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nerves_bootstrap
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Nerves mix integration bootstrap and new project generator
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Files
lib/mix/tasks/nerves/loadpaths.ex
defmodule Mix.Tasks.Nerves.Loadpaths do
use Mix.Task
import Mix.Nerves.IO
@moduledoc false
def run(_args) do
unless System.get_env("NERVES_PRECOMPILE") == "1" do
debug_info("Loadpaths Start")
case Code.ensure_compiled?(Nerves.Env) do
true ->
try do
Mix.Task.run("nerves.env", [])
Nerves.Env.bootstrap()
clear_deps_cache()
env_info()
rescue
e ->
reraise e, System.stacktrace()
end
false ->
Mix.Task.run("nerves.precompile")
end
debug_info("Loadpaths End")
end
end
def env(k) do
case System.get_env(k) do
unset when unset == nil or unset == "" -> "unset"
set -> Path.relative_to_cwd(set)
end
end
def env_info do
debug_info("Environment Variable List", """
target: #{Mix.Project.config()[:target] || "unset"}
toolchain: #{env("NERVES_TOOLCHAIN")}
system: #{env("NERVES_SYSTEM")}
app: #{env("NERVES_APP")}
""")
end
defp clear_deps_cache() do
if :erlang.function_exported(Mix.Project, :clear_deps_cache, 0) do
apply(Mix.Project, :clear_deps_cache, [])
else
if project = Mix.Project.get() do
key = {:cached_deps, Mix.env(), project}
Agent.cast(Mix.ProjectStack, &%{&1 | cache: Map.delete(&1.cache, key)})
end
end
end
end