class Chef::Digester
Public Class Methods
checksum_for_file(*args)
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# File lib/chef/digester.rb, line 30 def self.checksum_for_file(*args) instance.checksum_for_file(*args) end
generate_md5_checksum_for_file(*args)
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# File lib/chef/digester.rb, line 46 def self.generate_md5_checksum_for_file(*args) instance.generate_md5_checksum_for_file(*args) end
instance()
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# File lib/chef/digester.rb, line 26 def self.instance @instance ||= new end
Public Instance Methods
checksum_for_file(file)
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# File lib/chef/digester.rb, line 38 def checksum_for_file(file) generate_checksum(file) end
generate_checksum(file)
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# File lib/chef/digester.rb, line 42 def generate_checksum(file) checksum_file(file, Digest::SHA256.new) end
generate_md5_checksum(io)
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# File lib/chef/digester.rb, line 54 def generate_md5_checksum(io) checksum_io(io, Digest::MD5.new) end
generate_md5_checksum_for_file(file)
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# File lib/chef/digester.rb, line 50 def generate_md5_checksum_for_file(file) checksum_file(file, Digest::MD5.new) end
validate_checksum(*args)
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# File lib/chef/digester.rb, line 34 def validate_checksum(*args) self.class.validate_checksum(*args) end
Private Instance Methods
checksum_file(file, digest)
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# File lib/chef/digester.rb, line 60 def checksum_file(file, digest) File.open(file, 'rb') { |f| checksum_io(f, digest) } end
checksum_io(io, digest)
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# File lib/chef/digester.rb, line 64 def checksum_io(io, digest) while chunk = io.read(1024 * 8) digest.update(chunk) end digest.hexdigest end