gemish.sh

#!/usr/bin/env bash

gemish() {
  check_gem() {
    if [ -n "$2" ]; then
      gem list $1 | grep "^$1 " | grep -q "\($2\)"
    else
      gem list $1 | grep -q "^$1 "
    fi
  }

  install_gem() {
    cmd="gem install --user-install --no-ri --no-rdoc $1"
    if [ -n "$2" ]; then
      $cmd --version $2
    else
      $cmd
    fi
  }

  if check_gem $1 $2; then
    echo "gemish: exists:     $1 $2"
  else
    echo "gemish: installing: $1 $2"
    install_gem $1 $2
  fi
}

gemish json 1.4.3
gemish sinatra 1.0
gemish bcrypt-ruby 2.1.2
gemish twitter 0.9.4
gemish rest-client 1.5.0
gemish typhoeus 0.1.27
gemish json 1.2.4
gemish redis 1.0.7
gemish resque 1.8.2
gemish flickr_fu 0.3.0
gemish twitter 0.9.5
gemish bcrypt-ruby 2.1.2
gemish pony 1.0
gemish mini_fb 1.0.3