macos builds will succeed even if there is a volume with the target n…

…ame already mounted

src/main/resources/de/itemis/mps/gradle/mpsdmg.pl

@@ -4,17 +4,18 @@
 use Mac::Memory qw( );
 use Mac::Files qw( NewAliasMinimal );
 
-$name = $ARGV[0];
-$bg_pic = $ARGV[1];
+$volumeName = $ARGV[0];
+$name = $ARGV[1];
+$bg_pic = $ARGV[2];
 
-&writeDSDBEntries("/Volumes/$name/.DS_Store",
+&writeDSDBEntries("/Volumes/$volumeName/.DS_Store",
     &makeEntries(".background", Iloc_xy => [ 560, 170 ]),
     &makeEntries(".DS_Store", Iloc_xy => [ 610, 170 ]),
     &makeEntries(".fseventsd", Iloc_xy => [ 660, 170 ]),
     &makeEntries(".Trashes", Iloc_xy => [ 710, 170 ]),
     &makeEntries(" ", Iloc_xy => [ 335, 120 ]),
     &makeEntries(".",
-        BKGD_alias => NewAliasMinimal("/Volumes/$name/.background/$bg_pic"),
+        BKGD_alias => NewAliasMinimal("/Volumes/$volumeName/.background/$bg_pic"),
         ICVO => 1,
         fwi0_flds => [ 100, 400, 396, 855, "icnv", 0, 0 ],
         fwsw => 170,

src/main/resources/de/itemis/mps/gradle/mpsdmg.sh

@@ -44,16 +44,18 @@ hdiutil create -srcfolder "$INPUT_DIR" -volname "$VOLNAME" -anyowners -nospotlig
 
 # mount this image
 echo "Mounting unpacked r/w disk image..."
-device=$(hdiutil attach -readwrite -noverify -noautoopen "$temp_dmg" | egrep '^/dev/' | sed 1q | awk '{print $1}')
-echo "Mounted as $device."
+DEVICE_DETAILS=$(hdiutil attach -readwrite -noverify -noautoopen "$temp_dmg")
+DEVICE_NAME=$(echo $DEVICE_DETAILS | egrep '^/dev/' | sed 1q | awk '{print $1}')
+TMP_VOL_PATH=$(echo $DEVICE_DETAILS | egrep -o '/Volumes/.*$')
+echo "Mounted as $DEVICE_NAME under $TMP_VOL_PATH."
 sleep 10
 
 # set properties
 echo "Updating disk image styles..."
-rm "/Volumes/$VOLNAME/DSStorePlaceHolder"
-arch -32 perl5.18 mpsdmg.pl "$VOLNAME" $(basename "$BG_PIC")
+rm "$TMP_VOL_PATH/DSStorePlaceHolder"
+arch -32 perl5.18 mpsdmg.pl "$(basename "$TMP_VOL_PATH")" "$VOLNAME" $(basename "$BG_PIC")
 sync;sync;sync
-hdiutil detach "$device"
+hdiutil detach "$DEVICE_NAME"
 
 echo "Compressing r/w disk image to $OUTPUT_FILE..."
 rm -f "$OUTPUT_FILE"