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|
import load, { resolve } from '@proload/core';
import type { AstroConfig, AstroIntegration } from 'astro';
import autoprefixerPlugin from 'autoprefixer';
import fs from 'fs/promises';
import path from 'path';
import tailwindPlugin, { type Config as TailwindConfig } from 'tailwindcss';
import resolveConfig from 'tailwindcss/resolveConfig.js';
import { fileURLToPath } from 'url';
import type { CSSOptions, UserConfig } from 'vite';
function getDefaultTailwindConfig(srcUrl: URL): TailwindConfig {
return resolveConfig({
theme: {
extend: {},
},
plugins: [],
content: [path.join(fileURLToPath(srcUrl), `**`, `*.{astro,html,js,jsx,svelte,ts,tsx,vue}`)],
presets: undefined, // enable Tailwind's default preset
}) as TailwindConfig;
}
async function getUserConfig(root: URL, configPath?: string, isRestart = false) {
const resolvedRoot = fileURLToPath(root);
let userConfigPath: string | undefined;
if (configPath) {
const configPathWithLeadingSlash = /^\.*\//.test(configPath) ? configPath : `./${configPath}`;
userConfigPath = fileURLToPath(new URL(configPathWithLeadingSlash, root));
}
if (isRestart) {
// Hack: Write config to temporary file at project root
// This invalidates and reloads file contents when using ESM imports or "resolve"
const resolvedConfigPath = (await resolve('tailwind', {
mustExist: false,
cwd: resolvedRoot,
filePath: userConfigPath,
})) as string;
const { dir, base } = path.parse(resolvedConfigPath);
const tempConfigPath = path.join(dir, `.temp.${Date.now()}.${base}`);
await fs.copyFile(resolvedConfigPath, tempConfigPath);
let result: load.Config<Record<any, any>> | undefined;
try {
result = await load('tailwind', {
mustExist: false,
cwd: resolvedRoot,
filePath: tempConfigPath,
});
} catch (err) {
console.error(err);
} finally {
await fs.unlink(tempConfigPath);
}
return {
...result,
filePath: resolvedConfigPath,
};
} else {
return await load('tailwind', {
mustExist: false,
cwd: resolvedRoot,
filePath: userConfigPath,
});
}
}
async function getPostCssConfig(
root: UserConfig['root'],
postcssInlineOptions: CSSOptions['postcss']
) {
let postcssConfigResult;
// Check if postcss config is not inlined
if (!(typeof postcssInlineOptions === 'object' && postcssInlineOptions !== null)) {
let { default: postcssrc } = await import('postcss-load-config');
const searchPath = typeof postcssInlineOptions === 'string' ? postcssInlineOptions : root!;
try {
postcssConfigResult = await postcssrc({}, searchPath);
} catch (e) {
postcssConfigResult = null;
}
}
return postcssConfigResult;
}
async function getViteConfiguration(
tailwindConfig: TailwindConfig,
viteConfig: AstroConfig['vite']
) {
// We need to manually load postcss config files because when inlining the tailwind and autoprefixer plugins,
// that causes vite to ignore postcss config files
const postcssConfigResult = await getPostCssConfig(viteConfig.root, viteConfig.css?.postcss);
const postcssOptions = (postcssConfigResult && postcssConfigResult.options) || {};
const postcssPlugins =
postcssConfigResult && postcssConfigResult.plugins ? postcssConfigResult.plugins.slice() : [];
postcssPlugins.push(tailwindPlugin(tailwindConfig));
postcssPlugins.push(autoprefixerPlugin());
return {
css: {
postcss: {
options: postcssOptions,
plugins: postcssPlugins,
},
},
};
}
type TailwindOptions =
| {
config?: {
/**
* Path to your tailwind config file
* @default 'tailwind.config.js'
*/
path?: string;
/**
* Apply Tailwind's base styles
* Disabling this is useful when further customization of Tailwind styles
* and directives is required. See {@link https://tailwindcss.com/docs/functions-and-directives#tailwind Tailwind's docs}
* for more details on directives and customization.
* @default: true
*/
applyBaseStyles?: boolean;
};
}
| undefined;
export default function tailwindIntegration(options?: TailwindOptions): AstroIntegration {
const applyBaseStyles = options?.config?.applyBaseStyles ?? true;
const customConfigPath = options?.config?.path;
return {
name: '@astrojs/tailwind',
hooks: {
'astro:config:setup': async ({
config,
updateConfig,
injectScript,
addWatchFile,
isRestart,
}) => {
// Inject the Tailwind postcss plugin
const userConfig = await getUserConfig(config.root, customConfigPath, isRestart);
if (customConfigPath && !userConfig?.value) {
throw new Error(
`Could not find a Tailwind config at ${JSON.stringify(
customConfigPath
)}. Does the file exist?`
);
}
if (addWatchFile && userConfig?.filePath) {
addWatchFile(userConfig.filePath);
}
const tailwindConfig =
(userConfig?.value as TailwindConfig) ?? getDefaultTailwindConfig(config.srcDir);
updateConfig({
vite: await getViteConfiguration(tailwindConfig, config.vite),
});
if (applyBaseStyles) {
// Inject the Tailwind base import
injectScript('page-ssr', `import '@astrojs/tailwind/base.css';`);
}
},
},
};
}
|
