dot_tmux.conf

# Make sure to get terminfo working correctly!
# - tmux-256color is outdated on macOS: https://gist.github.com/bbqtd/a4ac060d6f6b9ea6fe3aabe735aa9d95
# - alacritty needs its own terminfo: https://github.com/alacritty/alacritty/blob/master/INSTALL.md#terminfo
#
# Note for alacritty: when installed via homebrew still needs a git checkout to install the terminfo mentioned above
# Note for tmux-256color: the link above breaks htop, this terminfo seems to work better:
#  https://gist.github.com/nicm/ea9cf3c93f22e0246ec858122d9abea1

if-shell '[ "$TERMINAL_THEME" = light ]' \
  { source-file ~/.local/share/github-theme-contrib/tmux/github_light.conf } \
  { source-file ~/.local/share/nvim/lazy/tokyonight.nvim/extras/tmux/tokyonight_storm.tmux }

set -g default-terminal 'tmux-256color'
set-option -ga terminal-overrides ",xterm-256color:Tc,screen-256color:Tc,alacritty:Tc,xterm-kitty:Tc"
set-window-option -g xterm-keys on

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

set-option -g allow-rename off
set-option -g mouse on

set-option -g renumber-windows on

# required for vim
set-option -g focus-events on

# enable clipboard for OSC-52
set -s set-clipboard on

bind -n C-t new-window -a
bind -n S-left  prev
bind -n S-right next
bind -n C-left  swap-window -d -t -1
bind -n C-right swap-window -d -t +1

# Pane splits
unbind %
unbind '"'
bind % split-window -h -c "#{pane_current_path}"
bind '"' split-window -c "#{pane_current_path}"

# Lower ESC timeout (confusing in combination with vim)
set -s escape-time 1

# Pane resize with Ctrl-Arrow
unbind C-left
unbind C-right
unbind C-up
unbind C-down
bind -r C-left resize-pane -L
bind -r C-right resize-pane -R
bind -r C-up resize-pane -U
bind -r C-down resize-pane -D

bind h select-pane -L
bind j select-pane -U
bind k select-pane -D
bind l select-pane -R
bind -r C-h select-pane -L
bind -r C-j select-pane -U
bind -r C-k select-pane -D
bind -r C-l select-pane -R

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

# vim-style copy mode
bind-key -Tcopy-mode-vi 'v' send -X begin-selection;
bind-key -Tcopy-mode-vi Escape send -X cancel;
bind-key -Tcopy-mode-vi V send -X rectangle-toggle

# Do not copy selection and cancel copy mode on drag end event
# Prefer iTerm style selection: select, then mouse click to copy to buffer
unbind -T copy-mode-vi MouseDragEnd1Pane
bind -T copy-mode-vi MouseDragEnd1Pane send-keys -X copy-pipe-and-cancel "$HOME/.bin/tmux-yank.sh"
bind-key -Tcopy-mode-vi 'y' send -X copy-pipe-and-cancel "$HOME/.bin/tmux-yank.sh"
set -g @fingers-copy-command "$HOME/.bin/tmux-yank.sh"

# open new windows in previous working directory
bind c new-window -c "#{pane_current_path}"

# Session is considered to be remote when we ssh into host
if-shell 'test -n "$SSH_CLIENT"' 'source-file ~/.tmux.remote.conf'

# Session is considered to be local when not inside an ssh client
if-shell 'test -z "$SSH_CLIENT"' 'source-file ~/.tmux.local.conf'

# reattach-to-user-namespace
if -b "command -v reattach-to-user-namespace > /dev/null 2>&1" \
    "run 'tmux set -g default-command \"exec $(tmux show -gv default-shell) 2>/dev/null & reattach-to-user-namespace -l $(tmux show -gv default-shell)\"'"

# if-shell 'test "$(uname)" = "Darwin"' 'source ~/.tmux.Darwin.conf'
# if-shell 'test "$(uname)" = "Linux"' 'source ~/.tmux.Linux.conf'