Add CefScopedTempDir and file utility functions for unit tests (issue #1632)

libcef/common/file_util_impl.cc

@@ -0,0 +1,86 @@
+// Copyright 2016 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that can
+// be found in the LICENSE file.
+
+#include "include/cef_file_util.h"
+
+#include "include/cef_task.h"
+
+#include "base/files/file_path.h"
+#include "base/files/file_util.h"
+#include "base/logging.h"
+#include "third_party/zlib/google/zip.h"
+
+namespace {
+
+bool AllowFileIO() {
+  if (CefCurrentlyOn(TID_UI) || CefCurrentlyOn(TID_IO)) {
+    NOTREACHED() << "file IO is not allowed on the current thread";
+    return false;
+  }
+  return true;
+}
+
+}  // namespace
+
+bool CefCreateDirectory(const CefString& full_path) {
+  if (!AllowFileIO())
+    return false;
+  return base::CreateDirectory(full_path);
+}
+
+bool CefGetTempDirectory(CefString& temp_dir) {
+  if (!AllowFileIO())
+    return false;
+  base::FilePath result;
+  if (base::GetTempDir(&result)) {
+    temp_dir = result.value();
+    return true;
+  }
+  return false;
+}
+
+bool CefCreateNewTempDirectory(const CefString& prefix,
+                               CefString& new_temp_path) {
+  if (!AllowFileIO())
+    return false;
+  base::FilePath result;
+  if (base::CreateNewTempDirectory(prefix, &result)) {
+    new_temp_path = result.value();
+    return true;
+  }
+  return false;
+}
+
+bool CefCreateTempDirectoryInDirectory(const CefString& base_dir,
+                                       const CefString& prefix,
+                                       CefString& new_dir) {
+  if (!AllowFileIO())
+    return false;
+  base::FilePath result;
+  if (base::CreateTemporaryDirInDir(base_dir, prefix, &result)) {
+    new_dir = result.value();
+    return true;
+  }
+  return false;
+}
+
+bool CefDirectoryExists(const CefString& path) {
+  if (!AllowFileIO())
+    return false;
+  return base::DirectoryExists(path);
+}
+
+bool CefDeleteFile(const CefString& path, bool recursive) {
+  if (!AllowFileIO())
+    return false;
+  return base::DeleteFile(path, recursive);
+}
+
+bool CefZipDirectory(const CefString& src_dir,
+                     const CefString& dest_file,
+                     bool include_hidden_files) {
+  if (!AllowFileIO())
+    return false;
+  return zip::Zip(src_dir, dest_file, include_hidden_files);
+}