carbon-lang/installers/local/carbon.cpp

// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

#include "explorer/main.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"

namespace fs = llvm::sys::fs;
namespace path = llvm::sys::path;

auto main(int argc, char** argv) -> int {
  llvm::StringRef bin = path::filename(argv[0]);
  if (bin == "carbon-explorer") {
    static int static_for_main_addr;
    std::string exe = fs::getMainExecutable(
        argv[0], static_cast<void*>(&static_for_main_addr));
    llvm::StringRef install_path = path::parent_path(exe);
    llvm::SmallString<256> prelude_file(install_path);
    path::append(prelude_file, "data", "prelude.carbon");
    return Carbon::ExplorerMain(prelude_file, argc, argv);
  } else {
    fprintf(stderr, "Unrecognized Carbon binary requested: %s", argv[0]);
    return 1;
  }
}