install

if [ ! -d "$HOME/.oh-my-zsh" ]; then
  git clone git://github.com/robbyrussell/oh-my-zsh.git "$HOME/.oh-my-zsh"
  cd "$HOME/.oh-my-zsh"
  grep -v '!custom' "$HOME/.oh-my-zsh/.gitignore" > "$HOME/.oh-my-zsh/.gitignore.tmp"
  echo "custom" >> "$HOME/.oh-my-zsh/.gitignore.tmp"
  rm -f "$HOME/.oh-my-zsh/.gitignore"
  mv "$HOME/.oh-my-zsh/.gitignore.tmp" "$HOME/.oh-my-zsh/.gitignore"
  git add .gitignore
  git rm custom/example.zsh
  git rm custom/example/example.plugin.zsh
  git commit -m 'Ignore custom directory'
  cd -
  echo "Installed oh-my-zsh"
fi