mix.exs

defmodule ExtendedTypes.MixProject do
  use Mix.Project

  @repo_url "https://github.com/eksperimental/extended_types"

  def project do
    [
      app: :extended_types,
      version: "0.1.0",
      elixir: "~> 1.13",
      start_permanent: Mix.env() == :prod,
      deps: deps(),
      aliases: aliases(),
      dialyzer: [ignore_warnings: "dialyzer.ignore-warnings"],

      # Docs
      name: "ExtendedTypes",
      source_url: @repo_url,
      homepage_url: @repo_url,
      docs: docs()
    ]
  end

  # Run "mix help compile.app" to learn about applications.
  def application do
    [
      extra_applications: [:logger]
    ]
  end

  defp aliases do
    [
      validate: [
        "format --check-formatted",
        "deps.unlock --check-unused",
        "compile",
        "compile --warnings-as-errors",
        "dialyzer",
        "docs",
        "credo --ignore Credo.Check.Design.TagTODO"
      ],
      all: [
        "format",
        "validate",
        fn _args ->
          case System.cmd("mix", ~w[test]) do
            {_, 0} ->
              true

            {output, _} ->
              IO.puts(output)
              raise("Test failed.")
          end
        end
      ]
    ]
  end

  # Run "mix help deps" to learn about dependencies.
  defp deps do
    [
      {:dialyxir, "~> 1.0", only: [:dev], runtime: false},
      {:credo, "~> 1.6", only: [:dev], runtime: false},
      # {:ex_doc, "~> 0.26", only: :dev, runtime: false},
      {:ex_doc, git: "https://github.com/elixir-lang/ex_doc.git", only: :dev, runtime: false}
    ]
  end

  defp docs do
    [
      # The main page in the docs
      main: "ExtendedTypes",
      extras: [
        "README.md": [filename: "readme", title: "Readme"],
        # "NOTICE": [filename: "notice", title: "Notice"],
        "LICENSES/LICENSE.CC0-1.0.txt": [
          filename: "license_CC0-1.0",
          title: "Creative Commons Zero Universal license"
        ],
        "LICENSES/LICENSE.MIT-0.txt": [
          filename: "license_MIT-0",
          title: "MIT No Attribution License"
        ],
        "LICENSES/LICENSE.0BSD.txt": [filename: "license_0BSD", title: "BSD Zero Clause License"]
      ],
      source_ref: revision()
    ]
  end

  # Originally taken from: https://github.com/elixir-lang/elixir/blob/2b0abcebbe9acee4a103c9d02c6bae707f0e9e73/lib/elixir/lib/system.ex#L1019
  # Tries to run "git rev-parse --short=7 HEAD". In the case of success returns
  # the short revision hash. If that fails, returns an empty string.
  defp revision do
    null =
      case :os.type() do
        {:win32, _} -> 'NUL'
        _ -> '/dev/null'
      end

    'git rev-parse --short=7 HEAD 2> '
    |> Kernel.++(null)
    |> :os.cmd()
    |> strip
  end

  defp strip(iodata) do
    :re.replace(iodata, "^[\s\r\n\t]+|[\s\r\n\t]+$", "", [:global, return: :binary])
  end
end