#!/bin/bash

WD="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
INST_DIR="$HOME/.oh-my-tmux"
TMUX_CONF="$HOME/.tmux.conf"

# backup pre-existing
if [ -z "$SKIP_BACKUP" ]; then
  if [ -r $TMUX_CONF ]; then
    if [ -L $TMUX_CONF ]; then
      ln -sf $TMUX_CONF "${TMUX_CONF}.bak.$(ls -l ${TMUX_CONF}.bak* 2>/dev/null | wc -l)"
    else
      cp $TMUX_CONF "${TMUX_CONF}.bak.$(ls -l ${TMUX_CONF}.bak* 2>/dev/null | wc -l)"
    fi
  fi
fi

# skip if already at INST_DIR
if [ "$(realpath $WD)" != "$(realpath $INST_DIR)" ]; then
  rm -rf "$INST_DIR"
  ln -sf "$WD" "$INST_DIR"
fi

ln -sf "$INST_DIR/tmux.conf" "$TMUX_CONF"