.tmux.conf

#   tmux configuration
#   author: gbai <guangtong.bai@gmail.com>
#
#   modified: 2024/03/25
#   ---------------------------------------------------------------------------
#   Sections:
#   1.   Base settings
#   2.   Bindkeys
#   3.   Color schemes
#   ---------------------------------------------------------------------------
#   Note:
#   setw == set-window-option == set-option -w
#   ---------------------------------------------------------------------------

#   -------------------------------
#   1.  BASE SETTINGS
#   -------------------------------

#   Set default shell to zsh
#   --------------------------------------------------------------------------
set-option -g default-shell /bin/zsh

#   Set 256 colour terminal
#   --------------------------------------------------------------------------
set -g default-terminal "screen-256color"

#   Longer display time (default: 750)
#   --------------------------------------------------------------------------
set -g display-time 3000

#   More history (default: 2000)
#   --------------------------------------------------------------------------
set -g history-limit 100000

#   Set base index to 1 and renumber window (default: 0)
#   --------------------------------------------------------------------------
set -g base-index 1
set -g pane-base-index 1
# tmux >= 1.7
if-shell tmux_min_1.7 'set-option -g renumber-windows on'

#   Aggressive Resize
#   --------------------------------------------------------------------------
set-window-option -g aggressive-resize on

#   Set mouse mode
#   --------------------------------------------------------------------------
set -g mouse on

#	for older version tmux
#set-option -g mode-mouse on
#set-option -g mouse-resize-pane on
#set-option -g mouse-select-pane on
#set-option -g mouse-select-window on

#	for tmux 2.1
#   Turn off monitor-activity
#   --------------------------------------------------------------------------
set-window-option -g monitor-activity off

#   Faster command sequences
#   Removing the delay in switching Vim modes in tmux
#   --------------------------------------------------------------------------
set -sg escape-time 0

#   Automatically set window title
#   --------------------------------------------------------------------------
set-window-option -g automatic-rename on
set-option -g set-titles on


#   vi mode in tmux
set-window-option -g mode-keys vi

#   -------------------------------
#   2.  BINDKEYS
#   -------------------------------

#   Set prefix command to Ctrl-a
#   --------------------------------------------------------------------------
set -g prefix C-a
unbind C-b

#   Command Sequence for nested tmux session
#   --------------------------------------------------------------------------
#   Use C-a a <command> to send command to inner session
#   --------------------------------------------------------------------------
bind a send-prefix

#   Create window
#   --------------------------------------------------------------------------
unbind 'c'
bind c new-window -c '#{pane_current_path}'  # Creates new window

#   Split window (vertical, horizontal) -> (-, |)
#   --------------------------------------------------------------------------
unbind '"'
bind - splitw -v -c '#{pane_current_path}'  # Split panes vertically
unbind %
bind | splitw -h -c '#{pane_current_path}'  # Split panes horizontally

#   Select pane (above, below, left, right) -> (k, j, h, l)
#   --------------------------------------------------------------------------

#   Resize pane
#   --------------------------------------------------------------------------
bind -r C-k resizep -U 10
bind -r C-j resizep -D 10
bind -r C-h resizep -L 10
bind -r C-l resizep -R 10

#   Swap pane
#   --------------------------------------------------------------------------
bind C-u swapp -U
bind C-d swapp -D

#   Refresh pane
#   --------------------------------------------------------------------------
bind r respawn-pane -k


#   Handle window
#   --------------------------------------------------------------------------
#bind -n F1 previous-window
#bind -n F2 next-window
bind -n F9 new-window
bind -n F10 kill-window

#   Select Window
#   --------------------------------------------------------------------------
#   <ALT> + number
#bind -n M-1 select-window -t 1
#bind -n M-2 select-window -t 2
#bind -n M-3 select-window -t 3
#bind -n M-4 select-window -t 4
#bind -n M-5 select-window -t 5
#bind -n M-6 select-window -t 6
#bind -n M-7 select-window -t 7
#bind -n M-8 select-window -t 9
#bind -n M-9 select-window -t 9
#bind -n M-0 select-window -t 10
#   <Shift> + arrow
bind -n S-Left previous-window
bind -n S-Right next-window

#   Select Pane
#   --------------------------------------------------------------------------
#   <Alt> + arrow
bind -n M-Left select-pane -L
bind -n M-Right select-pane -R
bind -n M-Up select-pane -U
bind -n M-Down select-pane -D

#   <Alt> + vim keys
bind k selectp -U
bind j selectp -D
bind h selectp -L
bind l selectp -R

#   Reload config
#   --------------------------------------------------------------------------
# bind r source-file ~/.tmux.conf

# introducing a few Vim-only features to the vi mode
# bind-key -t vi-copy 'v' begin-selection
# bind-key -t vi-copy 'y' copy-selection

setw -g mode-keys vi

#   Open new pane and execute command
#   --------------------------------------------------------------------------
#   man
bind m command-prompt -p man "splitw -h 'man %1 | less'"
#   ssh
bind S command-prompt -p ssh: "new-window -n %1 'ssh %1'"
#   htop
bind ! new-window htop
#   python
bind p new-window ipython


#   -------------------------------
#   3.  COLOR SCHEMES
#   -------------------------------

#   It's leverage from wemux project

set -g status-justify centre

set -g status-interval 1
set -g status-style none
set -g status-fg white
set -g status-bg colour234

set -g status-left-length 50
set -g status-left '#[fg=colour235,bg=colour252] ❐ #S #[fg=colour245,bg=colour238] #(whoami)@#H '

set -g window-status-style none
setw -g window-status-format "#[fg=white,bg=colour234] #I #W "
setw -g window-status-current-format "#[fg=colour25,bg=colour39] #I #W "

set -g pane-border-style fg=colour245
set -g pane-active-border-style fg=colour39

set -g status-right-length 150
set -g status-right '#[fg=white,bg=colour234] [ %Y-%m-%d %H:%M ]'

# List of plugins
set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'tmux-plugins/tmux-sensible'
set -g @plugin 'tmux-plugins/tmux-resurrect'

# Other examples:
# set -g @plugin 'github_username/plugin_name'
# set -g @plugin 'git@github.com/user/plugin'
# set -g @plugin 'git@bitbucket.com/user/plugin'

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