kmx.io/rbpkg

diff --git a/bin/rbpkg b/bin/rbpkg
index 9e4db14..7bbc485 100755
--- a/bin/rbpkg
+++ b/bin/rbpkg
@@ -53,6 +53,8 @@ def rbpkg(args)
     Rbpkg.clean_sources(args[1..])
   when "fetch"
     Rbpkg.fetch(args[1..])
+  when "pull"
+    Rbpkg.pull(args[1..])
   when "info"
     Rbpkg.info(args[1..])
   else
diff --git a/lib/rbpkg.rb b/lib/rbpkg.rb
index 326bfa8..0f467b4 100644
--- a/lib/rbpkg.rb
+++ b/lib/rbpkg.rb
@@ -79,6 +79,12 @@ module Rbpkg
     "#{log_dir}/#{name}_#{date}_#{$$}.log"
   end
 
+  def self.pull(repos)
+    repos.each do |name|
+      Repos.repo(name).pull()
+    end
+  end
+
   def self.src_dir
     "#{dir}/src"
   end
diff --git a/lib/rbpkg/repo.rb b/lib/rbpkg/repo.rb
index 1a47dba..7678748 100644
--- a/lib/rbpkg/repo.rb
+++ b/lib/rbpkg/repo.rb
@@ -16,8 +16,7 @@ class Rbpkg::Repo
   end
 
   def fetch
-    raise "must clone first" unless File.directory?(src_dir)
-    cmd "cd #{sh_quote(src_dir)} && git fetch"
+    cmd "cd #{sh_quote(src_dir!)} && git fetch"
   end
 
   def git_clone
@@ -49,10 +48,20 @@ class Rbpkg::Repo
     self.class.name.to_s.downcase.scan(/::([^:]*)$/)[0][0]
   end
 
+  def pull
+    cmd "cd #{sh_quote(src_dir!)} && git pull"
+  end
+
   def src_dir
     "#{Rbpkg.src_dir}/#{dir}"
   end
 
+  def src_dir!
+    path = src_dir
+    raise "must clone first" unless File.directory?(path)
+    path
+  end
+
   def src_parent_dir
     File.dirname(src_dir)
   end