ruby.sh in sunzi-rails-0.2.20

- old
+ new
@@ -4,25 +4,45 @@
 PLUGINS_PATH=$RBENV_PATH/plugins
 PROFILE=$DEPLOYER_PATH/.bashrc
 RUBY_VERSION=<%= @attributes.ruby_version %>
 RBENV_EXPORT_PATH="export PATH=\"$RBENV_PATH/bin:$PLUGINS_PATH/ruby-build/bin:$PATH\""
 RBENV_INIT='eval "$(rbenv init -)"'
+RUBY_VERSION_PATH="$RBENV_PATH/versions/$RUBY_VERSION"
 
 if sunzi.to_be_done "install ruby"; then
-  git clone git://github.com/sstephenson/rbenv.git $RBENV_PATH
-  git clone git://github.com/sstephenson/ruby-build.git $PLUGINS_PATH/ruby-build
-  git clone git://github.com/sstephenson/rbenv-gem-rehash.git $PLUGINS_PATH/rbenv-gem-rehash
-  git clone git://github.com/dcarley/rbenv-sudo.git $PLUGINS_PATH/rbenv-sudo
 
+  if ! [ -d "$RBENV_PATH" ]
+  then
+    git clone git://github.com/sstephenson/rbenv.git $RBENV_PATH
+    git clone git://github.com/sstephenson/ruby-build.git $PLUGINS_PATH/ruby-build
+    git clone git://github.com/sstephenson/rbenv-gem-rehash.git $PLUGINS_PATH/rbenv-gem-rehash
+    git clone git://github.com/dcarley/rbenv-sudo.git $PLUGINS_PATH/rbenv-sudo
+  fi
+
+  # Change user and group to deployer to allow gem installs
+  chown -R deployer:deployer $DEPLOYER_PATH/.rbenv
+
   eval $RBENV_EXPORT_PATH
   eval $RBENV_INIT
   echo $RBENV_EXPORT_PATH >> $PROFILE
   echo $RBENV_INIT >> $PROFILE
 
-  rbenv install $RUBY_VERSION
+  if [ -d "$RUBY_VERSION_PATH" ]
+  then
+    echo 'deleting existing ruby version $RUBY_VERSION_PATH'
+    rm -R $RUBY_VERSION_PATH
+  fi
+
+  echo 'installing ruby version $RUBY_VERSION'
+  rbenv install -v $RUBY_VERSION
+
+  echo 'setting global for ruby version $RUBY_VERSION'
   rbenv global $RUBY_VERSION
+
+  echo 'setting doc for deployer'
   echo 'gem: --no-ri --no-rdoc' > $DEPLOYER_PATH/.gemrc
+
+  echo 'install bundler'
   gem install bundler
-  gem install backup
 
   sunzi.done "install ruby"
 fi