.tmux.conf

# ctrl-space for modifier
unbind C-b
set -g prefix C-a
bind C-a send-prefix

# color theme
set -g default-terminal "xterm-256color"
set -ga terminal-overrides ",xterm-256color:Tc"

# mouse functionality
set -g mouse on

# new panes on current path
bind '%' split-window -h -c '#{pane_current_path}'  # Split panes horizontal
bind '"' split-window -v -c '#{pane_current_path}'  # Split panes vertically
bind c new-window -c '#{pane_current_path}' # Create new window

# start window and pane numbering from 1
set -g base-index 1
setw -g pane-base-index 1

# renumber windows on close
set -g renumber-windows on

# have tmux remember more lines
set -g history-limit 10000

# smooth copy and pasting
# tmux < v2.1:
if-shell "[[ `tmux -V | cut -d' ' -f2` -lt 2.1 ]]" "setw -g mode-mouse off"
# tmux >= v2.1:
if-shell "[[ `tmux -V | cut -d' ' -f2` -ge 2.1 ]]" "setw -g mouse 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


## === COLORSCHEME: gruvbox dark (medium) ===
set-option -g status "on"

# default statusbar color
set-option -g status-style bg=colour237,fg=colour223 # bg=bg1, fg=fg1

# default window title colors
set-window-option -g window-status-style bg=colour214,fg=colour237 # bg=yellow, fg=bg1

# default window with an activity alert
set-window-option -g window-status-activity-style bg=colour237,fg=colour248 # bg=bg1, fg=fg3

# active window title colors
set-window-option -g window-status-current-style bg=red,fg=colour237 # fg=bg1

# pane border
set-option -g pane-active-border-style fg=colour250 #fg2
set-option -g pane-border-style fg=colour237 #bg1

# message infos
set-option -g message-style bg=colour239,fg=colour223 # bg=bg2, fg=fg1

# writing commands inactive
set-option -g message-command-style bg=colour239,fg=colour223 # bg=fg3, fg=bg1

# pane number display
set-option -g display-panes-active-colour colour250 #fg2
set-option -g display-panes-colour colour237 #bg1

# clock
set-window-option -g clock-mode-colour colour109 #blue

# bell
set-window-option -g window-status-bell-style bg=colour167,fg=colour235 # bg=red, fg=bg

## Theme settings mixed with colors (unfortunately, but there is no cleaner way)
set-option -g status-justify "left"
set-option -g status-left-style none
set-option -g status-left-length "80"
set-option -g status-right-style none
set-option -g status-right-length "80"
set-window-option -g window-status-separator ""

set-option -g status-left "#[bg=colour241,fg=colour248] #S #[bg=colour237,fg=colour241,nobold,noitalics,nounderscore]"
set-option -g status-right "#[bg=colour237,fg=colour239 nobold, nounderscore, noitalics]#[bg=colour239,fg=colour246] %Y-%m-%d  %H:%M #[bg=colour239,fg=colour248,nobold,noitalics,nounderscore]#[bg=colour248,fg=colour237] #h "

set-window-option -g window-status-current-format "#[bg=colour2,fg=colour237,nobold,noitalics,nounderscore]#[bg=colour2,fg=colour239] #I #[bg=colour2,fg=colour239,bold] #W #[bg=colour237,fg=colour2,nobold,noitalics,nounderscore]"
set-window-option -g window-status-format "#[bg=colour239,fg=colour237,noitalics]#[bg=colour239,fg=colour223] #I #[bg=colour239,fg=colour223] #W #[bg=colour237,fg=colour239,noitalics]"

# vim: set ft=tmux tw=0 nowrap: