No signcolumn refresh after nvim fixendofline adds newline

[neilord]

Description

After a newline is added by the fixendofline (new)vim option triggered by saving the file, gitsigns does not update the signcolumn to indicate that change. Only after reopening the file, gitsigns highlight the change on the last line.

Neovim version

NVIM v0.10.0-dev-3097+g064f3e42e

Operating system and version

macOS 14

Expected behavior

Gitsigns does refresh signcolumn after fixendofline adds newline.

Actual behavior

Gitsigns does NOT refresh signcolumn after fixendofline adds newline.
Also, the Gitsigns refresh and even Gitsigns detach + Gitsigns attach do not refresh the signcolumn.

Minimal config

for name, url in pairs{
  gitsigns = 'https://github.com/lewis6991/gitsigns.nvim',
} do
  local install_path = vim.fn.fnamemodify('gitsigns_issue/'..name, ':p')
  if vim.fn.isdirectory(install_path) == 0 then
    vim.fn.system { 'git', 'clone', '--depth=1', url, install_path }
  end
  vim.opt.runtimepath:append(install_path)
end

require('gitsigns').setup{
  debug_mode = true, -- You must add this to enable debug messages
}

vim.opt.fixendofline = true
vim.opt.signcolumn = "yes"

Steps to reproduce

1. Create empty repo: $ cd && mkdir gitsigns_test && cd gitsigns_test && git init
2. Create file with no newline in the end: $ echo -n 'test' > file
3. Commit changes: $ git add . && git commit -m 'commit'
4. Open file with nvim $ nvim --clean -u minimal_lua_path file
5. Run :w in nvim and see that despite neovim adding newline (because of the fixendofline setting), gitsigns do not show any difference in the signcolumn.
6. Reopen the file (repeat step 4) to see the signcolumn updated.

Gitsigns debug messages

No response

[Sidney-Tan]

When I reset --hard d6a3bf0, both are ok.
When I reset --hard a28bb1d, signcolumn doesn‘t refresh，and current_line_blame doesn‘t show.

[lewis6991]

I found a small bug which I fixed in c96e3cf but that shouldn't be related.

Otherwise, it seems to work for me.

Can you double check using minimal.lua?

[neilord]

@lewis6991, thanks!
Have double checked it with minimal.lua, still not working (see 30 sec below):

file.mov

[lewis6991]

What you are showing in the video is different from the reproductions steps. If the file is committed without an EOF char, then gitsigns should not show a diff upon opening the file.

Can you please update the reproduction steps with exact commands.

Vscode is not relevant here. You can create a file without EOF using:

echo -n 'hello\n'world' > file
git add file
git commit

Also double check if you have a .editorconfig file.

[neilord]

@lewis6991 Got it, thanks! I have updated the Steps to reproduce section in this issue.

[lewis6991]

Works fine for me.

Screen.Recording.2024-05-28.at.13.54.08.mov

[neilord]

@lewis6991, interesting, thanks a lot for taking your time on this one! Will investigate deeper into my setup.