Background alias is invalid when dmg is mounted to non-standard path

[djalmaaraujo]

I am trying to regenerate the background, but it's getting blank. The folder is inside the directory, I tried to change the name to see if the problem is related to cache, but after a few tries, now it is always blank.

Folder: https://www.dropbox.com/s/o32jy2tlav9nmy8/Screenshot%202014-08-18%2009.30.19.png
JSON: https://gist.github.com/66497ed36ba52f54b355
DMG generated: https://www.dropbox.com/s/rq1dgng2q3mxkm6/Screenshot%202014-08-18%2009.31.27.png

[LinusU]

Hi,

Took me some time to figure this out but here is what happens. For some reason appdmg was stopped in the middle of everything and it exited without cleanup. Most likely someone pressed ctrl + c in the terminal.

That made the mount point /Volumes/Test Title being taken but without showing it in the Finder sidebar.

The next time appdmg tries to make an image, it gets temporarily mounted onto /Volumes/Test Title 1. This shoudn't be a problem, but for some reason the link to the background fails when this happens.

So, two things should be fixed:

• Catch SIGINT and make sure to run the cleanup steps before quitting
• Figure out why background fails on non-predictable name, and fix it

[djalmaaraujo]

@LinusU This is great. I will try to figure out some way to fix and submit a pr.

[Layoric]

I am also getting the same behavior described by @djalmaaraujo after a crash of the process I can no longer use the same title in the json config without getting a blank background. If I change the title, the background image works in the .dmg.

Even after npm uninstall -g appdmg and reinstall, problem still persists. A reboot of the machine seems to clear whatever is persisting that is creating this issue.

[AlicanC]

I have had the same problem today. I think this is how it happened to me:

• Start DMG creation.
• Temp DMG gets mounted to "/Volumes/Test Title/".
• Background is set to "/Volumes/Test Title/.background/background.png".
• Creation complete.
• Mount the DMG to test it.
• Start another DMG creation.
• Temp DMG gets mounted to "/Volumes/Test Title 1/".
• Background is set to "/Volumes/Test Title 1/.background/background.png".
• Creation complete.
• Mount the DMG to test it.
• Weird stuff happens.

Do you have to give the background an absolute path? Couldn't it just be ".background/background.png" instead of "/Volumes/Test Title/.background/background.png"? Maybe that would solve the problem.