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jgn/git-hash-blob-object

Created October 4, 2016 13:47
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git-hash-blob-object
#!/usr/bin/env ruby
# from https://stackoverflow.com/posts/24458934/revisions
require 'digest/sha1'
def git_hash(filename)
data = File.read(filename)
Digest::SHA1.hexdigest("blob #{data.bytesize.to_s}\0#{data}")
end
puts git_hash(ARGV[0])
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