Set version of Netgen globally (for archives), interface to get version

libsrc/core/CMakeLists.txt

@@ -11,6 +11,7 @@ add_library(ngcore SHARED
   table.cpp
   taskmanager.cpp
   utils.cpp
+  version.cpp
   )
 
 # Pybind11 2.3 Issue https://github.com/pybind/pybind11/issues/1604

libsrc/core/archive.cpp

@@ -1,6 +1,6 @@
 
 #include "archive.hpp"
-#include <netgen_version.hpp>
+#include "version.hpp"
 
 #ifndef WIN32
 #include <cxxabi.h>
@@ -8,18 +8,6 @@
 
 namespace ngcore
 {
-  // clang-tidy should ignore this static object
-  static std::map<std::string, VersionInfo> library_versions;  // NOLINT
-  std::map<std::string, VersionInfo>& Archive :: GetLibraryVersions()
-  {
-    return library_versions;
-  }
-  const VersionInfo& GetLibraryVersion(const std::string& library)
-  { return library_versions[library]; }
-
-  void SetLibraryVersion(const std::string& library, const VersionInfo& version)
-  { library_versions[library] = version; }
-
   // clang-tidy should ignore this static object
   static std::unique_ptr<std::map<std::string, detail::ClassArchiveInfo>> type_register;  // NOLINT
   const detail::ClassArchiveInfo& Archive :: GetArchiveRegister(const std::string& classname)
@@ -45,10 +33,4 @@ namespace ngcore
                                    std::make_unique<std::map<std::string, detail::ClassArchiveInfo>>();
     return type_register->count(classname) != 0;
   }
-
-
-  static bool dummy = [](){
-    SetLibraryVersion("netgen", NETGEN_VERSION);
-    return true;
-  }();
 } // namespace ngcore

libsrc/core/archive.hpp

@@ -30,9 +30,6 @@ namespace pybind11
 
 namespace ngcore
 {
-  // Libraries using this archive can store their version here to implement backwards compatibility
-  NGCORE_API const VersionInfo& GetLibraryVersion(const std::string& library);
-  NGCORE_API void SetLibraryVersion(const std::string& library, const VersionInfo& version);
 
   class NGCORE_API Archive;
 
@@ -570,9 +567,6 @@ namespace ngcore
 
     virtual void FlushBuffer() {}
 
-  protected:
-    static std::map<std::string, VersionInfo>& GetLibraryVersions();
-
   private:
     template<typename T, typename ... Bases>
     friend class RegisterClassForArchive;

libsrc/core/python_ngcore.hpp

@@ -230,7 +230,6 @@ namespace ngcore
     using ARCHIVE::stream;
     using ARCHIVE::version_map;
     using ARCHIVE::logger;
-    using ARCHIVE::GetLibraryVersions;
   public:
     PyArchive(const pybind11::object& alst = pybind11::none()) :
       ARCHIVE(std::make_shared<std::stringstream>()),
@@ -275,10 +274,11 @@ namespace ngcore
 
     pybind11::list WriteOut()
     {
+      auto version_runtime = GetLibraryVersions();
       FlushBuffer();
       lst.append(pybind11::bytes(std::static_pointer_cast<std::stringstream>(stream)->str()));
       stream = std::make_shared<std::stringstream>();
-      *this & GetLibraryVersions();
+      *this & version_runtime;
       FlushBuffer();
       lst.append(pybind11::bytes(std::static_pointer_cast<std::stringstream>(stream)->str()));
       stream = std::make_shared<std::stringstream>();

libsrc/core/version.cpp

@@ -0,0 +1,29 @@
+#include <map>
+
+#include <netgen_version.hpp>
+#include "exception.hpp"
+#include "version.hpp"
+
+namespace ngcore
+{
+  // clang-tidy should ignore this static object
+  static std::map<std::string, VersionInfo> library_versions;  // NOLINT
+
+  const VersionInfo& GetLibraryVersion(const std::string& library)
+  { return library_versions[library]; }
+
+  const std::map<std::string, VersionInfo>& GetLibraryVersions()
+  { return library_versions; }
+
+  void SetLibraryVersion(const std::string& library, const VersionInfo& version)
+  {
+    if(library_versions.count(library) && (library_versions[library] != version))
+      throw Exception("Failed to set library version for " + library + " to " + version.to_string() + ": version already set to " + library_versions[library].to_string());
+    library_versions[library] = version;
+  }
+
+  static bool dummy = [](){
+    SetLibraryVersion("netgen", NETGEN_VERSION);
+    return true;
+  }();
+} // namespace ngcore

libsrc/core/version.hpp

@@ -80,6 +80,10 @@ namespace ngcore
       return mayor_ == other.mayor_ && minor_ == other.minor_ && release == other.release
         && patch == other.patch;
     }
+    bool operator !=(const VersionInfo& other) const
+    {
+      return !(*this==other);
+    }
     bool operator >(const VersionInfo& other) const { return other < (*this); }
     bool operator <=(const VersionInfo& other) const { return !((*this) > other); }
     bool operator >=(const VersionInfo& other) const { return !((*this) < other); }
@@ -89,6 +93,10 @@ namespace ngcore
   {
     return ost << version.to_string();
   }
+
+  NGCORE_API const VersionInfo& GetLibraryVersion(const std::string& library);
+  NGCORE_API const std::map<std::string, VersionInfo>& GetLibraryVersions();
+  NGCORE_API void SetLibraryVersion(const std::string& library, const VersionInfo& version);
 } // namespace ngcore
 
 #endif // NETGEN_CORE_VERSION_HPP