From ebbe27625ba2594bd71f2b48f0f38d67ed805c02 Mon Sep 17 00:00:00 2001
From: Nathan Perry <np@nathanperry.dev>
Date: Tue, 28 Jan 2020 20:05:52 -0500
Subject: dotenv loading works

---
 config/dotenv.exs | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 config/dotenv.exs

(limited to 'config/dotenv.exs')

diff --git a/config/dotenv.exs b/config/dotenv.exs
new file mode 100644
index 0000000..b084ba1
--- /dev/null
+++ b/config/dotenv.exs
@@ -0,0 +1,40 @@
+defmodule Thulani.Config.Dotenv do
+  require Logger
+
+  def load_dotenv! do
+    {:ok, projroot} = __DIR__ |> get_projroot
+
+    contents =
+      case projroot |> Path.join(".env") |> File.read() do
+        {:error, :enoent} ->
+          Logger.warn("skipping dotenv file: doesn't exist")
+          ""
+
+        {:ok, contents} ->
+          contents
+      end
+
+    contents
+    |> String.split("\n")
+    |> Enum.map(&String.trim/1)
+    |> Enum.filter(fn x -> x != "" end)
+    |> Enum.map(fn x ->
+      result = String.split(x, "=")
+      {Enum.at(result, 0), Enum.at(result, 1)}
+    end)
+    |> System.put_env()
+  end
+
+  defp get_projroot(base) do
+    result =
+      with {:ok, info} <- base |> Path.join(".thulani_root") |> File.stat(),
+           :regular <- info.type,
+           do: {:ok, base}
+
+    case result do
+      {:error, :enoent} -> get_projroot(base |> Path.join("..") |> Path.expand())
+      {:ok, "/"} -> {:error, "couldn't find .thulani_root"}
+      x -> x
+    end
+  end
+end
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