1 files changed, 74 insertions, 0 deletions
diff --git a/compiler/nnc/support/CLOptionChecker.cpp b/compiler/nnc/support/CLOptionChecker.cpp
new file mode 100644
index 000000000..1ec1e876a
--- /dev/null
+++ b/compiler/nnc/support/CLOptionChecker.cpp
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * 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.
+ */
+
+#include "support/CommandLine.h"
+
+#include <dirent.h>
+#include <cstring>
+
+namespace nnc
+{
+namespace cli
+{
+
+void checkInFile(const Option<std::string> &in_file)
+{
+  if (in_file.empty())
+    throw BadOption("Input file name should not be empty");
+
+  auto f = fopen(in_file.c_str(), "rb");
+  if (!f)
+    throw BadOption("Cannot open file <" + in_file + ">");
+  fclose(f);
+} // checkInFile
+
+void checkOutFile(const Option<std::string> &out_file)
+{
+  if (out_file.empty())
+    throw BadOption("Output file name should not be empty");
+
+  /// @todo: if file already exists need to check accessibility
+
+} // checkOutFile
+
+void checkInDir(const Option<std::string> &dir)
+{
+  auto stream = opendir(dir.c_str());
+
+  if (stream == nullptr)
+    throw BadOption(std::string("Could not open directory: ") + std::strerror(errno) + ".");
+
+  closedir(stream);
+} // checkInDir
+
+void checkOutDir(const Option<std::string> &dir)
+{
+  auto stream = opendir(dir.c_str());
+
+  if (stream == nullptr)
+  {
+    // Do not consider the missing directory an error.
+    if (errno == ENOENT)
+      return;
+
+    throw BadOption(std::string("Could not open directory: ") + std::strerror(errno) + ".");
+  }
+
+  closedir(stream);
+} // checkOutDir
+
+} // namespace cli
+} // namespace nnc