Files
carbon-lang/toolchain/driver/driver_main.cpp
T
Jon Ross-Perkins c7057eff89 Improve install_paths handling for relative paths. (#4331)
Because install_paths is not presently validated, and it's resolved
after the `SetWorkingDirForBazel` call, if a relative path is used with
bazel then it would fail silently. This starts making the driver share
install path errors, and starts changing how `//toolchain` launches
`carbon`.

Note the implementation is still brittle and will break with symlinks.
That's something I plan to address as part of busyboxing.
2024-09-23 22:26:53 +00:00

39 lines
1.2 KiB
C++

// 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 <cstdlib>
#include "common/bazel_working_dir.h"
#include "common/exe_path.h"
#include "common/init_llvm.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "toolchain/driver/driver.h"
#include "toolchain/install/install_paths.h"
auto main(int argc, char** argv) -> int {
Carbon::InitLLVM init_llvm(argc, argv);
if (argc < 1) {
return EXIT_FAILURE;
}
// Resolve paths before calling SetWorkingDirForBazel.
std::string exe_path = Carbon::FindExecutablePath(argv[0]);
const auto install_paths = Carbon::InstallPaths::MakeExeRelative(exe_path);
if (install_paths.error()) {
llvm::errs() << "error: " << *install_paths.error();
return EXIT_FAILURE;
}
Carbon::SetWorkingDirForBazel();
llvm::SmallVector<llvm::StringRef> args(argv + 1, argv + argc);
auto fs = llvm::vfs::getRealFileSystem();
Carbon::Driver driver(*fs, &install_paths, llvm::outs(), llvm::errs());
bool success = driver.RunCommand(args).success;
return success ? EXIT_SUCCESS : EXIT_FAILURE;
}