From f49b997a2849aff4965e79eafbc8dd9093e5333d Mon Sep 17 00:00:00 2001
From: Alexandre Hamez <alexandre.hamez@gmail.com>
Date: Wed, 27 Nov 2024 18:42:00 +0100
Subject: [PATCH] feat: use System.tmp_dir() rather than
 Mix.Project.build_path()

Useful when using protox in Livebook, as Mix.Project.build_path() returns an invalid path.
---
 lib/protox.ex        | 2 +-
 lib/protox/protoc.ex | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/protox.ex b/lib/protox.ex
index 1f8804b..5092016 100644
--- a/lib/protox.ex
+++ b/lib/protox.ex
@@ -241,7 +241,7 @@ defmodule Protox do
     case Keyword.pop(opts, :schema) do
       {<<text::binary>>, opts} ->
         filename = "#{Base.encode16(:crypto.hash(:sha, text))}.proto"
-        filepath = [Mix.Project.build_path(), filename] |> Path.join() |> Path.expand()
+        filepath = [System.tmp_dir!(), filename] |> Path.join() |> Path.expand()
         File.write!(filepath, text)
         {[filepath], opts}
 
diff --git a/lib/protox/protoc.ex b/lib/protox/protoc.ex
index 86bbb2e..20be56b 100644
--- a/lib/protox/protoc.ex
+++ b/lib/protox/protoc.ex
@@ -25,7 +25,7 @@ defmodule Protox.Protoc do
 
   defp do_run(proto_files, args) do
     outfile_name = "protox_#{random_string()}"
-    outfile_path = Path.join([Mix.Project.build_path(), outfile_name])
+    outfile_path = Path.join([System.tmp_dir!(), outfile_name])
 
     cmd_args = ["--include_imports", "-o", outfile_path] ++ args ++ proto_files