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import type { AstroConfig } from './@types/astro';
import { loadConfiguration, startServer as startSnowpackServer } from 'snowpack';
import { promises as fsPromises } from 'fs';
import { relative as pathRelative } from 'path';
const { mkdir, readdir, stat, writeFile } = fsPromises;
async function* allPages(root: URL): AsyncGenerator<URL, void, unknown> {
for (const filename of await readdir(root)) {
const fullpath = new URL(filename, root);
const info = await stat(fullpath);
if (info.isDirectory()) {
yield* allPages(new URL(fullpath + '/'));
} else {
yield fullpath;
}
}
}
export default async function (astroConfig: AstroConfig) {
const { projectRoot, hmxRoot } = astroConfig;
const pageRoot = new URL('./pages/', hmxRoot);
const dist = new URL(astroConfig.dist + '/', projectRoot);
const configPath = new URL('./snowpack.config.js', projectRoot).pathname;
const config = await loadConfiguration(
{
root: projectRoot.pathname,
devOptions: { open: 'none', output: 'stream' },
},
configPath
);
const snowpack = await startSnowpackServer({
config,
lockfile: null, // TODO should this be required?
});
const runtime = snowpack.getServerRuntime();
for await (const filepath of allPages(pageRoot)) {
const rel = pathRelative(hmxRoot.pathname, filepath.pathname); // pages/index.hmx
const pagePath = `/_hmx/${rel.replace(/\.(hmx|md)/, '.js')}`;
try {
const outPath = new URL('./' + rel.replace(/\.(hmx|md)/, '.html'), dist);
const outFolder = new URL('./', outPath);
const mod = await runtime.importModule(pagePath);
const html = await mod.exports.default({});
await mkdir(outFolder, { recursive: true });
await writeFile(outPath, html, 'utf-8');
} catch (err) {
console.error('Unable to generate page', rel);
}
}
await snowpack.shutdown();
process.exit(0);
}
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