Better mod loading error handling

1 files changed, 61 insertions, 0 deletions

diff --git a/src/mods.h b/src/mods.h
new file mode 100644
index 000000000..a6beb24f2
--- /dev/null
+++ b/src/mods.h
@@ -0,0 +1,61 @@
+/*
+Minetest-c55
+Copyright (C) 2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program 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 2 of the License, or
+(at your option) any later version.
+
+This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "irrlichttypes.h"
+#include <set>
+#include <string>
+#include <exception>
+
+class ModError : public std::exception
+{
+public:
+	ModError(const std::string &s)
+	{
+		m_s = "ModError: ";
+		m_s += s;
+	}
+	virtual ~ModError() throw()
+	{}
+	virtual const char * what() const throw()
+	{
+		return m_s.c_str();
+	}
+	std::string m_s;
+};
+
+struct ModSpec
+{
+	std::string name;
+	std::string path;
+	std::set<std::string> depends;
+	std::set<std::string> unsatisfied_depends;
+
+	ModSpec(const std::string &name_="", const std::string path_="",
+			const std::set<std::string> &depends_=std::set<std::string>()):
+		name(name_),
+		path(path_),
+		depends(depends_),
+		unsatisfied_depends(depends_)
+	{}
+};
+
+// Get a dependency-sorted list of ModSpecs
+core::list<ModSpec> getMods(core::list<std::string> &modspaths)
+		throw(ModError);
+