add options to not generate mipmaps and dont delete if input=output

Scripts/dds.py

@@ -10,8 +10,12 @@ def flip(file, output):
     result = subprocess.run([convertcmd, '-flip', file, output], capture_output=True)
     result.check_returncode()
     
-def nvcompress(format, file, output):
+def nvcompress(format, file, output, mips = True):
-    result = subprocess.run([compresscmd, format, file, output], capture_output=True)
+    args = [format]
+    if not mips:
+        args.append('-nomips')
+    
+    result = subprocess.run([compresscmd] + args + [file, output], capture_output=True)
     result.check_returncode()
     
 def nvdecompress(file, output):

Scripts/ddscompress.py

@@ -10,6 +10,7 @@ import dds
 parser = argparse.ArgumentParser(description="Converts any number of textures to dds format. automatically chooses dxt1 or dxt5 depending on if the source image has anything in its alpha channel.")
 parser.add_argument('files', type=str, nargs='*', help = "input texture files")
 parser.add_argument('--format', type=str, choices=['auto', 'DXT1', 'DXT5'], default = "auto", help = "output texture format (default: %(default)s)")
+parser.add_argument('--nomips', '-n', dest='mips', action='store_false', help = "Do not generate mipmaps")
 parser.add_argument('--convertcmd', type=str, metavar='CMD', default="convert", help="name of imagemagick's convert tool (default: %(default)s)")
 parser.add_argument('--compresscmd', type=str, metavar='CMD', default="nvcompress", help="name of the nvidia dds compress tool (default: %(default)s)")
 
@@ -26,11 +27,12 @@ with tempfile.TemporaryDirectory() as tempDir:
         output = os.path.splitext(file)[0] + ".dds"
          
         dds.flip(file, tmpOutput)
-             
+         
         if (args.format == "auto" and dds.alpha(file) < 255) or args.format == "DXT5":      
             format = "-bc3"
         else:
             format = "-bc1"
 
-        dds.nvcompress(format, tmpOutput, output)
+        dds.nvcompress(format, tmpOutput, output, args.mips)
-        os.remove(file)
+        if os.path.basename(file) != os.path.basename(output):
+            os.remove(file)

Scripts/ddsdecompress.py

@@ -20,4 +20,5 @@ for argv in args.files:
     output = os.path.splitext(file)[0] + f".tga"
 
     dds.nvdecompress(file, output)
-    os.remove(file)
+    if os.path.basename(file) != os.path.basename(output):
+        os.remove(file)