`git commit -a` failing consistently on windows

[erys]

With no changes in my repo and prefligit installed on pre commit hook:

➜  rust-webnovel git:(main) git commit -a
error: command `git write-tree` exited with an error:

[status]
exit code: 128

[stderr]
fatal: Unable to create 'C:/Users/Eli/Documents/GitHub/rust-webnovel/.git/index.lock': File exists.
Another git process seems to be running in this repository, e.g.
an editor opened by 'git commit'. Please make sure all processes
are terminated then try again. If it still fails, a git process
may have crashed in this repository earlier:
remove the file manually to continue.

➜  rust-webnovel git:(main) prefligit -V
prefligit 0.0.21 (3c40b0032 2025-08-06)

On windows 11.

[j178]

Can you try removing C:/Users/Eli/Documents/GitHub/rust-webnovel/.git/index.lock and see if it works?

[erys]

I've tried but the file doesn't exist once the command exits.

[ashb]

I'm amble to reproduce this on macOS too, version prek 0.0.27 (6e2a9f4d3 2025-08-17), git 2.50.1

@j178 Steps to reproduce in a checkout of the apache/airflow repo with prek hooks installed.

Make a change to a python file task-sdk/src/airflow/sdk/log.py, in my example, but I don't think it is important what file, run git commit -p --amend. Hit a to stage all the hunks in the file, and I get the same error as the OP. It's almost as if the prek hook runs too quickly 😁

I have found a commit in pre-commit that looks like it was dealing with this, I can link to it if you'd like?

[ashb]

Oh actually I've found an even easier way. Run git commit -p with no changes, and it also shows the same error.

For me, removing the -p lets it work.

[j178]

I have found a commit in pre-commit that looks like it was dealing with this, I can link to it if you'd like?

Thanks for reproducer, and please link it.