Sha256: 53bae455ccb02678cd3a78e443e0e3cc5a3dd9091697b52e943a700aff76f01e
Contents?: true
Size: 1.47 KB
Versions: 48
Compression:
Stored size: 1.47 KB
Contents
# frozen_string_literal: true
module RuboCop
module Rails
# It loads db/schema.rb and return Schema object.
# Cops refers database schema information with this module.
module SchemaLoader
extend self
# It parses `db/schema.rb` and return it.
# It returns `nil` if it can't find `db/schema.rb`.
# So a cop that uses the loader should handle `nil` properly.
#
# @return [Schema, nil]
def load(target_ruby_version)
return @load if defined?(@load)
@load = load!(target_ruby_version)
end
def reset!
return unless instance_variable_defined?(:@load)
remove_instance_variable(:@load)
end
def db_schema_path
path = Pathname.pwd
until path.root?
schema_path = path.join('db/schema.rb')
return schema_path if schema_path.exist?
path = path.join('../').cleanpath
end
nil
end
private
def load!(target_ruby_version)
path = db_schema_path
return unless path
ast = parse(path, target_ruby_version)
Schema.new(ast)
end
def parse(path, target_ruby_version)
klass_name = :"Ruby#{target_ruby_version.to_s.sub('.', '')}"
klass = ::Parser.const_get(klass_name)
parser = klass.new(RuboCop::AST::Builder.new)
buffer = Parser::Source::Buffer.new(path, 1)
buffer.source = path.read
parser.parse(buffer)
end
end
end
end
Version data entries
48 entries across 43 versions & 5 rubygems