Move Mix project to the root dir

This commit moves the mix.exs, mix.lock and priv directors that were
inside app/ to the root directory. Configuration tweaks with paths were
done for the asset building.

The priv/ directory had to be moved because mix by default symlinks it
inside the build output, and I couldn't find a configuration option to
have it live inside app/

.gitignore

@@ -2,3 +2,7 @@
 /.db/
 /.vagrant/
 /.direnv/
+/deps/
+/_build/
+/priv/static/assets/
+/priv/static/cache_manifest.json

app/.gitignore

@@ -1,12 +1,6 @@
-# The directory Mix will write compiled artifacts to.
-/_build/
-
 # If you run "mix test --cover", coverage assets end up here.
 /cover/
 
-# The directory Mix downloads your dependencies sources to.
-/deps/
-
 # Where 3rd-party dependencies like ExDoc output generated docs.
 /doc/
 
@@ -25,12 +19,6 @@ erl_crash.dump
 # Ignore package tarball (built via "mix hex.build").
 prymn-*.tar
 
-# Ignore assets that are produced by build tools.
-/priv/static/assets/
-
-# Ignore digested assets cache.
-/priv/static/cache_manifest.json
-
 # In case you use Node.js/npm, you want to ignore these.
 npm-debug.log
 /assets/node_modules/

app/config/config.exs

@@ -34,9 +34,9 @@ config :esbuild,
   version: "0.17.11",
   default: [
     args:
-      ~w(js/app.js --bundle --target=es2017 --outdir=../priv/static/assets --external:/fonts/* --external:/images/*),
+      ~w(js/app.js --bundle --target=es2017 --outdir=../../priv/static/assets --external:/fonts/* --external:/images/*),
     cd: Path.expand("../assets", __DIR__),
-    env: %{"NODE_PATH" => Path.expand("../deps", __DIR__)}
+    env: %{"NODE_PATH" => Path.expand("../../deps", __DIR__)}
   ]
 
 # Configure tailwind (the version is required)
@@ -46,7 +46,7 @@ config :tailwind,
     args: ~w(
       --config=tailwind.config.js
       --input=css/app.css
-      --output=../priv/static/assets/app.css
+      --output=../../priv/static/assets/app.css
     ),
     cd: Path.expand("../assets", __DIR__)
   ]

mix.exs

@@ -8,6 +8,7 @@ defmodule Prymn.MixProject do
       elixir: "~> 1.15",
       compilers: [:proto | Mix.compilers()],
       elixirc_paths: elixirc_paths(Mix.env()),
+      config_path: Path.expand("app/config/config.exs", __DIR__),
       start_permanent: Mix.env() == :prod,
       aliases: aliases(),
       deps: deps()
@@ -25,8 +26,8 @@ defmodule Prymn.MixProject do
   end
 
   # Specifies which paths to compile per environment.
-  defp elixirc_paths(:test), do: ["lib", "test/support"]
-  defp elixirc_paths(_), do: ["lib"]
+  defp elixirc_paths(:test), do: ["app/lib", "app/test/support"]
+  defp elixirc_paths(_), do: ["app/lib"]
 
   # Specifies your project dependencies.
   #
@@ -62,7 +63,7 @@ defmodule Prymn.MixProject do
       {:tailwind_formatter, "~> 0.3.6", runtime: Mix.env() == :dev},
       {:phoenix_live_reload, "~> 1.2", only: :dev},
       {:dialyxir, "~> 1.4", only: [:dev], runtime: false},
-      {:prymn_proto_compiler, path: "../proto_compiler", runtime: false}
+      {:prymn_proto_compiler, path: "proto_compiler", runtime: false}
     ]
   end
 

proto_compiler/lib/mix/tasks/compile.proto.ex

@@ -5,8 +5,8 @@ defmodule Mix.Tasks.Compile.Proto do
 
   @impl true
   def run(_args) do
-    output = "./lib/prymn_proto"
-    sources = Path.wildcard("../proto/*.proto")
+    output = "./app/lib/prymn_proto"
+    sources = Path.wildcard("proto/*.proto")
     targets = Path.wildcard(output <> "/*.pb.ex")
 
     if Mix.Utils.stale?(sources, targets) do
@@ -27,7 +27,7 @@ defmodule Mix.Tasks.Compile.Proto do
         "--elixir_out=plugins=grpc:" <> output,
         "--elixir_opt=package_prefix=prymn_proto",
         "-I",
-        "../proto"
+        "proto"
       ] ++ sources
     )
   end