action

func RollbackOnError ¶ added in v0.8.0

func RollbackOnError(err *error, action Action)

RollbackOnError is supposed to be used together with defer:

defer action.RollbackOnError(&err, action)

Then it is visible why *error is being passed in. The args are bound when this line is encountered, so it would not be set to a non-nil error in case the error is set later. That is why we pass a pointer so that err can be checked when the deferred function is actually called.

func RollbackTaskOnError ¶ added in v0.8.0

func RollbackTaskOnError(err *error, task string, action Action)

RollbackTaskOnError does the same thing as RollbackOnError, but it also informs the user that the given task is being reverted.