1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <errno.h> 20 #include <libgen.h> 21 #include <sys/stat.h> 22 #include <unistd.h> 23 24 #include <string> 25 #include <unordered_set> 26 #include <vector> 27 28 #include <llvm/ADT/StringRef.h> 29 30 std::string getWorkingDir(); 31 std::vector<std::string> collectHeaders(const std::string& directory, 32 const std::unordered_set<std::string>& ignored_directories); 33 34 static inline std::string dirname(const std::string& path) { 35 std::unique_ptr<char, decltype(&free)> path_copy(strdup(path.c_str()), free); 36 return dirname(path_copy.get()); 37 } 38 39 static inline bool is_directory(const std::string& path) { 40 struct stat st; 41 if (stat(path.c_str(), &st) == 0 && S_ISDIR(st.st_mode)) { 42 return true; 43 } 44 return false; 45 } 46 47 static inline bool mkdirs(const std::string& path) { 48 if (is_directory(path)) { 49 return true; 50 } 51 52 std::string parent = dirname(path); 53 if (parent == path) { 54 return false; 55 } 56 57 if (!mkdirs(parent)) { 58 return false; 59 } 60 61 if (mkdir(path.c_str(), 0700) != 0) { 62 if (errno != EEXIST) { 63 return false; 64 } 65 return is_directory(path); 66 } 67 68 return true; 69 } 70 71 static inline std::string to_string(const char* c) { 72 return c; 73 } 74 75 static inline const std::string& to_string(const std::string& str) { 76 return str; 77 } 78 79 template <typename Collection> 80 static inline std::string Join(Collection c, const std::string& delimiter = ", ") { 81 std::string result; 82 for (const auto& item : c) { 83 using namespace std; 84 result.append(to_string(item)); 85 result.append(delimiter); 86 } 87 if (!result.empty()) { 88 result.resize(result.length() - delimiter.length()); 89 } 90 return result; 91 } 92 93 llvm::StringRef StripPrefix(llvm::StringRef string, llvm::StringRef prefix); 94
