tmux config

# My tmux config
#
# reload with `tmux source ~/.tmux.conf`
#
#
# Info on tmux
#
# There are three kinds of options: server options, session options and window options.
# For session and window options, there are global options (that apply by default)
# and individual options, that can be set for a session/window individually.
#
# `set-option -s' sets global options, which do not apply to any particular window or sessions
# `set-window-opiont`
# `set-option` sets session options; there is a separate set of global session options

# set is an alias for `set-option'
# `setw' is an alias for `set-window-option'
# The flag `-g' sets global options.
# The flag `-a' appends options: `set -g status-left "foo"' followed by `set -ag status-left "bar"' will result in `foobar'.


# taken from https://sanctum.geek.nz/arabesque/vi-mode-in-tmux/
set-window-option -g mode-keys vi
bind-key -T copy-mode-vi 'v' send -X begin-selection
# bind-key -T copy-mode-vi 'y' send -X copy-selection-and-cancel
# This works better on Linux systems:
# See e.g. https://unix.stackexchange.com/questions/131011/use-system-clipboard-in-vi-copy-mode-in-tmux
bind -T copy-mode-vi y send-keys -X copy-pipe-and-cancel 'xclip -in -selection clipboard'

# the rest is taken from (and slightly adapted) https://gist.github.com/tsl0922/d79fc1f8097dde660b34


# Without this, in vim, there is a delay between pressing <Esc> and actually exiting insert mode.
# See https://stackoverflow.com/questions/13021196/how-do-i-get-vim-to-recognize-esc-key-faster
set -s escape-time 0


# mouse behavior
setw -g mouse on

# This enables 24-bit color (i.e., the full 8x8x8 spectrum)
# Source: https://wiki.archlinux.org/index.php/Tmux#256_colors
# I don't quite understand how it works, and it seems to depend on the terminal you are running tmux in.
# This is what seems to work with both Konsole and Termite:
set-option -sa terminal-overrides ',XXX:RGB'
# set -ga terminal-overrides ",xterm-256color:Tc" # --- this is what I had before, but deoplete says that this is only for older versions of tmux
# This is what Archwiki recommended for termite (but it doens't seem to work with Konsole):
# set -ga terminal-overrides ",xterm-termite:Tc"

bind-key : command-prompt
bind-key r refresh-client
bind-key L clear-history

# bind-key space next-window
bind-key bspace previous-window
bind-key enter next-layout

# use vim-like keys for splits and windows
bind-key v split-window -h -c "#{pane_current_path}"
bind-key s split-window -v -c "#{pane_current_path}"
bind-key h select-pane -L
bind-key j select-pane -D
bind-key k select-pane -U
bind-key l select-pane -R

# bind-key Tab last-window
bind-key space last-window

# NUDB: open split window with a new note
bind-key C split-window -h "export EDITOR=vim; source ~/.bash/md-agenda-bash/md-agenda-functions.sh; createnote"

# smart pane switching with awareness of vim splits:
# What this does:
#    if you're in vim, just send C-h/j/k/l to vim
#    if you're not in vim, go to one of the other panes
#
# Technical details:
# the `-n' option should be for "use root key-table" (i.e., not with the prefix key)
# by default, you use the prefix key-table.
# you can set the current key table with `switch-client -Tnewkeytable`

# bind-key -n C-h run "(tmux display-message -p '#{pane_current_command}' | grep -iqE '(^|\/)vim$' && tmux send-keys C-h) || tmux select-pane -L"
# bind-key -n C-j run "(tmux display-message -p '#{pane_current_command}' | grep -iqE '(^|\/)vim$' && tmux send-keys C-j) || tmux select-pane -D"
# bind-key -n C-k run "(tmux display-message -p '#{pane_current_command}' | grep -iqE '(^|\/)vim$' && tmux send-keys C-k) || tmux select-pane -U"
# bind-key -n C-l run "(tmux display-message -p '#{pane_current_command}' | grep -iqE '(^|\/)vim$' && tmux send-keys C-l) || tmux select-pane -R"
# bind-key -n C-\ run "(tmux display-message -p '#{pane_current_command}' | grep -iqE '(^|\/)vim$' && tmux send-keys 'C-\\') || tmux select-pane -l"


# Configure main-horizontal and main-vertical layouts
bind-key + select-layout main-horizontal # this changes the layout
bind-key = select-layout main-vertical
set-window-option -g other-pane-height 25 # sets height of the other panes in main-horizontal layout
set-window-option -g other-pane-width 80 # sets width of the other panes in main-vertical layout

bind-key a last-pane
bind-key q display-panes # useful! puts numbers in the panes and you can use the number to go to that pane
bind-key c new-window -c "#{pane_current_path}"
bind-key t next-window
bind-key T previous-window

bind-key [ copy-mode
bind-key ] paste-buffer

set-window-option -g display-panes-time 1500

# Status Bar
set-option -g status-interval 1
set-option -g status-left ''
set-option -g status-right '%l:%M%p'
set-window-option -g window-status-current-style "fg=magenta"
set-option -g status-fg default

# Status Bar solarized-dark (default)
set-option -ag status-style "bg=black"
set-option -ag pane-active-border-style "fg=yellow"
set-option -ag pane-border-style "fg=cyan"

# Status Bar solarized-light
if-shell "[ \"$COLORFGBG\" = \"11;15\" ]" "set-option -g status-style \"bg=white\""
if-shell "[ \"$COLORFGBG\" = \"11;15\" ]" "set-option -g pane-active-border-style \"fg=white\""
if-shell "[ \"$COLORFGBG\" = \"11;15\" ]" "set-option -g pane-border-style \"fg=white\""

# Set window notifications
setw -g monitor-activity on
set -g visual-activity on

# Allow the arrow key to be used immediately after changing windows
set-option -g repeat-time 0


# Tmux Plugin Manager
# -------------------
#
# Source: https://github.com/tmux-plugins/tpm
#
# Installation instructions (besides this configuration file):
#
# Run
#    git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm
# and restart tmux or use `tmux source ~/.tmux.conf'.
#
# Install plugins: add plugin in config as below; and press `prefix + I` (which fetches and sources the plugin)
# NB: this is a capital I! So shift is necessary.

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

set -g @plugin 'jbnicolai/tmux-fpp' # Facebook PathPicker; use `prefix + f' to use within tmux
# bind-key / find-window # this is overwritten by Facebook PathPicker, but seems useful

# Saving and restoring current session (prefix + C-s : save, prefix + C-r : restore)
set -g @plugin 'tmux-plugins/tmux-resurrect'
set -g @plugin 'tmux-plugins/tmux-continuum'
# Automatic restore on tmux start
set -g @continuum-restore 'on'

# FZF buffer copy paste
# Triggered by prefix-tab
# https://github.com/laktak/extrakto
set -g @plugin 'laktak/extrakto'


# 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 -b '~/.tmux/plugins/tpm/tpm'

# It seems this has to be at the end of the configuration...
# Enable native Mac OS X copy/paste
set-option -g default-command "/bin/bash -c 'which reattach-to-user-namespace >/dev/null && exec reattach-to-user-namespace $SHELL -l || exec $SHELL -l'"


set-option -g default-shell /bin/bash
set-option -g default-command /bin/bash