartWpErrorStatsHandler(err, stats);
});
};
module.exports = {
cleanDist,
createWpConfig,
startWp,
startWpErrorStatsHandler
};
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