.tmux.conf

# ==========================
# ===  General settings  ===
# ==========================
 
set -g default-terminal "screen-256color"
set -g history-limit 20000
set -g buffer-limit 20
set -sg escape-time 0
set -g display-time 1500
set -g remain-on-exit off
set -g repeat-time 300
setw -g allow-rename off
setw -g automatic-rename off
setw -g aggressive-resize on

# reload config file
bind-key C-r source-file ~/.tmux.conf \; display-message "~/.tmux.conf reloaded"
 
# Set parent terminal title to reflect current window in tmux session 
set -g set-titles on
set -g set-titles-string "#I:#W"

# Start index of window/pane with 1, because we're humans, not computers
set -g base-index 1
setw -g pane-base-index 1

# Enable mouse support
set -g mouse on
 
# Remap prefic from 'C-b' to 'C-d'
unbind C-b
set-option -g prefix C-a
bind-key C-a send-prefix
 
# ==========================
# ===   Key bindings     ===
# ==========================
 
# Unbind default key bindings, we're going to override
unbind "\$" # rename-session
unbind ,    # rename-window
unbind %    # split-window -h
unbind '"'  # split-window
# unbind '}'    # swap-pane -D
# unbind {    # swap-pane -U
unbind [    # paste-buffer
unbind ]
unbind "'"  # select-window
unbind n    # next-window
unbind p    # previous-window
unbind l    # last-window
unbind M-n  # next window with alert
unbind M-p  # next window with alert
unbind o    # focus thru panes
unbind &    # kill-window
unbind "#"  # list-buffer
unbind =    # choose-buffer
unbind z    # zoom-pane
unbind M-Up  # resize 5 rows up
unbind M-Down # resize 5 rows down
unbind M-Right # resize 5 rows right
unbind M-Left # resize 5 rows left
 
# Split panes using v and n 
bind v split-window -h
bind n split-window -v

# switch panes vim like 
bind j select-pane -L
bind k select-pane -D
bind l select-pane -U
bind ö select-pane -R
 
bind C-k next-window 
bind C-j previous-window
 
bind -r C-o swap-pane -D
bind -r Tab last-window   # cycle thru MRU tabs
 
# enlarge panes 
bind J resize-pane -L
bind K resize-pane -D 
bind L resize-pane -U
bind Ö resize-pane -R
 
# new window and retain cwd
bind c new-window -c "#{pane_current_path}"

# Prompt to rename window right after it's created
set-hook -g after-new-window 'command-prompt -I "#{window_name}" "rename-window '%%'"'

# Rename session and window
bind r command-prompt -I "#{window_name}" "rename-window '%%'"
bind R command-prompt -I "#{session_name}" "rename-session '%%'"
 
# Kill pane/window/session shortcuts
bind x kill-pane
bind X kill-window
bind C-x confirm-before -p "kill other windows? (y/n)" "kill-window -a"
bind Q confirm-before -p "kill-session #S? (y/n)" kill-session
 
# =====================================
# ===           Theme               ===
# =====================================

# Feel free to NOT use this variables at all (remove, rename)
# this are named colors, just for convenience
color_orange="colour166" # 208, 166
color_purple="colour134" # 135, 134
color_green="colour076" # 070
color_blue="colour39"
color_yellow="colour220"
color_red="colour160"
color_black="colour232"
color_white="white" # 015

# This is a theme CONTRACT, you are required to define variables below
# Change values, but not remove/rename variables itself
color_dark="$color_black"
color_light="$color_white"
color_session_text="$color_blue"
color_status_text="colour245"
color_main="$color_orange"
color_secondary="$color_purple"
color_level_ok="$color_green"
color_level_warn="$color_yellow"
color_level_stress="$color_red"
color_window_off_indicator="colour088"
color_window_off_status_bg="colour238"
color_window_off_status_current_bg="colour254"

# =====================================
# ===    Appearence and status bar  ===
# ======================================

set -g mode-style "fg=default,bg=$color_main"

# command line style
set -g message-style "fg=$color_main,bg=$color_dark"

# status line style
set -g status-style "fg=$color_status_text,bg=$color_dark"

# window segments in status line
set -g window-status-separator ""
separator_powerline_left=""
separator_powerline_right=""

