1 files changed, 59 insertions, 0 deletions
diff --git a/src/generate.ts b/src/generate.ts
new file mode 100644
index 000000000..de7f76b25
--- /dev/null
+++ b/src/generate.ts
@@ -0,0 +1,59 @@
+import type { MagicConfig } from './@types/magicthing';
+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(magicConfig: MagicConfig) {
+  const { projectRoot, hmxRoot } = magicConfig;
+  const pageRoot = new URL('./pages/', hmxRoot);
+  const dist = new URL(magicConfig.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);
+}
+\ No newline at end of file