Push is failing with gc error

[Thomas Hufschmidt]

Hi,

first of all thank you for taking the time to build this exercises. 😃

I was testing them so I might recommend them to some fellow colleagues that are new to git, but currently git verify does not seem to work, eg.

$ git verify
You haven't made any progress on exercise commit-one-file-staged.
Did you forget to commit your changes?

I think the issue is that push is rejected with an error, eg.

$ git push
Objekte aufzählen: 4, Fertig.
Zähle Objekte: 100% (4/4), Fertig.
Delta-Kompression verwendet bis zu 6 Threads.
Komprimiere Objekte: 100% (2/2), Fertig.
Schreibe Objekte: 100% (3/3), 300 bytes | 300.00 KiB/s, Fertig.
Gesamt 3 (Delta 0), Wiederverwendet 0 (Delta 0)
remote: (
remote: ************************************************************************
remote: Exercise: commit-one-file
remote: Status: PASSED
remote: You can see the easiest known solution and further info at:
remote: https://gitexercises.fracz.com/e/commit-one-file/4xq
remote: 
remote: Next task: commit-one-file-staged
remote: In order to start, execute: git start next
remote: 
remote: See your progress and instructions at:
remote: https://gitexercises.fracz.com/c/4xq
remote: ************************************************************************
remote: )
remote: Remember that you can use git verify to strip disturbing output.
remote: error: hook declined to update refs/heads/commit-one-file
remote: error: The last gc run reported the following. Please correct the root cause
remote: and remove gc.log.
remote: Automatic cleanup will not be performed until the file is removed.
remote: 
remote: warning: There are too many unreachable loose objects; run 'git prune' to remove them.
remote: 
To https://gitexercises.fracz.com/git/exercises.git
 ! [remote rejected] commit-one-file -> commit-one-file (hook declined)
error: Fehler beim Versenden einiger Referenzen nach 'https://gitexercises.fracz.com/git/exercises.git'

My guess is that you need to add automatic garbage collection to your backend git-server, eg. as post-push hook.

The generated link (eg. https://gitexercises.fracz.com/c/4xq) does work however, pushing a solution does increase your progress.
So it seems its only an issue with git push failing unexpectedly (due to to many unreachable loose objects)

[Wojciech Frącz]

Thank you for the inspection and the suggestiong. Have launched git gc and git prune now manually and added this to the crontab. Should be working now :-)