.tmux.conf

# Time in milliseconds for which tmux waits after an escape.
#
# See https://mutelight.org/practical-tmux
# See https://github.com/neovim/neovim/issues/2017#issuecomment-75140861
set-option -g escape-time 0
set-option -g repeat-time 325
# Keep quiet and don't display warnings.
### set -q
# Interact with xterm clipboard.
set-option -g set-clipboard on
# Window numbering starts from '1', '0' is too far away.
set-option -g base-index 1
# Ring the terminal bell from any window, in URxvt this is disabled, but activity is recorded.
set-option -g bell-action any
### set-option -g bell-on-alert on
# Pretend to be 'screen', easier as many scripts already recognise the $TERM string.
set -g default-terminal "tmux-256color"
# The maximum number of lines held in history, mirror URxvt configuration.
set-option -g history-limit 102400
# Mouse is useful so just go with it.
set-option -g mouse on
# Redraw the status line more frequently than the default.
set-option -g status-interval 5
# Use Vi key bindings on the tmux command line.
set-option -g status-keys vi
## Cursor shape and true colors
#set -ga terminal-overrides ',alacritty:RGB'
# See https://github.com/tmux/tmux/pull/1771#issuecomment-500906522
set -as terminal-overrides ',alacritty:RGB'
set -as terminal-overrides ',*:Smulx=\E[4::%p1%dm' # undercurl support
set -as terminal-overrides ',*:Setulc=\E[58::2::%p1%{65536}%/%d::%p1%{256}%/%{255}%&%d::%p1%{255}%&%d%;m' # underscore colours
# https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda?permalink_comment_id=4412251#gistcomment-4412251
set -ga terminal-features "*:hyperlinks"
# Disable annoying visual bells.
set-option -g visual-bell off

# Don't choose a window title for me, thank you.
set-window-option -g automatic-rename off
# Preserve any output before running interactive commands, such as Vim.
set-window-option -g alternate-screen on
# Use Vi key bindings for copy/paste operations.
set-window-option -g mode-keys vi
# Watch for activity in windows and highlight on the status line.
set-window-option -g monitor-activity on
# Numbering for panes is same as numbering for windows.
set-window-option -g pane-base-index 1
# Enable xterm-style key sequences and modifiers such as Ctrl, Alt and Shift.
set-window-option -g xterm-keys on
# Allow each window to take up the maximum monitor width/height without forcing others.
set-window-option -g aggressive-resize on

# Turn on window titles.
set -g set-titles on
# See https://github.com/tmux/tmux/blob/5b13dafbab2bc6c3b2aac1af1198df018dd720a1/options-table.c#L295
# See http://www.openbsd.org/cgi-bin/man.cgi/OpenBSD-current/man1/tmux.1?query=tmux&sec=1#x464f524d415453
set -g set-titles-string '#T - #S:#I:#W #{session_alerts}'

# Key bindings.
set-option -g prefix C-s
bind-key   C-s send-prefix
unbind-key C-b
unbind-key C-z

# Clipboard manipulation.
bind-key C-c run "tmux save-buffer - |    xclip -in  -selection clipboard >/dev/null"
bind-key C-v run "tmux set-buffer -- \"$( xclip -out -selection clipboard )\"; tmux paste-buffer"

#bind-key -T copy-mode-vi y send-keys -X copy-pipe-and-cancel 'xclip -in -selection clipboard'

# Copy and pasting
bind-key -T copy-mode-vi v send -X begin-selection
bind-key -T copy-mode-vi y send -X copy-selection

### unbind-key -T copy-mode-vi Enter
### unbind-key -T copy-mode-vi Space

# Quick pane cycling with Ctrl-S.
bind-key   C-s select-pane -t :.+
unbind-key o

# Move around panes like in Vim (only in tmux 1.6).
bind-key j select-pane -D
bind-key k select-pane -U
bind-key l select-pane -R
bind-key h select-pane -L

unbind-key Up
unbind-key Down
unbind-key Left
unbind-key Right

# Resize panes using Vi-style key bindings.
bind-key -r C-k resize-pane -U
bind-key -r C-j resize-pane -D
bind-key -r C-h resize-pane -L
bind-key -r C-l resize-pane -R

bind-key -r C-M-k resize-pane -U 5
bind-key -r C-M-j resize-pane -D 5
bind-key -r C-M-h resize-pane -L 5
bind-key -r C-M-l resize-pane -R 5

unbind-key M-Up
unbind-key M-Down
unbind-key M-Left
unbind-key M-Right

unbind-key C-Up
unbind-key C-Down
unbind-key C-Left
unbind-key C-Right

# Split window horizontally and vertically.
bind-key | split-window -h -c '#{pane_current_path}'
bind-key _ split-window -v -c '#{pane_current_path}'

unbind-key '"'
unbind-key %

# Formatting & Colours.
set-option -g mode-style                          bg=colour220,fg=colour16
set-option -g status-style                        fg=colour247
set-option -g pane-border-style                   fg=colour238
set-option -g pane-active-border-style            fg=colour248
set-option -g message-style                       bg=colour232,fg=colour220,bold

set-window-option -g window-status-activity-style fg=colour251,bold
set-window-option -g window-status-bell-style     fg=colour251,bold

set-window-option -g status-left                  '#[fg=colour252,bg=colour244] #S #[fg=colour244,bg=colour232] '
set-window-option -g status-right                 ' #[fg=colour244,bg=colour232]#[fg=colour252,bg=colour244] #h '
set-window-option -g window-status-format         " #I│ #W "
set-window-option -g window-status-current-format "#[fg=colour232,bg=colour39]#[fg=colour16,bg=colour39] #I│ #W #[fg=colour39,bg=colour232]"

set-option -g status-left-length  64
set-option -g status-right-length 64

# See https://github.com/tmux-plugins/tpm
#

# List of plugins
set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'tmux-plugins/tmux-open'

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