Declarative DSL for defining CLI commands.

Usage

defmodule MyApp.CLI do
  use Alaja.CLI.Definition, otp_app: :my_app

  command "deploy", "Deploy to production" do
    flag :env, :string, default: "staging", values: ~w(staging production)
    flag :force, :boolean, default: false

    run fn opts ->
      IO.puts("Deploying to " <> opts.env)
      if opts.force, do: IO.puts("Forced mode!")
    end
  end

  subcommand "config", "Manage configuration" do
    command "get", "Read a value" do
      argument :key, :string, required: true
      run fn opts -> IO.inspect(opts.key) end
    end
  end
end

Structure

The DSL generates a command map with the following shape:

%{
  name: "deploy",
  description: "Deploy to production",
  flags: [...],
  arguments: [...],
  subcommands: %{},
  run: function
}