Refactor checksumming

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/Library/Homebrew/checksums.rb b/Library/Homebrew/checksums.rb
new file mode 100644
index 000000000..defaa8bb1
--- /dev/null
+++ b/Library/Homebrew/checksums.rb
@@ -0,0 +1,22 @@
+class Checksum
+  attr_reader :hash_type, :hexdigest
+
+  TYPES = [:md5, :sha1, :sha256]
+
+  def initialize type=:sha1, val=nil
+    @hash_type = type
+    @hexdigest = val.to_s
+  end
+
+  def empty?
+    @hexdigest.empty?
+  end
+
+  def to_s
+    @hexdigest
+  end
+
+  def == other
+    @hash_type == other.hash_type and @hexdigest == other.hexdigest
+  end
+end