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.gitattributes

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+*.7z filter=lfs diff=lfs merge=lfs -text
+*.arrow filter=lfs diff=lfs merge=lfs -text
+*.bin filter=lfs diff=lfs merge=lfs -text
+*.bz2 filter=lfs diff=lfs merge=lfs -text
+*.ckpt filter=lfs diff=lfs merge=lfs -text
+*.ftz filter=lfs diff=lfs merge=lfs -text
+*.gz filter=lfs diff=lfs merge=lfs -text
+*.h5 filter=lfs diff=lfs merge=lfs -text
+*.joblib filter=lfs diff=lfs merge=lfs -text
+*.lfs.* filter=lfs diff=lfs merge=lfs -text
+*.mlmodel filter=lfs diff=lfs merge=lfs -text
+*.model filter=lfs diff=lfs merge=lfs -text
+*.msgpack filter=lfs diff=lfs merge=lfs -text
+*.npy filter=lfs diff=lfs merge=lfs -text
+*.npz filter=lfs diff=lfs merge=lfs -text
+*.onnx filter=lfs diff=lfs merge=lfs -text
+*.ot filter=lfs diff=lfs merge=lfs -text
+*.parquet filter=lfs diff=lfs merge=lfs -text
+*.pb filter=lfs diff=lfs merge=lfs -text
+*.pickle filter=lfs diff=lfs merge=lfs -text
+*.pkl filter=lfs diff=lfs merge=lfs -text
+*.pt filter=lfs diff=lfs merge=lfs -text
+*.pth filter=lfs diff=lfs merge=lfs -text
+*.rar filter=lfs diff=lfs merge=lfs -text
+*.safetensors filter=lfs diff=lfs merge=lfs -text
+saved_model/**/* filter=lfs diff=lfs merge=lfs -text
+*.tar.* filter=lfs diff=lfs merge=lfs -text
+*.tar filter=lfs diff=lfs merge=lfs -text
+*.tflite filter=lfs diff=lfs merge=lfs -text
+*.tgz filter=lfs diff=lfs merge=lfs -text
+*.wasm filter=lfs diff=lfs merge=lfs -text
+*.xz filter=lfs diff=lfs merge=lfs -text
+*.zip filter=lfs diff=lfs merge=lfs -text
+*.zst filter=lfs diff=lfs merge=lfs -text
+*tfevents* filter=lfs diff=lfs merge=lfs -text

.gitignore

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+*.exe

.vscode/settings.json

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+{
+  "deno.enable": true,
+  "deno.lint": true,
+  "editor.formatOnSave": true,
+  "editor.defaultFormatter": "denoland.vscode-deno"
+}

Dockerfile

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+FROM denoland/deno:latest
+
+EXPOSE 7860
+
+WORKDIR /app
+
+# Prefer not to run as root.
+USER deno
+
+RUN deno install --entrypoint main.ts
+
+COPY . .
+
+# Compile the main app so that it doesn't need to be compiled each startup/entry.
+RUN deno cache main.ts
+
+# CMD ["serve", "-A", "--port", "7860", "serve.ts"]
+CMD ["run", "-A", "main.ts"]

README.md

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+---
+title: Stockfish Api
+emoji: ♟️
+colorFrom: purple
+colorTo: pink
+sdk: docker
+pinned: false
+short_description: ♟️
+---
+
+Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference

deno.json

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+{
+  "tasks": {
+    "dev": "deno --allow-net --allow-read --allow-env --allow-run --watch main.ts",
+    "serve": "deno serve --allow-net --allow-read --allow-env --watch --port 7860 serve.ts"
+  },
+  "imports": {
+  },
+  "fmt": {
+    "indentWidth": 2,
+    "lineWidth": 160,
+    "proseWrap": "preserve",
+    "semiColons": true,
+    "singleQuote": true,
+    "useTabs": false
+  }
+}

deno.lock

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+{
+  "version": "5",
+  "specifiers": {
+    "jsr:@hono/hono@^4.8.3": "4.8.3"
+  },
+  "jsr": {
+    "@hono/hono@4.8.3": {
+      "integrity": "f17509836610b97e9ec86bce5349387115c35ee72b7b29fd2b7944abe5f843ab"
+    }
+  },
+  "workspace": {
+    "dependencies": [
+      "jsr:@hono/hono@^4.8.3"
+    ]
+  }
+}

main.ts

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+const command = new Deno.Command(Deno.build.os === 'windows' ? './stockfish-windows-x86-64-avx2' : './stockfish-ubuntu-x86-64', {
+  stdin: 'piped',
+  stdout: 'piped',
+});
+
+Deno.serve({ port: 7860 }, (req) => {
+  if (req.headers.get('upgrade') != 'websocket') return new Response(Deno.env.get('SPACE_HOST'));
+
+  const { socket, response } = Deno.upgradeWebSocket(req);
+
+  const stockfish = command.spawn();
+
+  stockfish.status.then((status) => {
+    console.log(`Stockfish process exited with code: ${status.code}`);
+    if (socket.readyState === WebSocket.OPEN) {
+      socket.close(1011, `Stockfish process terminated with exit code ${status.code}`);
+    }
+  });
+
+  const stockfishWriter = stockfish.stdin.getWriter();
+  const stockfishReader = stockfish.stdout.pipeThrough(new TextDecoderStream()).getReader();
+
+  socket.addEventListener('open', async () => {
+    console.log('a client connected!');
+
+    try {
+      while (true) {
+        const { value, done } = await stockfishReader.read();
+        if (done) break;
+        socket.send(value);
+        console.log(value);
+      }
+    } catch (error) {
+      console.error('Error reading from stockfish stdout:', error);
+      if (socket.readyState === WebSocket.OPEN) socket.close();
+    }
+  });
+
+  socket.addEventListener('message', async (event) => {
+    const message = event.data;
+    await stockfishWriter.write(new TextEncoder().encode(message + '\n'));
+  });
+
+  socket.addEventListener('close', () => {
+    console.log('A client disconnected, cleaning up Stockfish process.');
+    try {
+      stockfish.kill();
+    } catch (_) {
+      console.log('Could not kill Stockfish, it likely already exited.');
+    }
+  });
+
+  return response;
+});

serve.ts

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+import fetch from './main.ts';
+
+export default { fetch };