| 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 | #include <optional> |
| 13 | |
| 14 | namespace clang { |
| 15 | |
| 16 | using namespace llvm; |
| 17 | |
| 18 | std::optional<sys::fs::file_status> getFileStatus(StringRef Path) { |
| 19 | sys::fs::file_status Status; |
| 20 | std::error_code EC = status(path: Path, result&: Status); |
| 21 | if (EC) |
| 22 | return std::nullopt; |
| 23 | return Status; |
| 24 | } |
| 25 | |
| 26 | std::vector<std::string> scanDirectory(StringRef Path) { |
| 27 | using namespace llvm::sys; |
| 28 | std::vector<std::string> Result; |
| 29 | |
| 30 | std::error_code EC; |
| 31 | for (auto It = fs::directory_iterator(Path, EC), |
| 32 | End = fs::directory_iterator(); |
| 33 | !EC && It != End; It.increment(ec&: EC)) { |
| 34 | auto status = getFileStatus(Path: It->path()); |
| 35 | if (!status) |
| 36 | continue; |
| 37 | Result.emplace_back(args: sys::path::filename(path: It->path())); |
| 38 | } |
| 39 | |
| 40 | return Result; |
| 41 | } |
| 42 | |
| 43 | std::vector<DirectoryWatcher::Event> |
| 44 | getAsFileEvents(const std::vector<std::string> &Scan) { |
| 45 | std::vector<DirectoryWatcher::Event> Events; |
| 46 | Events.reserve(n: Scan.size()); |
| 47 | |
| 48 | for (const auto &File : Scan) { |
| 49 | Events.emplace_back(args: DirectoryWatcher::Event{ |
| 50 | DirectoryWatcher::Event::EventKind::Modified, File}); |
| 51 | } |
| 52 | return Events; |
| 53 | } |
| 54 | |
| 55 | } // namespace clang |
| 56 |