index.ts
1.92 KB
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import type { PluginOption } from 'vite';
import fs from 'node:fs';
import fsp from 'node:fs/promises';
import { join } from 'node:path';
import { fileURLToPath } from 'node:url';
import { readPackageJSON } from '@vben/node-utils';
/**
* 用于生成将loading样式注入到项目中
* 为多app提供loading样式，无需在每个 app -> index.html单独引入
*/
async function viteInjectAppLoadingPlugin(
isBuild: boolean,
env: Record<string, any> = {},
loadingTemplate = 'loading.html',
): Promise<PluginOption | undefined> {
const loadingHtml = await getLoadingRawByHtmlTemplate(loadingTemplate);
const { version } = await readPackageJSON(process.cwd());
const envRaw = isBuild ? 'prod' : 'dev';
const cacheName = `'${env.VITE_APP_NAMESPACE}-${version}-${envRaw}-preferences-theme'`;
// 获取缓存的主题
// 保证黑暗主题下，刷新页面时，loading也是黑暗主题
const injectScript = `
<script data-app-loading="inject-js">
var theme = localStorage.getItem(${cacheName});
document.documentElement.classList.toggle('dark', /dark/.test(theme));
</script>
`;
if (!loadingHtml) {
return;
}
return {
enforce: 'pre',
name: 'vite:inject-app-loading',
transformIndexHtml: {
handler(html) {
const re = /<body\s*>/;
html = html.replace(re, `<body>${injectScript}${loadingHtml}`);
return html;
},
order: 'pre',
},
};
}
/**
* 用于获取loading的html模板
*/
async function getLoadingRawByHtmlTemplate(loadingTemplate: string) {
// 支持在app内自定义loading模板，模版参考default-loading.html即可
let appLoadingPath = join(process.cwd(), loadingTemplate);
if (!fs.existsSync(appLoadingPath)) {
const __dirname = fileURLToPath(new URL('.', import.meta.url));
appLoadingPath = join(__dirname, './default-loading.html');
}
return await fsp.readFile(appLoadingPath, 'utf8');
}
export { viteInjectAppLoadingPlugin };