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index.js
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index.js
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'use strict';
/* global __resourceQuery WorkerGlobalScope self */
/* eslint prefer-destructuring: off */
const stripAnsi = require('strip-ansi');
const log = require('loglevel').getLogger('webpack-dev-server');
const socket = require('./socket');
const overlay = require('./overlay');
const sendMessage = require('./utils/sendMessage');
const reloadApp = require('./utils/reloadApp');
const createSocketUrl = require('./utils/createSocketUrl');
const status = {
isUnloading: false,
currentHash: '',
};
const options = {
hot: false,
hotReload: true,
liveReload: false,
initial: true,
useWarningOverlay: false,
useErrorOverlay: false,
useProgress: false,
};
const socketUrl = createSocketUrl(__resourceQuery);
self.addEventListener('beforeunload', () => {
status.isUnloading = true;
});
if (typeof window !== 'undefined') {
const qs = window.location.search.toLowerCase();
options.hotReload = qs.indexOf('hotreload=false') === -1;
}
const INFO = 'info';
const WARN = 'warn';
const ERROR = 'error';
const DEBUG = 'debug';
const TRACE = 'trace';
const SILENT = 'silent';
// deprecated
// TODO: remove these at major released
// https://github.com/webpack/webpack-dev-server/pull/1825
const WARNING = 'warning';
const NONE = 'none';
// Set the default log level
log.setDefaultLevel(INFO);
const onSocketMsg = {
hot() {
options.hot = true;
log.info('[WDS] Hot Module Replacement enabled.');
},
liveReload() {
options.liveReload = true;
log.info('[WDS] Live Reloading enabled.');
},
invalid() {
log.info('[WDS] App updated. Recompiling...');
// fixes #1042. overlay doesn't clear if errors are fixed but warnings remain.
if (options.useWarningOverlay || options.useErrorOverlay) {
overlay.clear();
}
sendMessage('Invalid');
},
hash(hash) {
status.currentHash = hash;
},
'still-ok': function stillOk() {
log.info('[WDS] Nothing changed.');
if (options.useWarningOverlay || options.useErrorOverlay) {
overlay.clear();
}
sendMessage('StillOk');
},
'log-level': function logLevel(level) {
const hotCtx = require.context('webpack/hot', false, /^\.\/log$/);
if (hotCtx.keys().indexOf('./log') !== -1) {
hotCtx('./log').setLogLevel(level);
}
switch (level) {
case INFO:
case WARN:
case DEBUG:
case TRACE:
case ERROR:
log.setLevel(level);
break;
// deprecated
case WARNING:
// loglevel's warning name is different from webpack's
log.setLevel('warn');
break;
// deprecated
case NONE:
case SILENT:
log.disableAll();
break;
default:
log.error(`[WDS] Unknown clientLogLevel '${level}'`);
}
},
overlay(value) {
if (typeof document !== 'undefined') {
if (typeof value === 'boolean') {
options.useWarningOverlay = false;
options.useErrorOverlay = value;
} else if (value) {
options.useWarningOverlay = value.warnings;
options.useErrorOverlay = value.errors;
}
}
},
progress(progress) {
if (typeof document !== 'undefined') {
options.useProgress = progress;
}
},
'progress-update': function progressUpdate(data) {
if (options.useProgress) {
log.info(`[WDS] ${data.percent}% - ${data.msg}.`);
}
sendMessage('Progress', data);
},
ok() {
sendMessage('Ok');
if (options.useWarningOverlay || options.useErrorOverlay) {
overlay.clear();
}
if (options.initial) {
return (options.initial = false);
} // eslint-disable-line no-return-assign
reloadApp(options, status);
},
'content-changed': function contentChanged() {
log.info('[WDS] Content base changed. Reloading...');
self.location.reload();
},
warnings(warnings) {
log.warn('[WDS] Warnings while compiling.');
const strippedWarnings = warnings.map((warning) => stripAnsi(warning));
sendMessage('Warnings', strippedWarnings);
for (let i = 0; i < strippedWarnings.length; i++) {
log.warn(strippedWarnings[i]);
}
if (options.useWarningOverlay) {
overlay.showMessage(warnings);
}
if (options.initial) {
return (options.initial = false);
} // eslint-disable-line no-return-assign
reloadApp(options, status);
},
errors(errors) {
log.error('[WDS] Errors while compiling. Reload prevented.');
const strippedErrors = errors.map((error) => stripAnsi(error));
sendMessage('Errors', strippedErrors);
for (let i = 0; i < strippedErrors.length; i++) {
log.error(strippedErrors[i]);
}
if (options.useErrorOverlay) {
overlay.showMessage(errors);
}
options.initial = false;
},
error(error) {
log.error(error);
},
close() {
log.error('[WDS] Disconnected!');
sendMessage('Close');
},
};
socket(socketUrl, onSocketMsg);