chore: generate sdk into packages/sdk

packages/sdk/scripts/utils/postprocess-files.cjs

@@ -0,0 +1,94 @@
+// @ts-check
+const fs = require('fs');
+const path = require('path');
+
+const distDir =
+  process.env['DIST_PATH'] ?
+    path.resolve(process.env['DIST_PATH'])
+  : path.resolve(__dirname, '..', '..', 'dist');
+
+async function* walk(dir) {
+  for await (const d of await fs.promises.opendir(dir)) {
+    const entry = path.join(dir, d.name);
+    if (d.isDirectory()) yield* walk(entry);
+    else if (d.isFile()) yield entry;
+  }
+}
+
+async function postprocess() {
+  for await (const file of walk(distDir)) {
+    if (!/(\.d)?[cm]?ts$/.test(file)) continue;
+
+    const code = await fs.promises.readFile(file, 'utf8');
+
+    // strip out lib="dom", types="node", and types="react" references; these
+    // are needed at build time, but would pollute the user's TS environment
+    const transformed = code.replace(
+      /^ *\/\/\/ *<reference +(lib="dom"|types="(node|react)").*?\n/gm,
+      // replace with same number of characters to avoid breaking source maps
+      (match) => ' '.repeat(match.length - 1) + '\n',
+    );
+
+    if (transformed !== code) {
+      console.error(`wrote ${path.relative(process.cwd(), file)}`);
+      await fs.promises.writeFile(file, transformed, 'utf8');
+    }
+  }
+
+  const newExports = {
+    '.': {
+      require: {
+        types: './index.d.ts',
+        default: './index.js',
+      },
+      types: './index.d.mts',
+      default: './index.mjs',
+    },
+  };
+
+  for (const entry of await fs.promises.readdir(distDir, { withFileTypes: true })) {
+    if (entry.isDirectory() && entry.name !== 'src' && entry.name !== 'internal' && entry.name !== 'bin') {
+      const subpath = './' + entry.name;
+      newExports[subpath + '/*.mjs'] = {
+        default: subpath + '/*.mjs',
+      };
+      newExports[subpath + '/*.js'] = {
+        default: subpath + '/*.js',
+      };
+      newExports[subpath + '/*'] = {
+        import: subpath + '/*.mjs',
+        require: subpath + '/*.js',
+      };
+    } else if (entry.isFile() && /\.[cm]?js$/.test(entry.name)) {
+      const { name, ext } = path.parse(entry.name);
+      const subpathWithoutExt = './' + name;
+      const subpath = './' + entry.name;
+      newExports[subpathWithoutExt] ||= { import: undefined, require: undefined };
+      const isModule = ext[1] === 'm';
+      if (isModule) {
+        newExports[subpathWithoutExt].import = subpath;
+      } else {
+        newExports[subpathWithoutExt].require = subpath;
+      }
+      newExports[subpath] = {
+        default: subpath,
+      };
+    }
+  }
+  await fs.promises.writeFile(
+    'dist/package.json',
+    JSON.stringify(
+      Object.assign(
+        /** @type {Record<String, unknown>} */ (
+          JSON.parse(await fs.promises.readFile('dist/package.json', 'utf-8'))
+        ),
+        {
+          exports: newExports,
+        },
+      ),
+      null,
+      2,
+    ),
+  );
+}
+postprocess();