class ActiveRecord::Tasks::SQLiteDatabaseTasks

:nodoc:
:nodoc:

def self.using_database_configurations?

def self.using_database_configurations?
  true
end

def charset

def charset
  connection.encoding
end

def create

def create
  raise DatabaseAlreadyExists if File.exist?(db_config.database)
  establish_connection(db_config)
  connection
end

def drop

def drop
  require "pathname"
  path = Pathname.new(db_config.database)
  file = path.absolute? ? path.to_s : File.join(root, path)
  FileUtils.rm(file)
rescue Errno::ENOENT => error
  raise NoDatabaseError.new(error.message)
end

def initialize(db_config, root = ActiveRecord::Tasks::DatabaseTasks.root)

def initialize(db_config, root = ActiveRecord::Tasks::DatabaseTasks.root)
  @db_config = db_config
  @root = root
end

def purge

def purge
  drop
rescue NoDatabaseError
ensure
  create
end

def run_cmd(cmd, args, out)

def run_cmd(cmd, args, out)
  fail run_cmd_error(cmd, args) unless Kernel.system(cmd, *args, out: out)
end

def run_cmd_error(cmd, args)

def run_cmd_error(cmd, args)
  msg = +"failed to execute:\n"
  msg << "#{cmd} #{args.join(' ')}\n\n"
  msg << "Please check the output above for any errors and make sure that `#{cmd}` is installed in your PATH and has proper permissions.\n\n"
  msg
end

def structure_dump(filename, extra_flags)

def structure_dump(filename, extra_flags)
  args = []
  args.concat(Array(extra_flags)) if extra_flags
  args << db_config.database
  ignore_tables = ActiveRecord::SchemaDumper.ignore_tables
  if ignore_tables.any?
    condition = ignore_tables.map { |table| connection.quote(table) }.join(", ")
    args << "SELECT sql FROM sqlite_master WHERE tbl_name NOT IN (#{condition}) ORDER BY tbl_name, type DESC, name"
  else
    args << ".schema"
  end
  run_cmd("sqlite3", args, filename)
end

def structure_load(filename, extra_flags)

def structure_load(filename, extra_flags)
  flags = extra_flags.join(" ") if extra_flags
  `sqlite3 #{flags} #{db_config.database} < "#{filename}"`
end