53 lines
1.7 KiB
Ruby
53 lines
1.7 KiB
Ruby
# redis-sha1.rb - Copyright (C) 2009 Salvatore Sanfilippo
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# BSD license, See the COPYING file for more information.
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#
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# Performs the SHA1 sum of the whole datset.
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# This is useful to spot bugs in persistence related code and to make sure
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# Slaves and Masters are in SYNC.
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#
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# If you hack this code make sure to sort keys and set elements as this are
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# unsorted elements. Otherwise the sum may differ with equal dataset.
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require 'rubygems'
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require 'redis'
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require 'digest/sha1'
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def redisSha1(opts={})
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sha1=""
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r = Redis.new(opts)
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r.keys('*').sort.each{|k|
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vtype = r.type?(k)
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if vtype == "string"
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len = 1
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sha1 = Digest::SHA1.hexdigest(sha1+k)
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sha1 = Digest::SHA1.hexdigest(sha1+r.get(k))
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elsif vtype == "list"
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len = r.llen(k)
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if len != 0
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sha1 = Digest::SHA1.hexdigest(sha1+k)
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sha1 = Digest::SHA1.hexdigest(sha1+r.list_range(k,0,-1).join("\x01"))
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end
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elsif vtype == "set"
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len = r.scard(k)
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if len != 0
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sha1 = Digest::SHA1.hexdigest(sha1+k)
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sha1 = Digest::SHA1.hexdigest(sha1+r.set_members(k).to_a.sort.join("\x02"))
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end
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elsif vtype == "zset"
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len = r.zcard(k)
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if len != 0
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sha1 = Digest::SHA1.hexdigest(sha1+k)
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sha1 = Digest::SHA1.hexdigest(sha1+r.zrange(k,0,-1).join("\x01"))
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end
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end
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# puts "#{k} => #{sha1}" if len != 0
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}
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sha1
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end
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host = ARGV[0] || "127.0.0.1"
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port = ARGV[1] || "6379"
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db = ARGV[2] || "0"
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puts "Performing SHA1 of Redis server #{host} #{port} DB: #{db}"
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p "Dataset SHA1: #{redisSha1(:host => host, :port => port.to_i, :db => db)}"
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