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

# SPDX-FileCopyrightText: 2022 Jon Carstens

# SPDX-FileCopyrightText: 2022 Udo Schneider

#

# SPDX-License-Identifier: Apache-2.0

#

defmodule Mix.Tasks.Nerves.Artifact.Details do

  @shortdoc "Prints Nerves artifact details"

  @moduledoc """

  Prints Nerves artifact details.



  This displays various details.



  ## Examples



      $ mix nerves.artifact.details nerves_system_rpi0



  If the command is called without the package name,

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

  """

  use Mix.Task



  import Mix.Nerves.IO



  alias Nerves.Artifact



  @recursive true



  @impl Mix.Task

  def run(argv) do

    debug_info("Nerves.Artifact.Details start")



    {opts, argv} = OptionParser.parse!(argv, strict: [copy_fwup_conf: :string])



    # We should have attempted precompile before this, but run it

    # here just in case. Noop if it has already been run.

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



    {package_name, package_path} =

      case argv do

        [p | _] ->

          {String.to_atom(p), Path.join(Mix.Project.deps_path(), p)}



        _ ->

          {Mix.Project.config()[:app], File.cwd!()}

      end



    package =

      case Nerves.Env.ensure_loaded(package_name, package_path) do

        {:ok, package} -> package

        {:error, _} -> Mix.raise("Could not find Nerves package #{package_name} in env")

      end



    if cp_path = opts[:copy_fwup_conf] do

      copy_fwup_conf(package, cp_path)

    else

      print_details(package)

    end



    debug_info("Nerves.Artifact.Details end")

  end



  defp copy_fwup_conf(package, cp_path) do

    fwup_conf = Path.join([Artifact.dir(package), "images", "fwup.conf"])

    File.exists?(fwup_conf) || Mix.raise("No fwup.conf exists for #{package.name}")



    cp_path = Path.expand(cp_path)

    cp_path = if File.dir?(cp_path), do: Path.join(cp_path, "fwup.conf"), else: cp_path

    File.cp!(fwup_conf, cp_path)

    Mix.shell().info("Copied #{fwup_conf} -> #{cp_path}")

  end



  defp print_details(package) do

    Mix.shell().info("""

    Version:            #{package.version}

    Checksum:           #{Artifact.checksum(package)}

    Checksum Short:     #{Artifact.checksum(package, short: Artifact.__checksum_short_length__())}

    Name:               #{Artifact.name(package)}

    Download Name:      #{Artifact.download_name(package)}

    Download File Name: #{Artifact.download_name(package)}#{Artifact.ext(package)}

    Download Path:      #{Artifact.download_path(package)}

    Sites:              #{inspect(Keyword.get(package.config, :artifact_sites, []))}

    Base Directory:     #{Artifact.base_dir()}

    Path:               #{Artifact.dir(package)}

    Build Path:         #{Artifact.build_path(package)}

    """)

  end

end