Class: Skeema::Ripper

Inherits:
Object
  • Object
show all
Defined in:
lib/skeema/ripper.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.parse(filename) ⇒ Object 



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# File 'lib/skeema/ripper.rb', line 34

def self.parse(filename)
  new.parse(filename).schema
end

Instance Method Details

#parse(filename) ⇒ Object 



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# File 'lib/skeema/ripper.rb', line 5

def parse(filename)
  sexp = ::Ripper.sexp IO.read(filename)

  # yay, magic!
  schema_commands = sexp[1][0][2][2]
  @schema = schema_commands.inject({}) do |s, command|
    if command.length > 1
      command_name = command[1][1][1]

      if command_name == "create_table"
        table_name = command[1][2][1][0][1][1][1].to_sym
        columns    = command[2][2].each.map do |col_command|
          col_command[4][1][0][1][1][1].to_sym
        end

        s.merge!(table_name => columns)
      end
    end

    s
  end

  self
end

#schema ⇒ Object 



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# File 'lib/skeema/ripper.rb', line 30

def schema
  @schema
end