nrnivmodl-cmake.in

#!/usr/bin/env bash

# =============================================================================
# Simple wrapper for CMake that builds mechanisms from mod files
# =============================================================================

set -eu

# Where the output files will be placed
bindir="$(uname -m)"

# The name of the current program
program_name="$(basename "${0}")"

# Where the `*.cmake` files are located
NRN_CMAKE_PREFIX_PATH_DEFAULT="$(readlink -f "$(dirname "${0}")/../lib/cmake/")"
if [ -n "${CMAKE_PREFIX_PATH:-}" ]; then
    CMAKE_PREFIX_PATH="${CMAKE_PREFIX_PATH}:${NRN_CMAKE_PREFIX_PATH_DEFAULT}"
else
    CMAKE_PREFIX_PATH="${NRN_CMAKE_PREFIX_PATH_DEFAULT}"
fi
export CMAKE_PREFIX_PATH

# On MacOS we need to set the deployment target to be equal to the one of NEURON
if command -v xcrun >& /dev/null; then
    @NRN_OSX_BUILD_TRUE@export SDKROOT="$(xcrun --sdk macosx --show-sdk-path)"
    @NRN_OSX_BUILD_TRUE@export MACOSX_DEPLOYMENT_TARGET="@CMAKE_OSX_DEPLOYMENT_TARGET@"
    if [ -z "${MACOSX_DEPLOYMENT_TARGET}" ]; then
        unset MACOSX_DEPLOYMENT_TARGET
    fi
fi

# We use the CMakeLists.txt from the NEURON installation directory to not have
# to deal with any pre-existing CMakeLists.txt in the current directory
srcdir="${NRN_CMAKE_PREFIX_PATH_DEFAULT}/neuron/nrnivmodl/"

# In case of no files, default to using the files in the current dir
if [ $# -lt 1 ]; then
    set -- ./*.mod
# In case of a single input, check if it's a directory; if it is, collect all mod files in it
elif [ $# -eq 1 ] && [ -d "${1}" ]; then
    printf "[%s] Collecting mod files under %s\n" "${program_name}" "$(readlink -f "${1}")"
    set -- "${1}"/*.mod
fi

# After collecting the mod files, check each mod file actually exists
for mod_file in "$@"; do
    if [ ! -e "${mod_file}" ]; then
        printf "[%s] ERROR: Mod file %s does not exist!\n" "${program_name}" "${mod_file}" >&2
        exit 4
    fi
done

# Convert all mod file paths to absolute paths because the source dir is in the NEURON install
args=()
for f in "$@"; do
  resolved=$(readlink -f "$f") || exit 1
  args+=("$resolved")
done
set -- "${args[@]}"

# TODO what if the mod filenames contain semicolons?
modfiles=$(IFS=";"; echo "$*")

# Configure the mod files
cmake \
    -S "${srcdir}" \
    -B "${bindir}" \
    -DNRNIVMODL_MOD_FILES="${modfiles}" \
    -DNRNIVMODL_NEURON=@NRNIVMODL_NEURON@ \
    -DNRNIVMODL_CORENEURON=@NRNIVMODL_CORENEURON@

# Actually build them
cmake --build "${bindir}"