Open a gem in a fast way.

ogem.sh

#!/usr/bin/env bash

if [ -z $1 ] || [ $1 == "-h" ] || [ $1 == "--help" ]
then
  echo "Usage: `basename $0` [Gemname]"
  exit 0
fi

GEM_NAME=$1

GEM_DIR=$HOME/.rvm/gems/$RUBY_VERSION/gems
STD_DIR=$HOME/.rvm/rubies/$RUBY_VERSION/lib/ruby/

MATCHING_GEMS=()

function _edit {
  if [[ $EDITOR = "" ]]
  then
    EDITOR="vim"
  fi

  if [[ $EDITOR =~ "vim" ]]
  then
    cd $GEM_DIR/${MATCHING_GEMS[number]}//lib
    $EDITOR -c NERDTree
  else
    $EDITOR $GEM_DIR/${MATCHING_GEMS[number]}/lib
  fi
}

function _choose {
  for ((i=0; i<${#MATCHING_GEMS[@]}; i++))
  do
    echo "   $i: ${MATCHING_GEMS[$i]}"
  done

  echo -n "=> Choose: "

  read number
}

function _ogem {
  for gem in $(ls $GEM_DIR)
  do 
    if [[ $gem =~ $GEM_NAME ]]
    then
      MATCHING_GEMS=("${MATCHING_GEMS[@]}" $gem)
    fi
  done
  
  if [ ${#MATCHING_GEMS[@]} -gt 0 ]
  then
    if [ ${#MATCHING_GEMS[@]} -eq 1 ]
    then
      _edit
    else
      echo "=> Find ${#MATCHING_GEMS[@]} matching gems in \`$GEM_DIR.\`"
      _choose
      if [[ -s $GEM_DIR/${MATCHING_GEMS[number]} && ${MATCHING_GEMS[number]} ]]
      then
        _edit
      else
        echo "Invalid argument"
      fi
    fi
  else
    echo "Can not find any matching gem in \`$GEM_DIR\` named \`$GEM_NAME\`".
  fi
}

_ogem