Move Ruby-related section under conditional

mac

@@ -178,23 +178,23 @@ if [ ! -d "$HOME/.rubies" ]; then
   export GEM_ROOT="$RUBY_ROOT/lib/ruby/gems/$RUBY_VERSION"
   export GEM_PATH="$GEM_HOME:$GEM_ROOT"
   export PATH="$GEM_HOME/bin:$GEM_ROOT/bin:$PATH"
-fi
 
-fancy_echo "Updating RubyGems ..."
-gem update --system
-fancy_echo "Installing Bundler ..."
-gem install bundler
-fancy_echo "Configuring Bundler ..."
-# FYI: "nproc" is not installed by default, comes from "coreutils"
-number_of_cores=$(nproc)
-bundle config --global jobs $((number_of_cores - 1))
-# https://bundler.io/v2.6/man/bundle-config.1.html
-bundle config --global path ".bundle"
-bundle config --global without production
-# https://github.com/brianmario/mysql2#general-instructions
-# https://github.com/brianmario/mysql2#mac-os-x
-# bundle config --global build.mysql2 -- \
-#   --with-mysql-dir="$HOMEBREW_PREFIX/opt/mysql" --with-openssl-dir="$HOMEBREW_PREFIX/opt/openssl"
+  fancy_echo "Updating RubyGems ..."
+  gem update --system
+  fancy_echo "Installing Bundler ..."
+  gem install bundler
+  fancy_echo "Configuring Bundler ..."
+  # FYI: "nproc" is not installed by default, comes from "coreutils"
+  number_of_cores=$(nproc)
+  bundle config --global jobs $((number_of_cores - 1))
+  # https://bundler.io/v2.6/man/bundle-config.1.html
+  bundle config --global path ".bundle"
+  bundle config --global without production
+  # https://github.com/brianmario/mysql2#general-instructions
+  # https://github.com/brianmario/mysql2#mac-os-x
+  # bundle config --global build.mysql2 -- \
+  #   --with-mysql-dir="$HOMEBREW_PREFIX/opt/mysql" --with-openssl-dir="$HOMEBREW_PREFIX/opt/openssl"
+fi
 
 # brew tap homebrew/bundle