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@@ -27,6 +27,64 @@ module Mack
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       Mack::Database.establish_connection(env)
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       drop_database(repis)
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     end
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+
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+    # abcs = ActiveRecord::Base.configurations
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+    # case abcs[RAILS_ENV]["adapter"]
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+    # when "mysql", "oci", "oracle"
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+    #   ActiveRecord::Base.establish_connection(abcs[RAILS_ENV])
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+    #   File.open("db/#{RAILS_ENV}_structure.sql", "w+") { |f| f << ActiveRecord::Base.connection.structure_dump }
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+    # when "postgresql"
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+    #   ENV['PGHOST']     = abcs[RAILS_ENV]["host"] if abcs[RAILS_ENV]["host"]
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+    #   ENV['PGPORT']     = abcs[RAILS_ENV]["port"].to_s if abcs[RAILS_ENV]["port"]
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+    #   ENV['PGPASSWORD'] = abcs[RAILS_ENV]["password"].to_s if abcs[RAILS_ENV]["password"]
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+    #   search_path = abcs[RAILS_ENV]["schema_search_path"]
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+    #   search_path = "--schema=#{search_path}" if search_path
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+    #   `pg_dump -i -U "#{abcs[RAILS_ENV]["username"]}" -s -x -O -f db/#{RAILS_ENV}_structure.sql #{search_path} #{abcs[RAILS_ENV]["database"]}`
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+    #   raise "Error dumping database" if $?.exitstatus == 1
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+    # when "sqlite", "sqlite3"
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+    #   dbfile = abcs[RAILS_ENV]["database"] || abcs[RAILS_ENV]["dbfile"]
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+    #   `#{abcs[RAILS_ENV]["adapter"]} #{dbfile} .schema > db/#{RAILS_ENV}_structure.sql`
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+    # when "sqlserver"
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+    #   `scptxfr /s #{abcs[RAILS_ENV]["host"]} /d #{abcs[RAILS_ENV]["database"]} /I /f db\\#{RAILS_ENV}_structure.sql /q /A /r`
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+    #   `scptxfr /s #{abcs[RAILS_ENV]["host"]} /d #{abcs[RAILS_ENV]["database"]} /I /F db\ /q /A /r`
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+    # when "firebird"
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+    #   set_firebird_env(abcs[RAILS_ENV])
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+    #   db_string = firebird_db_string(abcs[RAILS_ENV])
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+    #   sh "isql -a #{db_string} > db/#{RAILS_ENV}_structure.sql"
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+    # else
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+    #   raise "Task not supported by '#{abcs["test"]["adapter"]}'"
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+    # end
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+    
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+    def self.structure_dump(env = Mack.env, repis = :default)
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+      adapter = repository(repis).adapter
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+      uri = adapter.uri
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+      structure = ""
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+      output_file = File.join(Mack.root, "db", "#{env}_#{repis}_schema_structure.sql")
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+      case adapter.class.name
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+        when /Mysql/
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+          sql = "SHOW FULL TABLES WHERE Table_type = 'BASE TABLE'"
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+          sql = "SHOW TABLES"
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+          adapter.query(sql).each do |res|
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+            show = adapter.query("SHOW CREATE TABLE #{res}").first
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+            structure += show.attributes["create table".to_sym]
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+            structure += ";\n\n"
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+          end
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+          # puts structure
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+          File.open(output_file, "w") {|f| f.puts structure}
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+        when /Postgres/
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+          `pg_dump -i -U "#{uri.user}" -s -x -O -f #{output_file} #{uri.basename}`
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+          # setup_temp(uri, "postgres")
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+          # repository(:tmp) do |repo|
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+          #   puts "Creating (PostgreSQL): #{uri.basename}"
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+          #   repo.adapter.execute "CREATE DATABASE #{uri.basename} ENCODING = 'utf8'"
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+          # end
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+        when /Sqlite3/
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+          db_dir = File.join(Mack.root, "db")
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+          `sqlite3 #{File.join(db_dir, uri.basename)} .schema > #{output_file}`
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+        else
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+          raise "Task not supported for '#{repository(repis).adapter.class.name}'"
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+      end
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+    end
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     private
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     def self.setup_temp(uri, adapter)

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@@ -37,6 +37,15 @@ namespace :db do
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     DataMapper::MigrationRunner.migrations.clear
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   end
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+  namespace :structure do
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+    
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+    desc "Dump the database structure to a SQL file"
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+    task :dump => "mack:environment" do
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+      Mack::Database.structure_dump
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+    end
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+    
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+  end
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+  
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   private
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   def migration_files