feat(etapa1): baixar e empacotar sidecar sherpa-onnx-offline

scripts/setup-sidecar.mjs

@@ -0,0 +1,167 @@
+// Baixa o release `*-shared` oficial do k2-fsa/sherpa-onnx v1.12.23 e extrai
+// apenas o binário `sherpa-onnx-offline` para `src-tauri/binaries/sherpa-onnx-offline-<triple><ext>`.
+//
+// O shared lib já vem com as DLLs/so de `onnxruntime` no diretório `bin/`. Essas
+// DLLs adicionais são empacotadas como `resources` do Tauri (ver tauri.conf.json)
+// para que o executável as encontre em produção.
+//
+// Uso:
+//   node scripts/setup-sidecar.mjs
+//
+// Variáveis de ambiente opcionais:
+//   SHERPA_ONNX_VERSION  (default: v1.12.23)
+//   SHERPA_ONNX_TRIPLE   (default: detectado via `rustc -vV`)
+
+import { execFileSync } from "node:child_process";
+import {
+  existsSync,
+  mkdirSync,
+  chmodSync,
+  createWriteStream,
+  statSync,
+  renameSync,
+  copyFileSync,
+} from "node:fs";
+import { dirname, join, resolve, sep as pathSep } from "node:path";
+import { pipeline } from "node:stream/promises";
+import { fileURLToPath } from "node:url";
+import process from "node:process";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+const repoRoot = resolve(__dirname, "..");
+const binariesDir = join(repoRoot, "src-tauri", "binaries");
+mkdirSync(binariesDir, { recursive: true });
+
+const DEFAULT_VERSION = "v1.12.23";
+
+const PLATFORM_MAP = [
+  { keys: ["linux", "x64"], asset: "sherpa-onnx-v1.12.23-linux-x64-shared.tar.bz2", triple: "x86_64-unknown-linux-gnu", ext: "" },
+  { keys: ["linux", "arm64"], asset: "sherpa-onnx-v1.12.23-linux-aarch64-shared.tar.bz2", triple: "aarch64-unknown-linux-gnu", ext: "" },
+  { keys: ["darwin", "x64"], asset: "sherpa-onnx-v1.12.23-osx-universal2-shared.tar.bz2", triple: "x86_64-apple-darwin", ext: "" },
+  { keys: ["darwin", "arm64"], asset: "sherpa-onnx-v1.12.23-osx-universal2-shared.tar.bz2", triple: "aarch64-apple-darwin", ext: "" },
+  { keys: ["win32", "x64"], asset: "sherpa-onnx-v1.12.23-win-x64-shared.tar.bz2", triple: "x86_64-pc-windows-msvc", ext: ".exe" },
+];
+
+const RELEASE_BASE = "https://github.com/k2-fsa/sherpa-onnx/releases/download";
+
+function detectTriple() {
+  if (process.env.SHERPA_ONNX_TRIPLE) return process.env.SHERPA_ONNX_TRIPLE;
+  try {
+    const output = execFileSync("rustc", ["-vV"], { encoding: "utf8" });
+    const line = output.split("\n").find((l) => l.startsWith("host:"));
+    if (line) return line.replace("host:", "").trim();
+  } catch {
+    // cai para detecção por platform/arch
+  }
+  const os = process.platform;
+  const archName = process.arch;
+  return PLATFORM_MAP.find(
+    (p) => (p.keys[0] === "win32" ? os === "win32" : p.keys[0] === os) && p.keys[1] === archName,
+  )?.triple;
+}
+
+function pickAsset(triple) {
+  const found = PLATFORM_MAP.find((p) => p.triple === triple);
+  if (!found) {
+    throw new Error(
+      `Não há binário pré-buildado para o target ${triple}. Edite scripts/setup-sidecar.mjs para apontar para um build customizado.`,
+    );
+  }
+  return found;
+}
+
+async function download(url, dest) {
+  const res = await fetch(url);
+  if (!res.ok) {
+    throw new Error(`download falhou: ${res.status} ${res.statusText} em ${url}`);
+  }
+  if (!res.body) {
+    throw new Error(`resposta vazia em ${url}`);
+  }
+  await pipeline(res.body, createWriteStream(dest));
+  return statSync(dest).size;
+}
+
+function extractTarBzip2(archive, cwd) {
+  // `tar` (bsdtar) no Windows não aceita bem paths com backslash nem `D:`
+  // em `-C`. Usamos `cwd` + path relativo para evitar isso.
