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https://github.com/carbon-language/carbon-lang.git
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50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include <cstdlib>
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#include "common/bazel_working_dir.h"
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#include "common/init_llvm.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Program.h"
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#include "toolchain/driver/driver.h"
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auto main(int argc, char** argv) -> int {
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Carbon::InitLLVM init_llvm(argc, argv);
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if (argc < 1) {
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return EXIT_FAILURE;
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}
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// Find the executable without resolving symlinks. Do a PATH lookup if argv[0]
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// isn't a valid path.
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llvm::SmallString<128> exe_path(argv[0]);
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if (!llvm::sys::fs::exists(exe_path)) {
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if (llvm::ErrorOr<std::string> path =
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llvm::sys::findProgramByName(exe_path)) {
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exe_path = *path;
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}
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}
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Carbon::SetWorkingDirForBazel();
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// Printing to stderr should flush stdout. This is most noticeable when stderr
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// is piped to stdout.
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llvm::errs().tie(&llvm::outs());
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llvm::SmallVector<llvm::StringRef> args(argv + 1, argv + argc);
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auto fs = llvm::vfs::getRealFileSystem();
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// Construct the data directory relative to the executable location.
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llvm::SmallString<256> data_dir(llvm::sys::path::parent_path(exe_path));
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llvm::sys::path::append(data_dir, llvm::sys::path::Style::posix,
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"carbon.runfiles/_main/");
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Carbon::Driver driver(*fs, data_dir, llvm::outs(), llvm::errs());
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bool success = driver.RunCommand(args).success;
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return success ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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