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templates/new/mix.exs

defmodule <%= app_module %>.MixProject do
use Mix.Project
@target System.get_env("MIX_TARGET") || "host"
Mix.shell().info([
:green,
"""
Mix environment
MIX_TARGET: #{@target}
MIX_ENV: #{Mix.env()}
""",
:reset
])
def project do
[
app: :<%= app_name %>,
version: "0.1.0",
elixir: "<%= elixir_req %>",
target: @target,
archives: [nerves_bootstrap: "~> <%= bootstrap_vsn %>"],<%= if in_umbrella do %>
deps_path: "../../deps/#{@target}",
build_path: "../../_build/#{@target}",
config_path: "../../config/config.exs",
lockfile: "../../mix.lock.#{@target}",<% else %>
deps_path: "deps/#{@target}",
build_path: "_build/#{@target}",
lockfile: "mix.lock.#{@target}",<% end %>
build_embedded: Mix.env == :prod,
start_permanent: Mix.env == :prod,
aliases: aliases(@target),
deps: deps()
]
end
# Run "mix help compile.app" to learn about applications.
def application, do: application(@target)
# Specify target specific application configurations
# It is common that the application start function will start and supervise
# applications which could cause the host to fail. Because of this, we only
# invoke <%= app_module %>.start/2 when running on a target.
def application("host") do
[extra_applications: [:logger]]
end
def application(_target) do
[mod: {<%= app_module %>.Application, []}, extra_applications: [:logger]]
end
# Run "mix help deps" to learn about dependencies.
defp deps do
[<%= nerves_dep %>] ++ deps(@target)
end
# Specify target specific dependencies
defp deps("host"), do: []
defp deps(target) do
[
{:shoehorn, "~> <%= shoehorn_vsn %>"},
{:nerves_runtime, "~> <%= runtime_vsn %>"}
] ++ system(target)
end
<%= for target <- targets do %>
defp system("<%= target %>"), do: [{:<%= "nerves_system_#{target}" %>, ">= 0.0.0", runtime: false}]
<% end %>
defp system(target), do: Mix.raise "Unknown MIX_TARGET: #{target}"
# We do not invoke the Nerves Env when running on the Host
defp aliases("host"), do: []
defp aliases(_target) do
[
# Add custom mix aliases here
]
|> Nerves.Bootstrap.add_aliases()
end
end