llvm-project/clang/tools/clang-check/ClangCheck.cpp

//===- tools/clang-check/ClangCheck.cpp - Clang check tool ----------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//  This file implements a clang-check tool that runs the
//  clang::SyntaxOnlyAction over a number of translation units.
//
//  This tool uses the Clang Tooling infrastructure, see
//    http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html
//  for details on setting it up with LLVM source tree.
//
//===----------------------------------------------------------------------===//

#include "llvm/Support/CommandLine.h"
#include "clang/Frontend/FrontendActions.h"
#include "clang/Tooling/CommandLineClangTool.h"
#include "clang/Tooling/Tooling.h"

using namespace clang::tooling;
using namespace llvm;

static const char *MoreHelpText =
    "\tFor example, to run clang-check on all files in a subtree of the\n"
    "\tsource tree, use:\n"
    "\n"
    "\t  find path/in/subtree -name '*.cpp'|xargs clang-check\n"
    "\n"
    "\tor using a specific build path:\n"
    "\n"
    "\t  find path/in/subtree -name '*.cpp'|xargs clang-check -p build/path\n"
    "\n"
    "\tNote, that path/in/subtree and current directory should follow the\n"
    "\trules described above.\n"
    "\n";

int main(int argc, const char **argv) {
  CommandLineClangTool Tool;
  cl::extrahelp MoreHelp(MoreHelpText);
  Tool.initialize(argc, argv);
  return Tool.run(newFrontendActionFactory<clang::SyntaxOnlyAction>());
}