# LiveCodeBench Portable Venv Bundle

This directory contains a portable transfer bundle for the LiveCodeBench Python environment.

## Files

- `LiveCodeBench-venv-portable-20260407.tar.zst`
  Portable environment archive.
- `LiveCodeBench-venv-portable-20260407.tar.zst.sha256`
  SHA256 checksum file for archive verification.
- `restore_livecodebench_venv.sh`
  Restore the environment on the target server and rewrite internal absolute paths.
- `send_livecodebench_venv_to_server.sh`
  Copy the bundle to a remote server with `scp`.

## Recommended Workflow

Run from this directory on the source server:

```bash
cd ~/LiveCodeBench-venv-portable-bundle
bash ./send_livecodebench_venv_to_server.sh user@your-server ~ /data/repos/LiveCodeBench/.venv
```

Then restore on the target server:

```bash
ssh user@your-server 'bash ~/restore_livecodebench_venv.sh ~/LiveCodeBench-venv-portable-20260407.tar.zst /data/repos/LiveCodeBench/.venv'
```

## Manual Workflow

If you prefer to copy files yourself:

```bash
scp LiveCodeBench-venv-portable-20260407.tar.zst \
    LiveCodeBench-venv-portable-20260407.tar.zst.sha256 \
    restore_livecodebench_venv.sh \
    user@your-server:~
```

Restore manually on the target server:

```bash
bash ~/restore_livecodebench_venv.sh \
  ~/LiveCodeBench-venv-portable-20260407.tar.zst \
  /data/repos/LiveCodeBench/.venv
```

## What The Restore Script Does

- Verifies the archive checksum when the `.sha256` file is present.
- Extracts the environment.
- Rewrites shebangs and `pyvenv.cfg` for the target path.
- Uses the bundled `.python-home` runtime so the venv does not depend on the original source machine's `uv` Python location.

## Notes

- The target server should have a compatible Linux userspace.
- Native wheels may still require compatible CPU architecture, `glibc`, `libstdc++`, and CUDA driver/runtime versions.
- The default target path is `/data/repos/LiveCodeBench/.venv`, but you can restore to a different path by passing a different second argument to `restore_livecodebench_venv.sh`.

## Checksum

Current archive SHA256:

```text
da52c6e9200a7f14b8fba8d733b0b168f4cdf42c69f328986405b0a53fe5a0a0
```