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nerves

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nerves lib mix tasks nerves.artifact.ex
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lib/mix/tasks/nerves.artifact.ex 

defmodule Mix.Tasks.Nerves.Artifact do

  use Mix.Task



  import Mix.Nerves.IO



  require Logger



  @moduledoc """

    Create an artifact for a specified Nerves package.



    ## Command line options

      

      `--path <path>`: The location where you want the archive to be placed.

        Default: $NERVES_DL_DIR || ~/.nerves/dl



    ## Example



      $ mix nerves.artifact nerves_system_rpi0



    If the command is called without the package name, 

    Nerves.Project.config()[:app] will be used by default.



      $ mix nerves.artifact --path /tmp

  """



  @shortdoc "Nerves create artifact"

  @recursive true



  @switches [path: :string]



  def run(argv) do

    # We need to make sure the the Nerves env has been set up.

    # This allows the task to be called from a project level that 

    # does not include aliases to nerves_bootstrap

    Mix.Task.run("nerves.precompile", [])



    {package_name, argv} =

      case argv do

        [] ->

          {to_string(Mix.Project.config()[:app]), argv}



        ["-" <> _arg | _] ->

          {to_string(Mix.Project.config()[:app]), argv}



        [package_name | argv] ->

          {package_name, argv}

      end



    debug_info("Nerves.Artifact start")



    {opts, _, _} = OptionParser.parse(argv, switches: @switches)



    package_name = String.to_atom(package_name)



    package = Nerves.Env.package(package_name)

    toolchain = Nerves.Env.toolchain()



    cond do

      package == nil ->

        Mix.raise("Could not find Nerves package #{package_name} in env")



      Nerves.Artifact.stale?(package) ->

        Mix.raise("Your package sources are stale. Please run mix compile first.")



      true ->

        Nerves.Artifact.archive(package, toolchain, opts)

    end



    debug_info("Nerves.Artifact end")

  end

end