| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. |
| // http://code.google.com/p/protobuf/ |
| // |
| // 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. |
| |
| // Author: kenton@google.com (Kenton Varda) |
| // emulates google3/file/base/file.cc |
| |
| #include <google/protobuf/testing/file.h> |
| #include <stdio.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #ifdef _MSC_VER |
| #define WIN32_LEAN_AND_MEAN // yeah, right |
| #include <windows.h> // Find*File(). :( |
| #include <io.h> |
| #include <direct.h> |
| #else |
| #include <dirent.h> |
| #include <unistd.h> |
| #endif |
| #include <errno.h> |
| |
| namespace google { |
| namespace protobuf { |
| |
| #ifdef _WIN32 |
| #define mkdir(name, mode) mkdir(name) |
| // Windows doesn't have symbolic links. |
| #define lstat stat |
| #ifndef F_OK |
| #define F_OK 00 // not defined by MSVC for whatever reason |
| #endif |
| #endif |
| |
| bool File::Exists(const string& name) { |
| return access(name.c_str(), F_OK) == 0; |
| } |
| |
| bool File::ReadFileToString(const string& name, string* output) { |
| char buffer[1024]; |
| FILE* file = fopen(name.c_str(), "rb"); |
| if (file == NULL) return false; |
| |
| while (true) { |
| size_t n = fread(buffer, 1, sizeof(buffer), file); |
| if (n <= 0) break; |
| output->append(buffer, n); |
| } |
| |
| int error = ferror(file); |
| if (fclose(file) != 0) return false; |
| return error == 0; |
| } |
| |
| void File::ReadFileToStringOrDie(const string& name, string* output) { |
| GOOGLE_CHECK(ReadFileToString(name, output)) << "Could not read: " << name; |
| } |
| |
| void File::WriteStringToFileOrDie(const string& contents, const string& name) { |
| FILE* file = fopen(name.c_str(), "wb"); |
| GOOGLE_CHECK(file != NULL); |
| GOOGLE_CHECK_EQ(fwrite(contents.data(), 1, contents.size(), file), |
| contents.size()); |
| GOOGLE_CHECK(fclose(file) == 0); |
| } |
| |
| bool File::CreateDir(const string& name, int mode) { |
| return mkdir(name.c_str(), mode) == 0; |
| } |
| |
| bool File::RecursivelyCreateDir(const string& path, int mode) { |
| if (CreateDir(path, mode)) return true; |
| |
| // Try creating the parent. |
| string::size_type slashpos = path.find_first_of('/'); |
| if (slashpos == string::npos) { |
| // No parent given. |
| return false; |
| } |
| |
| return RecursivelyCreateDir(path.substr(0, slashpos), mode) && |
| CreateDir(path, mode); |
| } |
| |
| void File::DeleteRecursively(const string& name, |
| void* dummy1, void* dummy2) { |
| // We don't care too much about error checking here since this is only used |
| // in tests to delete temporary directories that are under /tmp anyway. |
| |
| #ifdef _MSC_VER |
| // This interface is so weird. |
| WIN32_FIND_DATA find_data; |
| HANDLE find_handle = FindFirstFile((name + "/*").c_str(), &find_data); |
| if (find_handle == INVALID_HANDLE_VALUE) { |
| // Just delete it, whatever it is. |
| DeleteFile(name.c_str()); |
| RemoveDirectory(name.c_str()); |
| return; |
| } |
| |
| do { |
| string entry_name = find_data.cFileName; |
| if (entry_name != "." && entry_name != "..") { |
| string path = name + "/" + entry_name; |
| if (find_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { |
| DeleteRecursively(path, NULL, NULL); |
| RemoveDirectory(path.c_str()); |
| } else { |
| DeleteFile(path.c_str()); |
| } |
| } |
| } while(FindNextFile(find_handle, &find_data)); |
| FindClose(find_handle); |
| |
| RemoveDirectory(name.c_str()); |
| #else |
| // Use opendir()! Yay! |
| // lstat = Don't follow symbolic links. |
| struct stat stats; |
| if (lstat(name.c_str(), &stats) != 0) return; |
| |
| if (S_ISDIR(stats.st_mode)) { |
| DIR* dir = opendir(name.c_str()); |
| if (dir != NULL) { |
| while (true) { |
| struct dirent* entry = readdir(dir); |
| if (entry == NULL) break; |
| string entry_name = entry->d_name; |
| if (entry_name != "." && entry_name != "..") { |
| DeleteRecursively(name + "/" + entry_name, NULL, NULL); |
| } |
| } |
| } |
| |
| closedir(dir); |
| rmdir(name.c_str()); |
| |
| } else if (S_ISREG(stats.st_mode)) { |
| remove(name.c_str()); |
| } |
| #endif |
| } |
| |
| } // namespace protobuf |
| } // namespace google |