More complicated package name substitution for Mac deployment

contrib/macdeploy/macdeployqtplus

@@ -597,6 +597,13 @@ if os.path.exists("dist"):
 
 # ------------------------------------------------
 
+if len(config.volname) == 1:
+    volname = config.volname[0]
+else:
+    volname = app_bundle_name
+
+# ------------------------------------------------
+
 target = os.path.join("dist", "Blackmore-Qt.app")
 
 if verbose >= 2:
@@ -758,7 +765,7 @@ if config.dmg is not None:
     
     if fancy is None:
         try:
-            runHDIUtil("create", dmg_name, srcfolder="dist", format="UDBZ", volname="Blackcoin-Core", ov=True)
+            runHDIUtil("create", dmg_name, srcfolder="dist", format="UDBZ", volname=volname, ov=True)
         except subprocess.CalledProcessError as e:
             sys.exit(e.returncode)
     else:
@@ -773,7 +780,7 @@ if config.dmg is not None:
         if verbose >= 3:
             print("Creating temp image for modification...")
         try:
-            runHDIUtil("create", dmg_name + ".temp", srcfolder="dist", format="UDRW", size=size, volname="Blackcoin-Core", ov=True)
+            runHDIUtil("create", dmg_name + ".temp", srcfolder="dist", format="UDRW", size=size, volname=volname, ov=True)
         except subprocess.CalledProcessError as e:
             sys.exit(e.returncode)
         
@@ -838,7 +845,7 @@ if config.dmg is not None:
                 items_positions.append(itemscript.substitute(params))
 
         params = {
-            "disk" : "Blackcoin-Core",
+            "disk" : volname,
             "window_bounds" : "300,300,800,620",
             "icon_size" : "96",
             "background_commands" : "",