Open Neovim window in the same tab from kitty split running lazygit

[AndreasNasman]

Hi! 👋

I'm running lazygit with Neovim and kitty, and I made a config that achieves the following:

When editing a file (line),

1. if there is a Neovim window in the same tab as the window running lazy, open the file in that Neovim window
   • I use this when working on projects, where I have one kitty window for Neovim and one for lazygit.
2. otherwise, open Neovim "inside" lazygit.
   • I use this for quick edits. This is the default os.edit behavior.

Video demonstration:
https://github.com/user-attachments/assets/be2e3230-99b9-4d7e-960f-47dab8e1cbea

This works both in a split view or "fullscreen" with kitty's stack layout.

This setup has made me drop Neogit and instead use lazygit as my only tool for Git! 💪

Scripts:

# lazygit/config.yml
# ------------------
os:
  edit: 'focus-neovim {{filename}}'
  editAtLine: 'focus-neovim {{filename}} {{line}}'

# focus-neovim
# ------------
#!/usr/bin/env zsh

# lazygit uses this script to focus Neovim in the active tab or spawns a new
# instance if needed.
filename=$1
line=$2

neovim_windows_in_the_current_tab=$(kitty @ ls -m 'state:parent_active and var:IS_NVIM=1' 2> /dev/null)

if [ -z "$neovim_windows_in_the_current_tab" ]; then
    nvim +$line -- $filename
else
    window_id=$(echo $neovim_windows_in_the_current_tab | jq '.[0].tabs[0].windows[0].id')
    nvim --server /tmp/nvim-server.$window_id --remote-send ":e $filename|$line<CR>" 1> /dev/null
    kitty @ focus-window --match id:$window_id
fi

[AndreasNasman]

I forgot to mention, the reason I'm able to use var:IS_NVIM=1 in kitty @ ls -m 'state:parent_active and var:IS_NVIM=1 to find a Neovim window is due to smart-splits.nvim. A handy project that enables seamless navigation between Neovim and kitty windows (similar to vim-tmux-navigator). state:parent_active says to look for windows in the current tab.

[AndreasNasman]

Adding promptToReturnFromSubprocess makes the integration even more seamless. 👍
#1462