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In Files

  • rubygems/package/digest_io.rb



Class/Module Index [+]



IO wrapper that creates digests of contents written to the IO it wraps.



Collected digests for wrapped writes.

  'SHA1'   => #<OpenSSL::Digest: [...]>,
  'SHA512' => #<OpenSSL::Digest: [...]>,

Public Class Methods

new(io, digests) click to toggle source

Creates a new DigestIO instance. Using ::wrap is recommended, see the ::wrap documentation for documentation of io and digests.

               # File rubygems/package/digest_io.rb, line 45
def initialize io, digests
  @io = io
  @digests = digests
wrap(io, digests) click to toggle source

Wraps io and updates digest for each of the digest algorithms in the digests Hash. Returns the digests hash. Example:

io =
digests = {
  'SHA1'   =>'SHA1'),
  'SHA512' =>'SHA512'),

Gem::Package::DigestIO.wrap io, digests do |digest_io|
  digest_io.write "hello"

digests['SHA1'].hexdigest   #=> "aaf4c61d[...]"
digests['SHA512'].hexdigest #=> "9b71d224[...]"
               # File rubygems/package/digest_io.rb, line 33
def self.wrap io, digests
  digest_io = new io, digests

  yield digest_io

  return digests

Public Instance Methods

write(data) click to toggle source

Writes data to the underlying IO and updates the digests

               # File rubygems/package/digest_io.rb, line 53
def write data
  result = @io.write data

  @digests.each do |_, digest|
    digest << data


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