[jgit-dev] Auto gc in background thread prevents deleting repositories

[Rüdiger Herrmann <ruediger.herrmann@xxxxxx>]

Hi,

I have a test suite that - for each test - creates a temporary 
repository and deletes it after the test was run. Deleting is 
implemented with recursively calling File::delete() for each file in the 
repository's directory.

After updating to JGit 4.7.1, I occasionally see repositories that 
cannot be deleted because deleting the file .git/gc.log.lock fails (i.e. 
File::delete() returns false). Note that the code correctly closes the 
repository before deleting the respective directory.

It seems that the auto gc code does not stop if a repository has been/is 
being closed and thus prevents it from being deleted properly.

I currently configure the test repositories to skip auto gc in order to 
work around this issue. However in use cases where auto gc is desired, 
accessing repositories beyond their life cycle may still have unwanted 
side effects.

Kind regards,
Rüdiger