scripts/bootstrap_venv.sh

#!/usr/bin/env bash
set -euo pipefail
ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
VENV="$ROOT/.venv"
REQ="$ROOT/requirements.txt"
DEV_REQ="$ROOT/requirements-dev.txt"
mkdir -p "$ROOT/artifacts" "$ROOT/models"
if [[ ! -x "$VENV/bin/python" ]]; then
  if command -v uv >/dev/null 2>&1; then
    uv venv "$VENV"
  else
    if ! python3 -m venv "$VENV"; then
      if command -v apt-get >/dev/null 2>&1 && command -v sudo >/dev/null 2>&1; then
        sudo apt-get update
        sudo apt-get install -y python3-venv
        python3 -m venv "$VENV"
      else
        echo "python3 -m venv failed; install python3-venv or use uv" >&2
        exit 1
      fi
    fi
  fi
fi
# Ensure pip exists in the venv (some environments/uv builds omit it by default).
if ! "$VENV/bin/python" -c "import pip" >/dev/null 2>&1; then
  "$VENV/bin/python" -m ensurepip --upgrade
fi

if [[ "${HERMES_OFFLINE:-0}" == "1" ]]; then
  echo "HERMES_OFFLINE=1: created venv but skipping dependency installs."
  exit 0
fi

"$VENV/bin/python" -m pip install --upgrade pip setuptools wheel
"$VENV/bin/python" -m pip install -r "$REQ" -r "$DEV_REQ"
"$VENV/bin/python" -m pip freeze > "$ROOT/requirements.venv.txt"