View Source Credo.Execution.Task behaviour (Credo v1.7.5)
A Task is a step in a pipeline, which is given an Credo.Execution struct and must return one as well.
Tasks in a pipeline are only called if they are not "halted" (see Credo.Execution.halt/2).
It implements a call/1 or call/2 callback, which is called with the Credo.Execution struct
as first parameter (and the Task's options as the second in case of call/2).
Summary
Callbacks
Is called by the pipeline and contains the Task's actual code.
Works like call/1, but receives the options, which are optional when registering the Task, as second argument.
Gets called if call holds the execution via Credo.Execution.halt/1 or Credo.Execution.halt/2.
Works like error/1, but receives the options, which were given during pipeline registration, as second argument.
Callbacks
@callback call(exec :: Credo.Execution.t()) :: Credo.Execution.t()
Is called by the pipeline and contains the Task's actual code.
defmodule FooTask do
use Credo.Execution.Task
def call(exec) do
IO.inspect(exec)
end
endThe call/1 functions receives an exec struct and must return a (modified) Credo.Execution.
@callback call(exec :: Credo.Execution.t(), opts :: Keyword.t()) :: Credo.Execution.t()
Works like call/1, but receives the options, which are optional when registering the Task, as second argument.
defmodule FooTask do
use Credo.Execution.Task
def call(exec, opts) do
IO.inspect(opts)
exec
end
end@callback error(exec :: Credo.Execution.t()) :: Credo.Execution.t()
Gets called if call holds the execution via Credo.Execution.halt/1 or Credo.Execution.halt/2.
@callback error(exec :: Credo.Execution.t(), opts :: Keyword.t()) :: Credo.Execution.t()
Works like error/1, but receives the options, which were given during pipeline registration, as second argument.