My app has an update mechanism that downloads the update, moves the
currently running bundle to the trash, installs the update where the
running copy used to be, and then quits and launches the updated copy.
If the user has "Keep in Dock" selected for the app, the result is two
identical icons in the Dock, one for the old version (not running) and
one for the new (running). Of course the new version is in the
location formerly occupied by the old one, so these two icons both
reference the same location. But the Dock does not recognize that
these two icons should be one until the app is quit and relaunched
from the Dock.
I'm wondering if there is a way to force the Dock to update one or all
of its items, so that when the new version is launched it is properly
associated with the existing Dock icon.
Funny, but this was exactly the kind of thing that I mentioned being
leery of when doing self updates and (one more) reason why I wouldn't
do it this way.
Instead, I'd use a helper app to download (to a temp location) the
update and then once successfully downloaded and decompressed, replaces
the existing binary in the existing bundle. The I'd just relaunch the
app and quit the helper app.
That way aliases and links don't break and if you're app is in the dock
it just works.
Bryan
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