Check for the wirble gem before installing

1 files changed, 8 insertions, 0 deletions

diff --git a/install.rb b/install.rb
index 1f90092..1cb8a60 100644
--- a/install.rb
+++ b/install.rb
@@ -4,6 +4,14 @@
 
 #!/usr/bin/env ruby
 
+# Check for the wirble gem since the .irbrc file requires
+# this gem to successfully work.
+begin
+  require 'wirble'
+rescue LoadError
+  puts 'The .irbrc file requires wirble and you haven\'t this gem installed!'
+end
+
 # You can change your home directory ;)
 home = ARGV[0]
 home ||= '$HOME'