Add MSVC stl filesystem implementation

Closes #199

1 files changed, 30 insertions, 3 deletions

diff --git a/src/lib/utils/filesystem.cpp b/src/lib/utils/filesystem.cpp
index 0a31dec7a..950d4d4e2 100644
--- a/src/lib/utils/filesystem.cpp
+++ b/src/lib/utils/filesystem.cpp
@@ -1,5 +1,6 @@
 /*
 * (C) 2015 Jack Lloyd
+* (C) 2015 Simon Warta (Kullo GmbH)
 *
 * Botan is released under the Simplified BSD License (see license.txt)
 */
@@ -8,7 +9,9 @@
 #include <botan/internal/filesystem.h>
 #include <algorithm>
 
-#if defined(BOTAN_HAS_BOOST_FILESYSTEM)
+#if defined(BOTAN_TARGET_OS_HAS_STL_FILESYSTEM_MSVC) && defined(BOTAN_BUILD_COMPILER_IS_MSVC)
+  #include <filesystem>
+#elif defined(BOTAN_HAS_BOOST_FILESYSTEM)
   #include <boost/filesystem.hpp>
 #elif defined(BOTAN_TARGET_OS_HAS_READDIR)
   #include <sys/types.h>
@@ -23,7 +26,29 @@ namespace Botan {
 
 namespace {
 
-#if defined(BOTAN_HAS_BOOST_FILESYSTEM)
+#if defined(BOTAN_TARGET_OS_HAS_STL_FILESYSTEM_MSVC) && defined(BOTAN_BUILD_COMPILER_IS_MSVC)
+std::vector<std::string> impl_stl_filesystem(const std::string& dir)
+   {
+   using namespace std::tr2::sys;
+
+   std::vector<std::string> out;
+
+   path p(dir);
+
+   if (is_directory(p))
+      {
+      for (recursive_directory_iterator itr(p), end; itr != end; ++itr)
+         {
+         if (is_regular_file(itr->path()))
+            {
+            out.push_back(itr->path().string());
+            }
+         }
+      }
+
+   return out;
+   }
+#elif defined(BOTAN_HAS_BOOST_FILESYSTEM)
 std::vector<std::string> impl_boost_filesystem(const std::string& dir_path)
 {
    namespace fs = boost::filesystem;
@@ -86,7 +111,9 @@ std::vector<std::string> get_files_recursive(const std::string& dir)
    {
    std::vector<std::string> files;
 
-#if defined(BOTAN_HAS_BOOST_FILESYSTEM)
+#if defined(BOTAN_TARGET_OS_HAS_STL_FILESYSTEM_MSVC) && defined(BOTAN_BUILD_COMPILER_IS_MSVC)
+   files = impl_stl_filesystem(dir);
+#elif defined(BOTAN_HAS_BOOST_FILESYSTEM)
    files = impl_boost_filesystem(dir);
 #elif defined(BOTAN_TARGET_OS_HAS_READDIR)
    files = impl_readdir(dir);