diff options
Diffstat (limited to 't/bin/sha1sum.rb')
-rwxr-xr-x | t/bin/sha1sum.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/t/bin/sha1sum.rb b/t/bin/sha1sum.rb new file mode 100755 index 0000000..b602e79 --- /dev/null +++ b/t/bin/sha1sum.rb @@ -0,0 +1,23 @@ +#!/usr/bin/env ruby +# -*- encoding: binary -*- + +# Reads from stdin and outputs the SHA1 hex digest of the input this is +# ONLY used as a last resort, our test code will try to use sha1sum(1), +# openssl(1), or gsha1sum(1) before falling back to using this. We try +# all options first because we have a strong and healthy distrust of our +# Ruby abilities in general, and *especially* when it comes to +# understanding (and trusting the implementation of) Ruby 1.9 encoding. + +require 'digest/sha1' +$stdout.sync = $stderr.sync = true +$stdout.binmode +$stdin.binmode +bs = 16384 +digest = Digest::SHA1.new +if buf = $stdin.read(bs) + begin + digest.update(buf) + end while $stdin.read(bs, buf) +end + +$stdout.syswrite("#{digest.hexdigest}\n") |