# Shared environment for the in-container scripts.  Sourced, not executed.
#
# Everything expensive or bulky (ccache, the CMake tree, pip's cache, the build
# venv) lives under $CACHE, which the Makefile bind-mounts from outside the
# repo — the root filesystem on this host has little headroom, and these
# survive between runs to keep the inner loop incremental.

CACHE="${CACHE_ROOT:-/cache}"
export CCACHE_DIR="$CACHE/ccache"
export PIP_CACHE_DIR="$CACHE/pip"
export HOME="$CACHE"           # containers run as the host uid; /root is not ours
export CMAKE_C_COMPILER_LAUNCHER=ccache
export CMAKE_CXX_COMPILER_LAUNCHER=ccache
export CMAKE_PREFIX_PATH=/opt/occt
export LD_LIBRARY_PATH=/opt/occt/lib
export SKBUILD_BUILD_DIR="$CACHE/skbuild/{wheel_tag}"

mkdir -p "$CCACHE_DIR" "$PIP_CACHE_DIR"

VENV="$CACHE/venv"
if [ ! -x "$VENV/bin/python" ]; then
    echo "--- creating build venv at $VENV ---"
    /opt/python/cp312-cp312/bin/python -m venv "$VENV"
    "$VENV/bin/pip" install -q --upgrade pip
    "$VENV/bin/pip" install -q build nanobind scikit-build-core pytest
fi
PY="$VENV/bin/python"
export PY VENV CACHE