#git broken timemachine

I had some issue with a git report on my laptop, so I decided to restore it from the Time Machine.

I restored the last working backup, but when I try out some git commands, the repo seems to be damaged and it won't works anymore.

fatal: unable to read 4a0dbcbaa0287ff8fc7a91c75ab1eadfe2f8c548

and the results of  git fsck was full of missing references

Dammn! But after some retries, I found out a working solution:

I clone the remote repository in a ../new folder

Then in the broken repostory I did

cat ../new/.git/objects/pack/pack-*.pack | git unpack-objects

This filled up the missing objects in the object database and the repository seems to be fixed.