nix-cmake

#!/usr/bin/env python3

# let's say you have a C++ project in Nix that you want to work on with CLion so that the Nix dependencies are available
# put this script in your project directory
# then, in Settings -> Build, Execution, Deployment -> Toolchains set CMake to this script
# if you need any extra nix-shell arguments, add them to the invocation at the bottom

import os
import sys
import shlex


def is_test_invocation(args):
    # This function checks if the current invocation is for testing.
    # You might check for specific CTest arguments or a pattern that matches your testing setup.
    # For simplicity, this example looks for a '--test' flag which you might need to adjust
    return '--test' in args or 'ctest' in args


scriptDir = os.path.dirname(os.path.realpath(__file__))

args = list(map(shlex.quote, sys.argv[1:]))

# Use the cmakeFlags set by Nix if not running --build or tests
if "--build" not in args and not is_test_invocation(args):
    args.insert(0, "$cmakeFlags")

cwd = os.getcwd()
cmd = 'cd ' + cwd + ' && cmake ' + ' '.join(args)

if is_test_invocation(args):
    # Modify cmd for test execution
    # Here you might need to adjust the command to work with CTest specifically.
    # This could involve using a different command or altering the existing one to suit test execution.
    cmd = 'cd ' + cwd + ' && ctest ' + ' '.join(args)  # Adjust this line as necessary

os.chdir(scriptDir)
os.execvp("nix", [
    "nix", "develop", "--command", "bash", "-c", cmd
])