tmux.conf

set -g update-environment 'DISPLAY GH_ENTERPRISE_TOKEN GH_HOST LINEAR_TOKEN SSH_AUTH_SOCK'

# Do this early so that it doesn't clobber any settings in this file
set -g @plugin 'tmux-plugins/tmux-sensible'

# Change session order back to alphabetical
# https://stackoverflow.com/a/63854302/406224
bind s choose-tree -sZ -O name

# ctrl-a beats ctrl-b
unbind C-b
set -g prefix C-a

# window split commands i can actually remember
unbind %
bind-key | split-window -h -c "#{pane_current_path}"
bind-key '\' split-window -h -c "#{pane_current_path}"
bind-key _ split-window -v -c "#{pane_current_path}"
bind-key - split-window -v -c "#{pane_current_path}"

# Highlight active window
set-window-option -g window-status-current-style bg=blue

# Undercurl
# https://github.com/folke/tokyonight.nvim?tab=readme-ov-file#fix-undercurls-in-tmux
set -g default-terminal "${TERM}"

# prevent neovim from defaulting to brown background inside tmux
set -ag terminal-overrides ",xterm-256color:RGB"

set -as terminal-overrides ',*:Smulx=\E[4::%p1%dm'  # undercurl support
set -as terminal-overrides ',*:Setulc=\E[58::2::%p1%{65536}%/%d::%p1%{256}%/%{255}%&%d::%p1%{255}%&%d%;m'  # underscore colours - needs tmux-3.0

if-shell "[ -f ~/.local/share/nvim/lazy/tokyonight.nvim/extras/tmux/tokyonight_moon.tmux ]" "source-file ~/.local/share/nvim/lazy/tokyonight.nvim/extras/tmux/tokyonight_moon.tmux"

# Override the "bold" in tokyonight_moon status-left
set -g status-left "#[fg=#1b1d2b,bg=#82aaff] #S #[fg=#82aaff,bg=#1e2030,nobold,nounderscore,noitalics]"

# Via :checkhealth nvim
# WARNING `focus-events` is not enabled. |'autoread'| may not work.
# - ADVICE:
#   - (tmux 1.9+ only) Set `focus-events` in ~/.tmux.conf:
set-option -g focus-events on

# reload config
bind r source-file ~/.tmux.conf \; display-message -d 3000 '🍭 Config reloaded!'
bind h select-layout even-horizontal
bind v select-layout even-vertical

# Rather than constraining window size to the maximum size of any client
# connected to the *session*, constrain window size to the maximum size of any
# client connected to *that window*. Much more reasonable.
setw -g aggressive-resize on

set -g history-limit 100000

# Set status bar
set -g status-position bottom
set -g status-interval 300

# use Ctrl-n to swap panes
# use arrow keys to cycle panes
bind-key C-n swap-pane -s :+.top \; rotate-window -Ut :+

# https://waylonwalker.com/tmux-killing-tmux/
bind k display-popup -E "\
    tmux list-sessions -F '#{?session_attached,,#{session_name}}' |\
    fzf --reverse -m --header=kill-session |\
    xargs -I {} tmux kill-session -t {}"

set-option -g status-left-length 80
set-option -g status-right-length 40

setw -g monitor-activity off
set -g visual-activity off

# set inactive/active window styles
set -g window-style 'fg=default,bg=default'
set -g window-active-style 'fg=colour250,bg=default'

# Try something like this if you want the active pane to be more obvious
#set -g window-active-style 'fg=colour250,bg=black'

# set the pane border colors
set -g pane-border-style fg=colour250,bg=colour236
set -g pane-active-border-style fg=blue,bg=colour250

# set previously-active window title colors
set-option -g window-status-last-style fg=colour50

# use a later bash
set-option -g default-command '/usr/bin/env bash -i'

# Maybe reduce lag
# https://github.com/tmux/tmux/issues/353#issuecomment-294570322
set-option -s escape-time 10

# Enable using the mouse to resize panes
# https://superuser.com/a/1017275/120685
#
# Toggle mouse rather than automatically turning it on. We do this to avoid
# constantly having to shift-click just to copy text.
# https://stackoverflow.com/a/65153140/406224
# Key bindings: ctrl-a ctrl-m
bind-key a set-option -g mouse \; display-message '🐭 Mouse #{?mouse,on,off}'

bind-key c-P display-popup -E "tmux new-session -A -s scratch"

bind-key ` display-popup -E tm

set-option -g status-right "#{?mouse,🐭,} #h | 💾 #{continuum_status}s"

# required for folke/zen-mode.nvim
set-option -g allow-passthrough on

# tmux-continuum needs to be the last plugin in this list
# See https://github.com/tmux-plugins/tmux-continuum#known-issues
set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'tmux-plugins/tmux-yank'
set -g @plugin 'sainnhe/tmux-fzf'
set -g @plugin 'tmux-plugins/tmux-resurrect'
set -g @plugin 'tmux-plugins/tmux-sessionist'
set -g @plugin 'alexwforsythe/tmux-which-key' # prefix + space
set -g @plugin 'tmux-plugins/tmux-continuum'

TMUX_FZF_LAUNCH_KEY="f"
TMUX_FZF_MENU="switch session\n/$HOME/.tmux/plugins/tmux-fzf/scripts/session.sh switch\n"

set -g @continuum-restore 'on'
set -g @continuum-save-interval '3600' # time is measured in seconds
set -g @resurrect-capture-pane-contents 'on'
set -g @resurrect-strategy-nvim 'session'
set -g @resurrect-dir '~/.cache/tmux/resurrect'

# https://github.com/tmux-plugins/tpm/blob/master/docs/automatic_tpm_installation.md#automatic-tpm-installation
if "test ! -d ~/.tmux/plugins/tpm" \
   "run 'git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm && ~/.tmux/plugins/tpm/bin/install_plugins'"

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