The task which has a second name with underscore (compile.yo_yo) could not be found

[Zatvobor]

GIVEN:
There are three identical task definitions

use Mix.Task

@shortdoc "Compile Dynamo source files"

def run(_) do
IO.puts @shortdoc
end

AND:
$ mix compile
=> Compiled lib/mix/tasks/yo.ex
=> Compiled lib/mix/tasks/compile.yo_yo.ex
=> Compiled lib/mix/tasks/compile.yo.ex

WHEN:
$ mix yo
=> Compile Dynamo source files

WHEN:
$ mix complile.yo
=> Compile Dynamo source files

BUT:

$ mix complile.yo_yo
=> The task compile.yo_yo could not be found

[josevalim]

Just for curiosity, which module names were you using?

[josevalim]

In any case, If you want to define a task compile.yo_yo, you need to define a module:

defmodule Compile.Yo_Yo

Let me know if you find further issues. :)

[Zatvobor]

Something wrong with it.

I want to have the mix task which named as a compile.yo_yo

• Mix.Tasks.Compile.Yo_Yo -> mix compile.yo_Yo
• Mix.Tasks.Compile.YoYo -> mix yoYo

As for me it looks like a bug where expected result should be:

• mix/tasks/compile.yo_yo.ex
• defmodule Mix.Tasks.Compile.YoYo
• mix compile.yo_yo

I'll fix that if you agree

[josevalim]

Ops, sorry. You are correct. The module name should be Compile.Yo_yo. The reason why we don't support Compile.YoYo is because we haven't decided if YoYo should translate to yo_yo or yo-yo which is more common for command lines.

[Zatvobor]

good