.tmux.conf

unbind C-b
set-option -g prefix C-a
bind-key C-a send-prefix

unbind h
unbind l
unbind j
unbind k
bind h previous-window
bind l next-window
bind j split-window -v
bind k split-window -h
unbind '"'
unbind %

bind r source-file ~/.tmux.conf

# -r = repeat
bind -r C-k resize-pane -U
bind -r C-j resize-pane -D
bind -r C-h resize-pane -L
bind -r C-l resize-pane -R

# 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)?$'"
# -n = no leader
bind -n 'C-h' if-shell "$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 "$is_vim" 'send-keys C-l'  'select-pane -R'
tmux_version='$(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 -T copy-mode-vi 'C-h' select-pane -L
bind -T copy-mode-vi 'C-j' select-pane -D
bind -T copy-mode-vi 'C-k' select-pane -U
bind -T copy-mode-vi 'C-l' select-pane -R
bind -T copy-mode-vi 'C-\' select-pane -l

bind-key -T copy-mode-vi 'v' send -X begin-selection     # Begin selection in copy mode.
bind-key -T copy-mode-vi 'C-v' send -X rectangle-toggle  # Begin selection in copy mode.
bind-key -T copy-mode-vi 'y' send -X copy-selection      # Yank selection in copy mode.

# List of plugins
set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'tmux-plugins/tmux-sensible'
set -g @plugin 'tmux-plugins/tmux-yank'
set -g @yank-selection 'primary'

# Other examples:
# set -g @plugin 'github_username/plugin_name'
# set -g @plugin 'git@github.com:user/plugin'
# set -g @plugin 'git@bitbucket.com:user/plugin'

# Initialize TMUX plugin manager (keep this line at the very bottom of tmux.conf)
# run '~/.tmux/plugins/tpm/tpm'