.net filesystem_type: 9x faster

.net disk_capacity: faster

.net disk_avail: faster

Author: scivision

+stdlib/+dotnet/disk_available.m

@@ -1,14 +1,17 @@
 %% DOTNET.DISK_AVAILABLE find the disk space available to the user
 
-function f = disk_available(file)
-arguments
-  file (1,1) string
-end
+function i = disk_available(file)
 
-f = uint64([]);
+try
+  i = System.IO.DriveInfo(file).AvailableFreeSpace();
+% https://learn.microsoft.com/en-us/dotnet/api/system.io.driveinfo.availablefreespace
+catch e
+  switch class(e.ExceptionObject)
+    case {'System.IO.DriveNotFoundException', 'System.ArgumentException'}, i = [];
+    otherwise, rethrow(e)
+  end
+end
 
-if ~stdlib.exists(file), return, end
+i = uint64(i);
 
-f = uint64(System.IO.DriveInfo(stdlib.absolute(file)).AvailableFreeSpace());
-% https://learn.microsoft.com/en-us/dotnet/api/system.io.driveinfo.availablefreespace
 end

+stdlib/+dotnet/disk_capacity.m

@@ -1,15 +1,17 @@
 %% DOTNET.DISK_CAPACITY find the overall disk capacity visible to user
 
-function f = disk_capacity(file)
-arguments
-  file (1,1) string
-end
-
-f = uint64([]);
-
-if ~stdlib.exists(file), return, end
+function i = disk_capacity(file)
 
-f = uint64(System.IO.DriveInfo(stdlib.absolute(file)).TotalSize());
+try
+  i = System.IO.DriveInfo(file).TotalSize();
 % https://learn.microsoft.com/en-us/dotnet/api/system.io.driveinfo.totalsize
+catch e
+  switch class(e.ExceptionObject)
+    case {'System.IO.DriveNotFoundException', 'System.ArgumentException'}, i = [];
+    otherwise, rethrow(e)
+  end
+end
+
+i = uint64(i);
 
 end

+stdlib/+dotnet/filesystem_type.m

@@ -1,14 +1,16 @@
 %% DOTNET.FILESYSTEM_TYPE type of the partition e.g. NTFS, ext4, ...
 
 function t = filesystem_type(file)
-arguments
-  file (1,1) string
-end
 
-if stdlib.exists(file)
-  t = char(System.IO.DriveInfo(stdlib.absolute(file)).DriveFormat);
-  % https://learn.microsoft.com/en-us/dotnet/api/system.io.driveinfo.driveformat
-else
+% https://learn.microsoft.com/en-us/dotnet/api/system.io.driveinfo.driveformat
+
+try
+  t = char(System.IO.DriveInfo(file).DriveFormat);
+catch e
+  switch class(e.ExceptionObject)
+    case {'System.IO.DriveNotFoundException', 'System.ArgumentException'}
+    otherwise, rethrow(e)
+  end
   t = '';
 end
 

+stdlib/+dotnet/is_removable.m

@@ -3,16 +3,16 @@
 % Ref: https://learn.microsoft.com/en-us/dotnet/api/system.io.drivetype
 
 function y = is_removable(filepath)
-arguments
-  filepath (1,1) string
-end
 
-if stdlib.exists(filepath)
-  fmt = System.IO.DriveInfo(stdlib.absolute(filepath)).DriveType;
+try
+  fmt = System.IO.DriveInfo(filepath).DriveType;
   y = any(isequal(fmt, {System.IO.DriveType.Removable, ...
                         System.IO.DriveType.CDRom}));
-else
-  y = false;
+catch e
+  switch class(e.ExceptionObject)
+    case {'System.IO.DriveNotFoundException', 'System.ArgumentException'}, y = false;
+    otherwise, rethrow(e)
+  end
 end
 
 end