disk_capacity: python optional

Author: scivision

+stdlib/disk_capacity.m

@@ -11,7 +11,10 @@
 f = uint64(0);
 if ~stdlib.exists(d), return, end
 
-if stdlib.has_dotnet()
+if stdlib.has_python()
+  di = py.shutil.disk_usage(d);
+  f = uint64(di.total);
+elseif stdlib.has_dotnet()
   f = System.IO.DriveInfo(stdlib.absolute(d)).TotalSize();
   % https://learn.microsoft.com/en-us/dotnet/api/system.io.driveinfo.totalsize
 elseif stdlib.has_java()

buildfile.m

@@ -263,14 +263,14 @@ function build_exe(context)
 srcs = {
 "src/remove.cpp", ...
 ["src/normalize.cpp", normal], ...
-"src/disk_capacity.cpp", ...
 "src/set_permissions.cpp", ...
 };
 
 if ~stdlib.has_python() || build_all
 srcs{end+1} = "src/is_char_device.cpp";
 srcs{end+1} = ["src/is_admin.cpp", "src/admin_fs.cpp"];
 srcs{end+1} = "src/disk_available.cpp";
+srcs{end+1} = "src/disk_capacity.cpp";
 end
 
 if (isMATLABReleaseOlderThan("R2024b") && ~stdlib.has_dotnet()) || build_all