#Fairly basic Tmux config.
#Copyright 2018 TheToric
#
#This program is free software: you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation, either version 3 of the License, or
#(at your option) any later version.
#
#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General Public License for more details.
#
#You should have received a copy of the GNU General Public License
#along with this program.  If not, see <http://www.gnu.org/licenses/>.

#remap prefix from C-b to alt-a
    unbind C-b
    set-option -g prefix M-a
    bind-key M-a send-prefix

#split panes using | and - 
    unbind '|'
    unbind '_'
    bind | split-window -h
    bind _ split-window -v
    unbind '"'
    unbind %

#switch panes using alt-hjkl
    bind -n M-h select-pane -L
    bind -n M-l select-pane -R
    bind -n M-k select-pane -U
    bind -n M-j select-pane -D

#or with the prefix and hjkl
    bind h select-pane -L
    bind l select-pane -R
    bind k select-pane -U
    bind j select-pane -D

#resize panes with HJKL
    bind -r H resize-pane -L 5
    bind -r J resize-pane -D 5
    bind -r K resize-pane -U 5
    bind -r L resize-pane -R 5

#sorta-kinda vim keys for copy and paste (entering copy mode is [, can paste with ]).
    bind-key -T copy-mode-vi v send-keys -X begin-selection
    bind-key -T copy-mode-vi y send-keys -X copy-selection
    bind-key -T copy-mode-vi y send-keys -X copy-pipe "xclip -sel clip -i"
    bind-key -T copy-mode-vi r send-keys -X rectangle-toggle

#display pane numbers
unbind d
bind-key d display-panes

#moving panes between windows. M to mark panes.
unbind j
bind-key j join-pane
unbind s
bind-key s swap-pane

#reload conf with r
bind r source-file ~/.tmux.conf

#fix annoying escape behavior
    set -sg escape-time 0

#pass through focus events
set -g focus-events on

#customizing status line
    #make sure the status line can hold the stuff we are about to give it.
    set -g status-left-length 40
    set -g status-right-length 40
    #have the left side status line display my hostname.
    set -g status-left " #{host_short} | "
    #have the right side status bar display the current battery status and the time/date.
    set -g status-right 'battery:#(acpi | grep -Eo "[0-9]+%" | tr "\n" " " | sed "s/\s\+$//") | %H:%M %d/%m/%y '