linkup

#!/usr/bin/env zsh
#
# Links the contents of the `dotfiles` directory into the home directory,
# prefixing each with a `.`.

RELATIVE_PATH=`dirname $0`
BASE_PATH=`( cd ${RELATIVE_PATH} && pwd)`
BACKUP_PATH=$RELATIVE_PATH/backup/`date +%Y%m%d%k%M%S`
DOTFILES_PATH=${BASE_PATH}/dotfiles

for FILE in $DOTFILES_PATH/*; do
    NAME=`basename $FILE`
    DEST=~/.$NAME

    if [[ -L $DEST ]] && [[ `readlink $DEST` == $FILE ]]; then
        # The link is already to the destination; we don't need to do
        # anything.
        continue
    elif [[ -e $DEST ]] then
      mkdir -p $BACKUP_PATH
      echo "Backing up $DEST"
      mv $DEST $BACKUP_PATH/$NAME
    fi

    ln -s $FILE $DEST
done

mkdir -p ~/bin
for FILE in ${BASE_PATH}/bin/*; do
    NAME=`basename $FILE`
    DEST=~/bin/$NAME

    if [[ -L $DEST ]] && [[ `readlink $DEST` == $FILE ]]; then
        # The link is already to the destination; we don't need to do
        # anything.
        continue
    elif [[ -e $DEST ]] then
      mkdir -p $BACKUP_PATH/bin
      echo "Backing up $DEST"
      mv $DEST $BACKUP_PATH/bin/$NAME
    fi

    ln -s $FILE $DEST
done

# Karabiner doesn't let us customize where it's config lives, it must be at
# ~/.config/karabiner/karabiner.json, and that file is not allowed to be a
# symlink itself. I don't want to track the entire `~/.config` directory
# (because some other things like iTerm also stuff cruft in there), so here's a
# custom link only for macos (Darwin).
if [[ $(uname) == "Darwin" ]]; then
  mkdir -p ~/.config
  ln -s $BASE_PATH/karabiner ~/.config
fi