+  const prefix = cwd.endsWith(pathSep) ? cwd : cwd + pathSep;
+  const relArchive = archive.startsWith(prefix) ? archive.slice(prefix.length) : archive;
+  execFileSync("tar", ["-xjf", relArchive], { stdio: "inherit", cwd });
+}
+
+function moveExtractedBin(extractedBinDir, expectedNames, dest) {
+  for (const name of expectedNames) {
+    const candidate = join(extractedBinDir, name);
+    if (existsSync(candidate)) {
+      renameSync(candidate, dest);
+      return;
+    }
+  }
+  throw new Error(
+    `binário sherpa-onnx-offline não encontrado em ${extractedBinDir}; nomes esperados: ${expectedNames.join(", ")}`,
+  );
+}
+
+function copyExtraSharedLibs(extractedRoot, ext) {
+  // As DLLs adicionais (onnxruntime, providers_shared) precisam acompanhar o
+  // executável em runtime. Copiamos para `src-tauri/binaries/` lado a lado
+  // do binário renomeado; o empacotamento final via tauri.conf.json
+  // resources cuida de movê-las para junto do .exe no instalador.
+  const binDir = join(extractedRoot, "bin");
+  if (!existsSync(binDir)) return;
+  for (const file of ["onnxruntime.dll", "onnxruntime_providers_shared.dll", "cargs.dll"]) {
+    const src = join(binDir, file);
+    if (existsSync(src)) {
+      const destName = ext === ".exe" ? file : file.replace(/\.dll$/, ".so");
+      copyFileSync(src, join(binariesDir, destName));
+    }
+  }
+}
+
+async function main() {
+  const triple = detectTriple();
+  if (!triple) {
+    throw new Error("Não foi possível detectar o target triple do host.");
+  }
+  const asset = pickAsset(triple);
+  const version = process.env.SHERPA_ONNX_VERSION || DEFAULT_VERSION;
+  const assetName = asset.asset.replace(/v1\.12\.23/, version);
+  const versionNoV = version.replace(/^v/, "");
+  const url = `${RELEASE_BASE}/v${versionNoV}/${assetName}`;
+  const finalPath = join(binariesDir, `sherpa-onnx-offline-${triple}${asset.ext}`);
+
+  if (existsSync(finalPath) && statSync(finalPath).size > 1024 * 1024) {
+    console.log(`✓ sidecar já presente em ${finalPath} (${statSync(finalPath).size} bytes)`);
+    return;
+  }
+
+  const archivePath = join(binariesDir, assetName);
+  console.log(`↓ baixando ${url}`);
+  const size = await download(url, archivePath);
+  console.log(`✓ ${size} bytes baixados em ${archivePath}`);
+
+  console.log("↓ extraindo…");
+  extractTarBzip2(archivePath, binariesDir);
+
+  const extractedRoot = join(binariesDir, assetName.replace(/\.tar\.bz2$/, ""));
+  const expected = asset.ext === ".exe" ? ["sherpa-onnx-offline.exe", "sherpa-onnx-offline"] : ["sherpa-onnx-offline"];
+  moveExtractedBin(join(extractedRoot, "bin"), expected, finalPath);
+  copyExtraSharedLibs(extractedRoot, asset.ext);
+
+  if (asset.ext === "") {
+    try {
+      chmodSync(finalPath, 0o755);
+    } catch {
+      // ignore em Windows
+    }
+  }
+
+  console.log(`✓ sidecar pronto em ${finalPath}`);
+}
+
+main().catch((error) => {
+  console.error(`falha: ${error.message}`);
+  process.exitCode = 1;
+});