Describe the problem

What

Two versions of tests/demo/doc/mañana.txt existed in the repository at the same time, each of them with unique filename.

This was possible because of git ill-formed approach to utilize filesystem-dependent filename representations by default: likely, the mentioned file was added twice: both on Linux and macOS and due to filename encoding differences between the systems git permitted it.

This default can be changed on macOS using:

$ git config --global core.precomposeunicode true
$ git config --global core.quotePath false

and if followed by re-adding affected files, results in fixing the issue.

Affected software

the mentioned software was installed from nixpkgs rev 355cbc482f33f5b07a6bc0d72be862b1ccdb99dd

• git version 2.44.0
  minor:

  • prints warning
  • after fixing the issue in a child branch as per described above, it becomes impossible to switch back to parent branch without hard reset

• gitoxide: gix 0.35.0

  • showstopper: fails to clone repo properly

• nix (Nix) 2.21.2 with flakes enabled

  • showstopper: fails to install copier using its flake:

$ nix profile install 'https://flakehub.com/f/copier-org/copier/*.tar.gz'
error:
       … while fetching the input 'https://flakehub.com/f/copier-org/copier/%2A.tar.gz'

       error: creating file '/nix/store/p1k8x1b6arrk91qrva2l3yzga9d1iqhw-source/tests/demo/doc/mañana.txt': File exists

Template

N/A

To Reproduce

Besides what's been already described, please see aggregated versions info below.

Also see pinned versions in your flake.lock

$ sw_vers
ProductName:		macOS
ProductVersion:		14.4.1
BuildVersion:		23E224

$ nix --version
nix (Nix) 2.21.2

$ cat ~/.config/nix/registry.json
{
  "flakes": [
    {
      "from": {
        "id": "nix",
        "type": "indirect"
      },
      "to": {
        "lastModified": 1712161137,
        "narHash": "sha256-ObaVDDPtnOeIE0t7m4OVk5G+OS6d9qYh+ktK67Fe/zE=",
        "owner": "NixOS",
        "repo": "nix",
        "rev": "355cbc482f33f5b07a6bc0d72be862b1ccdb99dd",
        "type": "github"
      }
    }
  ],
  "version": 2
}

$ git --version
git version 2.44.0

$ gix --version
gix 0.35.0

Logs

$ nix profile install 'https://flakehub.com/f/copier-org/copier/*.tar.gz'
error:
       … while fetching the input 'https://flakehub.com/f/copier-org/copier/%2A.tar.gz'

       error: creating file '/nix/store/p1k8x1b6arrk91qrva2l3yzga9d1iqhw-source/tests/demo/doc/mañana.txt': File exists

Expected behavior

it should not happen :)

Screenshots/screencasts/logs

No response

Operating system

macOS

Operating system distribution and version

14.4.1

Copier version

used nix installation instructions from copier current master branch (ae49a4)

Python version

N/A

Installation method

pipx+pypi

Additional context

nix flakes (not in the list)