Function npm_exec_fallback_for_command

crates/nodeup/src/command_diagnostics.rs:247–260

(
    runtime_root: Option<&Path>,
    command: &str,
    direct_executable_exists: bool,
)

}

fn npm_exec_fallback_for_command(
    runtime_root: Option<&Path>,
    command: &str,
    direct_executable_exists: bool,
) -> Option<PathBuf> {
    if direct_executable_exists || !matches!(command, "yarn" | "pnpm") {
        return None;
    }

    let npm_path =
        selected_existing_or_primary(&runtime_executable_candidate_paths(runtime_root?, "npm"));

    runtime_executable_is_runnable(&npm_path).then_some(npm_path)
}

fn availability_mode(
    direct_executable_runnable: bool,