1 files changed, 33 insertions, 12 deletions
diff --git a/lib/puppet/provider/package/gem.rb b/lib/puppet/provider/package/gem.rb
index bb09bc5b0..133243c86 100755
--- a/lib/puppet/provider/package/gem.rb
+++ b/lib/puppet/provider/package/gem.rb
@@ -1,9 +1,12 @@
 require 'puppet/provider/package'
+require 'uri'
 
 # Ruby gems support.
 Puppet::Type.type(:package).provide :gem, :parent => Puppet::Provider::Package do
-    desc "Ruby Gem support.  By default uses remote gems, but you can specify
-        the path to a local gem via ``source``."
+    desc "Ruby Gem support.  If a URL is passed via ``source``, then that URL is used as the
+         remote gem repository; if a source is present but is not a valid URL, it will be
+         interpreted as the path to a local gem file.  If source is not present at all,
+         the gem will be installed from the default gem repositories."
 
     has_feature :versionable
 
@@ -65,20 +68,38 @@ Puppet::Type.type(:package).provide :gem, :parent => Puppet::Provider::Package d
     end
 
     def install(useversion = true)
-        command = ["install"]
-        if (! @resource.should(:ensure).is_a? Symbol) and useversion
-            command << "-v" << @resource.should(:ensure)
+        command = [command(:gemcmd), "install"]
+        if (! resource[:ensure].is_a? Symbol) and useversion
+            command << "-v" << resource[:ensure]
         end
         # Always include dependencies
         command << "--include-dependencies"
 
-        if source = @resource[:source]
-            command << source
+        if source = resource[:source]
+            begin
+                uri = URI.parse(source)
+            rescue => detail
+                fail "Invalid source '%s': %s" % [uri, detail]
+            end
+
+            case uri.scheme
+            when nil: 
+                # no URI scheme => interpret the source as a local file
+                command << source
+            when /file/i
+                command << uri.path
+            when 'puppet'
+                # we don't support puppet:// URLs (yet)
+                raise Puppet::Error.new("puppet:// URLs are not supported as gem sources")              
+            else
+                # interpret it as a gem repository
+                command << "--source" << "#{source}" << resource[:name]
+            end
         else
-            command << @resource[:name]
+            command << resource[:name]
         end
 
-        output = gemcmd(*command)
+        output = execute(command)
         # Apparently some stupid gem versions don't exit non-0 on failure
         if output.include?("ERROR")
             self.fail "Could not install: %s" % output.chomp
@@ -87,17 +108,17 @@ Puppet::Type.type(:package).provide :gem, :parent => Puppet::Provider::Package d
 
     def latest
         # This always gets the latest version available.
-        hash = self.class.gemlist(:justme => @resource[:name])
+        hash = self.class.gemlist(:justme => resource[:name])
 
         return hash[:ensure]
     end
 
     def query
-        self.class.gemlist(:justme => @resource[:name], :local => true)
+        self.class.gemlist(:justme => resource[:name], :local => true)
     end
 
     def uninstall
-        gemcmd "uninstall", "-x", "-a", @resource[:name]
+        gemcmd "uninstall", "-x", "-a", resource[:name]
     end
 
     def update