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prezto/plugins/ruby/init.zsh

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# Install local gems according to Mac OS X conventions.
if [[ "$OSTYPE" == darwin* ]]; then
export GEM_HOME=$HOME/Library/Ruby/Gems/1.8
export PATH=$GEM_HOME/bin:$PATH
# gem is slow; cache its output.
cache_file="${0:h}/cache.zsh"
if [[ ! -f "$cache_file" ]]; then
echo export GEM_PATH=$GEM_HOME:$(gem env gempath) >! "$cache_file"
source "$cache_file"
else
source "$cache_file"
fi
unset cache_file
fi
# Loads RVM into the shell session.
completion_file="${0:h}/_rvm"
if [[ -s "$HOME/.rvm/scripts/rvm" ]]; then
source "$HOME/.rvm/scripts/rvm"
# Complete rvm.
if [[ ! -e "$completion_file" ]]; then
ln -f -s "$rvm_path/scripts/zsh/Completion/_rvm" "$completion_file" 2> /dev/null
fi
else
if [[ -L "$completion_file" ]]; then
unlink "$completion_file" 2> /dev/null
fi
fi
unset completion_file
# Loads rbenv into the shell session.
if [[ -s "$HOME/.rbenv/bin/rbenv" ]]; then
path=("$HOME/.rbenv/bin" $path)
eval "$(rbenv init -)"
fi