.tmux.conf

# reset prefix to CTRL + S
unbind C-b
set -g prefix C-s

# fast reloading of tmux conf
bind-key r source-file ~/.tmux.conf \; display-message "~/.tmux.conf reloaded"

# remapping for fast pane nav
bind-key -n C-h select-pane -L
bind-key -n C-j select-pane -D
bind-key -n C-k select-pane -U
bind-key -n C-l select-pane -R

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

# split windows more easily (double \\ because escape character)
bind-key \\ split-window -h  -c '#{pane_current_path}'
bind-key - split-window -v  -c '#{pane_current_path}'

# Fine adjustment (1 or 2 cursor cells per bump)
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

# Coarse adjustment (5 or 10 cursor cells per bump)
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

# create new window in same path
bind c new-window -c "#{pane_current_path}"

# break out pane to new window
bind-key b break-pane -d

# bind choose tree
bind-key C-j choose-tree

# I think this stuff lets paste buffer access in tmux
set -g default-command "reattach-to-user-namespace -l ${SHELL}"

setw -g mode-keys vi
bind C-c run "tmux show-buffer | reattach-to-user-namespace pbcopy"
bind C-v run "reattach-to-user-namespace pbpaste | tmux load-buffer - && tmux paste-buffer"

bind -T copy-mode-vi y send-keys -X copy-pipe-and-cancel 'reattach-to-user-namespace pbcopy'
bind -T copy-mode-vi v send-keys -X begin-selection
bind -T copy-mode-vi V send-keys -X rectangle-toggle

# Allows scrolling and selecting in copy-mode
set-option -g mouse on

# 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