uf2tool is included in device avm

[petermm]

  def start do
    :uf2tool.main([])
    |> IO.inspect()
  end

AtomVM init.
I (1419) sys: Loaded BEAM partition main.avm at address 0x250000 (size=1048576 bytes)
Starting application...
UF2 Tool: create or join UF2 binaries, for example for Raspberry Pi Pico
:ok
AtomVM finished with return value: ok

so we need to add at least runtime: false, if not only: :dev as well in mix.exs..

exatomvm/lib/mix/tasks/packbeam.ex

Line 163 in cbd2fb6

if Keyword.get(dep.opts, :runtime, true) do

[UncleGrumpy]

Good catch! It did not even cross my mind that could be a possibility when I wrote the task. We should double check that the pico flash, and stm32 flash tasks are not in there too, since I also contributed those. ;-)

[petermm]

uf2tool is there because it's a dep.

Believe "Mix is not part of the runtime env", which is also why we have that deprecation/migration Mix.Config->Config afaik, so they should not be there..

But we should of course check ;-)

[UncleGrumpy]

Believe "Mix is not part of the runtime env", which is also why we have that deprecation/migration Mix.Config->Config afaik, so they should not be there..

Another reason we might actually want to keep the current Mix.Config... it's guaranteed not to leek into the runtime environment.

[petermm]

these all currently works:

    ExAtomVM.hello()
    |> IO.inspect()

    ExAtomVM.PackBEAM.module_info()
    |> IO.inspect()

    Mix.Tasks.Atomvm.Check.module_info()
    |> IO.inspect()

My current thought is install instructions should include runtime: false eg:

{:exatomvm, git: "https://github.com/atomvm/ExAtomVM/", runtime: false},

that correctly gives you:

error: following modules or functions are not available on AtomVM:
* Elixir.ExAtomVM.PackBEAM:module_info/0
* Elixir.ExAtomVM:hello/0
* Elixir.Mix.Tasks.Atomvm.Check:module_info/0