Squashed 'third_party/protobuf/' content from commit e35e248
Change-Id: I6cbe123d09fe50fdcad0e51466665daeee7433c7
git-subtree-dir: third_party/protobuf
git-subtree-split: e35e24800fb8d694bdeea5fd63dc7d1b14d68723
diff --git a/src/google/protobuf/testing/file.cc b/src/google/protobuf/testing/file.cc
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+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc. All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// 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;
+}
+
+bool File::WriteStringToFile(const string& contents, const string& name) {
+ FILE* file = fopen(name.c_str(), "wb");
+ if (file == NULL) {
+ GOOGLE_LOG(ERROR) << "fopen(" << name << ", \"wb\"): " << strerror(errno);
+ return false;
+ }
+
+ if (fwrite(contents.data(), 1, contents.size(), file) != contents.size()) {
+ GOOGLE_LOG(ERROR) << "fwrite(" << name << "): " << strerror(errno);
+ return false;
+ }
+
+ if (fclose(file) != 0) {
+ return false;
+ }
+ return true;
+}
+
+void File::WriteStringToFileOrDie(const string& contents, const string& name) {
+ FILE* file = fopen(name.c_str(), "wb");
+ GOOGLE_CHECK(file != NULL)
+ << "fopen(" << name << ", \"wb\"): " << strerror(errno);
+ GOOGLE_CHECK_EQ(fwrite(contents.data(), 1, contents.size(), file),
+ contents.size())
+ << "fwrite(" << name << "): " << strerror(errno);
+ GOOGLE_CHECK(fclose(file) == 0)
+ << "fclose(" << name << "): " << strerror(errno);
+}
+
+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;
+
+ if (Exists(path)) return false;
+
+ // Try creating the parent.
+ string::size_type slashpos = path.find_last_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) {
+ if (name.empty()) return;
+
+ // 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
+}
+
+bool File::ChangeWorkingDirectory(const string& new_working_directory) {
+ return chdir(new_working_directory.c_str()) == 0;
+}
+
+} // namespace protobuf
+} // namespace google