diff options
author | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-08-29 04:06:12 +0000 |
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committer | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-08-29 04:06:12 +0000 |
commit | 11dbedfaad4a9a9521ece2198a8dc491678b1902 (patch) | |
tree | 4806dc0ff0c3827ecc40921838c4507340cfdb3a /ruby_1_8_6/ext/digest/lib/digest.rb | |
parent | 29e8d8b439b34c2a394407dc598fc01d14be0c20 (diff) |
add tag v1_8_6_5001v1_8_6_5001
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_6_5001@13304 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ruby_1_8_6/ext/digest/lib/digest.rb')
-rw-r--r-- | ruby_1_8_6/ext/digest/lib/digest.rb | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/ruby_1_8_6/ext/digest/lib/digest.rb b/ruby_1_8_6/ext/digest/lib/digest.rb new file mode 100644 index 0000000000..0c4ee3c2cc --- /dev/null +++ b/ruby_1_8_6/ext/digest/lib/digest.rb @@ -0,0 +1,50 @@ +require 'digest.so' + +module Digest + def self.const_missing(name) + case name + when :SHA256, :SHA384, :SHA512 + lib = 'digest/sha2.so' + else + lib = File.join('digest', name.to_s.downcase) + end + + begin + require lib + rescue LoadError => e + raise LoadError, "library not found for class Digest::#{name} -- #{lib}", caller(1) + end + unless Digest.const_defined?(name) + raise NameError, "uninitialized constant Digest::#{name}", caller(1) + end + Digest.const_get(name) + end + + class ::Digest::Class + # creates a digest object and reads a given file, _name_. + # + # p Digest::SHA256.file("X11R6.8.2-src.tar.bz2").hexdigest + # # => "f02e3c85572dc9ad7cb77c2a638e3be24cc1b5bea9fdbb0b0299c9668475c534" + def self.file(name) + new.file(name) + end + end + + module Instance + # updates the digest with the contents of a given file _name_ and + # returns self. + def file(name) + File.open(name, "rb") {|f| + buf = "" + while f.read(16384, buf) + update buf + end + } + self + end + end +end + +def Digest(name) + Digest.const_get(name) +end |