1 // Copyright 2015 Google Inc. All rights reserved 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef FIND_H_ 16 #define FIND_H_ 17 18 #include <memory> 19 #include <string> 20 #include <unordered_set> 21 #include <vector> 22 23 #include "string_piece.h" 24 25 using namespace std; 26 27 class FindCond; 28 29 enum struct FindCommandType { 30 FIND, 31 FINDLEAVES, 32 LS, 33 }; 34 35 struct FindCommand { 36 FindCommand(); 37 ~FindCommand(); 38 39 bool Parse(const string& cmd); 40 41 FindCommandType type; 42 string chdir; 43 string testdir; 44 vector<StringPiece> finddirs; 45 bool follows_symlinks; 46 unique_ptr<FindCond> print_cond; 47 unique_ptr<FindCond> prune_cond; 48 int depth; 49 int mindepth; 50 bool redirect_to_devnull; 51 52 unique_ptr<unordered_set<string>> read_dirs; 53 54 private: 55 FindCommand(const FindCommand&) = delete; 56 void operator=(FindCommand) = delete; 57 }; 58 59 class FindEmulator { 60 public: 61 virtual ~FindEmulator() = default; 62 63 virtual bool HandleFind(const string& cmd, const FindCommand& fc, 64 string* out) = 0; 65 66 static FindEmulator* Get(); 67 68 protected: 69 FindEmulator() = default; 70 }; 71 72 void InitFindEmulator(); 73 74 #endif // FIND_H_ 75
