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@@ -33,7 +33,7 @@
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 MigrationConcordance works by taking a snapshot of the state of an appliation's migrations every
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 time you run "rake db:migrate". It creates a file in db/migration_snapshot.yml that holds a list
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-of all current migrations and their SHA-1 hashes. Therefore, if you migrate to a migration that is
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+of all current migrations and their MD5 hashes. Therefore, if you migrate to a migration that is
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 not the latest (using rake db:migrate VERSION=<version>), you won't get any more notifications
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 even if you aren't on the latest version. It assumes you know what you are doing and won't keep
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 nagging you to migrate after you've migrated somewhere already.

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@@ -1,3 +1,4 @@
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+require 'digest/md5'
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 module ActiveRecord
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   class Migrator
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     class << self
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@@ -43,7 +44,7 @@
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         files = Dir[File.join(migrations_path, "[0-9]*_*.rb")].collect { |n| File.basename(n) }
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         snapshot = {}
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         files.each do |file|
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-          snapshot[File.basename(file, ".rb")] = Digest::SHA1.hexdigest(File.read(File.join(migrations_path, file)))
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+          snapshot[File.basename(file, ".rb")] = Digest::MD5.hexdigest(File.read(File.join(migrations_path, file)))
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         end
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         snapshot
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       end