Adds two functions for instantiating dotfile management with git

dotfiles.sh

# OUT="$(mktemp)"; wget -q -O - https://gist.github.com/bowmanjd/3d56cf4e2fc11cba2137cb7ce36c4de6/raw > $OUT; . $OUT

dtfnew () {
  git init -b base
  git remote add origin $1

  # Uncomment one of the following 3 lines
  git config --local status.showUntrackedFiles no
  # echo '/**' >> .git/info/exclude
  # echo '/**' >> .gitignore; git add -f .gitignore

  echo "Please add and commit additional files, then run"
  echo "git push -u origin base"
}

dtfrestore () {
  git init -b base
  git remote add origin $1

  # Uncomment one of the following 2 lines unless repo has '/**' line in a .gitignore
  git config --local status.showUntrackedFiles no
  # echo '/**' >> .git/info/exclude

  git fetch --set-upstream origin base

  git switch --no-overwrite-ignore base || echo -e 'Deal with conflicting files, then run (possibly with -f flag if you are OK with overwriting)\ngit switch base'
}