From 809c25fd076070f3e142bf814bcf43d7b8107253 Mon Sep 17 00:00:00 2001
From: Steffen Deusch <steffen@deusch.me>
Date: Tue, 27 May 2025 11:31:07 +0200
Subject: [PATCH 1/3] support passing NODE_PATH as list

---
 lib/esbuild.ex | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/lib/esbuild.ex b/lib/esbuild.ex
index 701407b..308735a 100644
--- a/lib/esbuild.ex
+++ b/lib/esbuild.ex
@@ -175,7 +175,7 @@ defmodule Esbuild do
 
     opts = [
       cd: config[:cd] || File.cwd!(),
-      env: config[:env] || %{},
+      env: normalize_env(config[:env] || %{}),
       into: IO.stream(:stdio, :line),
       stderr_to_stdout: true
     ]
@@ -324,4 +324,17 @@ defmodule Esbuild do
         end
     end
   end
+
+  defp normalize_env(%{"NODE_PATH" => paths} = env) when is_list(paths) do
+    Map.put(env, "NODE_PATH", Enum.join(paths, path_sep()))
+  end
+
+  defp normalize_env(env), do: env
+
+  defp path_sep do
+    case :os.type() do
+      {:win32, _} -> ";"
+      {:unix, _} -> ":"
+    end
+  end
 end

From e818a2785820bd91a64b686aa6011216117de052 Mon Sep 17 00:00:00 2001
From: Steffen Deusch <steffen@deusch.me>
Date: Tue, 27 May 2025 11:32:05 +0200
Subject: [PATCH 2/3] update CI

---
 .github/workflows/main.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 16729fd..f8a6f57 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -6,7 +6,7 @@ on:
       - main
 jobs:
   test:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     env:
       MIX_ENV: test
     strategy:

From 6f8b4dffe66600bf02b0a319a58a3920a7bf7f52 Mon Sep 17 00:00:00 2001
From: Steffen Deusch <steffen@deusch.me>
Date: Tue, 27 May 2025 12:39:13 +0200
Subject: [PATCH 3/3] join all lists

---
 lib/esbuild.ex | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/lib/esbuild.ex b/lib/esbuild.ex
index 308735a..ee59812 100644
--- a/lib/esbuild.ex
+++ b/lib/esbuild.ex
@@ -325,12 +325,13 @@ defmodule Esbuild do
     end
   end
 
-  defp normalize_env(%{"NODE_PATH" => paths} = env) when is_list(paths) do
-    Map.put(env, "NODE_PATH", Enum.join(paths, path_sep()))
+  defp normalize_env(env) do
+    Map.new(env, fn
+      {key, value} when is_list(value) -> {key, Enum.join(value, path_sep())}
+      other -> other
+    end)
   end
 
-  defp normalize_env(env), do: env
-
   defp path_sep do
     case :os.type() do
       {:win32, _} -> ";"