Sanitize hostnames for keypairs

Fixes #76

lib/blimpy/keys.rb

@@ -15,7 +15,8 @@ module Blimpy
     end
 
     def self.key_name
-      "Blimpy-#{ENV['USER']}-#{Socket.gethostname}"
+      safe_hostname = Socket.gethostname.gsub('.', '-')
+      "Blimpy-#{ENV['USER']}-#{safe_hostname}"
     end
   end
 end

lib/blimpy/version.rb

@@ -1,3 +1,3 @@
 module Blimpy
-  VERSION = "0.6.7"
+  VERSION = "0.7.0"
 end

spec/blimpy/keys_spec.rb

@@ -2,26 +2,40 @@ require 'spec_helper'
 require 'blimpy/keys'
 
 describe Blimpy::Keys do
+  subject(:keys) { described_class }
+
   describe '#public_key' do
     context 'with no SSH keys' do
       it 'should raise a SSHKeyNotFoundError' do
         File.stub(:exists?).and_return(false)
         expect {
-          subject.public_key
+          keys.public_key
         }.to raise_error(Blimpy::SSHKeyNotFoundError)
       end
     end
   end
 
   describe '#key_name' do
+    let(:username) { 'rspecguy' }
     before :each do
-      ENV['USER'] = 'tester'
+      ENV['USER'] = username
+      Socket.should_receive(:gethostname).and_return(hostname)
     end
 
-    it do
-      hostname = 'rspec'
-      Socket.should_receive(:gethostname).and_return(hostname)
-      subject.key_name.should == "Blimpy-tester-#{hostname}"
+    context 'with a simple hostname' do
+      let(:hostname) { 'rspec' }
+
+      it 'should create the right key name' do
+        expect(keys.key_name).to eql("Blimpy-#{username}-#{hostname}")
+      end
+    end
+
+    context 'with a FQDN' do
+      let(:hostname) { 'rspec.github.io' }
+
+      it 'should create the right key name' do
+        expect(keys.key_name).to eql("Blimpy-#{username}-rspec-github-io")
+      end
     end
   end
 end