.tmux.conf

# Keybinds
## Prefix keybinds
### Set Ctrl+A as another prefix binding
set prefix2 C-a

### Allow recursive prefix binds (accommodate nested tmux sessions)
bind-key a send-prefix
bind-key b send-prefix

## Bind 'r' as config reload
#bind r source-file ~/.tmux.conf

## Root keybinds (always active)
### Bind 'Alt+ArrowKeys' to move cursor between panes  # ('M' is meta key, typically LeftAlt)
bind-key -T root M-Left select-pane -L
bind-key -T root M-Right select-pane -R
bind-key -T root M-Up select-pane -U
bind-key -T root M-Down select-pane -D

### Bind 'Ctrl+Alt+ArrowKeys' for directionally swapping panes locations
bind-key -T root C-M-Left  select-pane -L \; select-pane -m \; select-pane -R \; swap-pane \; select-pane -M
bind-key -T root C-M-Right select-pane -R \; select-pane -m \; select-pane -L \; swap-pane \; select-pane -M
bind-key -T root C-M-Up    select-pane -U \; select-pane -m \; select-pane -D \; swap-pane \; select-pane -M
bind-key -T root C-M-Down  select-pane -D \; select-pane -m \; select-pane -U \; swap-pane \; select-pane -M

### Bind 'Shift+Alt+ArrowKeys' for directionally resizing panes dimensions
bind-key -T root S-M-Left  resize-pane -L 2
bind-key -T root S-M-Right resize-pane -R 2
bind-key -T root S-M-Up    resize-pane -U 2
bind-key -T root S-M-Down  resize-pane -D 2

## Pane splitting keybinds
### Bind '"' and '%' (same as default), but add `-c` which inherits working directory.
bind '"' split-window -v -c "#{pane_current_path}"
bind '%' split-window -h -c "#{pane_current_path}"

# Keyboard/mouse behaviors
## Timeouts
### Don't wait for further keys after 'Esc'
set -s escape-time 0

### Grace period after sending prefix for sending multiple keybinds
set repeat-time 700

## Mouse control
### Enable mouse control - this may conflict with mouse bindings from your terminal emulator
set mouse on
unbind-key -T root MouseDown1Pane  # Disable "left click to activate pane" behavior


# Appearance
## Colors
### Enable 256 colors support
set -g default-terminal "tmux-256color"

### Visually highlight the active pane (slightly alter text/background colors)
set -g window-style 'fg=colour247,bg=colour236'
set -g window-active-style 'fg=colour250,bg=black'

## Dimensions
### Constrain window size (to accommodate the smallest connected client) on a per-window basis, not a per-session basis
setw -g aggressive-resize on

## Status bar
### Enable status line
set status on
### Update status line every 5 seconds
set status-interval 5

### Window name reflects the currently running command
set automatic-rename-format "#(ps -f --no-headers --ppid $(tmux display-message -p #{pane_pid}) | awk '{ print substr($0, index($0,$8)) }') "

### Visually highlight the window ringing the bell
set-window-option monitor-bell on

### Set white backdrop, black text, no left-hand status
set status-bg colour7
set status-fg black
set status-left ""

### Limit the maximum status text length
set status-left-length 40
set status-right-length 40


# Window management
## Window indexing

### Index window numbers from 1 (skip 0)
set base-index 1
set pane-base-index 1
set renumber-windows on

### Re-index the first window as 1
move-window -t 1

## Window naming
### Automatically name windows when unspecified
set-window-option -g automatic-rename on
set-option -g set-titles on

### Rename the first window (at index 1) to 'main'
rename-window -t 1 main


# Session management
## Commands
### Default command to execute in new panes is `bash`
set-option -g default-command bash

## Persistence
### Don't destroy session when empty or unattached
set exit-unattached off
set destroy-unattached off

## History
### Set long scrollback history
set-option -g history-limit 10000


# Plugins
## tmux plugin manager 
### Initialize tmux plugin manager - this should always be the last line
#run '~/.tmux/plugins/tpm/tpm'