# setw -g window-status-style "fg=$color_status_text,bg=$color_dark"
setw -g window-status-format " #I:#W "
setw -g window-status-current-style "fg=$color_light,bold,bg=$color_main"
setw -g window-status-current-format "#[fg=$color_dark,bg=$color_main]$separator_powerline_right#[default] #I:#W# #[fg=$color_main,bg=$color_dark]$separator_powerline_right#[default]"

# when window has monitoring notification
setw -g window-status-activity-style "fg=$color_main"

# outline for active pane
setw -g pane-active-border-style "fg=$color_main"

# general status bar settings
set -g status on
set -g status-interval 5
set -g status-position bottom
set -g status-justify left
set -g status-right-length 100

# define widgets we're going to use in status bar
# note, that this is not the complete list, some of them are loaded from plugins
wg_session="#[fg=$color_session_text] #S #[default]"
wg_battery="#{battery_status_fg} #{battery_icon} #{battery_percentage}"
wg_date="#[fg=$color_secondary]%h %d %H:%M#[default]"
wg_user_host="#[fg=$color_secondary]#(whoami)#[default]@#H"
wg_is_zoomed="#[fg=$color_dark,bg=$color_secondary]#{?window_zoomed_flag,[Z],}#[default]"
# TODO: highlighted for nested local session as well
wg_is_keys_off="#[fg=$color_light,bg=$color_window_off_indicator]#([ $(tmux show-option -qv key-table) = 'off' ] && echo 'OFF')#[default]"

set -g status-left "$wg_session"
set -g status-right "#{prefix_highlight} $wg_is_keys_off $wg_is_zoomed #{sysstat_cpu} | #{sysstat_mem} | #{sysstat_loadavg} | $wg_user_host | $wg_date $wg_battery #{online_status}"

# online and offline icon for tmux-online-status
set -g @online_icon "#[fg=$color_level_ok]●#[default]"
set -g @offline_icon "#[fg=$color_level_stress]●#[default]"

# Configure view templates for tmux-plugin-sysstat "MEM" and "CPU" widget
set -g @sysstat_mem_view_tmpl 'MEM:#[fg=#{mem.color}]#{mem.pused}#[default] #{mem.used}'

# Configure colors for tmux-plugin-sysstat "MEM" and "CPU" widget
set -g @sysstat_cpu_color_low "$color_level_ok"
set -g @sysstat_cpu_color_medium "$color_level_warn"
set -g @sysstat_cpu_color_stress "$color_level_stress"

set -g @sysstat_mem_color_low "$color_level_ok"
set -g @sysstat_mem_color_medium "$color_level_warn"
set -g @sysstat_mem_color_stress "$color_level_stress"

set -g @sysstat_swap_color_low "$color_level_ok"
set -g @sysstat_swap_color_medium "$color_level_warn"
set -g @sysstat_swap_color_stress "$color_level_stress"


# Configure tmux-battery widget colors
set -g @batt_color_full_charge "#[fg=$color_level_ok]"
set -g @batt_color_high_charge "#[fg=$color_level_ok]"
set -g @batt_color_medium_charge "#[fg=$color_level_warn]"
set -g @batt_color_low_charge "#[fg=$color_level_stress]"

# Configure tmux-prefix-highlight colors
set -g @prefix_highlight_output_prefix '['
set -g @prefix_highlight_output_suffix ']'
set -g @prefix_highlight_fg "$color_dark"
set -g @prefix_highlight_bg "$color_secondary"
set -g @prefix_highlight_show_copy_mode 'on'
set -g @prefix_highlight_copy_mode_attr "fg=$color_dark,bg=$color_secondary"
 
# ============================
# ===       Plugins        ===
# ============================
set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'tmux-plugins/tmux-battery'
set -g @plugin 'tmux-plugins/tmux-prefix-highlight'
set -g @plugin 'tmux-plugins/tmux-online-status'
set -g @plugin 'tmux-plugins/tmux-sidebar'
set -g @plugin 'tmux-plugins/tmux-copycat'
set -g @plugin 'tmux-plugins/tmux-open'
set -g @plugin 'samoshkin/tmux-plugin-sysstat'

# Plugin properties
set -g @sidebar-tree 't'
set -g @sidebar-tree-focus 'T'
set -g @sidebar-tree-command 'tree -C'

set -g @open-S 'https://www.google.com/search?q='