Changes to tools/patch-wasm.mjs. All files

tools/patch-wasm.mjs

new file mode 100644@@ -0,0 +1,44 @@+// Post-processes the wasm-pack output so the WebAssembly binary is embedded in+// wasm.js instead of being read from disk at runtime. Usage:+//+//   node tools/patch-wasm.mjs <pkg-dir>+import fs from "node:fs/promises";+import path from "node:path";++const pkgDir = process.argv[2];+if (!pkgDir) {+	console.error("usage: node tools/patch-wasm.mjs <pkg-dir>");+	process.exit(1);+}++const rawWasmPath = path.join(pkgDir, "wasm_bg.wasm");+const wasmJsPath = path.join(pkgDir, "wasm.js");+const packageJsonPath = path.join(pkgDir, "package.json");++const rawWasmFile = await fs.readFile(rawWasmPath);+const origJsFile = await fs.readFile(wasmJsPath, "utf8");++const base64 = rawWasmFile.toString("base64");+const patchedJsFile = origJsFile+	.replace(`const path = require('path').join(__dirname, 'wasm_bg.wasm');`, "")+	.replace(", fatal: true", "")+	.replace(+		`const bytes = require('fs').readFileSync(path);`,+		`+const { Buffer } = require('node:buffer');+const bytes = Buffer.from('${base64}', 'base64');`,+	);++if (patchedJsFile === origJsFile) {+	console.error(+		"patch-wasm: wasm.js did not match the expected wasm-pack output",+	);+	process.exit(1);+}++await fs.writeFile(wasmJsPath, patchedJsFile);+await fs.unlink(rawWasmPath);++const pkgJson = JSON.parse(await fs.readFile(packageJsonPath, "utf8"));+pkgJson.files = pkgJson.files.filter((file) => file !== "wasm_bg.wasm");+await fs.writeFile(packageJsonPath, `${JSON.stringify(pkgJson, null, 2)}\n`);