From a4b4d90da8b48a81b63fccb7a337555c674a4f5d Mon Sep 17 00:00:00 2001
From: Anantha Kumaran <ananthakumaran@gmail.com>
Date: Thu, 19 May 2022 11:03:07 +0530
Subject: [PATCH] allow custom propagator

---
 CHANGELOG.md                                  | 6 ++++++
 apps/opentelemetry/src/otel_configuration.erl | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index a445a97e..c81dcffd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [SDK]
+
+### Fixed
+
+- [Allow custom text propagator to be configured via application env](https://github.com/open-telemetry/opentelemetry-erlang/pull/408)
+
 ## SDK 1.0.5 - 2022-05-20
 
 ### Fixed
diff --git a/apps/opentelemetry/src/otel_configuration.erl b/apps/opentelemetry/src/otel_configuration.erl
index 4f59de74..30c38989 100644
--- a/apps/opentelemetry/src/otel_configuration.erl
+++ b/apps/opentelemetry/src/otel_configuration.erl
@@ -454,6 +454,8 @@ transform(propagator, Value) when Value =:= "b3" ;
 %% TODO: support jager propagator format
 %% transform(propagator, "jaeger") ->
 %%     jaeger;
+transform(propagator, Propagator) when is_atom(Propagator) ->
+    Propagator;
 transform(propagator, Propagator) ->
     ?LOG_WARNING("Ignoring unknown propagator ~ts in OS environment variable $OTEL_PROPAGATORS",
                  [Propagator]),