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import { AstroIntegration } from 'astro';
function getRenderer() {
return {
name: '@astrojs/preact',
clientEntrypoint: '@astrojs/preact/client.js',
serverEntrypoint: '@astrojs/preact/server.js',
jsxImportSource: 'preact',
jsxTransformOptions: async () => {
const {
default: { default: jsx },
// @ts-expect-error types not found
} = await import('@babel/plugin-transform-react-jsx');
return {
plugins: [jsx({}, { runtime: 'automatic', importSource: 'preact' })],
};
},
};
}
function getViteConfiguration() {
return {
optimizeDeps: {
include: [
'@astrojs/preact/client.js',
'preact',
'preact/jsx-runtime',
'preact-render-to-string',
],
exclude: ['@astrojs/preact/server.js'],
},
ssr: {
external: ['preact-render-to-string'],
},
};
}
export default function (): AstroIntegration {
return {
name: '@astrojs/preact',
hooks: {
'astro:config:setup': ({ addRenderer, updateConfig }) => {
addRenderer(getRenderer());
updateConfig({
vite: getViteConfiguration(),
});
},
},
};
}
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