export GEM_OPEN_EDITOR="$editor"
export IRBRC="$HOME/.irbrc"
export RBXOPT="-Xrbc.db=/tmp/rbx -X19"

function rake
{
  if [ -f Gemfile ]; then
    bundle exec rake "$@"
  else
    "$(which rake)" "$@"
  fi
}

function rails_command
{
  local cmd=$1
  shift

  if [ -e script/rails ]; then
    script/rails "$cmd" "$@"
  else
    "script/$cmd" "$@"
  fi
}

function __database_yml {
  if [[ -f config/database.yml ]]; then
    ruby -ryaml -rerb -e "puts YAML::load(ERB.new(IO.read('config/database.yml')).result)['${RAILS_ENV:-development}']['$1']"
  fi
}

export PSQL_EDITOR='vim +"set syntax=sql"'
function psql
{
  if [[ "$(__database_yml adapter)" == 'postgresql' ]]; then
    PGDATABASE="$(__database_yml database)" "$(which psql)" "$@"
    return $?
  fi
  "$(which psql)" "$@"
}