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# frozen_string_literal: true
module ActiveRecord
module Tasks # :nodoc:
class SQLiteDatabaseTasks # :nodoc:
delegate :connection, :establish_connection, to: ActiveRecord::Base
def initialize(configuration, root = ActiveRecord::Tasks::DatabaseTasks.root)
@configuration, @root = configuration, root
end
def create
raise DatabaseAlreadyExists if File.exist?(configuration["database"])
establish_connection configuration
connection
end
def drop
require "pathname"
path = Pathname.new configuration["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 purge
drop
rescue NoDatabaseError
ensure
create
end
def charset
connection.encoding
end
def structure_dump(filename, extra_flags)
args = []
args.concat(Array(extra_flags)) if extra_flags
args << configuration["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)
dbfile = configuration["database"]
flags = extra_flags.join(" ") if extra_flags
`sqlite3 #{flags} #{dbfile} < "#{filename}"`
end
private
def configuration
@configuration
end
def root
@root
end
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)
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
end
end
end
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