tmux.conf

###########################
#  Configuration
###########################

# Default theme and variant.
# TODO Make "dark" variable based on current OS setting.
TMUX_THEME_NAME=nightowl
TMUX_THEME_VARIANT=dark

# Remap prefix key
unbind C-b
set -g prefix C-s
bind C-s send-prefix

# Use 256 term for pretty colors
set -g default-terminal "screen-256color"
set -ga terminal-overrides ",*256col*:Tc"

set -g status-keys "emacs"

# Increase scroll-back history
set -g history-limit 5000

# Decrease command delay (increases vim responsiveness)
set -sg escape-time 1

# Increase repeat time for repeatable commands
set -g repeat-time 1000

# Start window at 1 since 0 is too far away
set -g base-index 1

# Re-number windows when one is closed
set -g renumber-windows on

# Don't rename windows automatically
set -g allow-rename off

set -g mouse on

set -g default-command "reattach-to-user-namespace -l fish"

###########################
# Key bindings
###########################

# Smart pane switching with awareness of vim splits
# See this blog post for additional detail:
# http://robots.thoughtbot.com/post/53022241323/seamlessly-navigate-vim-and-tmux-splits
is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
    | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|n?vim?x?)(diff)?$'"
bind -n C-h if-shell "$is_vim" "send-keys C-h"  "select-pane -L"
bind -n C-j if-shell "$is_vim" "send-keys C-j"  "select-pane -D"
bind -n C-k if-shell "$is_vim" "send-keys C-k"  "select-pane -U"
bind -n C-l if-shell "$is_vim" "send-keys C-l"  "select-pane -R"
bind -n C-\\ if-shell "$is_vim" "send-keys C-\\" "select-pane -l"

# Reload config file
bind r source-file ~/.tmux.conf \; display-message "Reloaded tmux.conf"

# Start window on current path
bind c new-window -c '#{pane_current_path}'

# Use vim key bindings
setw -g mode-keys vi

bind-key - split-window -v -c '#{pane_current_path}'
bind-key \\ split-window -h -c '#{pane_current_path}'

# Resize panes with ease
bind -n S-Left resize-pane -L 2
bind -n S-Right resize-pane -R 2
bind -n S-Down resize-pane -D 1
bind -n S-Up resize-pane -U 1

# Note: MacOS uses these shortcuts for Mission Control, disable them in System Preferences
bind -n C-Left resize-pane -L 10
bind -n C-Right resize-pane -R 10
bind -n C-Down resize-pane -D 5
bind -n C-Up resize-pane -U 5

bind C-j split-window -v "tmux list-sessions | sed -E 's/:.*$//' | grep -v '^'(tmux display-message -p '#S')'\$' | fzf --reverse | xargs tmux switch-client -t"

bind Tab switch-client -l

bind C-b send-keys 'tmux_create_if_needed_and_attach; and exit' 'C-m'
bind K run-shell 'tmux switch-client -n \;  kill-session -t "(tmux display-message -p "#S")" || tmux kill-session'

###########################
# Status Bar
###########################

# Set refresh interval for status bar
set -g status-interval 30

set -g status-justify left
set -g status-left-length 50

set-window-option -g status-left " #S "
set-window-option -g status-right " %H:%M %b %d %Y "
set-window-option -g window-status-format " #I: #W #{E:?window_zoomed_flag,🔍,} "
set-window-option -g window-status-current-format " #I: #W #{E:?window_zoomed_flag,🔍,} "

source-file "~/.tmux-themes/$TMUX_THEME_NAME/$TMUX_THEME_VARIANT.conf"