.tmux.conf

# Setting the preffix from C-b to C-a
set -g prefix C-a

# Free the original Ctrl-b prefix keybinding
unbind C-b

# Set the base index for panes to 1 instead of 0
set -g base-index 1
setw -g pane-base-index 1

is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
    | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|n?vim?x?)(diff)?$'"

# Vim like navigation
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"
bind-key -n C-\   if-shell  "$is_vim"  "send-keys C-\\"  "select-pane -l"

# Resizing Panes
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

# Expand panes
bind -r Z resize-pane -Z

# Splitting panes with | and -
bind | split-window -h -c "#{pane_current_path}"
bind - split-window -v -c "#{pane_current_path}"

# Remove default patter of split
unbind '"'
unbind %

# Enables the use of the mouse
set -g mouse off

# Set the color of the bottom of the page
set -g status-style fg=white,bold

# Set the color of the window list
setw -g window-status-style fg=white,bold

# Set the color of the active window
setw -g window-status-current-style fg=red

# Command / message line
set -g message-style fg=white,bold,bg=black

# Configuring status line's content left side
set -g status-left-length 100
set -g status-left "Session: #S "

# Configuring status line's content right side
set -g status-right ""

# Define update status line interval
set -g status-interval 60

# Enable activity alerts
setw -g monitor-activity on
set -g visual-activity on

# Enable vi keys
setw -g mode-keys vi

# Configure tmux to use same keys to copy and paste as vim editor
bind Escape copy-mode
bind -T copy-mode-vi 'v' send -X begin-selection
bind -T copy-mode-vi 'y' send -X copy-selection-and-cancel
unbind p
bind p paste-buffer

# Split pane and retain the current directory of existing pane
bind _ split-window -v -c "#{pane_current_path}"
bind \\ split-window -h -c "#{pane_current_path}"

# Shortcut for synchronize-panes toggle
bind C-s set-window-option synchronize-panes

bind C-l send-keys 'C-l'