Re: Git revert cannot be aborted if the repository directory has been copied

From: Kristoffer Haugsbakk <kristofferhaugsbakk@fastmail.com>
Date: Nov 3, 2024, 15:04 UTC
Message-ID: <9fd66b8f-c457-451b-9862-6121128b2786@app.fastmail.com>
In-Reply-To: <xmqqo72xxcxo.fsf@gitster.g>

On Sun, Nov 3, 2024, at 03:34, Junio C Hamano wrote:

Show 11 quoted lines

> Marco Stephan <marc.stephan96@hotmail.de> writes:
>
>> If you copy a Git repository directory to another path while there is a revert in progress for the Git repository, "git revert --abort" does not work anymore for the copied repository. Instead, it will report an error of the following format:
>>       error: Entry '...' not uptodate. Cannot merge.
>>       fatal: Could not reset index file to revision '...'.
>
> I wonder if
>
>     $ git update-index --refresh
>
> is all it takes.

This is correct. This successful test can be added to t3501-revert-cherry-pick.sh:

```
test_expect_success 'cp -r repo in the middle of a revert' '
	test_when_finished rm -r new-repo &&
	test_when_finished rm -r copy-repo &&
	test_create_repo new-repo &&
	(
		cd new-repo &&
		echo nul >test.txt &&
		git add test.txt &&
		git commit -m "Initial commit" &&
		echo test >test.txt &&
		git add test.txt &&
		git commit -m "Changes" &&
		git revert HEAD --no-commit
	) &&
	cp -r new-repo copy-repo &&
	(
		cd copy-repo &&
		# Needed in order to avoid
		#     error: Entry test.txt not uptodate. Cannot merge.
		git update-index --refresh &&
		git revert --abort
	)
'
```

-- 
Kristoffer Haugsbakk