From 0b23a620af427634d73f712f9325c48f7a0eb342 Mon Sep 17 00:00:00 2001
From: Marcel Otto <marcelotto@gmx.de>
Date: Thu, 17 Mar 2022 23:22:51 +0100
Subject: [PATCH] Allow easy switching of RDF.ex packages during development

---
 mix.exs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/mix.exs b/mix.exs
index ae13ac4..5d08183 100644
--- a/mix.exs
+++ b/mix.exs
@@ -63,7 +63,7 @@ defmodule JSON.LD.Mixfile do
 
   defp deps do
     [
-      {:rdf, "~> 0.9"},
+      rdf_ex_dep(:rdf, "~> 0.9"),
       {:jason, "~> 1.2"},
       {:httpoison, "~> 1.6"},
       {:dialyxir, "~> 1.1", only: :dev, runtime: false},
@@ -73,6 +73,13 @@ defmodule JSON.LD.Mixfile do
     ]
   end
 
+  defp rdf_ex_dep(dep, version) do
+    case System.get_env("RDF_EX_PACKAGES_SRC") do
+      "LOCAL" -> {dep, path: "../#{dep}"}
+      _ -> {dep, version}
+    end
+  end
+
   defp dialyzer do
     [
       plt_file: {:no_warn, "priv/plts/dialyzer.plt"}