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module Methadone
# Standard exception you can throw to exit with a given
# status code. Generally, you should prefer Methadone::Main#exit_now! over using
# this directly, however you may wish to create a rich hierarchy of exceptions that extend from
# this in your app, so this is provided if you wish to do so.
class Error < StandardError
attr_reader :exit_code
# Create an Error with the given status code and message
def initialize(exit_code,message=nil)
super(message)
@exit_code = exit_code
end
end
# Thrown by certain methods when an externally-called command exits nonzero
class FailedCommandError < Error
# The command that caused the failure
attr_reader :command
# exit_code:: exit code of the command that caused this
# command:: the entire command-line that caused this
# custom_error_message:: an error message to show the user instead of the boilerplate one. Useful
# for allowing this exception to bubble up and exit the program, but to give
# the user something actionable.
def initialize(exit_code,command,custom_error_message = nil)
error_message = String(custom_error_message).empty? ? "Command '#{command}' exited #{exit_code}" : custom_error_message
super(exit_code,error_message)
@command = command
end
end
end
Version data entries
29 entries across 29 versions & 2 rubygems