src/core/configure.cpp

This file powers the currently implemented part of `doctor auto`. It locates the toolkit root, renders a shell fragment that exports `CUDA_HOME` and library paths, skips macOS entirely, and only rewrites the env file when the contents actually differ.

configure.hpp cuda_env.cpp doctor.cpp

Behavior

Env file shapebash

export CUDA_HOME="/path/to/toolkit"
export PATH="$CUDA_HOME/bin:$PATH"
export LD_LIBRARY_PATH="/path/to/toolkit/lib64:${LD_LIBRARY_PATH:-}"

Returns `unsupported` on macOS instead of attempting configuration.
Returns `missing` when no toolkit root can be found.
Writes the file only when the content changes.
Chooses `lib64` when available and falls back to `lib` otherwise.

include/core/configure.hpp

include/core/repo.hpp

Related files

Core contract

include/core/configure.hpp

Declares the result type and function used to write a shell env file for the discovered toolkit.

Core implementation

src/core/cuda_env.cpp

Finds `nvcc`, searches common CUDA install roots, parses `nvcc --version`, and derives the toolkit root directory.

Command implementation

src/commands/doctor.cpp

Extends `check` with repo scanning, optional auto-configuration, auto-fix behavior, and next-step generation.