1 //===- DirectoryScanner.cpp - Utility functions for DirectoryWatcher ------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "DirectoryScanner.h" 10 11 #include "llvm/Support/Path.h" 12 13 namespace clang { 14 15 using namespace llvm; 16 17 Optional<sys::fs::file_status> getFileStatus(StringRef Path) { 18 sys::fs::file_status Status; 19 std::error_code EC = status(Path, Status); 20 if (EC) 21 return None; 22 return Status; 23 } 24 25 std::vector<std::string> scanDirectory(StringRef Path) { 26 using namespace llvm::sys; 27 std::vector<std::string> Result; 28 29 std::error_code EC; 30 for (auto It = fs::directory_iterator(Path, EC), 31 End = fs::directory_iterator(); 32 !EC && It != End; It.increment(EC)) { 33 auto status = getFileStatus(It->path()); 34 if (!status.hasValue()) 35 continue; 36 Result.emplace_back(sys::path::filename(It->path())); 37 } 38 39 return Result; 40 } 41 42 std::vector<DirectoryWatcher::Event> 43 getAsFileEvents(const std::vector<std::string> &Scan) { 44 std::vector<DirectoryWatcher::Event> Events; 45 Events.reserve(Scan.size()); 46 47 for (const auto &File : Scan) { 48 Events.emplace_back(DirectoryWatcher::Event{ 49 DirectoryWatcher::Event::EventKind::Modified, File}); 50 } 51 return Events; 52 } 53 54 } // namespace clang 55