Escape paths in Git using Shellwords

If the working directory path contained spaces, Git (the class) would choke on these. Escaping the paths with Shellwords prevents this choking.

Fixes #16

lib/git.rb

@@ -1,3 +1,5 @@
+require 'shellwords'
+
 class Git
   attr_accessor :user, :repo
 
@@ -29,7 +31,15 @@ def exists?
   end
 
   def clone
-    `git clone -q #{self.class.host}#{user}/#{repo} #{path}`
+    `git clone -q #{origin} #{destination}`
+  end
+
+  def origin
+    Shellwords.escape("#{self.class.host}#{user}/#{repo}")
+  end
+
+  def destination
+    Shellwords.escape(path.to_s)
   end
 
   def pull

spec/lib/git_spec.rb

@@ -1,4 +1,5 @@
 require 'rails_helper'
+require 'shellwords'
 
 describe Git do
   let(:args) { ["radar", "markdown_book_test"] }
@@ -18,7 +19,9 @@
 
   it "initializes a new repository" do
     git = Git.new(*args)
-    expect(git).to receive(:`).with("git clone -q #{Git.host}#{args.join("/")} #{test_repo}")
+    origin = Shellwords.escape("#{Git.host}#{args.join("/")}")
+    destination = Shellwords.escape(test_repo)
+    expect(git).to receive(:`).with("git clone -q #{origin} #{destination}")
     git.update!
   end