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#############################################################################
##
#W environment.gi polymaking Package Marc Roeder
##
##
##
##
#Y Copyright (C) 2006 Marc Roeder
#Y
#Y This program is free software; you can redistribute it and/or
#Y modify it under the terms of the GNU General Public License
#Y as published by the Free Software Foundation; either version 2
#Y of the License, or (at your option) any later version.
#Y
#Y This program is distributed in the hope that it will be useful,
#Y but WITHOUT ANY WARRANTY; without even the implied warranty of
#Y MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#Y GNU General Public License for more details.
#Y
#Y You should have received a copy of the GNU General Public License
#Y along with this program; if not, write to the Free Software
#Y Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
##
SetInfoLevel(InfoPolymaking,1);
# give the command which calls polymake. You may need to include the full path
####
if not IsBound(POLYMAKE_COMMAND)
then
POLYMAKE_COMMAND:=Filename( DirectoriesSystemPrograms( ), "polymake" );
fi;
if POLYMAKE_COMMAND=fail
or not IsExecutableFile(POLYMAKE_COMMAND)
then
Info(InfoWarning,1,"polymake command not found. Please set POLYMAKE_COMMAND by hand");
else
MakeReadOnlyGlobal("POLYMAKE_COMMAND");
fi;
InstallMethod(SetPolymakeCommand,[IsString],
function(command)
if not IsExecutableFile(command)
then
Error("polymake command must exist and be executable.");
else
MakeReadWriteGlobal("POLYMAKE_COMMAND");
POLYMAKE_COMMAND:=command;
MakeReadOnlyGlobal("POLYMAKE_COMMAND");
fi;
end);
#
# This directory will hold the files generated for polymake
# It can be changed using "SetPolymakeDataDirectory"
###
if not IsBound(POLYMAKE_DATA_DIR)
then
POLYMAKE_DATA_DIR:=DirectoryTemporary();
fi;
MakeReadOnlyGlobal("POLYMAKE_DATA_DIR");
InstallMethod(SetPolymakeDataDirectory,[IsDirectory],
function(dir)
MakeReadWriteGlobal("POLYMAKE_DATA_DIR");
POLYMAKE_DATA_DIR:=dir;
MakeReadOnlyGlobal("POLYMAKE_DATA_DIR");
end);
####
###
## Handling of last fail reason:
#
InstallValue(POLYMAKE_LAST_FAIL_REASON,"");
InstallMethod(UpdatePolymakeFailReason,[IsString],
function(reason)
MakeReadWriteGlobal("POLYMAKE_LAST_FAIL_REASON");
POLYMAKE_LAST_FAIL_REASON:=reason;
MakeReadOnlyGlobal("POLYMAKE_LAST_FAIL_REASON");
end);
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