From d267c1a77de20be82116acc574ac85bcfb29d377 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Atgeirr=20Fl=C3=B8=20Rasmussen?= <atgeirr@sintef.no>
Date: Thu, 6 Apr 2017 12:14:06 +0200
Subject: [PATCH] Create ensureDirectoryExists() free function.

---
 CMakeLists_files.cmake                   |  2 ++
 opm/simulators/ensureDirectoryExists.cpp | 45 ++++++++++++++++++++++++
 opm/simulators/ensureDirectoryExists.hpp | 40 +++++++++++++++++++++
 3 files changed, 87 insertions(+)
 create mode 100644 opm/simulators/ensureDirectoryExists.cpp
 create mode 100644 opm/simulators/ensureDirectoryExists.hpp

diff --git a/CMakeLists_files.cmake b/CMakeLists_files.cmake
index 45b8d3414d..2392fa88da 100644
--- a/CMakeLists_files.cmake
+++ b/CMakeLists_files.cmake
@@ -63,6 +63,7 @@ list (APPEND MAIN_SOURCE_FILES
   opm/polymer/TransportSolverTwophasePolymer.cpp
   opm/polymer/fullyimplicit/FullyImplicitCompressiblePolymerSolver.cpp
   opm/polymer/fullyimplicit/PolymerPropsAd.cpp
+  opm/simulators/ensureDirectoryExists.cpp
   opm/simulators/SimulatorCompressibleTwophase.cpp
   opm/simulators/SimulatorIncompTwophase.cpp
   opm/simulators/WellSwitchingLogger.cpp
@@ -258,6 +259,7 @@ list (APPEND PUBLIC_HEADER_FILES
   opm/polymer/fullyimplicit/SimulatorFullyImplicitBlackoilPolymer.hpp
   opm/polymer/fullyimplicit/SimulatorFullyImplicitBlackoilPolymer_impl.hpp
   opm/polymer/fullyimplicit/WellStateFullyImplicitBlackoilPolymer.hpp
+  opm/simulators/ensureDirectoryExists.hpp
   opm/simulators/ParallelFileMerger.hpp
   opm/simulators/SimulatorCompressibleTwophase.hpp
   opm/simulators/SimulatorIncompTwophase.hpp
diff --git a/opm/simulators/ensureDirectoryExists.cpp b/opm/simulators/ensureDirectoryExists.cpp
new file mode 100644
index 0000000000..0e89917281
--- /dev/null
+++ b/opm/simulators/ensureDirectoryExists.cpp
@@ -0,0 +1,45 @@
+/*
+  Copyright 2017 SINTEF Digital, Mathematics and Cybernetics.
+  Copyright 2017 Statoil ASA.
+
+  This file is part of the Open Porous Media project (OPM).
+
+  OPM is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  OPM is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with OPM.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <opm/simulators/ensureDirectoryExists.hpp>
+#include <opm/common/ErrorMacros.hpp>
+
+namespace Opm
+{
+
+    /// The directory pointed to by 'dirpath' will be created if it
+    /// does not already exist. Will throw an exception if this cannot
+    /// be done.
+    void ensureDirectoryExists(const boost::filesystem::path& dirpath)
+    {
+        if (dirpath != ".") { // Do not try to create the current directory.
+            if (!is_directory(dirpath)) {
+                try {
+                    create_directories(dirpath);
+                }
+                catch (...) {
+                    OPM_THROW(std::runtime_error, "Creating directories failed: " << dirpath);
+                }
+            }
+        }
+    }
+
+
+} // namespace Opm
diff --git a/opm/simulators/ensureDirectoryExists.hpp b/opm/simulators/ensureDirectoryExists.hpp
new file mode 100644
index 0000000000..5b22b961f0
--- /dev/null
+++ b/opm/simulators/ensureDirectoryExists.hpp
@@ -0,0 +1,40 @@
+/*
+  Copyright 2017 SINTEF Digital, Mathematics and Cybernetics.
+  Copyright 2017 Statoil ASA.
+
+  This file is part of the Open Porous Media project (OPM).
+
+  OPM is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  OPM is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with OPM.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef OPM_ENSUREDIRECTORYEXISTS_HEADER_INCLUDED
+#define OPM_ENSUREDIRECTORYEXISTS_HEADER_INCLUDED
+
+#include <boost/filesystem.hpp>
+
+namespace Opm
+{
+
+    /// The directory pointed to by 'dirpath' will be created if it
+    /// does not already exist. Will throw an exception if this cannot
+    /// be done.
+    ///
+    /// Note that std::string can be passed to this functions, as they
+    /// can be implicitly converted to boost::filesystem::path objects.
+    void ensureDirectoryExists(const boost::filesystem::path& dirpath);
+
+
+} // namespace Opm
+
+#endif // OPM_ENSUREDIRECTORYEXISTS_HEADER_INCLUDED