Support for SHA-256 object format repositories (fails with "invalid path") #2800
Description
Is your feature request related to a problem? Please describe.
I am unable to use gitui in repositories initialized with the SHA-256 object format (git init --object-format=sha256). When I attempt to launch the application in such a repository, it immediately fails and exits with the error message: invalid path: please run gitui inside of a non-bare git repository.
This is frustrating because the repository is completely valid. I can perform all operations using the standard Git CLI without issues. Furthermore, other TUI tools like lazygit handle these SHA-256 repositories correctly, which suggests the issue is specific to gitui or its underlying libgit2 bindings not parsing the repository metadata correctly.
Describe the solution you'd like
I would like gitui to detect and support repositories using the SHA-256 hashing algorithm. It should launch normally and allow for standard git operations, just as it does with standard SHA-1 repositories.
Describe alternatives you've considered
I have verified that reverting to the default SHA-1 format (git init) allows gitui to work, but this is not a viable solution for my workflow as I specifically require the security properties of SHA-256. Currently, I am forced to use the CLI or alternative tools like lazygit for these specific repositories.
Additional context
Here are the steps to reproduce the issue:
- Initialize a new repository with git init --object-format=sha256.
- Run gitui.
- Observe the error: invalid path: please run gitui inside of a non-bare git repository.