Not Working as Expected with Lazyvim

[Josh-Piper]

https://www.reddit.com/r/neovim/comments/14yer8w/neovimtmux_navigation_plugin_with_lazyvim_not/

Hi,

I am trying to install the plugin https://github.com/alexghergh/nvim-tmux-navigation so I can easily switch between Tmux panes and Neovim panes. I am using the default lazyvim installation plus the additions I have mentioned https://www.lazyvim.org/installation

Currently, I am able to use ctrl+hjkl to move between neovim panes using the current setup in a normal session without tmux.

BUT

During a tmux session, I am only able to move between the tmux panes and not to/between the neovim sessions.

So this implementation that I have seems to not be working on the tmux side since the NvimTmux commands are executing as expected. I was hoping I could be pointed in the right direction towards fixing this tmux issue.

lua/plugins/tmux.lua

return {
  "alexghergh/nvim-tmux-navigation",
  event = "VeryLazy",
  config = function()
    local nvim_tmux_nav = require("nvim-tmux-navigation")
    nvim_tmux_nav.setup({
      disable_when_zoomed = true,
      -- defaults to false
      keybindings = {
        left = "<C-h>",
        down = "<C-j>",
        up = "<C-k>",
        right = "<C-l>",
        last_active = "<C-\\>",
        next = "<C-Space>",
      },
    })
  end,
}

lua/config/keymap.lua

vim.keymap.set("n", "<C-h>", "<Cmd>NvimTmuxNavigateLeft<CR>", { silent = true })
vim.keymap.set("n", "<C-j>", "<Cmd>NvimTmuxNavigateDown<CR>", { silent = true })
vim.keymap.set("n", "<C-k>", "<Cmd>NvimTmuxNavigateUp<CR>", { silent = true })
vim.keymap.set("n", "<C-l>", "<Cmd>NvimTmuxNavigateRight<CR>", { silent = true })
vim.keymap.set("n", "<C-\\>", "<Cmd>NvimTmuxNavigateLastActive<CR>", { silent = true })
vim.keymap.set("n", "<C-Space>", "<Cmd>NvimTmuxNavigateNavigateNext<CR>", { silent = true })

~/.tmux.conf

set -g default-terminal "screen-256color"

set -g prefix C-a
unbind C-b
bind-key C-a send-prefix

unbind %
bind | split-window -h 

unbind '"'
bind - split-window -v

unbind r
bind r source-file ~/.tmux.conf

bind -r j resize-pane -D 5
bind -r k resize-pane -U 5
bind -r l resize-pane -R 5
bind -r h resize-pane -L 5

bind -r m resize-pane -Z

set -g mouse on

set-window-option -g mode-keys vi

bind-key -T copy-mode-vi 'v' send -X begin-selection # start selecting text with "v"
bind-key -T copy-mode-vi 'y' send -X copy-selection # copy text with "y"

unbind -T copy-mode-vi MouseDragEnd1Pane # don't exit copy mode when dragging with mouse

# remove delay for exiting insert mode with ESC in Neovim
set -sg escape-time 10

# tpm plugin
set -g @plugin 'tmux-plugins/tpm'

# list of tmux plugins
# set -g @plugin 'christoomey/vim-tmux-navigator'
# THIS IS WHERE THE NEW CODE FOR NAVIGATION IS
is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
    | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|n?vim?x?)(diff)?$'"

bind-key -n 'C-h' if-shell "$is_vim" 'send-keys C-h' 'select-pane -L'
bind-key -n 'C-j' if-shell "$is_vim" 'send-keys C-j' 'select-pane -D'
bind-key -n 'C-k' if-shell "$is_vim" 'send-keys C-k' 'select-pane -U'
bind-key -n 'C-l' if-shell "$is_vim" 'send-keys C-l' 'select-pane -R'

tmux_version='$(tmux -V | sed -En "s/^tmux ([0-9]+(.[0-9]+)?).*/\1/p")'

if-shell -b '[ "$(echo "$tmux_version < 3.0" | bc)" = 1 ]' \
    "bind-key -n 'C-\\' if-shell \"$is_vim\" 'send-keys C-\\'  'select-pane -l'"
if-shell -b '[ "$(echo "$tmux_version >= 3.0" | bc)" = 1 ]' \
    "bind-key -n 'C-\\' if-shell \"$is_vim\" 'send-keys C-\\\\'  'select-pane -l'"

bind-key -n 'C-Space' if-shell "$is_vim" 'send-keys C-Space' 'select-pane -t:.+'

bind-key -T copy-mode-vi 'C-h' select-pane -L
bind-key -T copy-mode-vi 'C-j' select-pane -D
bind-key -T copy-mode-vi 'C-k' select-pane -U
bind-key -T copy-mode-vi 'C-l' select-pane -R
bind-key -T copy-mode-vi 'C-\' select-pane -l
bind-key -T copy-mode-vi 'C-Space' select-pane -t:.+


# END FANCY STUFF <---------

set -g @plugin 'jimeh/tmux-themepack'
set -g @plugin 'tmux-plugins/tmux-resurrect' # persist tmux sessions after computer restart
set -g @plugin 'tmux-plugins/tmux-continuum' # automatically saves sessions for you every 15 minutes

set -g @themepack 'powerline/default/cyan'

set -g @resurrect-capture-pane-contents 'on'
set -g @continuum-restore 'on'

# Initialize TMUX plugin manager (keep this line at the very bottom of tmux.conf)
run '~/.tmux/plugins/tpm/tpm'

[Josh-Piper]

Could it be that I am using MacOS? Would that result in the grep and sed having an unexpected outcome for the tmux?

[alexghergh]

Hello, mind sharing what the problem was so I can potentially fix/improve the code? Was it the issue mentioned in your last comment?

[Josh-Piper]

Like your readme mentioned, I went into the original author's repository and went through their debugging process, and noticed the vim process wasn't appearing when running : TmuxNavigatorProcessList.

It mentioned that Figterm was being used instead, so it turned out a workaround script was needed.

Original issue was related to using Fig.

christoomey/vim-tmux-navigator#339

[finomayato]

Probably worth including the Lua/lazy configuration for plugin keymaps in README.md. It would've saved me some time and likely will for others.

[alexghergh]

Included the above issue in the README file as a FAQ sub-point. Conversation might be relevant to other users.

Thanks for mentioning it!