.tmux.conf

# Change the prefix key to C-a
set -g prefix C-a
unbind C-b
bind C-a send-prefix

# enable mouse use
set -g mouse on

# use vim keybindings in the copy mode
set-window-option -g mode-keys vi

# set zsh as default shell
set-option -g default-shell /bin/zsh

# vim copy bindings
bind [ copy-mode
bind Escape copy-mode
bind -Tcopy-mode-vi v send -X begin-selection
# bind -Tcopy-mode-vi y send -X copy-pipe 'wl-copy' \; display-message "copied to system clipboard"
bind -Tcopy-mode-vi y send-keys -X copy-pipe-and-cancel "wl-copy"
bind -Tcopy-mode-vi C-v send -X rectangle-toggle
# bind ] paste-buffer
bind p paste-buffer


# Synchronize tmux copy-paste with the Wayland clipboard
# bind -T copy-mode-vi Enter send-keys -X copy-pipe-and-cancel "wl-copy"
set-option -s set-clipboard off


# nvim healthcheck suggestions
set-option -sg escape-time 10
set-option -g default-terminal "screen-256color"

# Smart pane switching with awareness of Vim splits.
# See: https://github.com/christoomey/vim-tmux-navigator
is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
    | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|n?v?i?m?x?)(diff)?$'"
    # | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|n?vim?x?)(diff)?$'"
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 -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