symlink_dotfiles

#!/bin/bash

set -e
set -u

this_path=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)

### Configuration ##############################################################

dotfiles_path="$this_path/dotfiles"

# Do not symlink these paths. Paths are relative to $dotfiles_path.
do_not_symlink=(
  "xfce4"
  ".irssi"
)

### Parse arguments ############################################################

ln_args=''
while getopts 'f' arg ; do
  case "$arg" in
    f)
      ln_args='f'
      ;;
    *)
      exit 1
      ;;
  esac
done

### Symlink bin ################################################################

local_bin_path="$HOME/local/bin"
mkdir -p "$local_bin_path"
if [[ ! -L "$local_bin_path" ]] ; then
  mv -i "$local_bin_path" "${local_bin_path}-old"
  ln -snvi"$ln_args" "$this_path/bin" "$local_bin_path"
fi

### Symlink dotfiles ###########################################################

in_array() {
  local e
  for e in "${@:2}" ; do
    [[ "$e" == "$1" ]] && return 0
  done
  return 1
}

for source_file_name in $(ls -A $dotfiles_path) ; do
  if (in_array "$source_file_name" "${do_not_symlink[@]}") ; then
    echo "Ignoring: $source_file_name"
  else
    ln -snvi"$ln_args" "$dotfiles_path/$source_file_name" \
      "$HOME/$source_file_name"
  fi
done

### Symlink htoprc for Linux distributions #####################################

if [[ "$OSTYPE" = linux-gnu* ]] ; then
  mkdir -p "$HOME/.config/htop"
  ln -snvi"$ln_args" "$dotfiles_path/.htoprc" "$HOME/.config/htop/htoprc"
fi

### Symlink XFCE for Linux distributions #######################################

if [[ "$OSTYPE" = linux-gnu* ]] ; then
  xfce_configs_path="$HOME/.config/xfce4"
  if [[ ! -L "$xfce_configs_path" ]] ; then
    mv -i "$xfce_configs_path" "${xfce_configs_path}-old"
    ln -snvi"$ln_args" "$dotfiles_path/xfce4" "$xfce_configs_path"
  fi
fi