install-dotfiles.sh

#!/bin/sh
# Install all dotfiles into the home directory

DOTFILESDIRREL=$(dirname $0)
cd $DOTFILESDIRREL
DOTFILESDIR=$(pwd -P)
SCRIPTNAME=$(basename $0)

[ $(uname -s) = "Darwin" ] && export OSX=1 && export UNIX=1
[ $(uname -s) = "Linux" ] && export LINUX=1 && export UNIX=1
uname -s | grep -q "_NT-" && export WINDOWS=1

for DOTFILE in *; do
  HOMEFILE="$HOME/.$DOTFILE"
  [ -d $DOTFILE ] && DOTFILE="$DOTFILE/"
  DIRFILE="$DOTFILESDIR/$DOTFILE"

  echo $DOTFILE | egrep -q '(dotfiles|\.txt|\.md)' && continue

  # Don't install some files unless you're also called Mike.
  if echo $USER | grep -vq 'mike'
  then
    echo $DOTFILE | grep -q 'gitconfig-user' && continue
    echo $DOTFILE | grep -q 'ssh' && continue
    echo $DOTFILE | grep -q 'brew-cleanup-installed' && continue
  fi

  echo $DOTFILE | grep -q '\.sh' \
    && HOMEFILE="$HOME/.$(echo $DOTFILE | sed -e 's/\.sh//')"

  if [ $UNIX ]
  then
    if [ -L "$HOMEFILE" ] && ! [ -d $DOTFILE ]
    then
      ln -sfv "$DIRFILE" "$HOMEFILE"
    else
      rm -rv "$HOMEFILE"
      ln -sv "$DIRFILE" "$HOMEFILE"
    fi
  else
    cp -rv "$DIRFILE" "$HOMEFILE"
  fi
done