nixos/tmux.conf

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# Reload tmux conf.
unbind r
bind r source-file ~/.tmux.conf\; display "Reloaded conf."
# Set color enabled
set -g default-terminal "screen-256color"
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set -ga terminal-overrides ",*256col*,*kitty,alacritty:Tc"
# set-option -sa terminal-overrides ',*256col*,alacritty:RGB' # TMUX > 3.2 only
# Set escape time to something sensible
set-option -sg escape-time 10
# Enable focus events
set-option -g focus-events on
# Stop automatic window renaming
# set -g set-titles off
# set-window-option -g automatic-rename off
# set-option -g allow-rename off
# 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?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
setw -g mode-keys vi
# Status bar styling
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set -g status-bg colour238
set -g status-fg colour255
set -g status-left '[#S] '
# set the pane border colors
set -g pane-border-style 'fg=colour235,bg=colour238'
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set -g pane-active-border-style 'fg=colour75,bg=colour236'