| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "common/libs/utils/files.h" |
| |
| #include <glog/logging.h> |
| |
| #include <array> |
| #include <climits> |
| #include <cstdlib> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| |
| namespace cvd { |
| |
| bool FileHasContent(const std::string& path) { |
| struct stat st; |
| if (stat(path.c_str(), &st) == -1) { |
| return false; |
| } |
| if (st.st_size == 0) { |
| return false; |
| } |
| return true; |
| } |
| |
| bool DirectoryExists(const std::string& path) { |
| struct stat st; |
| if (stat(path.c_str(), &st) == -1) { |
| return false; |
| } |
| if ((st.st_mode & S_IFMT) != S_IFDIR) { |
| return false; |
| } |
| return true; |
| } |
| |
| std::string AbsolutePath(const std::string& path) { |
| if (path.empty()) { |
| return {}; |
| } |
| if (path[0] == '/') { |
| return path; |
| } |
| |
| std::array<char, PATH_MAX> buffer{}; |
| if (!realpath(".", buffer.data())) { |
| LOG(WARNING) << "Could not get real path for current directory \".\"" |
| << ": " << strerror(errno); |
| return {}; |
| } |
| return std::string{buffer.data()} + "/" + path; |
| } |
| |
| } // namespace cvd |