Support for building with MS Visual Studio 2010.

Brar Piening, reviewed by Craig Ringer.

src/tools/msvc/VSObjectFactory.pm

@@ -0,0 +1,122 @@
+package VSObjectFactory;
+
+#
+# Package that creates Visual Studio wrapper objects for msvc build
+#
+# src/tools/msvc/VSObjectFactory.pm
+#
+
+use Carp;
+use strict;
+use warnings;
+
+use Exporter;
+use Project;
+use Solution;
+use VCBuildProject;
+use MSBuildProject;
+
+our (@ISA, @EXPORT);
+@ISA = qw(Exporter);
+@EXPORT = qw(CreateSolution CreateProject DetermineVisualStudioVersion);
+
+sub CreateSolution
+{
+    my $visualStudioVersion = shift;
+
+    if (!defined($visualStudioVersion))
+    {
+        $visualStudioVersion = DetermineVisualStudioVersion();
+    }
+
+    if ($visualStudioVersion eq '8.00')
+    {
+        return new VS2005Solution(@_);
+    }
+    elsif ($visualStudioVersion eq '9.00')
+    {
+        return new VS2008Solution(@_);
+    }
+    elsif ($visualStudioVersion eq '10.00')
+    {
+        return new VS2010Solution(@_);
+    }
+    else
+    {
+        croak "The requested Visual Studio version is not supported.";
+    }
+}
+
+sub CreateProject
+{
+    my $visualStudioVersion = shift;
+
+    if (!defined($visualStudioVersion))
+    {
+        $visualStudioVersion = DetermineVisualStudioVersion();
+    }
+
+    if ($visualStudioVersion eq '8.00')
+    {
+        return new VC2005Project(@_);
+    }
+    elsif ($visualStudioVersion eq '9.00')
+    {
+        return new VC2008Project(@_);
+    }
+    elsif ($visualStudioVersion eq '10.00')
+    {
+        return new VC2010Project(@_);
+    }
+    else
+    {
+        croak "The requested Visual Studio version is not supported.";
+    }
+}
+
+sub DetermineVisualStudioVersion
+{
+    my $nmakeVersion = shift;
+
+    if (!defined($nmakeVersion))
+    {
+
+        # Determine version of nmake command, to set proper verison of visual studio
+        # we use nmake as it has existed for a long time and still exists in visual studio 2010
+        open(P,"nmake /? 2>&1 |")
+          || croak "Unable to determine Visual Studio version: The nmake command wasn't found.";
+        while(<P>)
+        {
+            chomp;
+            if (/(\d+)\.(\d+)\.\d+(\.\d+)?$/)
+            {
+                return _GetVisualStudioVersion($1, $2);
+            }
+        }
+        close(P);
+    }
+    elsif($nmakeVersion =~ /(\d+)\.(\d+)\.\d+(\.\d+)?$/)
+    {
+        return _GetVisualStudioVersion($1, $2);
+    }
+    croak "Unable to determine Visual Studio version: The nmake version could not be determined.";
+}
+
+sub _GetVisualStudioVersion
+{
+    my($major, $minor) = @_;
+    if ($major > 10)
+    {
+        carp
+"The determined version of Visual Studio is newer than the latest supported version. Returning the latest supported version instead.";
+        return '10.00';
+    }
+    elsif ($major < 6)
+    {
+        croak
+"Unable to determine Visual Studio version: Visual Studio versions before 6.0 aren't supported.";
+    }
+    return "$major.$minor";
+}
+
+1;