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drab
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0.1.0
Remote controlled frontend framework for Phoenix.
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lib/mix/tasks/drab.gen.commander.ex
defmodule Mix.Tasks.Drab.Gen.Commander do
use Mix.Task
@shortdoc "Generates a Drab Commander"
@moduledoc """
Generates a Drab commander.
mix drab.gen.commander Name
This will generate a module NameCommander in web/commanders, if and only if NameController is already present.
"""
def run(args) do
[module] = validate_args!(args)
binding = Mix.Phoenix.inflect(module)
path = binding[:path]
# Drab requires Phoenix, so I can use its brilliant helpers
Mix.Phoenix.check_module_name_availability!(binding[:module] <> "Commander")
check_if_controller_exists!(path, binding[:module])
Mix.Phoenix.copy_from paths(), "priv/templates/", "", binding, [
{:eex, "drab.gen.commander.ex.eex", "web/commanders/#{path}_commander.ex"}
]
Mix.shell.info """
Add the following line to your #{binding[:module]}Controller:
use Drab.Controller
"""
end
defp check_if_controller_exists!(path, module) do
controller_file = "web/controllers/#{path}_controller.ex"
unless File.exists?(controller_file) do
unless Mix.shell.yes?("Can't find corresponding #{module}Controller in #{controller_file}. Proceed? ") do
Mix.raise "Aborted"
end
end
end
defp validate_args!(args) do
unless length(args) == 1 do
Mix.raise """
mix drab.gen.commander expects module name:
mix drab.gen.commander Name
"""
end
args
end
defp paths do
[".", :drab]
end
end