Use a fixed serial number based on volume label and commit date when creating floppy disk images.

Author: Lethja

.github/workflows/LuaWatcom.yml

@@ -112,13 +112,17 @@ jobs:
 
     - name: Create 160k 16-bit DOS Floppy Diskette Image
       run: |
-        mformat -C -i dist/Lua160k.ima -v "LUA DOS" -f 160
+        label="LUA DOS"
+        serial="0x$(echo "$label$(git log -1 --format=%ct)" | sha256sum | cut -c1-8)"
+        mformat -C -i dist/Lua160k.ima -v "$label" -f 160 -N $serial
         files=$(find dist/bin/LUA16.EXE demo/core/*.LUA | sort | xargs)
         mcopy -i dist/Lua160k.ima $files ::
 
     - name: Create 1.4M Multi-Platform Floppy Diskette Image
       run: |
-        mformat -C -i dist/LuaMulti.ima -v "LUA MULTIOS" -f 1440
+        label="LUA MULTIOS"
+        serial="0x$(echo "$label$(git log -1 --format=%ct)" | sha256sum | cut -c1-8)"
+        mformat -C -i dist/LuaMulti.ima -v "$label" -f 1440 -N $serial
         files=$(find dist/bin/*.EXE demo/core/*.LUA demo/xtra/*.LUA | sort | xargs)
         mcopy -i dist/LuaMulti.ima $files ::