functions

#!/bin/bash
set -e

function link_configs {
  mkdir -pv $1/backup
  for config_to_link in $1/ln_*; do
    if [ -f $config_to_link ]; then
      config_name=${config_to_link#*_}
      [ -f ~/.$config_name ] && [ ! -L ~/.$config_name ] && mv -v ~/.$config_name $1/backup/.$config_name
      ln -sfv $config_to_link ~/.$config_name
    fi
  done
}

function link_executables {
  link_common $1 "bin"
}

function link_aliases {
  link_common $1 "aliases"
}

# $1 base_dir, $2 scope
function link_common {
  mkdir -pv $1/backup/$2
  for linkable in $1/$2/* $1/$2/**/*; do
    if [ -f $linkable ]; then
      link_name=${linkable##*/}
      [ -f ~/$2/$link_name ] && [ ! -L ~/$2/$link_name ] && mv -v ~/$2/$link_name $1/backup/$2/$link_name
      ln -svf $linkable ~/$2/$link_name
    fi
  done
}