diff --git a/rake/lib/git.rb b/rake/lib/git.rb
index 0cab96bc..13415bd2 100644
--- a/rake/lib/git.rb
+++ b/rake/lib/git.rb
@@ -1,9 +1,12 @@
 include Rake::DSL
 
-def git(url,dest)
-    sh "git clone #{url} #{dest}" unless Dir.exists?(dest)
+def git(url, dest)
+  unless Dir.exists?("#{dest}/.git")
+    rm_rf dest if Dir.exists?(dest)
+    sh "git clone '#{url}' '#{dest}'"
+  end
 end
 
-def github(repo,dest)
-    git "https://github.com/#{repo}.git", dest
+def github(repo, dest, protocol = "https")
+  git "#{protocol}://github.com/#{repo}.git", dest
 end
diff --git a/rake/lib/output.rb b/rake/lib/output.rb
index 9f407f6f..4717220f 100644
--- a/rake/lib/output.rb
+++ b/rake/lib/output.rb
@@ -1,9 +1,9 @@
-def echo(msg)
-    # print green text
-    puts "\e[32m=> #{msg}\e[0m"
+def echo(msg, level = 1)
+  # print green text
+  puts "\e[32m#{"="*level}> #{msg}\e[0m"
 end
 
-def echoerr(msg)
-    # print red text
-    puts "\e[31m=> #{msg}\e[0m"
+def error(msg)
+  # print red text
+  puts "\e[31m=> #{msg}\e[0m"
 end
diff --git a/rake/lib/sh.rb b/rake/lib/sh.rb
index b7a02c9e..9e8b8b7a 100644
--- a/rake/lib/sh.rb
+++ b/rake/lib/sh.rb
@@ -4,16 +4,16 @@ require_relative 'output'
 # when it encounters a problem. I'll leave it up to the
 # programmer to expect problems and terminate when necessary.
 def sh_safe(cmd)
-    begin
-        return sh(cmd)
-    rescue
-        echoerr $!
-        return false
-    end
+  begin
+    return sh(cmd)
+  rescue
+    error $!
+    return false
+  end
 end
 
 def do_link(src, dest)
-    if not (File.exist?(path_to_file) || File.symlink?(path_to_file))
-        sh_safe "ln -sf #{src} #{dest}"
-    end
+  if not (File.exist?(path_to_file) || File.symlink?(path_to_file))
+    sh_safe "ln -sf #{src} #{dest}"
+  end
 end