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-rw-r--r--ext/digest/lib/digest.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/ext/digest/lib/digest.rb b/ext/digest/lib/digest.rb
index 7703faa8eb..e8f54eae59 100644
--- a/ext/digest/lib/digest.rb
+++ b/ext/digest/lib/digest.rb
@@ -7,6 +7,10 @@ module Digest
autoload "SHA512", "digest/sha2"
class Base
+ # creates a digest object and read given file, _name_.
+ #
+ # p Digest::SHA256.file("X11R6.8.2-src.tar.bz2").hexdigest
+ # # => "f02e3c85572dc9ad7cb77c2a638e3be24cc1b5bea9fdbb0b0299c9668475c534"
def self.file(name)
digest = self.new
File.open(name) {|f|