1 files changed, 87 insertions, 0 deletions
diff --git a/lib/rubygems/source_list.rb b/lib/rubygems/source_list.rb
new file mode 100644
index 0000000000..7bd8ef0b78
--- /dev/null
+++ b/lib/rubygems/source_list.rb
@@ -0,0 +1,87 @@
+require 'rubygems/source'
+
+class Gem::SourceList
+  def initialize
+    @sources = []
+  end
+
+  attr_reader :sources
+
+  def self.from(ary)
+    list = new
+
+    if ary
+      ary.each do |x|
+        list << x
+      end
+    end
+
+    return list
+  end
+
+  def initialize_copy(other)
+    @sources = @sources.dup
+  end
+
+  def <<(obj)
+    src = case obj
+          when URI
+            Gem::Source.new(obj)
+          when Gem::Source
+            obj
+          else
+            Gem::Source.new(URI.parse(obj))
+          end
+
+    @sources << src
+    src
+  end
+
+  def replace(other)
+    @sources.clear
+
+    other.each do |x|
+      self << x
+    end
+
+    self
+  end
+
+  def each
+    @sources.each { |s| yield s.uri.to_s }
+  end
+
+  def each_source(&b)
+    @sources.each(&b)
+  end
+
+  def ==(other)
+    to_a == other
+  end
+
+  def to_a
+    @sources.map { |x| x.uri.to_s }
+  end
+
+  alias_method :to_ary, :to_a
+
+  def first
+    @sources.first
+  end
+
+  def include?(other)
+    if other.kind_of? Gem::Source
+      @sources.include? other
+    else
+      @sources.find { |x| x.uri.to_s == other.to_s }
+    end
+  end
+
+  def delete(uri)
+    if uri.kind_of? Gem::Source
+      @sources.delete uri
+    else
+      @sources.delete_if { |x| x.uri.to_s == uri.to_s }
+    end
+  end
+end