Function _prepare_workspace

demo/app.py:218–253

Create isolated per-run workspace and copy needed code/assets into it.

(logs)

        pass

def _prepare_workspace(logs):
    """Create isolated per-run workspace and copy needed code/assets into it."""
    run_id = datetime.datetime.now().strftime("%Y%m%d-%H%M%S") + "-" + uuid.uuid4().hex[:8]
    work_dir = RUNS_DIR / run_id
    work_dir.mkdir(parents=True, exist_ok=True)

    # Per-run log & zip path
    log_path = work_dir / "run.log"
    zip_path = work_dir / "output.zip"

    logs.append(f"🧩 New workspace: {work_dir.relative_to(ROOT)} (run_id={run_id})")

    # Copy code/assets that do file IO so they are run-local (avoid shared writes)
    # Keep copies as cheap as possible (symlinks=True when supported)
    needed_dirs = ["posterbuilder", "Paper2Poster"]
    for d in needed_dirs:
        src = ROOT / d
        if src.exists():
            _copytree(src, work_dir / d, symlinks=True)
            logs.append(f"   ↪ copied {d}/ → runs/{run_id}/{d}/ (symlink where possible)")

    # template/ optional
    tmpl = ROOT / "template"
    if tmpl.exists():
        _copytree(tmpl, work_dir / "template", symlinks=True)
        logs.append("   ↪ copied template/")

    # pipeline.py must live inside workspace so that ROOT_DIR=work_dir
    _safe_copy(ROOT / "pipeline.py", work_dir / "pipeline.py")

    # Create standard IO dirs in workspace
    (work_dir / "input" / "pdf").mkdir(parents=True, exist_ok=True)
    (work_dir / "input" / "logo").mkdir(parents=True, exist_ok=True)
    (work_dir / "posterbuilder" / "latex_proj").mkdir(parents=True, exist_ok=True)

    return run_id, work_dir, log_path, zip_path

# ---------------------
# Helpers for new features (post-processing)