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|
import load, { resolve } from '@proload/core';
import type { AstroIntegration } from 'astro';
import autoprefixerPlugin from 'autoprefixer';
import fs from 'fs/promises';
import path from 'path';
import tailwindPlugin, { Config as TailwindConfig } from 'tailwindcss';
import resolveConfig from 'tailwindcss/resolveConfig.js';
import { fileURLToPath } from 'url';
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);
const result = await load('tailwind', {
mustExist: false,
cwd: resolvedRoot,
filePath: tempConfigPath,
});
try {
await fs.unlink(tempConfigPath);
} catch {
/** file already removed */
}
return {
...result,
filePath: resolvedConfigPath,
};
} else {
return await load('tailwind', {
mustExist: false,
cwd: resolvedRoot,
filePath: userConfigPath,
});
}
}
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, 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 (userConfig?.filePath) {
addWatchFile(userConfig.filePath);
}
const tailwindConfig: TailwindConfig =
(userConfig?.value as TailwindConfig) ?? getDefaultTailwindConfig(config.srcDir);
config.style.postcss.plugins.push(tailwindPlugin(tailwindConfig));
config.style.postcss.plugins.push(autoprefixerPlugin);
if (applyBaseStyles) {
// Inject the Tailwind base import
injectScript('page-ssr', `import '@astrojs/tailwind/base.css';`);
}
},
},
};
}
|
